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This manual is copyrighted with all rights reserved. Under the copyright laws, this manual may changes in the contents of this manual over a long or short period, Canon will issue a new not be copied, reproduced or translated into another language, in whole or in part, without the edition of this manual.
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Explanation of Symbols The following rules apply throughout this Service Manual: The following symbols are used throughout this Service Manual. 1. Each chapter contains sections explaining the purpose of specific functions and the relationship between electrical and mechanical systems with reference to the timing of Symbols Explanation Symbols...
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Overview ------------------------------------------------------------------------------------- 2-11 Overview -------------------------------------------------------------------------------------2-22 Controlling the Laser Activation Timing --------------------------------------2-12 Main Parts of Fixing assembly ---------------------------------------------------------2-22 Various Control Mechanisms --------------------------------------------------2-23 Laser ON/OFF Control -------------------------------------------------------------------2-12 Horizontal Sync Control ------------------------------------------------------------------2-12 Fixing Temperature Control -------------------------------------------------------------2-23 Laser Control -----------------------------------------------------------------------2-13 Protective Functions ----------------------------------------------------------------------2-23 Other Functions -------------------------------------------------------------------2-24 Auto Power Control (APC) --------------------------------------------------------------2-13 Laser Scanner Motor Control --------------------------------------------------2-13 Throughput Down Control ---------------------------------------------------------------2-24...
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Consumables ----------------------------------------------------------------------- 3-2 Preparation ----------------------------------------------------------------------------------4-18 Procedure ------------------------------------------------------------------------------------4-18 Periodical Service -------------------------------------------------------------3-3 Removing the Upper Cover(MF4890dw/4880dw) ------------------------4-18 Scheduled Servicing -------------------------------------------------------------- 3-3 Preparation ----------------------------------------------------------------------------------4-18 Cleaning -------------------------------------------------------------------------3-3 Procedure ------------------------------------------------------------------------------------4-18 Printer --------------------------------------------------------------------------------- 3-3 Removing the Left Cover(MF4870dn/MF4830d)--------------------------4-20 Reader ADF ------------------------------------------------------------------------- 3-4 Procedure ------------------------------------------------------------------------------------4-20 SADF ------------------------------------------------------------------------------------------ 3-4 Removing the Right Cover(MF4870dn/MF4830d)------------------------4-21 DADF ------------------------------------------------------------------------------------------ 3-4 Procedure ------------------------------------------------------------------------------------4-21...
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Removing the Right Cover(MF4780w/MF4770n/MF4750/MF4730) -4-33 Preparation ----------------------------------------------------------------------------------4-47 Procedure ------------------------------------------------------------------------------------4-47 Procedure ------------------------------------------------------------------------------------4-33 Removing the DADF Motor Unit (MF4890dw/MF4880dw) -------------4-50 Removing the Front Cover Unit(MF4780w/MF4770n/MF4750/MF4730) - Preparation ----------------------------------------------------------------------------------4-50 4-34 Procedure ------------------------------------------------------------------------------------4-50 Preparation ----------------------------------------------------------------------------------4-34 Removing the DADF Solenoid Unit (MF4890dw/MF4880dw) ---------4-51 Procedure ------------------------------------------------------------------------------------4-34 Preparation ----------------------------------------------------------------------------------4-51 Removing the Upper Cover MF4780w/MF4770n/MF4750/MF4730) 4-34 Procedure ------------------------------------------------------------------------------------4-51...
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Removing the SADF Separation Pad(MF4870dn/MF4830d) ----------4-71 Preparation ----------------------------------------------------------------------------------4-90 Procedure ------------------------------------------------------------------------------------4-90 Preparation ----------------------------------------------------------------------------------4-71 Removing the SADF Unit and Reader Unit(MF4780w/MF4770n/ Procedure ------------------------------------------------------------------------------------4-71 Removing the Copyboard Glass(MF4870dn/MF4830d) ----------------4-74 MF4750/MF4730) -----------------------------------------------------------------4-92 Preparation ----------------------------------------------------------------------------------4-74 Preparation ----------------------------------------------------------------------------------4-92 Procedure ------------------------------------------------------------------------------------4-74 Procedure ------------------------------------------------------------------------------------4-92 Removing the Flatbed Motor Unit(MF4870dn/MF4830d) ---------------4-75 Removing the SADF Unit (MF4780w/MF4770n/MF4750/MF4730) --4-93 Preparation ----------------------------------------------------------------------------------4-75 Preparation ----------------------------------------------------------------------------------4-93...
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Removing the Copyboard Cover (MF4720w/MF4712/MF4710) ---- 4-109 Preparation -------------------------------------------------------------------------------- 4-128 Procedure ---------------------------------------------------------------------------------- 4-128 Procedure ---------------------------------------------------------------------------------- 4-109 Removing the Flatbed Motor Unit (L418S/L410/L190) ---------------- 4-130 Removing the Copyboard Cover and Reader Unit (MF4720w/MF4712/ Preparation -------------------------------------------------------------------------------- 4-130 MF4710) --------------------------------------------------------------------------- 4-109 Procedure ---------------------------------------------------------------------------------- 4-130 Preparation -------------------------------------------------------------------------------- 4-109 Removing the DADF CIS Unit (L418S/L410/L190)--------------------- 4-132 Procedure ---------------------------------------------------------------------------------- 4-109...
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MF4880dw) ----------------------------------------------------------------------- 4-149 Procedure ---------------------------------------------------------------------------------- 4-169 Removing the Toner Sensor and Multi Pickup Sensor Unit (MF4870dn) - Preparation -------------------------------------------------------------------------------- 4-149 4-172 Procedure ---------------------------------------------------------------------------------- 4-149 Removing the Toner Sensor and Multi Pickup Sensor Unit (MF4890dw/ Preparation -------------------------------------------------------------------------------- 4-172 MF4880dw) ----------------------------------------------------------------------- 4-151 Procedure ---------------------------------------------------------------------------------- 4-172 Removing the Speaker (MF4870dn) --------------------------------------- 4-174 Preparation -------------------------------------------------------------------------------- 4-151...
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Preparation -------------------------------------------------------------------------------- 4-192 Removing the FAX NCU PCB (MF4780w/MF4770n/MF4750/) ----- 4-221 Procedure ---------------------------------------------------------------------------------- 4-192 Preparation -------------------------------------------------------------------------------- 4-221 Removing the Main Motor (D530) ------------------------------------------ 4-195 Procedure ---------------------------------------------------------------------------------- 4-221 Preparation -------------------------------------------------------------------------------- 4-195 Removing the Wireless LAN PCB (MF4780w) -------------------------- 4-221 Procedure ---------------------------------------------------------------------------------- 4-195 Preparation -------------------------------------------------------------------------------- 4-221 Removing the Main Fan (D530) --------------------------------------------- 4-199 Procedure ---------------------------------------------------------------------------------- 4-221...
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MF4712/MF4710) --------------------------------------------------------------- 4-241 Preparation -------------------------------------------------------------------------------- 4-262 Procedure ---------------------------------------------------------------------------------- 4-262 Preparation -------------------------------------------------------------------------------- 4-241 Removing the Toner Sensor and Multi Pickup Sensor Unit (L418S/ Procedure ---------------------------------------------------------------------------------- 4-241 Removing the Toner Sensor and Multi Pickup Sensor Unit (MF4720w/ L410/L190) ----------------------------------------------------------------------- 4-265 MF4712/MF4710) --------------------------------------------------------------- 4-244 Preparation -------------------------------------------------------------------------------- 4-265 Procedure ---------------------------------------------------------------------------------- 4-265 Preparation -------------------------------------------------------------------------------- 4-244...
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Removing the Transfer Roller (MF4820d) -------------------------------- 4-283 Procedure ---------------------------------------------------------------------------------- 4-311 Removing the Pickup Tray Unit (MF4890dw/MF4880dw) ------------ 4-314 Procedure ---------------------------------------------------------------------------------- 4-283 Removing the Transfer Roller (D530) -------------------------------------- 4-284 Preparation -------------------------------------------------------------------------------- 4-314 Procedure ---------------------------------------------------------------------------------- 4-314 Procedure ---------------------------------------------------------------------------------- 4-284 Removing the Pickup Roller (MF4890dw/MF4880dw) ---------------- 4-316 Removing the Transfer Roller (MF4780w/MF4770n/MF4750/MF4730) -- Preparation -------------------------------------------------------------------------------- 4-316 4-285...
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Preparation -------------------------------------------------------------------------------- 4-336 Procedure ---------------------------------------------------------------------------------- 4-359 Procedure ---------------------------------------------------------------------------------- 4-336 Removing the Pickup Unit (MF4780w/MF4770n/MF4750/MF4730) ------- Removing the Pickup Tray Unit (MF4820d) ------------------------------ 4-339 4-362 Preparation -------------------------------------------------------------------------------- 4-339 Preparation -------------------------------------------------------------------------------- 4-362 Procedure ---------------------------------------------------------------------------------- 4-339 Procedure ---------------------------------------------------------------------------------- 4-362 Removing the Pickup Roller (MF4820d) ---------------------------------- 4-341 Removing the Pickup Tray Unit (MF4780w/MF4770n/MF4750/MF4730) Preparation -------------------------------------------------------------------------------- 4-341 4-365...
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Removing the Pickup Tray Unit (L418S/L410/L190) ------------------- 4-383 What to Prepare ----------------------------------------------------------------------------- 6-7 Operation Procedure----------------------------------------------------------------------- 6-7 Preparation -------------------------------------------------------------------------------- 4-383 Troubleshooting ----------------------------------------------------------------------------- 6-8 Procedure ---------------------------------------------------------------------------------- 4-383 Removing the Pickup Roller (L418S/L410/L190) ----------------------- 4-385 7 Error Codes Preparation -------------------------------------------------------------------------------- 4-385 Procedure ---------------------------------------------------------------------------------- 4-385 Overview ------------------------------------------------------------------------7-2 Removing the Pickup Solenoid (L418S/L410/L190) ------------------- 4-386 Error Codes ---------------------------------------------------------------------7-3...
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Service Tools -------------------------------------------------------------------9-2 JAM -------------------------------------------------------------------------------------------- 8-7 FEEDER -------------------------------------------------------------------------8-8 Solvent/Oil List -----------------------------------------------------------------9-3 ADJUST ------------------------------------------------------------------------------ 8-8 General Circuit Diagram -----------------------------------------------------9-4 FUNCTION -------------------------------------------------------------------------- 8-8 MF4890dw/MF4880dw/MF4870dn ----------------------------------------------------- 9-4 FAX -------------------------------------------------------------------------------8-9 MF4830d/MF4820d ------------------------------------------------------------------------ 9-5 MF4780w/MF4770n/MF4750 ------------------------------------------------------------ 9-6 List of SSSW ------------------------------------------------------------------------ 8-9 MF4730 --------------------------------------------------------------------------------------- 9-7 List of Menu ------------------------------------------------------------------------8-10 MF4720w/MF4712/MF4710-------------------------------------------------------------- 9-8 List of NUM ------------------------------------------------------------------------- 8-11...
Safety Precautions > Laser Safety > Handling Laser Scanner Unit CDRH Provisions Laser Safety Food and Drug CDRH (Center for Devices and Radiological Health) under FDA (Food and About Laser Beams Drug Administration) enforced provisions of the section for laser and laser products on August 2, 1976.
Safety Precautions > Notes on Assembly/Disassembly Toner Safety Notes on Assembly/Disassembly Follow the items below to assemble/disassemble the device. About Toner 1. Disconnect the power plug to avoid any potential dangers during assembling/disassembling works. Toner is a nontoxic matter composed of plastic, iron and a trace of pigments. 2.
Product Overview > Product Lineups > Main Unit Product Lineups Model MF4820d Config 3in1 PLATEN Main Unit Model MF4890dw MF4880dw MF4870dn MF4830d Config 4in1 DADF+WN 4in1 SADF+WN 4in1 SADF+N 3in1 SADF Design Design DADF SADF PLATEN 2-Sided Engine 1-Sided LAN port DADF Wireless LAN SADF...
Product Overview > Product Lineups > Options Options MF4780w/MF4770n/MF4750/ Model D530 MF4730 • Hand Set Only FAX Model DADF SADF PLATEN 2-Sided Engine 1-Sided LAN port Yes( MF4780w/MF4770n/MF4750) Wireless LAN Yes( MF4780w) MF4780w/MF4770n/MF4750) Yes( T-1-3 Model MF4720w/MF4712/MF4710 L418S/L410/L190 Config 3in1 PLATEN 4in1 DADF Design DADF...
Product Overview > Product Specifications > Main Unit Specifications Features Product Specifications Features Main Unit Specifications 1. Small-size, high-speed monochrome printer Copyboard Fixed This equipment has a compact body that realizes high-speed print of 25 ppm (A4) / 26 ppm Device Installation Desktop Light source...
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Product Overview > Product Specifications > Main Unit Specifications Print Speed MF4890dw/MF4880dw/MF4870dn/MF4830d/MF4820d/D530/ Maximum power consumption MF4890dw/MF4880dw/MF4870dn/MF4830d/MF4820d/MF4780w/ L418S/L410/L190 MF4770n/MF4750/MF4730/MF4720w/MF4712/MF4710 120 V model : 1110 W or less 25 ppm (A4) 230 V model : 1320W or less MF4780w/MF4770n/MF4750/MF4730/MF4720w/MF4712/MF4710 D530/L418S/L410/L190 23 ppm (A4) 120 V model : 1110 W or less Copy speed MF4890dw/MF4880dw/MF4870dn/MF4830d/MF4820d/D530/...
Product Overview > Product Specifications > FAX Specifications Wireless LAN Specifications FAX Specifications (MF4890dw/MF4880dw/MF4870dn/MF4780w/MF4770n/MF4750) Standard IEEE802.11g/IEEE802.11b/IEEE 802.11n* Transmission Scheme DS-SS System/OFDM System Line Used Public Switched Telephone Network (PSTN)*1 Frequency Range 2412 to 2472 MHz Communication Mode Super G3, G3 Data Transmission •...
Product Overview > Name of Parts > External View > MF4890dw/MF4880dw Name of Parts (L418S/L410/L190) Line Used Public Switched Telephone Network (PSTN)*1 Communication Mode Super G3, G3 External View Compression Method MH, MR, MMR Modem Speed Super G3: 33.6 Kbps, G3: 14.4 Kbps ■...
Product Overview > Name of Parts > External View > MF4870dn/MF4830d/MF4780w/MF4770n/MF4750/MF4730 ■ MF4870dn/MF4830d/MF4780w/MF4770n/MF4750/MF4730 Name Name [10] Multi-Purpose Tray [23] Power Switch ● Front Side [11] Tray Cover [24] Front Cover Switch [12] Pickup Tray Paper Guides [25] Copyboard Upper Cover [13] Trailing Edge Paper Guides [2] [3]...
Product Overview > Name of Parts > External View > MF4820d/MF4720w/MF4712/MF4710 ● Rear Side ■ MF4820d/MF4720w/MF4712/MF4710 ● Front Side [11] HA ND SE T EX T. HAND EXT. LINE [17] LIN E F-1-4 Name [10] [16] USB Device Port LAN Port [15] External Device Jack [13]...
Product Overview > Name of Parts > External View > D530 1-10 ● Rear Side ■ D530 ● Front Side [10] HA ND SE T EX T. HAND EXT. LINE [16] LIN E F-1-6 Name USB Device Port [15] [11] Power Supply Cord Slot Rear Cover [14]...
Product Overview > Name of Parts > External View > L418S/L410/L190 1-11 ● Rear Side ■ L418S/L410/L190 ● Front Side [16] [15] HA ND SE T EX T. HAND EXT. [22] LINE [14] LIN E F-1-8 [13] [21] [17] Name USB Device Port [20] Power Supply Cord Slot...
Product Overview > Name of Parts > Cross Section > SADF 1-12 Cross Section Rear Side ■ DADF HA ND SE T EX T. HAND EXT. LINE LIN E F-1-11 F-1-10 Name Registration roller Pickup roller Name Separation pad USB Device Port Delivery roller LAN Port Separation roller...
Product Overview > Name of Parts > Control Panel > MF4890dw/MF4880dw/MF4830d/MF4820d 1-14 Control Panel ■ Printer ● MF4780w/MF4770n/MF4750/MF4730/MF4720w/MF4712/MF4710 ■ MF4890dw/MF4880dw/MF4830d/MF4820d F-1-16 [12] [11] [10] F-1-15 Name Name Fixing Pressure Roller Multi-Purpose Tray Fixing Film Unit Photosensitive Drum Delivery Roller Pickup Roller Fixing Assembly [10] Separation Pad...
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Product Overview > Name of Parts > Control Panel > MF4890dw/MF4880dw/MF4830d/MF4820d 1-15 Press to send the scanned documents to the registered (1) Mode switching keys Press to switch the mode to copy, fax, or scan [Scan>PC1] key/ computer for each key. (2) [One-touch Speed Dial] keys Press to select destinations registered in one-touch keys.
Product Overview > Name of Parts > Control Panel > MF4780w/MF4770n/MF4750/MF4730/MF4720/MF4712/MF4710 1-16 ■ MF4780w/MF4770n/MF4750/MF4730/MF4720/MF4712/ (1) Mode switching keys Press to switch the mode to copy, fax, or scan (2) [One-touch Speed Dial] keys Press to select destinations registered in one-touch keys. MF4710 [Address Book] key Press to search for recipients who are registered under one-...
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Product Overview > Name of Parts > Control Panel > D530 1-17 ■ D530 Press to send the scanned documents to the registered [Scan>PC1] key/ computer for each key. [Scan>PC2] key "[Scan>PC1] key/[Scan>PC2] key" Press to copy with a preset setting to save paper. [Paper Save Copy] key "[Paper Save Copy] key"...
Product Overview > Name of Parts > Control Panel > L418S/L410/L190 1-18 ■ L418S/L410/L190 (1) Mode switching keys Press to switch the mode to copy or scan. (2) [N on 1] key Press to select the setting for printing multiple documents onto one sheet.
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Product Overview > Name of Parts > Control Panel > L418S/L410/L190 1-19 (1) [FAX/COPY] key Press to switch the mode to copy or fax. (2) LCD During normal operation, displays messages and prompts. When adjusting the settings, displays your selections, text, and numbers.
Technical Overview ■ Basic Configuration ■ Controller System ■ Document Exposure/Feeder System ■ Laser Exposure System ■ Image Formation System ■ Fixing System ■ Pickup And Feeding System ■ External And Controls System Technical Overview...
Technical Overview > Basic Configuration > Basic Sequence > Basic Sequence of Operation Basic Configuration Basic Sequence ■ Basic Sequence of Operation Configuration function The engine controller controls the operation sequence. The following table provides an outline The machine may be broadly divided into the following 7 functional blocks: engine control of machine operation occurring from when the power switch is turned on to when printing system, document exposure/feeding system, laser exposure system, image formation system, ends and motors stop, indicating the purposes of intervals and engine operation.
Technical Overview > Controller System > Engine Controller > General description Controller System Engine Controller ■ General description Main Controller Engine controller is the circuit to control the operation sequence of the host machine and it is ■ General description controlled by the CPU inside the engine controller.
Technical Overview > Controller System > Service Works > Notes on service works Service Works ■ At parts replacement No work is required for this product at parts replacement. ■ Maintenance No periodically replaced parts, durable parts or periodical service is set for this product. ■...
Technical Overview > Document Exposure/Feeder System > Document Exposure System > Major Components Document Exposure/Feeder System ■ Major Components Followings are the major components for Document Exposure System. Document Exposure System • The contact sensor to scan document • The Reader motor, the drive pulley, the drive belt, to shift the contact sensor ■...
Technical Overview > Document Exposure/Feeder System > Document Feeder System > Overview Document Feeder System ● DADF Pickup/Feed/Delivery Operation ■ Overview The Double-side Auto Document Feeder (DADF) mounted onto this host machine is dedicated to stream-reading. ● SADF 1 motor (DADF motor) is engaged in pickup/feeding/delivery. The Single-side Auto Document Feeder (SADF) mounted onto this host machine is dedicated At the start of copy/fax/scan, the DADF motor is driven by the drive command from the Main to stream-reading.
Technical Overview > Document Exposure/Feeder System > Document Feeder System > Various Control • Reverse to Reading of the 2nd side ■ Various Control ● Original Detection There are two types of original detection in this equipment. 1. Original Presence / Absence Detection Detected by DS (Document Sensor) As the actuator is pushed up by placing an original on the Original Tray, DS of SADF is turned ON(light is blocked =>light is transmitted) and DS of DADF is turned OFF (light is...
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Technical Overview > Document Exposure/Feeder System > Document Feeder System > Various Control In the case of SADF ● Jam Detection Document The following cases are judged as jam. Sensor 1. In case of delay in reaching DS/DES or stationary during scanning of original 2.
Technical Overview > Document Exposure/Feeder System > Service Works > Notes on service works 2-10 Service Works ■ At parts replacement No work is required for this product at parts replacement. ■ Maintenance No periodically replaced parts, durable parts or periodical service is set for this product. ■...
Technical Overview > Laser Exposure System > Overview > Overview 2-11 Laser Exposure System The operational sequence of the laser scanner unit is described below. 1) When the Main controller sends print instruction command, the Engine controller rotates the Four-faced mirror, causing the Scanner motor to rotate. Overview 2) When the Scanner motor starts to rotate, the Engine controller emits the laser forcibly ■...
Technical Overview > Laser Exposure System > Controlling the Laser Activation Timing > Horizontal Sync Control 2-12 Controlling the Laser Activation Timing The engine controller sends the laser control signals (CNT0, CNT1, CNT2) for changing the operation mode of the laser to the logic circuit in the laser driver IC, as well as the video ■...
Technical Overview > Laser Exposure System > Laser Scanner Motor Control > Overview 2-13 Laser Control Laser Scanner Motor Control ■ Auto Power Control (APC) ■ Overview This is the control to emit a constant level of laser diode. This is the control to rotate the scanner motor at a constant speed to emit the laser beam on There are two types of APC;...
Technical Overview > Laser Exposure System > Service Works > Notes on service works 2-14 ■ Scanner Motor Fault Detection This is the detection of faults in the laser scanner unit. When the laser scanner unit falls into either of the following status, the engine controller judges it as a fault in the laser scanner unit system and notices the status of fault to the main controller.
Technical Overview > Image Formation System > Overview/Configuration > Print Process 2-15 Image Formation System ■ Print Process This explains the basic process of the operations that a printer executes for image formation. Overview/Configuration The print process of this equipment is divided largely into 5 blocks, 7 steps. Toner images are formed on papers by executing the steps of each block in order.
Technical Overview > Image Formation System > Overview/Configuration > Static Latent Image Formation Block 2-16 ■ Static Latent Image Formation Block Step 2: Laser beam exposure In this step, static latent images are formed on the photosensitive drum with laser beam. This block is comprised of two steps and forms static latent images on the photosensitive When laser beams are scanned on the photosensitive drum negatively charged, bright areas drum.
Technical Overview > Image Formation System > Overview/Configuration > Transfer Block 2-17 ■ Development Block ■ Transfer Block This block is comprised of one step; it puts toners to the static latent images on the surface of This block is comprised of two steps; it transfers toner images on the surface of the the photosensitive drum and visualizes the images using toner projection development.
Technical Overview > Image Formation System > Overview/Configuration > Drum Cleaning Block 2-18 Step 5: Separation ■ Drum Cleaning Block In this step, DC negative bias is applied to the static eliminator according to the elasticity of The drum cleaning block removes the toner remained on the photosensitive drum. papers to separate the papers from the photosensitive drum.
Technical Overview > Image Formation System > High-Voltage Control > Generating Transfer Bias 2-19 High-Voltage Control ■ Generating Developing Bias The developing bias is a DC negative bias that is output to affix toner to the static latent ■ Overview images formed on the photosensitive drum.
Technical Overview > Image Formation System > Toner Cartridge > Operation when toner level is Low/Nearly Out 2-20 Toner Cartridge ■ Specification of Toner level display Toner level can be checked by pressing Status Monitor/Cancel key and selecting toner level. ■...
Technical Overview > Image Formation System > Service Works > Notes on service works 2-21 ■ Toner Cartridge Absence/Presence Detection If jam occurs when ‘Toner cartridge absent’ is detected, check if there is a fault in the leading edge sensor and the detection flag. The engine controller detects the position of the Toner cartridge detection flag to judge the absence/presence of the Toner cartridge.
Technical Overview > Fixing System > Overview/Configuration > Main Parts of Fixing assembly 2-22 Fixing System ■ Main Parts of Fixing assembly Engine controller Overview/Configuration Fixing control FIXING HEATER ■ Overview DRIVE signal Fixing/delivery system consists of the fixing film unit, pressure roller and delivery roller etc. Fixing heater These rollers are driven by the main motor (M1).
Technical Overview > Fixing System > Various Control Mechanisms > Protective Functions 2-23 Various Control Mechanisms There are 11 types of target fixing temperature depending on the fixing mode. These types are according to the paper type settings and resolution settings on a driver. ■...
Technical Overview > Fixing System > Other Functions > Throughput Down Control 2-24 by monitoring the temperature for every 5 msec, it is judged as Thermistor short circuit Other Functions failure. In addition, this function also doubles as abnormal high temperature detection ■...
Technical Overview > Fixing System > Service Works > Notes on service works 2-25 Number of Fed Sheets Half speed Half speed Half speed Half speed ー 1 to 2 11 ppm 12 ppm 7 ppm 9 ppm 12 ppm ー...
Technical Overview > Pickup And Feeding System > Detecting Jams > Jam Detection Outline 2-27 Detecting Jams The pickup and feeding system executes pickup and feeding of papers and is composed of the main motor, solenoid, and rollers. ■ Jam Detection Outline In this equipment, pickup from the pickup tray and manual feed tray is available.
Technical Overview > Pickup And Feeding System > Detecting Jams > Delay Jams 2-28 ■ Delay Jams B. When there is a preceding paper 1 ● Delivery Delay Jam Paper Lead Edge Sensor There are 3 types of delivery delay jam detections as follows: A.
Technical Overview > Pickup And Feeding System > Reversal Delay Jam 2-29 Reversal Delay Jam ● Delivery Delay during cleaning A delivery delay jam is determined if the Fixing Delivery Sensor (PS701) fails to detect A reversal delay jam is determined when the Fixing Delivery Sensor (PS701) detects absence presence of paper within 1235 msec since the Paper Lead Edge Sensor (PS751) detected of paper at the time of 440 msec elapsed after the start of reversal operation.
Technical Overview > Pickup And Feeding System > Reversal Delay Jam > Stationary Jams 2-30 ■ Stationary Jams ● Pickup Stationary Jam during auto delivery A pickup stationary jam is determined if the Paper Lead Edge Sensor (PS751) detects ● Pickup Stationary Jam presence of paper at the time of 1115 msec elapsed after the start of auto delivery and then Without pre-feed, a feed stationary jam is determined if the TOP sensor (PS751) cannot the Paper Lead Edge Sensor (PS751) detects presence of paper after the paper continued to...
Technical Overview > Pickup And Feeding System > Reversal Delay Jam > Other Jams 2-31 ■ Other Jams ● No-paper detection during cleaning ● Fixing Wrap Jam Solenoid Paper Lead Edge 1370 Sensor Paper Lead Edge Sensor Fixing Delivery paper detection Sensor period (110)
Technical Overview > Pickup And Feeding System > Service Works > Notes on service works 2-32 Service Works ■ At parts replacement No work is required for this product at parts replacement. ■ Maintenance No periodically replaced parts, durable parts or periodical service is set for this product. ■...
Technical Overview > External And Controls System > Power Supply > Protective Functions 2-33 External And Controls System ■ Protective Functions ● Power protective function Power Supply Low voltage power circuit carries the overcurrent preventive function against and overvoltage preventive function that block the voltage output automatically to prevent the power circuit ■...
Technical Overview > External And Controls System > Service Works > Notes on service works 2-34 Service Works ■ At parts replacement No work is required for this product at parts replacement. ■ Maintenance No periodically replaced parts, durable parts or periodical service is set for this product. ■...
Periodical Services > Consumables > Consumables Periodically Replaced Parts Consumables Periodically Replaced Parts Consumables There is no periodically replaced part with this machine. There is no consumable with this machine. Periodical Services > Consumables > Consumables...
Periodical Services > Cleaning > Printer Periodical Service Cleaning Scheduled Servicing Printer There is no portion that requires schedule servicing in this equipment. [7] [8] F-3-1 Cleaning parts Procedure Duplex Feed Roller Clean it with a dry lint-free paper. Fixing inlet guide Clean it with a dry lint-free paper.
Periodical Services > Cleaning > Reader ADF > DADF Reader ADF ■ DADF ■ SADF F-3-3 Cleaning parts Procedure DADF Pickup Roller Unit Open the ADF and wipe off the smudge with the soft dry cloth. F-3-2 DADF Separation Pad Open the ADF and wipe off the smudge with the soft dry cloth.
Disassembly/Assembly ■ List of Parts ■ List of Connectors ■ External Cover, Interior ■ Document Exposure/Feeder System ■ Controller System ■ Laser Exposure System ■ Image Formation System ■ Fixing System ■ Pickup And Feeding System Disassembly/Assembly...
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Disassembly/Assembly > Outline Outline This chapter describes disassembling/assembling procedure of this equipment. The service technician is to identify the cause of the failures according to "Chapter 6 Troubleshooting" and to replace the faulty parts by following the disassembling procedure. In addition, replace the consumable parts by following the same disassembling procedure.
Disassembly/Assembly > List of Parts > Main Unit > Lists of SADF Unit List of Parts Main Unit ■ Lists of SADF Unit ■ Lists of DADF Unit F-4-2 Name Reference Remarks F-4-1 Name Reference Remarks Original Sensor Original Sensor Original Edge Sensor DADF Motor SADF Motor...
Disassembly/Assembly > List of Parts > Duplex Printer Unit > Lists of Motor/Fan Duplex Printer Unit ■ Lists of Reader Unit ■ Lists of Motor/Fan F-4-3 Name Reference Remarks CIS Sensor Reader Motor F-4-4 Name Reference Remarks Main Motor Main Fan Unit Laser Scanner Unit Disassembly/Assembly >...
Disassembly/Assembly > List of Parts > Duplex Printer Unit > List of Sensor ■ Lists of Solenoid ■ List of Sensor F-4-5 Name Reference Remarks F-4-6 Duplex Solenoid Name Reference Remarks Pickup Solenoid Encoder Sensor Multi Pickup Sensor Toner Sensor Paper Leading Edge Sensor Paper Width Sensor...
Disassembly/Assembly > List of Parts > Duplex Printer Unit > List of Heater/Thermoswitch/Thermistor ■ List of Switch and Speaker ■ List of Heater/Thermoswitch/Thermistor F-4-8 F-4-7 Name Reference Remarks Name Reference Remarks Thermoswitch [1] Speaker Fixing Heater [2] Power Switch Thermistor [3] Speaker L418S/L410/L190 [4] Door Switch...
Disassembly/Assembly > List of Parts > Single-sided Printer Unit > List of Motor/Fan Single-sided Printer Unit ■ List of PCB ■ List of Motor/Fan [12] [11] [10] F-4-10 Name Reference Remarks F-4-9 Main Motor Name Reference Remarks Laser Scanner Motor Control Panel PCB Duplex Driver PCB Motor Driver PCB...
Disassembly/Assembly > List of Parts > Single-sided Printer Unit > List of Solenoid ■ List of Solenoid ● List of Sensor F-4-11 F-4-12 Name Reference Remarks Name Reference Remarks Pickup Solenoid Encoder Sensor Multi Pickup Sensor Toner Sensor Paper Leading Edge Sensor Paper Width Sensor Fixing Delivery Sensor Disassembly/Assembly >...
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Disassembly/Assembly > List of Parts > Single-sided Printer Unit > List of Solenoid ● List of Switch and Speaker ● List of Heater/Thermoswitch/Thermistor F-4-14 F-4-13 Name Reference Remarks Name Reference Remarks Thermoswitch [1] Speaker Fixing Heater [2] Power Switch Thermistor [3] Door switch Disassembly/Assembly >...
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Disassembly/Assembly > List of Parts > Single-sided Printer Unit > List of Solenoid 4-10 ● List of PCB [11] [10] F-4-15 Name Reference Remarks Control Panel PCB Motor Driver PCB Laser Driver PCB WiFi Module PCB Switch PCB Off Hook PCB 100V Model Only FAX-NCU PCB Main Controller PCB...
Disassembly/Assembly > List of Connectors > SADF Unit 4-11 List of Connectors DADF Unit SADF Unit J1402 J1402 J1401 J1403 J1403 F-4-16 J No. Name Relay J No. Name Remarks J No. Name Relay J No. Name Remarks Connector Connector Main Controller PCB J1402 DES Sensor Main Controller PCB...
Disassembly/Assembly > List of Connectors > Duplex Printer Unit 4-12 Reader Unit Duplex Printer Unit J702 J802 J1101 J701 J1103 J1102 J751 J101 J1154 J562 J1153 J551 J1151 J552 F-4-17 J571 Relay J No. Name J No. Name Remarks J801 J542 Connector Main Controller PCB...
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Disassembly/Assembly > List of Connectors > Duplex Printer Unit 4-13 J No. Name Relay J No. Name Remarks Connector J1152 Motor Driver PCB J1152 Main Motor J581 Engine Controller PCB - Memory Tag J905 J901 Engine Controller PCB - Toner Sensor Model with FAX J901 J1152...
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Disassembly/Assembly > List of Connectors > Single-sided Printer Unit 4-15 Relay J No. Name J No. Name Remarks Connector J1152 Motor Driver PCB J1152 Main Motor J581 Engine Controller PCB - Memory Tag J901 Engine Controller PCB - Toner Sensor Model with FAX (MF4780w/MF4770n/ MF4750)
Disassembly/Assembly > External Cover, Interior > Removing the Left Cover(MF4890dw/4880dw) 4-16 External Cover, Interior 2) Remove the 2 rear claws [1] 3)Place the machine with its right side down, and remove the claw[2] on the underside. Removing the Left Cover(MF4890dw/4880dw) Note: The locations of the 5 left cover claws [1] and 3 hooks [2] are shown here.
Disassembly/Assembly > External Cover, Interior > Removing the Right Cover(MF4890dw/4880dw) 4-17 Removing the Right Cover(MF4890dw/4880dw) 2) Remove the 2 rear claws [1] 3)Place the machine with its right side down, and remove the claw[2] on the underside. Note: The locations of the 5 right cover claws [1] and 3 hooks [2] are shown here. F-4-27 4)Return the host machine to its original position.
Disassembly/Assembly > External Cover, Interior > Removing the Upper Cover(MF4890dw/4880dw) > Procedure 4-18 Removing the Front Cover Unit(MF4890dw/4880dw) Removing the Upper Cover(MF4890dw/4880dw) ■ Preparation ■ Preparation 1) Remove the left cover. 1) Remove the left cover. 2)Remove the right cover. 2)Remove the DADF unit and reader unit.
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Disassembly/Assembly > External Cover, Interior > Removing the Upper Cover(MF4890dw/4880dw) > Procedure 4-19 4)Raise the delivery tray[1] vertically and remove it. Caution: Be sure to put the cartridge arm[1] through the hole[A] of the upper cover when installing F-4-31 5)Remove the upper cover[1] 4 screws(black TP)[2] F-4-33 F-4-32...
Disassembly/Assembly > External Cover, Interior > Removing the Left Cover(MF4870dn/MF4830d) > Procedure 4-20 Removing the Left Cover(MF4870dn/MF4830d) 2) Remove the 2 rear claws [1] 3)Place the machine with its right side down, and remove the claw[2] on the underside. ■ Procedure Note: The locations of the 5 left cover claws [1] and 3 hooks [2] are shown here.
Disassembly/Assembly > External Cover, Interior > Removing the Right Cover(MF4870dn/MF4830d) > Procedure 4-21 2) Remove the 2 rear claws [1] Removing the Right Cover(MF4870dn/MF4830d) 3)Place the machine with its right side down, and remove the claw[2] on the underside. ■ Procedure Note: The locations of the 5 left cover claws [1] and 3 hooks [2] are shown here.
Disassembly/Assembly > External Cover, Interior > Removing the Upper Cover (MF4870dn/MF4830d) > Procedure 4-22 Removing the Front Cover Unit(MF4870dn/MF4830d) Removing the Upper Cover (MF4870dn/MF4830d) ■ Preparation ■ Preparation 1) Remove the left cover. 1) Remove the left cover. 2)Remove the right cover 2)Remove the SADF unit and reader unit.
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Disassembly/Assembly > External Cover, Interior > Removing the Upper Cover (MF4870dn/MF4830d) > Procedure 4-23 4)Raise the delivery tray[1] vertically and remove it. Caution: Be sure to put the cartridge arm[1] through the hole[A] of the upper cover when installing F-4-44 5)Remove the upper cover[1] 4 screws(black TP)[2] F-4-46...
Disassembly/Assembly > External Cover, Interior > Removing the Left Cover(MF4820d) > Procedure 4-24 Removing the Left Cover(MF4820d) 2) Remove the 2 rear claws [1] 3)Place the machine with its right side down, and remove the claw[2] on the underside. ■ Procedure Note: The locations of the 5 left cover claws [1] and 3 hooks [2] are shown here.
Disassembly/Assembly > External Cover, Interior > Removing the Right Cover(MF4820d) > Procedure 4-25 2) Remove the 2 rear claws [1] Removing the Right Cover(MF4820d) 3)Place the machine with its right side down, and remove the claw[2] on the underside. ■ Procedure Note: The locations of the 5 left cover claws [1] and 3 hooks [2] are shown here.
Disassembly/Assembly > External Cover, Interior > Removing the Upper Cover (MF4820d) > Procedure 4-26 Removing the Front Cover Unit(MF4820d) Removing the Upper Cover (MF4820d) ■ Preparation ■ Preparation 1) Remove the left cover. 1) Remove the left cover. 2)Remove the right cover 2)Remove the copyboard cover and reader unit.
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Disassembly/Assembly > External Cover, Interior > Removing the Upper Cover (MF4820d) > Procedure 4-27 4)Raise the delivery tray[1] vertically and remove it. Caution: Be sure to put the cartridge arm[1] through the hole[A] of the upper cover when installing F-4-57 5)Remove the upper cover[1] •...
Disassembly/Assembly > External Cover, Interior > Removing the Left Cover(D530) > Procedure 4-28 Removing the Left Cover(D530) 2) Remove the 2 rear claws [1] 3)Place the machine with its right side down, and remove the claw[2] on the underside. ■ Procedure Note: The locations of the 5 left cover claws [1] and 3 hooks [2] are shown here.
Disassembly/Assembly > External Cover, Interior > Removing the Right Cover(D530) > Procedure 4-29 2) Remove the 2 rear claws [1] Removing the Right Cover(D530) 3)Place the machine with its right side down, and remove the claw[2] on the underside. ■ Procedure Note: The locations of the 5 left cover claws [1] and 3 hooks [2] are shown here.
Disassembly/Assembly > External Cover, Interior > Removing the Upper Cover (D530) > Procedure 4-30 Removing the Front Cover Unit(D530) Removing the Upper Cover (D530) ■ Preparation ■ Preparation 1) Remove the left cover. 1) Remove the left cover. 2)Remove the right cover 2)Remove the copyboard cover and reader unit.
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Disassembly/Assembly > External Cover, Interior > Removing the Upper Cover (D530) > Procedure 4-31 4)Raise the delivery tray[1] vertically and remove it. Caution: Be sure to put the cartridge arm[1] through the hole[A] of the upper cover when installing F-4-70 5)Remove the upper cover[1] •...
Disassembly/Assembly > External Cover, Interior > Removing the Left Cover(MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-32 Removing the Left Cover(MF4780w/MF4770n/MF4750/ 2) Remove the 2 rear claws [1] 3)Place the machine with its right side down, and remove the claw[2] on the underside. MF4730) ■...
Disassembly/Assembly > External Cover, Interior > Removing the Right Cover(MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-33 Removing the Right Cover(MF4780w/MF4770n/ 2) Remove the 2 rear claws [1] MF4750/MF4730) 3)Place the machine with its right side down, and remove the claw[2] on the underside. ■...
Disassembly/Assembly > External Cover, Interior > Removing the Upper Cover MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-34 Removing the Front Cover Unit(MF4780w/MF4770n/ Removing the Upper Cover MF4780w/MF4770n/ MF4750/MF4730) MF4750/MF4730) ■ Preparation ■ Preparation 1) Remove the left cover. 1) Remove the left cover. 2)Remove the right cover 2)Remove the SADF unit and reader unit.
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Disassembly/Assembly > External Cover, Interior > Removing the Upper Cover MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-35 4)Raise the delivery tray[1] vertically and remove it. Caution: Be sure to put the cartridge arm[1] through the hole[A] of the upper cover when installing F-4-83 5)Remove the upper cover[1] 4 screws(black TP)[2] F-4-85...
Disassembly/Assembly > External Cover, Interior > Removing the Left Cover(MF4720w/MF4712/MF4710) > Procedure 4-36 Removing the Left Cover(MF4720w/MF4712/MF4710) 2) Remove the 2 rear claws [1] 3)Place the machine with its right side down, and remove the claw[2] on the underside. ■ Procedure Note: The locations of the 5 left cover claws [1] and 3 hooks [2] are shown here.
Disassembly/Assembly > External Cover, Interior > Removing the Right Cover(MF4720w/MF4712/MF4710) > Procedure 4-37 2) Remove the 2 rear claws [1] Removing the Right Cover(MF4720w/MF4712/MF4710) 3)Place the machine with its right side down, and remove the claw[2] on the underside. ■ Procedure Note: The locations of the 5 left cover claws [1] and 3 hooks [2] are shown here.
Disassembly/Assembly > External Cover, Interior > Removing the Upper Cover (MF4720w/MF4712/MF4710) > Procedure 4-38 Removing the Front Cover Unit(MF4720w/ Removing the Upper Cover (MF4720w/MF4712/ MF4712/4710) MF4710) ■ Preparation ■ Preparation 1) Remove the left cover. 1) Remove the left cover. 2)Remove the right cover 2)Remove the copyboard cover and reader unit.
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Disassembly/Assembly > External Cover, Interior > Removing the Upper Cover (MF4720w/MF4712/MF4710) > Procedure 4-39 4)Raise the delivery tray[1] vertically and remove it. Caution: Be sure to put the cartridge arm[1] through the hole[A] of the upper cover when installing F-4-96 5)Remove the upper cover[1] •...
Disassembly/Assembly > External Cover, Interior > Removing the Left Cover(L418S/L410/L190) > Procedure 4-40 Removing the Left Cover(L418S/L410/L190) 2) Remove the 2 rear claws [1] 3)Place the machine with its right side down, and remove the claw[2] on the underside. ■ Procedure Note: The locations of the 5 left cover claws [1] and 3 hooks [2] are shown here.
Disassembly/Assembly > External Cover, Interior > Removing the Right Cover(L418S/L410/L190) > Procedure 4-41 2) Remove the 2 rear claws [1] Removing the Right Cover(L418S/L410/L190) 3)Place the machine with its right side down, and remove the claw[2] on the underside. ■ Procedure Note: The locations of the 5 left cover claws [1] and 3 hooks [2] are shown here.
Disassembly/Assembly > External Cover, Interior > Removing the Upper Cover (L418S/L410/L190)) > Procedure 4-42 Removing the Front Cover Unit(L418S/L410/L190) Removing the Upper Cover (L418S/L410/L190)) ■ Preparation ■ Preparation 1) Remove the left cover. 1) Remove the left cover. 2)Remove the right cover 2)Remove the SADF unit and reader unit.
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Disassembly/Assembly > External Cover, Interior > Removing the Upper Cover (L418S/L410/L190)) > Procedure 4-43 4)Raise the delivery tray[1] vertically and remove it. Caution: Be sure to put the cartridge arm[1] through the hole[A] of the upper cover when installing F-4-109 5)Remove the upper cover[1] 4 screws(black TP)[2] F-4-111...
Disassembly/Assembly > Document Exposure/Feeder System > Removing the DADF Unit and Reader Unit(MF4890dw/MF4880dw) > Procedure 4-44 Document Exposure/Feeder System Removing the DADF Unit and Reader Unit(MF4890dw/ MF4880dw) ■ Preparation 1) Remove the left cover. ■ Procedure 1) Remove the 2 grounding wires[1]. •...
Disassembly/Assembly > Document Exposure/Feeder System > Removing the DADF Unit (MF4890dw/MF4880dw) > Procedure 4-45 Removing the DADF Unit (MF4890dw/MF4880dw) Caution: ■ Preparation When installing the DADF unit and reader unit, secure the 2 hinge arm claws[1] to 1) Remove the left cover. the 2 hooks[2] of the reader unit.
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Disassembly/Assembly > Document Exposure/Feeder System > Removing the DADF Unit (MF4890dw/MF4880dw) > Procedure 4-46 Caution: Caution: Be sure to hold the connector cover when removing it. Before installing the connector cover, be sure to store the harness, grounding wire, and flat cable in the [A] part. 2)Release the lock[1] on the lower left front side of the reader unit, and open the DADF unit.
Disassembly/Assembly > Document Exposure/Feeder System > Removing the DADF Pickup Unit (MF4890dw/MF4880dw) > Procedure 4-47 Removing the DADF Pickup Unit (MF4890dw/ 3)Remove the DADF unit[1] by lift it up and then raising it vertically. MF4880dw) ■ Preparation 1) Remove the left cover. 2)Remove the DADF unit and reader unit 3)Remove the DADF unit.
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Disassembly/Assembly > Document Exposure/Feeder System > Removing the DADF Pickup Unit (MF4890dw/MF4880dw) > Procedure 4-48 3)Open the DADF tray[1] until it stops. Then release the claw by pushing the hook[2] in the direction of the arrow[A] with a flat-blade screwdriver, and move the tray in the direction of the arrow.
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Disassembly/Assembly > Document Exposure/Feeder System > Removing the DADF Pickup Unit (MF4890dw/MF4880dw) > Procedure 4-49 5)Remove the DADF upper rear cover[1]. 7)Remove the DADF unit communication cable[1] from the harness guide[A]. • 1 boss[2] • 3 hooks[3] F-4-124 8)Remove the DADF unit. F-4-122 5 screws[2] 6)Remove the DADF upper cover[1].
Disassembly/Assembly > Document Exposure/Feeder System > Removing the DADF Motor Unit (MF4890dw/MF4880dw) > Procedure 4-50 Removing the DADF Motor Unit (MF4890dw/ MF4880dw) ■ Preparation 1) Remove the left cover. 2)Remove the DADF unit and reader unit 3)Remove the DADF unit. ■...
Disassembly/Assembly > Document Exposure/Feeder System > Removing the DADF Solenoid Unit (MF4890dw/MF4880dw) > Procedure 4-51 Removing the DADF Solenoid Unit (MF4890dw/ Caution: MF4880dw) When assembling the DADF solenoid unit, be sure to put the solenoid shaft [1] ■ Preparation through the hole [A] on the solenoid arm. When assembling the DADF solenoid unit, ensure that the 2 DADF pickup unit 1) Remove the left cover.
Disassembly/Assembly > Document Exposure/Feeder System > Removing the DADF Pickup Roller Unit (MF4890dw/MF4880dw) > Procedure 4-52 Removing the DADF Pickup Roller Unit (MF4890dw/ MF4880dw) ■ Preparation 1) Remove the left cover. 2)Remove the DADF unit and reader unit 3)Remove the DADF unit. 4)Remove the pickup unit.
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Disassembly/Assembly > Document Exposure/Feeder System > Removing the DADF Pickup Roller Unit (MF4890dw/MF4880dw) > Procedure 4-53 4)Remove the bushing[1],pin[2] and 2 e-rings[3] 5)Pull out pickup roller shaft[1], and remove the pickup roller[2], bushing[A], bushing[B], and gear[3]. Caution: When disassembling/assembling, take care not to lose the plate spring[1] and gear[2] F-4-134 Note...
Disassembly/Assembly > Document Exposure/Feeder System > Removing the DADF Separation Pad(MF4890dw/MF4880dw) > Procedure 4-54 Removing the DADF Separation Pad(MF4890dw/ 6)Remove the pickup roller unit[1] • pickup roller shaft[2] MF4880dw) • pickup roller 2[3] • 1 bushing[A] ■ Preparation • 1 bushing[B] 1) Remove the left cover.
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Disassembly/Assembly > Document Exposure/Feeder System > Removing the DADF Separation Pad(MF4890dw/MF4880dw) > Procedure 4-55 2)Remove the separation pad unit[1]. 3)Remove the separation pad[1]. • 2 claws[2] • 2 hooks[2] • 2 protrusions[3] Caution. Caution. Do not touch the pad surface[1] Be sure to hold the separation pad unit with your fingers when releasing its 2 When disassembling/assembling, take care not to lose the spring[2] on the back side protrusions[3]...
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Disassembly/Assembly > Document Exposure/Feeder System > Removing the DADF Separation Pad(MF4890dw/MF4880dw) > Procedure 4-56 Caution. 3)Install the spring to the protrusion[1] of the DADF pickup upper cover. When the spring[1] comes off, go through the following steps to install it. 1)Install the spring[1] to the boss[2] on the back side of the separation pad.
Disassembly/Assembly > Document Exposure/Feeder System > Removing the Copyboard Glass(MF4890dw/MF4880dw) > Procedure 4-57 Removing the Copyboard Glass(MF4890dw/ 3)Remove the reader upper cover[1] • 6 claws[2] MF4880dw) • 1 hook[3] ■ Preparation 1) Remove the left cover. 2)Remove the DADF unit and reader unit 3)Remove the DADF unit.
Disassembly/Assembly > Document Exposure/Feeder System > Removing the Flatbed Motor Unit(MF4890dw/MF4880dw) > Procedure 4-58 Removing the Flatbed Motor Unit(MF4890dw/ MF4880dw) ■ Preparation 1) Remove the left cover. 2)Remove the DADF unit and reader unit 3)Remove the DADF unit. 4)Remove the copyboard glass ■...
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Disassembly/Assembly > Document Exposure/Feeder System > Removing the Flatbed Motor Unit(MF4890dw/MF4880dw) > Procedure 4-59 1)Move the CIS unit[1]. F-4-144 3)Remove the guide cover[1] F-4-143 2)Move the gear[1], and remove the belt[2] from the gear[3] Caution. Grease is applied on the shaft[1] of the contact sensor, so be careful not to let the belt[2] come in contact with the shaft.
Disassembly/Assembly > Document Exposure/Feeder System > Removing the DADF CIS Unit(MF4890dw/MF4880dw) > Procedure 4-60 Removing the DADF CIS Unit(MF4890dw/MF4880dw) 5)Remove the flatbed motor unit[1] • 2 screws[2] ■ Preparation 1) Remove the left cover. 2)Remove the DADF unit and reader unit 3)Remove the DADF unit.
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Disassembly/Assembly > Document Exposure/Feeder System > Removing the DADF CIS Unit(MF4890dw/MF4880dw) > Procedure 4-61 1)Move the CIS unit[1] 3)Remove the CIS unit[1] • 2 shafts[2] F-4-148 F-4-150 2)Remove 2 spacers[1] and flat cable[2]. • 1 guide[A] Caution. If the CIS unit comes off, be sure to align the tooth[1] on the belt with the tooth[2] on the bottom of the CIS unit to install the unit.
Disassembly/Assembly > Document Exposure/Feeder System > Removing the SADF Unit and Reader Unit(MF4870dn/MF4830d) > Procedure 4-62 Removing the SADF Unit and Reader Unit(MF4870dn/ 4)Remove the DADF unit and reader unit. • 2 claws[2] MF4830d) Caution: ■ Preparation When placing the removed copyboard cover and reader unit on the desk, floor, 1) Remove the left cover.
Disassembly/Assembly > Document Exposure/Feeder System > Removing the SADF Unit (MF4870dn/MF4830d) > Procedure 4-63 Removing the SADF Unit (MF4870dn/MF4830d) Caution: ■ Preparation When installing the DADF unit and reader unit, secure the 2 hinge arm claws[1] to 1) Remove the left cover. the 2 hooks[2] of the reader unit.
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Disassembly/Assembly > Document Exposure/Feeder System > Removing the SADF Unit (MF4870dn/MF4830d) > Procedure 4-64 2)Free the reader harness[1] from the cut-off[A] Caution: Be sure to hold the connector cover when removing it. F-4-154 3)Release the lock[1] on the lower left front side of the reader unit, and open the SADF unit[2] Caution: Before installing the connector cover, be sure to store the harness, grounding wire, and flat cable in the [A] part.
Disassembly/Assembly > Document Exposure/Feeder System > Removing the SADF Pickup Unit (MF4870dn/MF4830d) > Procedure 4-65 Removing the SADF Pickup Unit (MF4870dn/MF4830d) 4)Remove the SADF unit[1] by lifting it up while pushing the claw[2] ■ Preparation Caution: 1) Remove the left cover. Be sure to avoid damaging the bottom sheet when placing the removed SADF unit.
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Disassembly/Assembly > Document Exposure/Feeder System > Removing the SADF Pickup Unit (MF4870dn/MF4830d) > Procedure 4-66 3)Remove the SADF front cover[1]. 4)Free the boss[1], and open the SADF upper cover[2] by the amount for which the boss is • 2 claws[2] freed.
Disassembly/Assembly > Document Exposure/Feeder System > Removing the SADF Motor Unit (MF4870dn/MF4830d) > Procedure 4-67 Removing the SADF Motor Unit (MF4870dn/MF4830d) Caution: ■ Preparation When install the SADF upper cover, be sure that the guide[1] does not get inside 1) Remove the left cover. the[A] part.
Disassembly/Assembly > Document Exposure/Feeder System > Removing the SADF Pickup Roller 1,2 (MF4870dn/MF4830d) > Procedure 4-68 Removing the SADF Pickup Roller 1,2 (MF4870dn/ 3)Remove the tube[1] protecting the harness. • 2 harnesses bands[2] MF4830d) ■ Preparation 1) Remove the left cover. 2)Remove the SADF unit and reader unit 3)Remove the SADF unit.
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Disassembly/Assembly > Document Exposure/Feeder System > Removing the SADF Pickup Roller 1,2 (MF4870dn/MF4830d) > Procedure 4-69 2)Remove the SADF upper cover[1]. 4)Remove the pickup roller unit[1]. 2 shafts[2] F-4-170 5)Remove the spring[1] on the back side of the pickup roller unit. F-4-169 3)Remove the gear[1],bushing[2],2 e-rings[3] and bushing[4] Caution:...
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Disassembly/Assembly > Document Exposure/Feeder System > Removing the SADF Pickup Roller 1,2 (MF4870dn/MF4830d) > Procedure 4-70 6)Remove the bushing[1],pin[2] and 2 e-rings[3]. 8)Remove the pickup roller unit 2[1]. • 1 pickup roller shaft2[2] • 1 pickup roller 2[3] • 1 bushing[4] •...
Disassembly/Assembly > Document Exposure/Feeder System > Removing the SADF Separation Pad(MF4870dn/MF4830d) > Procedure 4-71 Removing the SADF Separation Pad(MF4870dn/ 2)Remove the separation pad unit[1]. • 2 claws[2] MF4830d) • 2 protrusions[3] ■ Preparation Caution. 1) Remove the left cover. Be sure to hold the separation pad unit with your fingers when releasing its 2 2)Remove the SADF unit and reader unit protrusions[3] 3)Remove the SADF unit.
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Disassembly/Assembly > Document Exposure/Feeder System > Removing the SADF Separation Pad(MF4870dn/MF4830d) > Procedure 4-72 3)Remove the separation pad[1]. • 2 hooks[2] Caution. When the spring[1] comes off, go through the following steps to install it. Caution. 1)Install the spring[1] to the boss[2] on the back side of the separation pad. Do not touch the pad surface[1] When disassembling/assembling, take care not to lose the spring[2] on the back side of the separation pad.
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Disassembly/Assembly > Document Exposure/Feeder System > Removing the SADF Separation Pad(MF4870dn/MF4830d) > Procedure 4-73 3)Install the spring to the protrusion[1] of the SADF pickup upper cover. 5)Turn the SADF pickup upper cover over to the front, and push in the separation pad unit[1].
Disassembly/Assembly > Document Exposure/Feeder System > Removing the Copyboard Glass(MF4870dn/MF4830d) > Procedure 4-74 Removing the Copyboard Glass(MF4870dn/MF4830d) 3)Remove the reader upper cover[1] • 6 claws[2] ■ Preparation • 1 hook[3] 1) Remove the left cover. 2)Remove the SADF unit and reader unit 3)Remove the SADF unit.
Disassembly/Assembly > Document Exposure/Feeder System > Removing the Flatbed Motor Unit(MF4870dn/MF4830d) > Procedure 4-75 Removing the Flatbed Motor Unit(MF4870dn/MF4830d) ■ Preparation 1) Remove the left cover. 2)Remove the SADF unit and reader unit 3)Remove the SADF unit. 4)Remove the copyboard glass ■...
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Disassembly/Assembly > Document Exposure/Feeder System > Removing the Flatbed Motor Unit(MF4870dn/MF4830d) > Procedure 4-76 1)Move the CIS unit[1]. 3)Remove the guide cover[1] F-4-183 F-4-182 2)Move the gear[1], and remove the belt[2] from the gear[3] Caution. Grease is applied on the shaft[1] of the contact sensor, so be careful not to let the belt[2] come in contact with the shaft.
Disassembly/Assembly > Document Exposure/Feeder System > Removing the SADF CIS Unit(MF4870dn/MF4830d) > Procedure 4-77 Removing the SADF CIS Unit(MF4870dn/MF4830d) 5)Remove the flatbed motor unit[1] • 2 screws[2] ■ Procedure 1)Remove the left cover. 2)Remove the SADF unit and reader unit 3)Remove the SADF unit.
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Disassembly/Assembly > Document Exposure/Feeder System > Removing the SADF CIS Unit(MF4870dn/MF4830d) > Procedure 4-78 1)Move the CIS unit[1] 3)Remove the CIS unit[1] • 2 shafts[2] F-4-187 F-4-189 2)Remove 2 spacers[1] and flat cable[2]. • 1 guide[A] Caution. If the CIS unit comes off, be sure to align the tooth[1] on the belt with the tooth[2] on the bottom of the CIS unit to install the unit.
Disassembly/Assembly > Document Exposure/Feeder System > Removing the Copyboard Cover and Reader Unit (MF4820d) > Procedure 4-79 Removing the Copyboard Cover (MF4820d) Removing the Copyboard Cover and Reader Unit (MF4820d) ■ Procedure ■ Preparation 1) Remove the copyboard cover[1] 1) Remove the left cover. ■...
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Disassembly/Assembly > Document Exposure/Feeder System > Removing the Copyboard Cover and Reader Unit (MF4820d) > Procedure 4-80 4)Remove the copyboard cover and reader unit. • 2 claws[2] Caution: When mounting the reader unit and copyboard cover, fix the 2 hinge arm claws [1] to the 2 latches [2] of the reader unit.
Disassembly/Assembly > Document Exposure/Feeder System > Removing the Copyboard Glass(MF4820d) > Procedure 4-81 Removing the Copyboard Glass(MF4820d) 3)Remove the copyboard glass[1]. ■ Preparation Caution. 1)Remove the copyboard cover. 2)Remove the control panel unit. Place the detached copyboard glass cover on a cloth etc. to avoid damaging the bottom sheet.
Disassembly/Assembly > Document Exposure/Feeder System > Removing the Flatbed Motor Unit(MF4820d) > Procedure 4-82 Removing the Flatbed Motor Unit(MF4820d) 1)Move the CIS unit[1]. ■ Preparation 1) Remove the left cover. 2)Remove the copyboard cover . 3)Remove the control panel. 4)Remove the copyboard glass. ■...
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Disassembly/Assembly > Document Exposure/Feeder System > Removing the Flatbed Motor Unit(MF4820d) > Procedure 4-83 5)Remove the flatbed motor unit[1] • 2 screws[2] F-4-198 3)Remove the guide cover[1] F-4-201 F-4-199 4)Free the harness[1] and the grounding wire[2] from the hole[A] of the reader unit and the harness guide[B] F-4-200 4-83...
Disassembly/Assembly > Document Exposure/Feeder System > Removing the CIS Unit(MF4820d) > Procedure 4-84 Removing the CIS Unit(MF4820d) 1)Move the CIS unit[1] ■ Preparation 1) Remove the copyboard cover. 2)Remove the control panel unit. 3)Remove the copyboard glass Caution. ■ Procedure When assembling/disassembling the CIS unit, take care not to lose the 2 CIS unit spacers [1].
Disassembly/Assembly > Document Exposure/Feeder System > Removing the Copyboard Cover (D530) > Procedure 4-85 Removing the Copyboard Cover (D530) 3)Remove the CIS unit[1] • 2 shafts[2] ■ Procedure 1) Remove the copyboard cover[1] F-4-204 Caution. If the CIS unit comes off, be sure to align the tooth[1] on the belt with the tooth[2] on F-4-205 the bottom of the CIS unit to install the unit.
Disassembly/Assembly > Document Exposure/Feeder System > Removing the Copyboard Cover and Reader Unit (D530) > Procedure 4-86 Removing the Copyboard Cover and Reader Unit 4)Remove the copyboard cover and reader unit. • 2 claws[2] (D530) ■ Preparation Caution: When placing the removed copyboard cover and reader unit on the desk, floor, 1) Remove the left cover.
Disassembly/Assembly > Document Exposure/Feeder System > Removing the Copyboard Glass(D530) > Procedure 4-87 Removing the Copyboard Glass(D530) Caution: ■ Preparation When mounting the reader unit and copyboard cover, fix the 2 hinge arm claws [1] to the 2 latches [2] of the reader unit. 1)Remove the copyboard cover.
Disassembly/Assembly > Document Exposure/Feeder System > Removing the Flatbed Motor Unit(D530) > Procedure 4-88 Removing the Flatbed Motor Unit(D530) Caution. ■ Preparation Place the detached copyboard glass cover on a cloth etc. to avoid damaging the 1) Remove the left cover. bottom sheet.
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Disassembly/Assembly > Document Exposure/Feeder System > Removing the Flatbed Motor Unit(D530) > Procedure 4-89 F-4-213 3)Remove the guide cover[1] F-4-212 2)Move the gear[1], and remove the belt[2] from the gear[3] Caution. Grease is applied on the shaft[1] of the contact sensor, so be careful not to let the belt[2] come in contact with the shaft.
Disassembly/Assembly > Document Exposure/Feeder System > Removing the CIS Unit(D530) > Procedure 4-90 Removing the CIS Unit(D530) 5)Remove the flatbed motor unit[1] • 2 screws[2] ■ Preparation 1) Remove the copyboard cover. 2)Remove the control panel unit. 3)Remove the copyboard glass Caution.
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Disassembly/Assembly > Document Exposure/Feeder System > Removing the CIS Unit(D530) > Procedure 4-91 1)Move the CIS unit[1] 3)Remove the CIS unit[1] • 2 shafts[2] F-4-217 F-4-219 2)Remove 2 spacers[1] and flat cable[2]. • 1 guide[A] Caution. If the CIS unit comes off, be sure to align the tooth[1] on the belt with the tooth[2] on the bottom of the CIS unit to install the unit.
Disassembly/Assembly > Document Exposure/Feeder System > Removing the SADF Unit and Reader Unit(MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-92 Removing the SADF Unit and Reader Unit(MF4780w/ 4)Remove the DADF unit and reader unit. • 2 claws[2] MF4770n/MF4750/MF4730) Caution: ■ Preparation When placing the removed copyboard cover and reader unit on the desk, floor, 1) Remove the left cover.
Disassembly/Assembly > Document Exposure/Feeder System > Removing the SADF Unit (MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-93 Removing the SADF Unit (MF4780w/MF4770n/ MF4750/MF4730) Caution: When installing the DADF unit and reader unit, secure the 2 hinge arm claws[1] to the 2 hooks[2] of the reader unit. ■...
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Disassembly/Assembly > Document Exposure/Feeder System > Removing the SADF Unit (MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-94 2)Free the reader harness[1] from the cut-off[A] Caution: Be sure to hold the connector cover when removing it. F-4-223 3)Release the lock[1] on the lower left front side of the reader unit, and open the SADF unit[2] Caution: Before installing the connector cover, be sure to store the harness, grounding wire, and flat cable in the [A] part.
Disassembly/Assembly > Document Exposure/Feeder System > Removing the SADF Pickup Unit (MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-95 Removing the SADF Pickup Unit (MF4780w/MF4770n/ 4)Remove the SADF unit[1] by lifting it up while pushing the claw[2] MF4750/MF4730) Caution: ■ Preparation Be sure to avoid damaging the bottom sheet when placing the removed SADF unit. 1) Remove the left cover.
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Disassembly/Assembly > Document Exposure/Feeder System > Removing the SADF Pickup Unit (MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-96 3)Remove the SADF front cover[1]. 4)Free the boss[1], and open the SADF upper cover[2] by the amount for which the boss is • 2 claws[2] freed.
Disassembly/Assembly > Document Exposure/Feeder System > Removing the SADF Motor Unit (MF4780w/MF4770n/MF4750/MF4730 > Procedure 4-97 Removing the SADF Motor Unit (MF4780w/MF4770n/ MF4750/MF4730 ■ Preparation 1) Remove the left cover. 2)Remove the SADF unit and reader unit 3)Remove the SADF unit. ■...
Disassembly/Assembly > Document Exposure/Feeder System > Removing the SADF Pickup Roller 1,2 (MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-98 Removing the SADF Pickup Roller 1,2 (MF4780w/ 3)Remove the tube[1] protecting the harness. MF4770n/MF4750/MF4730) • 2 harnesses bands[2] ■ Preparation 1) Remove the left cover. 2)Remove the SADF unit and reader unit 3)Remove the SADF unit.
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Disassembly/Assembly > Document Exposure/Feeder System > Removing the SADF Pickup Roller 1,2 (MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-99 2)Remove the SADF upper cover[1]. 4)Remove the pickup roller unit[1]. 2 shafts[2] F-4-239 5)Remove the spring[1] on the back side of the pickup roller unit. F-4-238 3)Remove the gear[1],bushing[2],2 e-rings[3] and bushing[4] Caution:...
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Disassembly/Assembly > Document Exposure/Feeder System > Removing the SADF Pickup Roller 1,2 (MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-100 6)Remove the bushing[1],pin[2] and 2 e-rings[3]. 8)Remove the pickup roller unit 2[1]. • 1 pickup roller shaft2[2] • 1 pickup roller 2[3] • 1 bushing[4] •...
Disassembly/Assembly > Document Exposure/Feeder System > Removing the SADF Separation Pad(MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-101 Removing the SADF Separation Pad(MF4780w/ 2)Remove the separation pad unit[1]. • 2 claws[2] MF4770n/MF4750/MF4730) • 2 protrusions[3] ■ Preparation Caution. 1) Remove the left cover. Be sure to hold the separation pad unit with your fingers when releasing its 2 2)Remove the SADF unit and reader unit protrusions[3] 3)Remove the SADF unit.
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Disassembly/Assembly > Document Exposure/Feeder System > Removing the SADF Separation Pad(MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-102 3)Remove the separation pad[1]. • 2 hooks[2] Caution. When the spring[1] comes off, go through the following steps to install it. Caution. 1)Install the spring[1] to the boss[2] on the back side of the separation pad. Do not touch the pad surface[1] When disassembling/assembling, take care not to lose the spring[2] on the back side of the separation pad.
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Disassembly/Assembly > Document Exposure/Feeder System > Removing the SADF Separation Pad(MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-103 3)Install the spring to the protrusion[1] of the SADF pickup upper cover. 5)Turn the SADF pickup upper cover over to the front, and push in the separation pad unit[1].
Disassembly/Assembly > Document Exposure/Feeder System > Removing the Copyboard Glass(MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-104 Removing the Copyboard Glass(MF4780w/MF4770n/ 3)Remove the reader upper cover[1] • 6 claws[2] MF4750/MF4730) • 1 hook[3] ■ Preparation 1) Remove the left cover. 2)Remove the SADF unit and reader unit 3)Remove the SADF unit.
Disassembly/Assembly > Document Exposure/Feeder System > Removing the Flatbed Motor Unit(MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-105 Removing the Flatbed Motor Unit(MF4780w/MF4770n/ MF4750/MF4730) ■ Preparation 1) Remove the left cover. 2)Remove the SADF unit and reader unit 3)Remove the SADF unit. 4)Remove the copyboard glass ■...
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Disassembly/Assembly > Document Exposure/Feeder System > Removing the Flatbed Motor Unit(MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-106 1)Move the CIS unit[1]. 3)Remove the guide cover[1] F-4-252 F-4-251 2)Move the gear[1], and remove the belt[2] from the gear[3] Caution. Grease is applied on the shaft[1] of the contact sensor, so be careful not to let the belt[2] come in contact with the shaft.
Disassembly/Assembly > Document Exposure/Feeder System > Removing the SADF CIS Unit(MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-107 Removing the SADF CIS Unit(MF4780w/MF4770n/ 5)Remove the flatbed motor unit[1] • 2 screws[2] MF4750/MF4730) ■ Procedure 1)Remove the left cover. 2)Remove the SADF unit and reader unit 3)Remove the SADF unit.
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Disassembly/Assembly > Document Exposure/Feeder System > Removing the SADF CIS Unit(MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-108 1)Move the CIS unit[1] 3)Remove the CIS unit[1] • 2 shafts[2] F-4-256 F-4-258 2)Remove 2 spacers[1] and flat cable[2]. • 1 guide[A] Caution. If the CIS unit comes off, be sure to align the tooth[1] on the belt with the tooth[2] on the bottom of the CIS unit to install the unit.
Disassembly/Assembly > Document Exposure/Feeder System > Removing the Copyboard Cover and Reader Unit (MF4720w/MF4712/MF4710) > Procedure 4-109 Removing the Copyboard Cover (MF4720w/MF4712/ Removing the Copyboard Cover and Reader Unit MF4710) (MF4720w/MF4712/MF4710) ■ Procedure ■ Preparation 1) Remove the copyboard cover[1] 1) Remove the left cover.
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Disassembly/Assembly > Document Exposure/Feeder System > Removing the Copyboard Cover and Reader Unit (MF4720w/MF4712/MF4710) > Procedure 4-110 4)Remove the copyboard cover and reader unit. • 2 claws[2] Caution: When mounting the reader unit and copyboard cover, fix the 2 hinge arm claws [1] to the 2 latches [2] of the reader unit.
Disassembly/Assembly > Document Exposure/Feeder System > Removing the Copyboard Glass(MF4720w/MF4712/MF4710) > Procedure 4-111 Removing the Copyboard Glass(MF4720w/MF4712/ 3)Remove the copyboard glass[1]. MF4710) Caution. ■ Preparation Place the detached copyboard glass cover on a cloth etc. to avoid damaging the 1)Remove the copyboard cover. bottom sheet.
Disassembly/Assembly > Document Exposure/Feeder System > Removing the Flatbed Motor Unit(MF4720w/MF4712/MF4710) > Procedure 4-112 Removing the Flatbed Motor Unit(MF4720w/MF4712/ 1)Move the CIS unit[1]. MF4710) ■ Preparation 1) Remove the left cover. 2)Remove the copyboard cover . 3)Remove the copyboard cover. 4)Remove the control panel.
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Disassembly/Assembly > Document Exposure/Feeder System > Removing the Flatbed Motor Unit(MF4720w/MF4712/MF4710) > Procedure 4-113 5)Remove the flatbed motor unit[1] • 2 screws[2] F-4-267 3)Remove the guide cover[1] F-4-270 F-4-268 4)Free the harness[1] and the grounding wire[2] from the hole[A] of the reader unit and the harness guide[B] F-4-269 4-113...
Disassembly/Assembly > Document Exposure/Feeder System > Removing the CIS Unit (MF4720/MF4712/MF4710) > Procedure 4-114 Removing the CIS Unit (MF4720/MF4712/MF4710) ■ Procedure 1)Move the CIS unit[1] ■ Preparation 1) Remove the copyboard cover. 2)Remove the control panel unit. 3)Remove the copyboard glass Caution.
Disassembly/Assembly > Document Exposure/Feeder System > Removing the DADF Unit and Reader Unit (L418S/L410/L190) > Procedure 4-115 Removing the DADF Unit and Reader Unit (L418S/ 3)Remove the CIS unit[1] • 2 shafts[2] L410/L190) ■ Preparation 1) Remove the left cover. ■...
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Disassembly/Assembly > Document Exposure/Feeder System > Removing the DADF Unit and Reader Unit (L418S/L410/L190) > Procedure 4-116 Caution: When installing the DADF unit and reader unit, secure the 2 hinge arm claws[1] to the 2 hooks[2] of the reader unit. F-4-275 4)Remove the DADF unit and reader unit.
Disassembly/Assembly > Document Exposure/Feeder System > Removing the DADF Unit (L418S/L410/L190) > Procedure 4-117 Removing the DADF Unit (L418S/L410/L190) Caution: ■ Preparation Be sure to hold the connector cover when removing it. 1) Remove the left cover. 2)Remove the DADF unit and reader unit ■...
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Disassembly/Assembly > Document Exposure/Feeder System > Removing the DADF Unit (L418S/L410/L190) > Procedure 4-118 3)Remove the DADF unit[1] by lift it up and then raising it vertically. Caution: Before installing the connector cover, be sure to store the harness, grounding wire, and flat cable in the [A] part.
Disassembly/Assembly > Document Exposure/Feeder System > Removing the DADF Pickup Unit (L418S/L410/L190) > Procedure 4-119 Removing the DADF Pickup Unit (L418S/L410/L190) ■ Preparation 1) Remove the left cover. 2)Remove the DADF unit and reader unit 3)Remove the DADF unit. ■ Procedure 1) Open the DADF pickup tray and DADF upper cover.
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Disassembly/Assembly > Document Exposure/Feeder System > Removing the DADF Pickup Unit (L418S/L410/L190) > Procedure 4-120 3)Open the DADF tray[1] until it stops. Then release the claw by pushing the hook[2] in the 5)Remove the DADF upper rear cover[1]. direction of the arrow[A] with a flat-blade screwdriver, and move the tray in the direction of •...
Disassembly/Assembly > Document Exposure/Feeder System > Removing the DADF Motor Unit (L418S/L410/L190) > Procedure 4-121 Removing the DADF Motor Unit (L418S/L410/L190) 7)Remove the DADF unit communication cable[1] from the harness guide[A]. ■ Preparation 1) Remove the left cover. 2)Remove the DADF unit and reader unit 3)Remove the DADF unit.
Disassembly/Assembly > Document Exposure/Feeder System > Removing the DADF Solenoid Unit (L418S/L410/L190) > Procedure 4-122 Removing the DADF Solenoid Unit (L418S/L410/L190) ■ Preparation 1) Remove the left cover. 2)Remove the DADF unit and reader unit 3)Remove the DADF unit. 4)Remove the DADF pickup unit. 5)Remove the DADF motor unit.
Disassembly/Assembly > Document Exposure/Feeder System > Removing the DADF Pickup Roller Unit (L418S/L410/L190) > Procedure 4-123 Removing the DADF Pickup Roller Unit (L418S/L410/ Caution: L190) When assembling the DADF solenoid unit, be sure to put the solenoid shaft [1] ■ Preparation through the hole [A] on the solenoid arm.
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Disassembly/Assembly > Document Exposure/Feeder System > Removing the DADF Pickup Roller Unit (L418S/L410/L190) > Procedure 4-124 4)Remove the bushing[1],pin[2] and 2 e-rings[3] Caution: When disassembling/assembling, take care not to lose the plate spring[1] and gear[2] F-4-292 2)Remove the DADF pickup roller unit. F-4-293 3)Remove the spring[1] on the back side of the pickup roller unit.
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Disassembly/Assembly > Document Exposure/Feeder System > Removing the DADF Pickup Roller Unit (L418S/L410/L190) > Procedure 4-125 5)Pull out pickup roller shaft[1], and remove the pickup roller[2], bushing[A], bushing[B], and 6)Remove the pickup roller unit[1] gear[3]. • pickup roller shaft[2] • pickup roller 2[3] •...
Disassembly/Assembly > Document Exposure/Feeder System > Removing the DADF Separation Pad (L418S/L410/L190) > Procedure 4-126 Removing the DADF Separation Pad (L418S/L410/ 2)Remove the separation pad unit[1]. • 2 claws[2] L190) • 2 protrusions[3] ■ Preparation Caution. 1) Remove the left cover. Be sure to hold the separation pad unit with your fingers when releasing its 2 2)Remove the DADF unit and reader unit protrusions[3]...
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Disassembly/Assembly > Document Exposure/Feeder System > Removing the DADF Separation Pad (L418S/L410/L190) > Procedure 4-127 3)Remove the separation pad[1]. • 2 hooks[2] Caution. When the spring[1] comes off, go through the following steps to install it. Caution. 1)Install the spring[1] to the boss[2] on the back side of the separation pad. Do not touch the pad surface[1] When disassembling/assembling, take care not to lose the spring[2] on the back side of the separation pad.
Disassembly/Assembly > Document Exposure/Feeder System > Removing the Copyboard Glass (L418S/L410/L190) > Procedure 4-128 Removing the Copyboard Glass (L418S/L410/L190) 3)Install the spring to the protrusion[1] of the DADF pickup upper cover. ■ Preparation 1) Remove the left cover. 2)Remove the DADF unit and reader unit 3)Remove the DADF unit.
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Disassembly/Assembly > Document Exposure/Feeder System > Removing the Copyboard Glass (L418S/L410/L190) > Procedure 4-129 3)Remove the reader upper cover[1] • 6 claws[2] • 1 hook[3] F-4-304 F-4-303 Caution. Place the detached copyboard glass cover on a cloth etc. to avoid damaging the bottom sheet.
Disassembly/Assembly > Document Exposure/Feeder System > Removing the Flatbed Motor Unit (L418S/L410/L190) > Procedure 4-130 Removing the Flatbed Motor Unit (L418S/L410/L190) ■ Preparation 1) Remove the left cover. 2)Remove the DADF unit and reader unit 3)Remove the DADF unit. 4)Remove the copyboard glass ■...
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Disassembly/Assembly > Document Exposure/Feeder System > Removing the Flatbed Motor Unit (L418S/L410/L190) > Procedure 4-131 5)Remove the flatbed motor unit[1] • 2 screws[2] F-4-306 3)Remove the guide cover[1] F-4-309 F-4-307 4)Free the harness[1] and the grounding wire[2] from the hole[A] of the reader unit and the harness guide[B] F-4-308 4-131...
Disassembly/Assembly > Document Exposure/Feeder System > Removing the DADF CIS Unit (L418S/L410/L190) > Procedure 4-132 Removing the DADF CIS Unit (L418S/L410/L190) 1)Move the CIS unit[1] ■ Preparation 1) Remove the left cover. 2)Remove the DADF unit and reader unit 3)Remove the DADF unit. 4)Remove the copyboard glass Caution.
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Disassembly/Assembly > Document Exposure/Feeder System > Removing the DADF CIS Unit (L418S/L410/L190) > Procedure 4-133 3)Remove the CIS unit[1] • 2 shafts[2] F-4-312 Caution. If the CIS unit comes off, be sure to align the tooth[1] on the belt with the tooth[2] on the bottom of the CIS unit to install the unit.
Disassembly/Assembly > Controller System > Removing the Control Panel Unit (MF4890dw/MF4880dw) > Procedure 4-134 Controller System 3) Remove the control panel unit[1] • 4 claws[2] Removing the Control Panel Unit (MF4890dw/ • 1 flat cable[3] MF4880dw) ■ Procedure 1)Open the reader unit [1] and remove the control panel support plate[2] •...
Disassembly/Assembly > Controller System > Removing the Drive Belt (MF4890dw/MF4880dw) > Procedure 4-135 Removing the Drive Belt (MF4890dw/MF4880dw) ■ Preparation 1) Remove the left cover ■ Procedure 1) Close the reader unit [1] and place the host machine with its left side down. Caution: Be sure to hold the reader unit firmly when turning the machine with its left side down because the reader unit will be forced open by hinge spring pressure.
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Disassembly/Assembly > Controller System > Removing the Drive Belt (MF4890dw/MF4880dw) > Procedure 4-136 4)Remove the fixing transmission gear[1] and the cartridge transmission gear[2] Caution: When assembling the drive gear, install the cartridge arm [1] according to the position shown in the left picture. F-4-318 5)Remove the drive belt.
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Disassembly/Assembly > Controller System > Removing the Drive Belt (MF4890dw/MF4880dw) > Procedure 4-137 Caution: Assemble the drive gear in the order shown in the below picture. Caution: Align the drive cover [2] with the 14 shaft holes [1] to mount it. F-4-321 [1] Primary deceleration pulley [6] Gear coupling F-4-322...
Disassembly/Assembly > Controller System > Removing the Main Motor (MF4890dw/MF4880dw) > Procedure 4-138 Removing the Main Motor (MF4890dw/MF4880dw) Caution: ■ Preparation When mounting the scanner cover, pass the shutter open/close lever [1] through the 1) Remove the left cover hole [A] in the scanner cover. 2)Remove the DADF unit and reader unit.
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Disassembly/Assembly > Controller System > Removing the Main Motor (MF4890dw/MF4880dw) > Procedure 4-139 2)Disconnect the connectors[1], and remove the motor driver PCB[2] 4)Free the motor harness[1] from the harness guide[C]. • 2 claws[3] 5)Remove the motor guide[2] • 1 hook[4] •...
Disassembly/Assembly > Controller System > Removing the Main Fan (MF4890dw/MF4880dw) > Procedure 4-140 Removing the Main Fan (MF4890dw/MF4880dw) 7)Remove the main motor[1] 2 screws(with washer)[2] ■ Preparation 1) Remove the left cover 2)Remove the DADF unit and reader unit. 3)Remove the right cover 4)Remove the front cover unit.
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Disassembly/Assembly > Controller System > Removing the Main Fan (MF4890dw/MF4880dw) > Procedure 4-141 2)Free the fan harness[1] from the harness guide[A], and put it through the hole[B] of the right side plate to the outside. Caution: • 1 connector[2] When mounting the scanner cover, pass the shutter open/close lever [1] through the hole [A] in the scanner cover F-4-335 3)Free the harness from the guide[A], and remove the main fan[1].
Disassembly/Assembly > Controller System > Removing the Engine Controller PCB(MF4890dw/MF4880dw) > Procedure 4-142 Removing the Engine Controller PCB(MF4890dw/ Caution: MF4880dw) When mounting the main fan, attach the harness [2] to the upper-right side of the fan with the fan label [1] facing inwards. ■...
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Disassembly/Assembly > Controller System > Removing the Engine Controller PCB(MF4890dw/MF4880dw) > Procedure 4-143 2)Disconnect the terminal[1], free the harness[2] from the harness guide[A], and then put it 3)Remove the harness spring[1] from the hook[2], and free the harness[3] from the guide[A]. through the hole[B].
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Disassembly/Assembly > Controller System > Removing the Engine Controller PCB(MF4890dw/MF4880dw) > Procedure 4-144 5)Remove the engine controller PCB[1]. Caution: • 2 screws(with washers)[2] When reassembling, attach the engine controller PCB to the hook [1] and then • 1 screw(with tooth lock washer)[3] mount the switchboard [3] to the lower side of the switch arm [2].
Disassembly/Assembly > Controller System > Removing the FAX NCU PCB(MF4890dw/MF4880dw) > Procedure 4-145 Removing the Main Controller PCB(MF4890dw/ Removing the FAX NCU PCB(MF4890dw/MF4880dw) MF4880dw) ■ Preparation ■ Preparation 1) Remove the left cover 1) Remove the left cover ■ Procedure ■...
Disassembly/Assembly > Controller System > Removing the Paper Leading Edge Sensor PCB(MF4890dw/MF4880dw) > Procedure 4-146 Removing the Wireless LAN PCB(MF4890dw/MF4880dw) Removing the Paper Leading Edge Sensor PCB(MF4890dw/MF4880dw) ■ Preparation ■ Preparation 1) Remove the left cover 1) Remove the left cover ■...
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Disassembly/Assembly > Controller System > Removing the Paper Leading Edge Sensor PCB(MF4890dw/MF4880dw) > Procedure 4-147 2)Disconnect the terminal[1], free the harness[2] from the harness guide[A], and then put it 3)Remove the harness spring[1] from the hook[2], and free the harness[3] from the guide[A]. through the hole[B].
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Disassembly/Assembly > Controller System > Removing the Paper Leading Edge Sensor PCB(MF4890dw/MF4880dw) > Procedure 4-148 5)Remove the harness[1] from the guide[A] and [B]. Note: The below picture shows how to wind the harness. F-4-354 6)Remove the paper leading edge sensor PCB[1] •...
Disassembly/Assembly > Controller System > Removing the Fixing Delivery/Paper Width Sensor PCB(MF4890dw/MF4880dw) > Procedure 4-149 Removing the Fixing Delivery/Paper Width Sensor 2)Disconnect the terminal[1], free the harness[2] from the harness guide[A], and then put it through the hole[B]. PCB(MF4890dw/MF4880dw) ■ Preparation 1) Remove the left cover 2)Remove the DADF unit and reader unit.
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Disassembly/Assembly > Controller System > Removing the Fixing Delivery/Paper Width Sensor PCB(MF4890dw/MF4880dw) > Procedure 4-150 3)Remove the harness spring[1] from the hook[2], and free the harness[3] from the guide[A]. 5)Remove the harness[1] from the guide[A] and [B]. F-4-360 F-4-362 6)Remove the fixing delivery/paper width sensor PCB[1] Remove the harness retaining spring [1] and 4 connectors [2].
Disassembly/Assembly > Controller System > Removing the Toner Sensor and Multi Pickup Sensor Unit (MF4890dw/MF4880dw) > Procedure 4-151 Removing the Toner Sensor and Multi Pickup Sensor Unit (MF4890dw/MF4880dw) Note: The below picture shows how to wind the harness. ■ Preparation 1) Remove the left cover 2)Remove the DADF unit and reader unit.
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Disassembly/Assembly > Controller System > Removing the Toner Sensor and Multi Pickup Sensor Unit (MF4890dw/MF4880dw) > Procedure 4-152 2)Disconnect the 2 connectors[1], and put it through the hole[A] of the left side plate to the inside. Caution: When mounting the scanner cover, pass the shutter open/close lever [1] through the hole [A] in the scanner cover.
Disassembly/Assembly > Controller System > Removing the Speaker (MF4890dw/MF4880dw) > Procedure 4-153 Removing the Speaker (MF4890dw/MF4880dw) 4)Remove the toner sensor/multi pickup sensor unit. • 1 wire saddle[2] ■ Preparation • 1 claw[3] • 2 hooks[4] 1) Remove the left cover 2)Remove the right cover 3)Remove the front cover unit ■...
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Disassembly/Assembly > Controller System > Removing the Speaker (MF4890dw/MF4880dw) > Procedure 4-154 2)Free the speaker harness[1] from the harness guide[A], and put it thriugh the hole[B] of the right side plate to the outside. Caution: When mounting the speaker, attach the harness [1] to the upper side of the speaker. (So that the speaker harness connector can reach the main controller.) F-4-372 3)Remove the speaker[1].
Disassembly/Assembly > Controller System > Removing the Control Panel Unit (MF4870dn/MF4830d) > Procedure 4-155 Removing the Control Panel Unit (MF4870dn/ 3) Remove the control panel unit[1] MF4830d) • 4 claws[2] • 1 flat cable[3] ■ Procedure 1)Open the reader unit [1] and remove the control panel support plate[2] •...
Disassembly/Assembly > Controller System > Removing the Drive Belt (MF4870dn/MF4830d) > Procedure 4-156 Removing the Drive Belt (MF4870dn/MF4830d) ■ Preparation 1) Remove the left cover ■ Procedure 1) Close the reader unit [1] and place the host machine with its left side down. Caution: Be sure to hold the reader unit firmly when turning the machine with its left side down because the reader unit will be forced open by hinge spring pressure.
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Disassembly/Assembly > Controller System > Removing the Drive Belt (MF4870dn/MF4830d) > Procedure 4-157 F-4-382 Caution: When assembling the drive gear, install the cartridge arm [1] according to the position shown in the left picture. F-4-380 4)Remove the fixing transmission gear[1] and the cartridge transmission gear[2] F-4-383 F-4-381 5)Remove the drive belt.
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Disassembly/Assembly > Controller System > Removing the Drive Belt (MF4870dn/MF4830d) > Procedure 4-158 Caution: Caution: Assemble the drive gear in the order shown in the below picture. Align the drive cover [2] with the 14 shaft holes [1] to mount it. F-4-384 F-4-385 [1] Primary deceleration pulley [6] Gear coupling...
Disassembly/Assembly > Controller System > Removing the Main Motor (MF4870dn/MF4830d) > Procedure 4-159 Caution: Removing the Main Motor (MF4870dn/MF4830d) When mounting the scanner cover, pass the shutter open/close lever [1] through the ■ Preparation hole [A] in the scanner cover. 1) Remove the left cover 2)Remove the SADF unit and reader unit.
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Disassembly/Assembly > Controller System > Removing the Main Motor (MF4870dn/MF4830d) > Procedure 4-160 2)Disconnect the connectors[1], and remove the motor driver PCB[2] 4)Free the motor harness[1] from the harness guide[C]. • 2 claws[3] 5)Remove the motor guide[2] • 1 hook[4] •...
Disassembly/Assembly > Controller System > Removing the Main Fan (MF4870dn/MF4830d) > Procedure 4-161 Removing the Main Fan (MF4870dn/MF4830d) 7)Remove the main motor[1] 2 screws(with washer)[2] ■ Preparation 1) Remove the left cover 2)Remove the SADF unit and reader unit. 3)Remove the right cover 4)Remove the front cover unit.
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Disassembly/Assembly > Controller System > Removing the Main Fan (MF4870dn/MF4830d) > Procedure 4-162 2)Free the fan harness[1] from the harness guide[A], and put it through the hole[B] of the right side plate to the outside. Caution: • 1 connector[2] When mounting the scanner cover, pass the shutter open/close lever [1] through the hole [A] in the scanner cover F-4-398 3)Free the harness from the guide[A], and remove the main fan[1].
Disassembly/Assembly > Controller System > Removing the Engine Controller PCB (MF4870dn/MF4830d) > Procedure 4-163 Removing the Engine Controller PCB (MF4870dn/ Caution: MF4830d) When mounting the main fan, attach the harness [2] to the upper-right side of the fan with the fan label [1] facing inwards. ■...
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Disassembly/Assembly > Controller System > Removing the Engine Controller PCB (MF4870dn/MF4830d) > Procedure 4-164 Caution: When connecting the terminal[1], be sure that the contact spring[2] is in contact with F-4-402 2)Disconnect the terminal[1], free the harness[2] from the harness guide[A], and then put it through the hole[B].
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Disassembly/Assembly > Controller System > Removing the Engine Controller PCB (MF4870dn/MF4830d) > Procedure 4-165 4)Remove the harness retaining spring[1], and free the harness from the guide[A]. • 2 flat cables[2] Caution: • 6 connectors[3] When reassembling, attach the engine controller PCB to the hook [1] and then mount the switchboard [3] to the lower side of the switch arm [2].
Disassembly/Assembly > Controller System > Removing the FAX NCU PCB (MF4870dn) > Procedure 4-166 Removing the Main Controller PCB (MF4870dn/ Removing the FAX NCU PCB (MF4870dn) MF4830d) ■ Preparation ■ Preparation 1) Remove the left cover 1) Remove the left cover ■...
Disassembly/Assembly > Controller System > Removing the Paper Leading Edge Sensor PCB(MF4870dn/MF4830d) > Procedure 4-167 Removing the Paper Leading Edge Sensor PCB(MF4870dn/MF4830d) ■ Preparation 1) Remove the left cover 2)Remove the SADF unit and reader unit. 3)Remove the right cover 4)Remove the front cover unit.
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Disassembly/Assembly > Controller System > Removing the Paper Leading Edge Sensor PCB(MF4870dn/MF4830d) > Procedure 4-168 Caution: When connecting the terminal[1], be sure that the contact spring[2] is in contact with F-4-417 5)Remove the harness[1] from the guide[A] and [B]. F-4-415 3)Remove the harness spring[1] from the hook[2], and free the harness[3] from the guide[A].
Disassembly/Assembly > Controller System > Removing the Fixing Delivery/Paper Width Sensor PCB(MF4870dn/MF4830d) > Procedure 4-169 Removing the Fixing Delivery/Paper Width Sensor 6)Remove the paper leading edge sensor PCB[1] • 2 claws[2] PCB(MF4870dn/MF4830d) ■ Preparation 1) Remove the left cover 2)Remove the SADF unit and reader unit. 3)Remove the right cover 4)Remove the front cover unit.
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Disassembly/Assembly > Controller System > Removing the Fixing Delivery/Paper Width Sensor PCB(MF4870dn/MF4830d) > Procedure 4-170 (MF4870dn) 1)Remove the main controller mounting plate[1] Caution: • 4 screws(with washer)[2] When connecting the terminal[1], be sure that the contact spring[2] is in contact with •...
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Disassembly/Assembly > Controller System > Removing the Fixing Delivery/Paper Width Sensor PCB(MF4870dn/MF4830d) > Procedure 4-171 4)Remove the harness retaining spring[1] and 4 connectors[2] 6)Remove the fixing delivery/paper width sensor PCB[1] • 1 connector • 2 claws[3] F-4-426 5)Remove the harness[1] from the guide[A] and [B]. F-4-428 Note: The below picture shows how to wind the harness.it.
Disassembly/Assembly > Controller System > Removing the Toner Sensor and Multi Pickup Sensor Unit (MF4870dn) > Procedure 4-172 Removing the Toner Sensor and Multi Pickup Sensor Caution: Unit (MF4870dn) When mounting the scanner cover, pass the shutter open/close lever [1] through the ■...
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Disassembly/Assembly > Controller System > Removing the Toner Sensor and Multi Pickup Sensor Unit (MF4870dn) > Procedure 4-173 2)Disconnect the 2 connectors[1], and put it through the hole[A] of the left side plate to the 4)Remove the toner sensor/multi pickup sensor unit. inside.
Disassembly/Assembly > Controller System > Removing the Speaker (MF4870dn) > Procedure 4-174 Removing the Speaker (MF4870dn) 2)Free the speaker harness[1] from the harness guide[A], and put it through the hole[B] of the right side plate to the outside. ■ Preparation 1) Remove the left cover 2)Remove the right cover 3)Remove the front cover unit...
Disassembly/Assembly > Controller System > Removing the Control Panel Unit (MF4820d) > Procedure 4-175 Removing the Control Panel Unit (MF4820d) Caution: ■ Procedure When mounting the speaker, attach the harness [1] to the upper side of the speaker. (So that the speaker harness connector can reach the main controller.) 1)Open the reader unit and remove the control panel support plate.
Disassembly/Assembly > Controller System > Removing the Drive Belt (MF4820d) > Procedure 4-176 Removing the Drive Belt (MF4820d) 2)Remove the tension unit[1]. • 1 screw[2] ■ Preparation 1) Remove the left cover ■ Procedure 1) Close the reader unit [1] and place the host machine with its left side down. Caution: Be sure to hold the reader unit firmly when turning the machine with its left side down because the reader unit will be forced open by hinge spring pressure.
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Disassembly/Assembly > Controller System > Removing the Drive Belt (MF4820d) > Procedure 4-177 5)Remove the drive belt. F-4-445 Caution: F-4-443 When assembling the drive gear, install the cartridge arm [1] according to the position 4)Remove the fixing transmission gear[1] and the cartridge transmission gear[2] shown in the left picture.
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Disassembly/Assembly > Controller System > Removing the Drive Belt (MF4820d) > Procedure 4-178 Caution: Caution: Assemble the drive gear in the order shown in the below picture. Align the drive cover [2] with the 14 shaft holes [1] to mount it. F-4-447 F-4-448 [1] Primary deceleration pulley [6] Gear coupling...
Disassembly/Assembly > Controller System > Removing the Main Motor (MF4820d) > Procedure 4-179 Removing the Main Motor (MF4820d) Caution: ■ Preparation When mounting the scanner cover, pass the shutter open/close lever [1] through the 1) Remove the left cover hole [A] in the scanner cover. 2)Remove the copyboadr cover and reader unit.
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Disassembly/Assembly > Controller System > Removing the Main Motor (MF4820d) > Procedure 4-180 2)Disconnect the connectors[1], and remove the motor driver PCB[2] 4)Free the motor harness[1] from the harness guide[C]. • 2 claws[3] 5)Remove the motor guide[2] • 1 hook[4] •...
Disassembly/Assembly > Controller System > Removing the Engine Controller PCB(MF4820d) > Procedure 4-181 Removing the Engine Controller PCB(MF4820d) 7)Remove the main motor[1] 2 screws(with washer)[2] ■ Preparation 1) Remove the left cover 2)Remove the copyboard cover and reader unit. 3)Remove the right cover 4)Remove the front cover unit.
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Disassembly/Assembly > Controller System > Removing the Engine Controller PCB(MF4820d) > Procedure 4-182 2)Disconnect the terminal[1], free the harness[2] from the harness guide[A], and then put it 3)Remove the harness spring[1] from the hook[2], and free the harness[3] from the guide[A]. through the hole[B].
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Disassembly/Assembly > Controller System > Removing the Engine Controller PCB(MF4820d) > Procedure 4-183 5)Remove the engine controller PCB[1]. Caution: • 2 screws(with washers)[2] When reassembling, attach the engine controller PCB to the hook [1] and then • 1 screw(with tooth lock washer)[3] mount the switchboard [3] to the lower side of the switch arm [2].
Disassembly/Assembly > Controller System > Removing the Paper Leading Edge Sensor PCB(MF4820d) > Procedure 4-184 Removing the Main Controller PCB(MF4820d) Removing the Paper Leading Edge Sensor PCB(MF4820d) ■ Preparation ■ Preparation 1) Remove the left cover 1) Remove the left cover ■...
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Disassembly/Assembly > Controller System > Removing the Paper Leading Edge Sensor PCB(MF4820d) > Procedure 4-185 2)Disconnect the terminal[1], free the harness[2] from the harness guide[A], and then put it 3)Remove the harness spring[1] from the hook[2], and free the harness[3] from the guide[A]. through the hole[B].
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Disassembly/Assembly > Controller System > Removing the Paper Leading Edge Sensor PCB(MF4820d) > Procedure 4-186 5)Remove the harness[1] from the guide[A] and [B]. Note: The below picture shows how to wind the harness. F-4-472 6)Remove the paper leading edge sensor PCB[1] •...
Disassembly/Assembly > Controller System > Removing the Fixing Delivery/Paper Width Sensor PCB(MF4820d) > Procedure 4-187 Removing the Fixing Delivery/Paper Width Sensor 2)Disconnect the terminal[1], free the harness[2] from the harness guide[A], and then put it through the hole[B]. PCB(MF4820d) ■ Preparation 1) Remove the left cover 2)Remove the copyboard cover and reader unit.
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Disassembly/Assembly > Controller System > Removing the Fixing Delivery/Paper Width Sensor PCB(MF4820d) > Procedure 4-188 3)Remove the harness spring[1] from the hook[2], and free the harness[3] from the guide[A]. 5)Remove the harness[1] from the guide[A] and [B]. F-4-478 F-4-480 6)Remove the fixing delivery/paper width sensor PCB[1] Remove the harness retaining spring [1] and 4 connectors [2].
Disassembly/Assembly > Controller System > Removing the Toner Sensor and Multi Pickup Sensor Unit (MF4820d) > Procedure 4-189 Removing the Toner Sensor and Multi Pickup Sensor Unit (MF4820d) Note: The below picture shows how to wind the harness. ■ Preparation 1) Remove the left cover 2)Remove the copyboard cover and reader unit.
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Disassembly/Assembly > Controller System > Removing the Toner Sensor and Multi Pickup Sensor Unit (MF4820d) > Procedure 4-190 2)Disconnect the 2 connectors[1], and put it through the hole[A] of the left side plate to the inside. Caution: When mounting the scanner cover, pass the shutter open/close lever [1] through the hole [A] in the scanner cover.
Disassembly/Assembly > Controller System > Removing the Control Panel Unit (D530) > Procedure 4-191 Removing the Control Panel Unit (D530) 4)Remove the toner sensor/multi pickup sensor unit. • 1 wire saddle[2] ■ Procedure • 1 claw[3] • 2 hooks[4] 1)Remove the copyboard cover. ■...
Disassembly/Assembly > Controller System > Removing the Drive Belt (D530) > Procedure 4-192 Removing the Drive Belt (D530) 2) Remove the 2 claws[1] ■ Preparation 1) Remove the left cover ■ Procedure 1) Close the reader unit [1] and place the host machine with its left side down. Caution: Be sure to hold the reader unit firmly when turning the machine with its left side down because the reader unit will be forced open by hinge spring pressure.
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Disassembly/Assembly > Controller System > Removing the Drive Belt (D530) > Procedure 4-193 4)Remove the fixing transmission gear[1] and the cartridge transmission gear[2] F-4-493 3)Remove the shaft support[1], and remove the drive cover[2] • 5 screws[3] F-4-495 5)Remove the drive belt. Caution: Be sure to raise the drive cover[2] straight above slowly to prevent the gear phase from becoming displaced.
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Disassembly/Assembly > Controller System > Removing the Drive Belt (D530) > Procedure 4-194 Caution: Caution: Assemble the drive gear in the order shown in the below picture. When assembling the drive gear, install the cartridge arm [1] according to the position shown in the left picture.
Disassembly/Assembly > Controller System > Removing the Main Motor (D530) > Procedure 4-195 Removing the Main Motor (D530) ■ Preparation Caution: Align the drive cover [2] with the 14 shaft holes [1] to mount it. 1) Remove the left cover 2)Remove the copyboard cover and reader unit.
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Disassembly/Assembly > Controller System > Removing the Main Motor (D530) > Procedure 4-196 2)Remove the scanner cover[1] • 2 screws(black TP)[2] Caution: When install the scanner cover, be careful not to damage the motor driver PCB[1] Caution: and the duplex relay PCB[2] When removing the scanner cover, be sure that the cover does not get under[A] part of the right side plate.
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Disassembly/Assembly > Controller System > Removing the Main Motor (D530) > Procedure 4-197 4)Free the harness from the harness guide[A] and [B], and remove the duplex relay PCB[1] • 1 claw[2] Caution: • 1 hook[3] Ensure that the shutter open/close lever [1] can move vertically. F-4-506 5)Free the motor harness[1] from the harness guide[C].
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Disassembly/Assembly > Controller System > Removing the Main Motor (D530) > Procedure 4-198 7)Lower the tension unit[1], and remove the belt[2]. Caution: When installing the main motor, be sure to install the harness[1] to the upper side of the motor. F-4-508 8)Remove the main motor[1] •...
Disassembly/Assembly > Controller System > Removing the Main Fan (D530) > Procedure 4-199 Removing the Main Fan (D530) 2)Remove the scanner cover[1] • 2 screws(black TP)[2] ■ Preparation Caution: 1) Remove the left cover When removing the scanner cover, be sure that the cover does not get under[A] part 2)Remove the copyboard cover and reader unit.
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Disassembly/Assembly > Controller System > Removing the Main Fan (D530) > Procedure 4-200 Caution: Caution: Ensure that the shutter open/close lever [1] can move vertically. When install the scanner cover, be careful not to damage the motor driver PCB[1] and the duplex relay PCB[2] F-4-513 F-4-511 3)Free the fan harness[1] from the harness guide[A], and put it through the hole[B] of the right...
Disassembly/Assembly > Controller System > Removing the Engine Controller PCB(D530) > Procedure 4-201 Removing the Engine Controller PCB(D530) 4)Free the harness from the guide[A], and remove the main fan[1]. • 2 claws[2] ■ Preparation 1) Remove the left cover 2)Remove the copyboard cover and reader unit. 3)Remove the right cover 4)Remove the front cover unit.
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Disassembly/Assembly > Controller System > Removing the Engine Controller PCB(D530) > Procedure 4-202 2)Disconnect the terminal[1], free the harness[2] from the harness guide[A], and then put it 3)Remove the harness spring[1] from the hook[2], and free the harness[3] from the guide[A]. through the hole[B].
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Disassembly/Assembly > Controller System > Removing the Engine Controller PCB(D530) > Procedure 4-203 5)Remove the engine controller PCB[1]. Caution: • 5 screws(with washers)[2] When reassembling, attach the engine controller PCB to the hook [1] and then • 1 screw(with tooth lock washer)[3] mount the switchboard [3] to the lower side of the switch arm [2].
Disassembly/Assembly > Controller System > Removing the Paper Leading Edge Sensor PCB(D530) > Procedure 4-204 Removing the Main Controller PCB(D530) Removing the Paper Leading Edge Sensor PCB(D530) ■ Preparation ■ Preparation 1) Remove the left cover 1) Remove the left cover 2)Remove the copyboard cover and reader unit.
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Disassembly/Assembly > Controller System > Removing the Paper Leading Edge Sensor PCB(D530) > Procedure 4-205 2)Disconnect the terminal[1], free the harness[2] from the harness guide[A], and then put it 3)Remove the harness retaining spring[1] from the hook[2], and free the harness[3] from the through the hole[B].
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Disassembly/Assembly > Controller System > Removing the Paper Leading Edge Sensor PCB(D530) > Procedure 4-206 5)Remove the harness[1] from the guide[A] and [B]. Note: The below picture shows how to wind the harness. F-4-531 6)Remove the paper leading edge sensor PCB[1] •...
Disassembly/Assembly > Controller System > Removing the Fixing Delivery/Paper Width Sensor PCB(D530) > Procedure 4-207 Removing the Fixing Delivery/Paper Width Sensor 2)Disconnect the terminal[1], free the harness[2] from the harness guide[A], and then put it through the hole[B]. PCB(D530) ■ Preparation 1) Remove the left cover 2)Remove the copyboard cover and reader unit.
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Disassembly/Assembly > Controller System > Removing the Fixing Delivery/Paper Width Sensor PCB(D530) > Procedure 4-208 3)Remove the harness retaining spring[1] from the hook[2], and free the harness[3] from the 5)Remove the harness[1] from the guide[A] and [B]. guide[A]. F-4-539 6)Remove the fixing delivery/paper width sensor PCB[1] F-4-537 4)Remove the harness retaining spring[1] and 4 connectors[2].
Disassembly/Assembly > Controller System > Removing the Multi Pickup Sensor Unit (D530) > Procedure 4-209 Removing the Multi Pickup Sensor Unit (D530) Note: ■ Preparation The below picture shows how to wind the harness. 1) Remove the left cover 2)Remove the copyboard cover and reader unit. 3)Remove the right cover 4)Remove the front cover unit.
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Disassembly/Assembly > Controller System > Removing the Multi Pickup Sensor Unit (D530) > Procedure 4-210 2)Remove the scanner cover[1] • 2 screws(black TP)[2] Caution: When install the scanner cover, be careful not to damage the motor driver PCB[1] Caution: and the duplex relay PCB[2] When removing the scanner cover, be sure that the cover does not get under[A] part of the right side plate.
Disassembly/Assembly > Controller System > Removing the Multi Pickup Sensor Unit (D530) > Procedure 4-211 Removing the Control Panel Unit (MF4780w/MF4770n/ Caution: MF4750/MF4730) Ensure that the shutter open/close lever [1] can move vertically. ■ Procedure 1)Open the reader unit [1] and remove the control panel support plate[2] •...
Disassembly/Assembly > Controller System > Removing the Drive Belt (MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-212 Removing the Drive Belt (MF4780w/MF4770n/MF4750/ 3) Remove the control panel unit[1] • 4 claws[2] MF4730) • 1 flat cable[3] ■ Preparation 1) Remove the right cover ■ Procedure 1) Close the reader unit [1] and place the host machine with its left side down.
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Disassembly/Assembly > Controller System > Removing the Drive Belt (MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-213 4)Remove the fixing transmission gear[1] and the cartridge transmission gear[2] F-4-551 3)Remove the shaft support[1], and remove the drive cover[2] • 5 screws[3] F-4-553 5)Remove the drive belt. Caution: Be sure to raise the drive cover[2] straight above slowly to prevent the gear phase from becoming displaced.
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Disassembly/Assembly > Controller System > Removing the Drive Belt (MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-214 Caution: Caution: Assemble the drive gear in the order shown in the below picture. When assembling the drive gear, install the cartridge arm [1] according to the position shown in the left picture.
Disassembly/Assembly > Controller System > Removing the Main Motor (MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-215 Removing the Main Motor (MF4780w/MF4770n/ MF4750/MF4730) Caution: Align the drive cover [2] with the 14 shaft holes [1] to mount it. ■ Preparation 1) Remove the left cover 2)Remove the SADF unit and reader unit.
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Disassembly/Assembly > Controller System > Removing the Main Motor (MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-216 2)Disconnect the connectors[1], and remove the motor driver PCB[2] • 2 claws[3] Caution: • 1 hook[4] When mounting the scanner cover, pass the shutter open/close lever [1] through the hole [A] in the scanner cover.
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Disassembly/Assembly > Controller System > Removing the Main Motor (MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-217 4)Free the motor harness[1] from the harness guide[C]. 7)Remove the main motor[1] 5)Remove the motor guide[2] • 2 screws(with washer)[2] • 1 screw[3] • 1 hook[4] F-4-565 F-4-563 6)Lower the tension unit[1], and remove the belt[2].
Disassembly/Assembly > Controller System > Removing the Engine Controller PCB (MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-218 Removing the Engine Controller PCB (MF4780w/ MF4770n/MF4750/MF4730) ■ Preparation 1) Remove the left cover 2)Remove the SADF unit and reader unit. 3)Remove the right cover 4)Remove the front cover unit. 5)Remove the upper cover.
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Disassembly/Assembly > Controller System > Removing the Engine Controller PCB (MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-219 4)Remove the harness retaining spring[1], and free the harness from the guide[A]. • 2 flat cables[2] Caution: • 6 connectors[3] When connecting the terminal[1], be sure that the contact spring[2] is in contact with F-4-572 5)Remove the engine controller PCB[1].
Disassembly/Assembly > Controller System > Removing the Main Controller PCB (MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-220 Removing the Main Controller PCB (MF4780w/ Caution: MF4770n/MF4750/MF4730) When reassembling, attach the engine controller PCB to the hook [1] and then mount the switchboard [3] to the lower side of the switch arm [2]. ■...
Disassembly/Assembly > Controller System > Removing the Wireless LAN PCB (MF4780w) > Procedure 4-221 Removing the FAX NCU PCB (MF4780w/MF4770n/ Removing the Wireless LAN PCB (MF4780w) MF4750/) ■ Preparation ■ Preparation 1) Remove the left cover 1) Remove the left cover ■...
Disassembly/Assembly > Controller System > Removing the Paper Leading Edge Sensor PCB (MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-222 Removing the Paper Leading Edge Sensor PCB (MF4780w/MF4770n/MF4750/MF4730) ■ Preparation 1) Remove the left cover 2)Remove the SADF unit and reader unit. 3)Remove the right cover 4)Remove the front cover unit.
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Disassembly/Assembly > Controller System > Removing the Paper Leading Edge Sensor PCB (MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-223 4)Remove the harness retaining spring[1] and 4 connectors[2] Caution: When connecting the terminal[1], be sure that the contact spring[2] is in contact with F-4-584 5)Remove the harness[1] from the guide[A] and [B].
Disassembly/Assembly > Controller System > Removing the Paper Leading Edge Sensor PCB (MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-224 Removing the Fixing Delivery/Paper Width Sensor PCB 6)Remove the paper leading edge sensor PCB[1] • 2 claws[2] (MF4780w/MF4770n/MF4750/MF4730) ■ Preparation 1) Remove the left cover 2)Remove the SADF unit and reader unit.
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Disassembly/Assembly > Controller System > Removing the Paper Leading Edge Sensor PCB (MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-225 Caution: When connecting the terminal[1], be sure that the contact spring[2] is in contact with F-4-589 2)Disconnect the terminal[1], free the harness[2] from the harness guide[A], and then put it through the hole[B].
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Disassembly/Assembly > Controller System > Removing the Paper Leading Edge Sensor PCB (MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-226 4)Remove the harness retaining spring[1] and 4 connectors[2] 6)Remove the fixing delivery/paper width sensor PCB[1] • 1 connector • 2 claws[3] F-4-593 5)Remove the harness[1] from the guide[A] and [B]. F-4-595 Note: The below picture shows how to wind the harness.it.
Disassembly/Assembly > Controller System > Removing the Paper Leading Edge Sensor PCB (MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-227 Removing the Toner Sensor and Multi Pickup Sensor Unit Caution: (MF4780w/MF4770n/MF4750/MF4730) When mounting the scanner cover, pass the shutter open/close lever [1] through the ■...
Disassembly/Assembly > Controller System > Removing the Speaker (MF4780w/MF4770n/MF4750) > Procedure 4-228 Removing the Speaker (MF4780w/MF4770n/MF4750) 2)Disconnect the connector[1], and put it through the hole[A] of the left side plate to the inside. ■ Preparation 1) Remove the left cover 2)Remove the right cover 3)Remove the front cover unit ■...
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Disassembly/Assembly > Controller System > Removing the Speaker (MF4780w/MF4770n/MF4750) > Procedure 4-229 2)Free the speaker harness[1] from the harness guide[A], and put it through the hole[B] of the right side plate to the outside. Caution: When mounting the speaker, attach the harness [1] to the upper side of the speaker. (So that the speaker harness connector can reach the main controller.) F-4-603 3)Remove the speaker[1].
Disassembly/Assembly > Controller System > Removing the Drive Belt (MF4720w/MF4712/MF4710) > Procedure 4-230 Removing the Control Panel Unit (MF4720w/MF4712/ Removing the Drive Belt (MF4720w/MF4712/MF4710) MF4710) ■ Preparation ■ Procedure 1) Remove the left cover ■ Procedure 1)Open the reader unit and remove the control panel support plate 1) Close the reader unit [1] and place the host machine with its left side down.
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Disassembly/Assembly > Controller System > Removing the Drive Belt (MF4720w/MF4712/MF4710) > Procedure 4-231 4)Remove the fixing transmission gear[1] and the cartridge transmission gear[2] F-4-609 3)Remove the shaft support[1], and remove the drive cover[2] • 5 screws[3] F-4-611 5)Remove the drive belt. Caution: Be sure to raise the drive cover[2] straight above slowly to prevent the gear phase from becoming displaced.
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Disassembly/Assembly > Controller System > Removing the Drive Belt (MF4720w/MF4712/MF4710) > Procedure 4-232 Caution: Caution: Assemble the drive gear in the order shown in the below picture. When assembling the drive gear, install the cartridge arm [1] according to the position shown in the left picture.
Disassembly/Assembly > Controller System > Removing the Main Motor (MF4720w/MF4712/MF4710) > Procedure 4-233 Removing the Main Motor (MF4720w/MF4712/MF4710) ■ Preparation Caution: Align the drive cover [2] with the 14 shaft holes [1] to mount it. 1) Remove the left cover 2)Remove the copyboard cover and reader unit.
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Disassembly/Assembly > Controller System > Removing the Main Motor (MF4720w/MF4712/MF4710) > Procedure 4-234 2)Disconnect the connectors[1], and remove the motor driver PCB[2] • 2 claws[3] Caution: • 1 hook[4] When mounting the scanner cover, pass the shutter open/close lever [1] through the hole [A] in the scanner cover.
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Disassembly/Assembly > Controller System > Removing the Main Motor (MF4720w/MF4712/MF4710) > Procedure 4-235 4)Free the motor harness[1] from the harness guide[C]. 7)Remove the main motor[1] 5)Remove the motor guide[2] 2 screws(with washer)[2] • 1 screw[3] • 1 hook[4] F-4-623 F-4-621 6)Lower the tension unit[1], and remove the belt[2].
Disassembly/Assembly > Controller System > Removing the Engine Controller PCB (MF4720w/MF4712/MF4710) > Procedure 4-236 Removing the Engine Controller PCB (MF4720w/ 2)Disconnect the terminal[1], free the harness[2] from the harness guide[A], and then put it through the hole[B]. MF4712/MF4710) ■ Preparation 1) Remove the left cover 2)Remove the copyboard cover and reader unit.
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Disassembly/Assembly > Controller System > Removing the Engine Controller PCB (MF4720w/MF4712/MF4710) > Procedure 4-237 3)Remove the harness spring[1] from the hook[2], and free the harness[3] from the guide[A]. 5)Remove the engine controller PCB[1]. • 2 screws(with washers)[2] • 1 screw(with tooth lock washer)[3] •...
Disassembly/Assembly > Controller System > Removing the Main Controller PCB (MF4720w/MF4712/MF4710) > Procedure 4-238 Removing the Main Controller PCB (MF4720w/ Caution: MF4712/MF4710) When reassembling, attach the engine controller PCB to the hook [1] and then mount the switchboard [3] to the lower side of the switch arm [2]. ■...
Disassembly/Assembly > Controller System > Removing the Paper Leading Edge Sensor PCB (MF4720w/MF4712/MF4710) > Procedure 4-239 Removing the Paper Leading Edge Sensor PCB 2)Disconnect the terminal[1], free the harness[2] from the harness guide[A], and then put it through the hole[B]. (MF4720w/MF4712/MF4710) ■...
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Disassembly/Assembly > Controller System > Removing the Paper Leading Edge Sensor PCB (MF4720w/MF4712/MF4710) > Procedure 4-240 3)Remove the harness spring[1] from the hook[2], and free the harness[3] from the guide[A]. 5)Remove the harness[1] from the guide[A] and [B]. F-4-637 F-4-639 6)Remove the paper leading edge sensor PCB[1] Remove the harness retaining spring [1] and 4 connectors [2].
Disassembly/Assembly > Controller System > Removing the Fixing Delivery/Paper Width Sensor PCB (MF4720w/MF4712/MF4710) > Procedure 4-241 Removing the Fixing Delivery/Paper Width Sensor PCB (MF4720w/MF4712/MF4710) Note: The below picture shows how to wind the harness. ■ Preparation 1) Remove the left cover 2)Remove the copyboard cover and reader unit.
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Disassembly/Assembly > Controller System > Removing the Fixing Delivery/Paper Width Sensor PCB (MF4720w/MF4712/MF4710) > Procedure 4-242 2)Disconnect the terminal[1], free the harness[2] from the harness guide[A], and then put it 3)Remove the harness spring[1] from the hook[2], and free the harness[3] from the guide[A]. through the hole[B].
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Disassembly/Assembly > Controller System > Removing the Fixing Delivery/Paper Width Sensor PCB (MF4720w/MF4712/MF4710) > Procedure 4-243 5)Remove the harness[1] from the guide[A] and [B]. Note: The below picture shows how to wind the harness. F-4-647 6)Remove the fixing delivery/paper width sensor PCB[1] •...
Disassembly/Assembly > Controller System > Removing the Toner Sensor and Multi Pickup Sensor Unit (MF4720w/MF4712/MF4710) > Procedure 4-244 Removing the Toner Sensor and Multi Pickup Sensor Caution: Unit (MF4720w/MF4712/MF4710) When mounting the scanner cover, pass the shutter open/close lever [1] through the ■...
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Disassembly/Assembly > Controller System > Removing the Toner Sensor and Multi Pickup Sensor Unit (MF4720w/MF4712/MF4710) > Procedure 4-245 2)Disconnect the 2 connectors[1], and put it through the hole[A] of the left side plate to the 4)Remove the toner sensor/multi pickup sensor unit. inside.
Disassembly/Assembly > Controller System > Removing the Control Panel Unit (L418S/L410/L190) > Procedure 4-246 Removing the Control Panel Unit (L418S/L410/L190) 2) Remove the control panel unit.[1] ■ Preparation 1)Remove the left cover 2)Remove the DADF unit and reader unit. 3)Remove the DADF unit. ■...
Disassembly/Assembly > Controller System > Removing the Drive Belt (L418S/L410/L190) > Procedure 4-247 Removing the Drive Belt (L418S/L410/L190) ■ Preparation 1) Remove the right cover ■ Procedure 1) Close the reader unit [1] and place the host machine with its left side down. Caution: Be sure to hold the reader unit firmly when turning the machine with its left side down because the reader unit will be forced open by hinge spring pressure.
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Disassembly/Assembly > Controller System > Removing the Drive Belt (L418S/L410/L190) > Procedure 4-248 4)Remove the fixing transmission gear[1] and the cartridge transmission gear[2] Caution: When assembling the drive gear, install the cartridge arm [1] according to the position shown in the left picture. F-4-661 5)Remove the drive belt.
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Disassembly/Assembly > Controller System > Removing the Drive Belt (L418S/L410/L190) > Procedure 4-249 Caution: Caution: Assemble the drive gear in the order shown in the below picture. Align the drive cover [2] with the 14 shaft holes [1] to mount it. F-4-664 F-4-665 [1] Primary deceleration pulley [6] Gear coupling...
Disassembly/Assembly > Controller System > Removing the Main Motor (L418S/L410/L190) > Procedure 4-250 Removing the Main Motor (L418S/L410/L190) 2)Remove the scanner cover[1] • 2 screws(black TP)[2] ■ Preparation Caution: 1) Remove the left cover When removing the scanner cover, be sure that the cover does not get under[A] part 2)Remove the DADF unit and reader unit.
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Disassembly/Assembly > Controller System > Removing the Main Motor (L418S/L410/L190) > Procedure 4-251 Caution: Caution: When install the scanner cover, be careful not to damage the motor driver PCB[1] Ensure that the shutter open/close lever [1] can move vertically. and the duplex relay PCB[2] F-4-670 F-4-668 3)Disconnect the 2 connectors[1], and remove the motor driver PCB[2]...
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Disassembly/Assembly > Controller System > Removing the Main Motor (L418S/L410/L190) > Procedure 4-252 4)Free the harness from the harness guide[A] and [B], and remove the duplex relay PCB[1] 7)Lower the tension unit[1], and remove the belt[2]. • 1 claw[2] • 1 hook[3] F-4-674 8)Remove the main motor[1] •...
Disassembly/Assembly > Controller System > Removing the Main Fan (L418S/L410/L190) > Procedure 4-253 Removing the Main Fan (L418S/L410/L190) ■ Preparation Caution: When installing the main motor, be sure to install the harness[1] to the upper side of 1) Remove the left cover the motor.
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Disassembly/Assembly > Controller System > Removing the Main Fan (L418S/L410/L190) > Procedure 4-254 2)Remove the scanner cover[1] • 2 screws(black TP)[2] Caution: When install the scanner cover, be careful not to damage the motor driver PCB[1] Caution: and the duplex relay PCB[2] When removing the scanner cover, be sure that the cover does not get under[A] part of the right side plate.
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Disassembly/Assembly > Controller System > Removing the Main Fan (L418S/L410/L190) > Procedure 4-255 4)Free the harness from the guide[A], and remove the main fan[1]. Caution: • 2 claws[2] Ensure that the shutter open/close lever [1] can move vertically. F-4-681 F-4-679 Caution: When mounting the main fan, attach the harness [2] to the upper-right side of the fan with the fan label [1] facing inwards.
Disassembly/Assembly > Controller System > Removing the Engine Controller PCB (L418S/L410/L190) > Procedure 4-256 Removing the Engine Controller PCB (L418S/L410/ 2)Disconnect the terminal[1], free the harness[2] from the harness guide[A], and then put it through the hole[B]. L190) ■ Preparation 1) Remove the left cover 2)Remove the DADF unit and reader unit.
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Disassembly/Assembly > Controller System > Removing the Engine Controller PCB (L418S/L410/L190) > Procedure 4-257 3)Remove the harness retaining spring[1] from the hook[2], and free the harness[3] from the 5)Remove the engine controller PCB[1]. guide[A]. • 5 screws(with washers)[2] • 1 screw(with tooth lock washer)[3] •...
Disassembly/Assembly > Controller System > Removing the Main Controller PCB (L418S/L410/L190) > Procedure 4-258 Removing the Main Controller PCB (L418S/L410/L190) Caution: ■ Preparation When reassembling, attach the engine controller PCB to the hook [1] and then mount the switchboard [3] to the lower side of the switch arm [2]. 1) Remove the left cover ■...
Disassembly/Assembly > Controller System > Removing the Wireless LAN PCB (L418S/L410/L190) > Procedure 4-259 Removing the FAX NCU PCB(L418S/L410/L190) Removing the Wireless LAN PCB (L418S/L410/L190) ■ Preparation ■ Preparation 1) Remove the left cover 1) Remove the left cover ■ Procedure ■...
Disassembly/Assembly > Controller System > Removing the Paper Leading Edge Sensor PCB (L418S/L410/L190) > Procedure 4-260 Removing the Paper Leading Edge Sensor PCB 2)Disconnect the terminal[1], free the harness[2] from the harness guide[A], and then put it through the hole[B]. (L418S/L410/L190) ■...
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Disassembly/Assembly > Controller System > Removing the Paper Leading Edge Sensor PCB (L418S/L410/L190) > Procedure 4-261 3)Remove the harness spring[1] from the hook[2], and free the harness[3] from the guide[A]. 5)Remove the harness[1] from the guide[A] and [B]. F-4-697 F-4-699 4)Remove the harness retaining spring[1] and 4 connectors[2].
Disassembly/Assembly > Controller System > Removing the Fixing Delivery/Paper Width Sensor PCB (L418S/L410/L190) > Procedure 4-262 Removing the Fixing Delivery/Paper Width Sensor PCB (L418S/L410/L190) Note: The below picture shows how to wind the harness. ■ Preparation 1) Remove the left cover 2)Remove the DADF unit and reader unit.
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Disassembly/Assembly > Controller System > Removing the Fixing Delivery/Paper Width Sensor PCB (L418S/L410/L190) > Procedure 4-263 2)Disconnect the terminal[1], free the harness[2] from the harness guide[A], and then put it 3)Remove the harness retaining spring[1] from the hook[2], and free the harness[3] from the through the hole[B].
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Disassembly/Assembly > Controller System > Removing the Fixing Delivery/Paper Width Sensor PCB (L418S/L410/L190) > Procedure 4-264 5)Remove the harness[1] from the guide[A] and [B]. Note: The below picture shows how to wind the harness. F-4-707 6)Remove the fixing delivery/paper width sensor PCB[1] •...
Disassembly/Assembly > Controller System > Removing the Toner Sensor and Multi Pickup Sensor Unit (L418S/L410/L190) > Procedure 4-265 Removing the Toner Sensor and Multi Pickup Sensor Unit (L418S/L410/L190) 2)Remove the scanner cover[1] • 2 screws(black TP)[2] ■ Preparation 1) Remove the left cover Caution: 2)Remove the DADF unit and reader unit.
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Disassembly/Assembly > Controller System > Removing the Toner Sensor and Multi Pickup Sensor Unit (L418S/L410/L190) > Procedure 4-266 Caution: Caution: Ensure that the shutter open/close lever [1] can move vertically. When install the scanner cover, be careful not to damage the motor driver PCB[1] and the duplex relay PCB[2] F-4-714 F-4-712...
Disassembly/Assembly > Controller System > Removing the Speaker (L418S/L410/L190) > Procedure 4-267 Removing the Speaker (L418S/L410/L190) Caution: ■ Preparation When mounting the scanner cover, pass the shutter open/close lever [1] through the 1) Remove the left cover hole [A] in the scanner cover ■...
Disassembly/Assembly > Laser Exposure System > Removing the Laser Scanner Unit (MF4890dw/MF4880dw) > Procedure 4-268 Laser Exposure System Caution: • When mounting the scanner cover, pass the shutter open/close lever [1] through the Removing the Laser Scanner Unit (MF4890dw/ hole [A] in the scanner cover. MF4880dw) ■...
Disassembly/Assembly > Laser Exposure System > Removing the Laser Scanner Unit (MF4870dn/4830d) > Procedure 4-269 Removing the Laser Scanner Unit (MF4870dn/4830d) 2) Move the laser scanner unit [1]. • 4 screws [2] ■ Preparation • 1 sponge[3] 1)Remove the left cover. 2)Remove the SADF unit and reader unit.
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Disassembly/Assembly > Laser Exposure System > Removing the Laser Scanner Unit (MF4870dn/4830d) > Procedure 4-270 2) Move the laser scanner unit [1]. Caution: • 4 screws [2] • 1 sponge[3] • When mounting the scanner cover, pass the shutter open/close lever [1] through the hole [A] in the scanner cover.
Disassembly/Assembly > Laser Exposure System > Removing the Laser Scanner Unit (MF4820d) > Procedure 4-271 Removing the Laser Scanner Unit (MF4820d) Caution: ■ Preparation • When mounting the scanner cover, pass the shutter open/close lever [1] through the hole [A] in the scanner cover. 1)Remove the left cover.
Disassembly/Assembly > Laser Exposure System > Removing the Laser Scanner Unit (D530) > Procedure 4-272 Removing the Laser Scanner Unit (D530) 2) Move the laser scanner unit [1]. • 4 screws [2] ■ Preparation • 1 sponge[3] 1)Remove the left cover. 2)Remove the copyboard cover and reader unit.
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Disassembly/Assembly > Laser Exposure System > Removing the Laser Scanner Unit (D530) > Procedure 4-273 2)Remove the scanner cover[1] • 2 screws(black TP)[2] Caution: When install the scanner cover, be careful not to damage the motor driver PCB[1] Caution: and the duplex relay PCB[2] When removing the scanner cover, be sure that the cover does not get under[A] part of the right side plate.
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Disassembly/Assembly > Laser Exposure System > Removing the Laser Scanner Unit (D530) > Procedure 4-274 3) Remove the laser scanner unit [1]. Caution: • 1 flat cable [2] Ensure that the shutter open/close lever [1] can move vertically. • 1 connector [3] F-4-739 F-4-737 3)Move the laser scanner unit [1].
Disassembly/Assembly > Laser Exposure System > Removing the Laser Scanner Unit (MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-275 Removing the Laser Scanner Unit (MF4780w/ Caution: MF4770n/MF4750/MF4730) • When mounting the scanner cover, pass the shutter open/close lever [1] through the hole [A] in the scanner cover. ■...
Disassembly/Assembly > Laser Exposure System > Removing the Laser Scanner Unit (MF4720w/MF4712/MF4710) > Procedure 4-276 Removing the Laser Scanner Unit (MF4720w/MF4712/ 2) Move the laser scanner unit [1]. • 4 screws [2] MF4710) • 1 sponge[3] ■ Preparation 1)Remove the left cover. 2)Remove the copyboard cover and reader unit.
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Disassembly/Assembly > Laser Exposure System > Removing the Laser Scanner Unit (MF4720w/MF4712/MF4710) > Procedure 4-277 2) Move the laser scanner unit [1]. Caution: • 4 screws [2] • 1 sponge[3] • When mounting the scanner cover, pass the shutter open/close lever [1] through the hole [A] in the scanner cover.
Disassembly/Assembly > Laser Exposure System > Removing the Laser Scanner Unit (L418S/L410/L190) > Procedure 4-278 Removing the Laser Scanner Unit (L418S/L410/L190) 2)Remove the scanner cover[1] • 2 screws(black TP)[2] ■ Preparation Caution: 1)Remove the left cover. When removing the scanner cover, be sure that the cover does not get under[A] part 2)Remove the DADF unit and reader unit.
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Disassembly/Assembly > Laser Exposure System > Removing the Laser Scanner Unit (L418S/L410/L190) > Procedure 4-279 Caution: Caution: Ensure that the shutter open/close lever [1] can move vertically. When install the scanner cover, be careful not to damage the motor driver PCB[1] and the duplex relay PCB[2] F-4-754 F-4-752...
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Disassembly/Assembly > Laser Exposure System > Removing the Laser Scanner Unit (L418S/L410/L190) > Procedure 4-280 3) Remove the laser scanner unit [1]. • 1 flat cable [2] • 1 connector [3] F-4-756 4-280 Disassembly/Assembly > Laser Exposure System > Removing the Laser Scanner Unit (L418S/L410/L190) > Procedure...
Disassembly/Assembly > Image Formation System > Removing the Transfer Roller (MF4890dw/MF4880dw) > Procedure 4-281 Image Formation System Removing the Transfer Roller (MF4890dw/MF4880dw) ■ Procedure Caution: When assembling/disassembling the transfer roller, do not touch the surface of the roller. 1) Open the reader unit [1] and delivery tray [2]. , and remove the drum unit[3]. F-4-758 F-4-757 2) Remove the transfer roller bushing [1].
Disassembly/Assembly > Image Formation System > Removing the Transfer Roller (MF4870dn/MF4830d) > Procedure 4-282 Removing the Transfer Roller (MF4870dn/MF4830d) 3) Hold both shafts [1] of the transfer roller and remove the roller [2]. ■ Procedure Caution: When installing the transfer roller to the host machine, be sure to fit the protrusion[2] Caution: to the spring[1] When assembling/disassembling the transfer roller, do not touch the surface of the...
Disassembly/Assembly > Image Formation System > Removing the Transfer Roller (MF4820d) > Procedure 4-283 Removing the Transfer Roller (MF4820d) 3) Hold both shafts [1] of the transfer roller and remove the roller [2]. ■ Procedure Caution: When installing the transfer roller to the host machine, be sure to fit the protrusion[2] Caution: to the spring[1] When assembling/disassembling the transfer roller, do not touch the surface of the...
Disassembly/Assembly > Image Formation System > Removing the Transfer Roller (D530) > Procedure 4-284 Removing the Transfer Roller (D530) 3) Hold both shafts [1] of the transfer roller and remove the roller [2]. ■ Procedure Caution: When installing the transfer roller to the host machine, be sure to fit the protrusion[2] Caution: to the spring[1] When assembling/disassembling the transfer roller, do not touch the surface of the...
Disassembly/Assembly > Image Formation System > Removing the Transfer Roller (MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-285 Removing the Transfer Roller (MF4780w/MF4770n/ 3) Hold both shafts [1] of the transfer roller and remove the roller [2]. MF4750/MF4730) Caution: ■ Procedure When installing the transfer roller to the host machine, be sure to fit the protrusion[2] to the spring[1] Caution: When assembling/disassembling the transfer roller, do not touch the surface of the...
Disassembly/Assembly > Image Formation System > Removing the Transfer Roller (MF4720w/MF4712/MF4710) > Procedure 4-286 Removing the Transfer Roller (MF4720w/MF4712/ 3) Hold both shafts [1] of the transfer roller and remove the roller [2]. MF4710) Caution: ■ Procedure When installing the transfer roller to the host machine, be sure to fit the protrusion[2] to the spring[1] Caution: When assembling/disassembling the transfer roller, do not touch the surface of the...
Disassembly/Assembly > Image Formation System > Removing the Transfer Roller (L418S/L410/L190) > Procedure 4-287 Removing the Transfer Roller (L418S/L410/L190) 3) Hold both shafts [1] of the transfer roller and remove the roller [2]. ■ Procedure Caution: When installing the transfer roller to the host machine, be sure to fit the protrusion[2] Caution: to the spring[1] When assembling/disassembling the transfer roller, do not touch the surface of the...
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Disassembly/Assembly > Image Formation System > Removing the Transfer Roller (L418S/L410/L190) > Procedure 4-288 3) Hold both shafts [1] of the transfer roller and remove the roller [2]. Caution: When installing the transfer roller to the host machine, be sure to fit the protrusion[2] to the spring[1] F-4-783 F-4-784...
Disassembly/Assembly > Fixing System > Removing the Fixing Assembly (MF4890dw/MF4880dw) > Procedure 4-289 Fixing System 2)Disconnect the terminal[1], free the harness[2] from the harness guide[A], and then put it through the hole[B]. Removing the Fixing Assembly (MF4890dw/MF4880dw) ■ Preparation 1)Remove the left cover 2)Remove the DADF unit and reader unit 3)Remove the right cover 4)Remove the front cover unit...
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Disassembly/Assembly > Fixing System > Removing the Fixing Assembly (MF4890dw/MF4880dw) > Procedure 4-290 3)Remove the harness retaining spring[1] from the hook[2], and free the harness[3] from the 7) Disengage the fixing harness [4] from the harness holder [3]. guide[A]. F-4-790 8) Remove the harness holder [1].
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Disassembly/Assembly > Fixing System > Removing the Fixing Assembly (MF4890dw/MF4880dw) > Procedure 4-291 9) Remove the shaft support [1] of the delivery roller. Caution: When mounting the fixing harness, wrap the fixing harness [2] around the protruding part [1] of the harness holder, pass it through the harness guide [A], and then mount the connector [3].
Disassembly/Assembly > Fixing System > Removing the Fixing Assembly(MF4870dn/MF4830d) > Procedure 4-292 Removing the Fixing Assembly(MF4870dn/MF4830d) (MF4870dn) 1)Remove the main controller mounting plate[1] ■ Preparation • 4 screws(with washer)[2] • 2 screws(black TP)[3] 1)Remove the left cover 2)Remove the SADF unit and reader unit 3)Remove the right cover 4)Remove the front cover unit 5)Remove the upper cover...
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Disassembly/Assembly > Fixing System > Removing the Fixing Assembly(MF4870dn/MF4830d) > Procedure 4-293 4)Remove the 2 left/right reinforcing plates[1] • 4 screws(black TP)[2] Caution: When connecting the terminal[1], be sure that the contact spring[2] is in contact with F-4-801 5) Remove the 4 connectors [1]. 6) Disengage the harness [2] from the harness guide [A].
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Disassembly/Assembly > Fixing System > Removing the Fixing Assembly(MF4870dn/MF4830d) > Procedure 4-294 8) Remove the harness holder [1]. 10) Remove the fixing assembly [1]. • 1 claw [2] • 3 screws [2] F-4-803 9) Remove the shaft support [1] of the delivery roller. F-4-805 Caution: When mounting the fixing harness, wrap the fixing harness [2] around the protruding...
Disassembly/Assembly > Fixing System > Removing the Fixing Assembly (MF4820d) > Procedure 4-295 Removing the Fixing Assembly (MF4820d) Note: ■ Preparation The below picture shows how to wind the harness. 1)Remove the left cover 2)Remove the copyboard cover and reader unit 3)Remove the right cover 4)Remove the front cover unit 5)Remove the upper cover...
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Disassembly/Assembly > Fixing System > Removing the Fixing Assembly (MF4820d)) > Procedure 4-296 2)Disconnect the terminal[1], free the harness[2] from the harness guide[A], and then put it 3)Remove the harness retaining spring[1] from the hook[2], and free the harness[3] from the through the hole[B].
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Disassembly/Assembly > Fixing System > Removing the Fixing Assembly (MF4820d)) > Procedure 4-297 7) Disengage the fixing harness [4] from the harness holder [3]. 9) Remove the shaft support [1] of the delivery roller. F-4-815 F-4-813 10) Remove the fixing assembly [1]. 8) Remove the harness holder [1].
Disassembly/Assembly > Fixing System > Removing the Fixing Assembly (D530) > Procedure 4-298 Removing the Fixing Assembly (D530) Caution: ■ Preparation When mounting the fixing harness, wrap the fixing harness [2] around the protruding part [1] of the harness holder, pass it through the harness guide [A], and then mount 1)Remove the left cover the connector [3].
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Disassembly/Assembly > Fixing System > Removing the Fixing Assembly (D530) > Procedure 4-299 2)Disconnect the terminal[1], free the harness[2] from the harness guide[A], and then put it 3)Remove the harness retaining spring[1] from the hook[2], and free the harness[3] from the through the hole[B].
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Disassembly/Assembly > Fixing System > Removing the Fixing Assembly (D530) > Procedure 4-300 7) Disengage the fixing harness [4] from the harness holder [3]. 9) Remove the shaft support [1] of the delivery roller. F-4-826 F-4-824 10) Remove the fixing assembly [1]. 8) Remove the harness holder [1].
Disassembly/Assembly > Fixing System > Removing the Fixing Assembly (MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-301 Removing the Fixing Assembly (MF4780w/MF4770n/ Caution: MF4750/MF4730) When mounting the fixing harness, wrap the fixing harness [2] around the protruding part [1] of the harness holder, pass it through the harness guide [A], and then mount ■...
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Disassembly/Assembly > Fixing System > Removing the Fixing Assembly (MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-302 (MF4730) 1)Remove the main controller mounting plate[1] Caution: • 1 screw(with washer)[2] When connecting the terminal[1], be sure that the contact spring[2] is in contact with • 1 screw(black TP)[3] F-4-831 F-4-833 2)Disconnect the terminal[1], free the harness[2] from the harness guide[A], and then put it...
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Disassembly/Assembly > Fixing System > Removing the Fixing Assembly (MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-303 4)Remove the 2 left/right reinforcing plates[1] 8) Remove the harness holder [1]. • 4 screws(black TP)[2] • 1 claw [2] F-4-837 F-4-835 9) Remove the shaft support [1] of the delivery roller. 5) Remove the 4 connectors [1].
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Disassembly/Assembly > Fixing System > Removing the Fixing Assembly (MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-304 10) Remove the fixing assembly [1]. • 3 screws [2] Note: The below picture shows how to wind the harness. F-4-839 F-4-841 Caution: When mounting the fixing harness, wrap the fixing harness [2] around the protruding part [1] of the harness holder, pass it through the harness guide [A], and then mount the connector [3].
Disassembly/Assembly > Fixing System > Removing the Fixing Assembly (MF4720w/MF4712/MF4710) > Procedure 4-305 Removing the Fixing Assembly (MF4720w/MF4712/ 2)Disconnect the terminal[1], free the harness[2] from the harness guide[A], and then put it through the hole[B]. MF4710) ■ Preparation 1)Remove the left cover 2)Remove the copyboard cover and reader unit 3)Remove the right cover 4)Remove the front cover unit...
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Disassembly/Assembly > Fixing System > Removing the Fixing Assembly (MF4720w/MF4712/MF4710) > Procedure 4-306 3)Remove the harness retaining spring[1] from the hook[2], and free the harness[3] from the 7) Disengage the fixing harness [4] from the harness holder [3]. guide[A]. F-4-847 8) Remove the harness holder [1].
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Disassembly/Assembly > Fixing System > Removing the Fixing Assembly (MF4720w/MF4712/MF4710) > Procedure 4-307 9) Remove the shaft support [1] of the delivery roller. Caution: When mounting the fixing harness, wrap the fixing harness [2] around the protruding part [1] of the harness holder, pass it through the harness guide [A], and then mount the connector [3].
Disassembly/Assembly > Fixing System > Removing the Fixing Assembly (L418S/L410/L190) > Procedure 4-308 Removing the Fixing Assembly (L418S/L410/L190) 2)Disconnect the terminal[1], free the harness[2] from the harness guide[A], and then put it through the hole[B]. ■ Preparation 1)Remove the left cover 2)Remove the DADF unit and reader unit 3)Remove the right cover 4)Remove the front cover unit...
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Disassembly/Assembly > Fixing System > Removing the Fixing Assembly (L418S/L410/L190) > Procedure 4-309 3)Remove the harness retaining spring[1] from the hook[2], and free the harness[3] from the 7) Disengage the fixing harness [4] from the harness holder [3]. guide[A]. F-4-858 8) Remove the harness holder [1].
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Disassembly/Assembly > Fixing System > Removing the Fixing Assembly (L418S/L410/L190) > Procedure 4-310 9) Remove the shaft support [1] of the delivery roller. Caution: When mounting the fixing harness, wrap the fixing harness [2] around the protruding part [1] of the harness holder, pass it through the harness guide [A], and then mount the connector [3].
Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Unit (MF4890dw/MF4880dw) > Procedure 4-311 Pickup And Feeding System 2)Disconnect the terminal[1], free the harness[2] from the harness guide[A], and then put it through the hole[B]. Removing the Pickup Unit (MF4890dw/MF4880dw) ■...
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Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Unit (MF4890dw/MF4880dw) > Procedure 4-312 3)Remove the harness retaining spring[1] from the hook[2], and free the harness[3] from the 5)Remove the harness[1] from the guide[A] and [B]. guide[A]. F-4-869 6)Remove the shaft retainer[1] F-4-867 4)Remove the harness retaining spring[1] and 4 connectors[2].
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Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Unit (MF4890dw/MF4880dw) > Procedure 4-313 7)Face the front of the host machine downwards. 9)Remove the pickup unit[2] while opening the pickup tray[1] F-4-871 F-4-873 Caution: 8) Remove the 6 screws (TP) [1] and the screw (with washer) [2]. When installing/removing the pickup unit, be sure to do so while opening the pickup tray.
Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Tray Unit (MF4890dw/MF4880dw) > Procedure 4-314 Removing the Pickup Tray Unit (MF4890dw/ Caution: MF4880dw) When assembling/disassembling the pickup tray unit, hold the pickup tray [1] down to attach/release it. ■ Preparation 1) Remove the left cover 2)Remove the DADF unit and reader unit.
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Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Tray Unit (MF4890dw/MF4880dw) > Procedure 4-315 Caution: Caution: Align the 2 boss holes [1], 2 hooks [2] and 2 bosses [3] of the pickup tray unit with the When assembling the pickup tray unit, check the positioning of the 6 bosses [1] in the pickup unit to mount the unit.
Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Roller (MF4890dw/MF4880dw) > Procedure 4-316 Removing the Pickup Roller (MF4890dw/MF4880dw) ■ Preparation 1) Remove the left cover 2)Remove the DADF unit and reader unit. 3)Remove the right cover 4)Remove the front cover unit. 5)Remove the upper cover.
Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Solenoid (MF4890dw/MF4880dw) > Procedure 4-317 2)Disconnect the terminal[1], free the harness[2] from the harness guide[A], and then put it Removing the Pickup Solenoid (MF4890dw/MF4880dw) through the hole[B]. ■ Preparation 1) Remove the left cover 2)Remove the DADF unit and reader unit.
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Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Solenoid (MF4890dw/MF4880dw) > Procedure 4-318 3)Remove the harness retaining spring[1] from the hook[2], and free the harness[3] from the 5)Free the pickup solenoid harness[1] from the harness guide[A] guide[A]. F-4-883 6)Remove the screw[1], move the solenoid arm[2] and remove the pickup solenoid[3].
Disassembly/Assembly > Pickup And Feeding System > Removing the Separation Pad (MF4890dw/MF4880dw) > Procedure 4-319 Removing the Separation Pad (MF4890dw/MF4880dw) Caution: ■ Procedure The below picture shows how to wind the harness. Caution: When assembling/disassembling the separation pad, do not touch the surface of 1) Face the left side of the host machine downwards.
Disassembly/Assembly > Pickup And Feeding System > Removing the Duplex Feed Unit (MF4890dw/MF4880dw) > Procedure 4-320 Removing the Duplex Feed Unit (MF4890dw/ 2) Remove the 2 screws (TP) [1] and 2 screws (tapping) [2] using a stubby screwdriver. MF4880dw) ■ Preparation 1) Remove the left cover 2)Remove the DADF unit and reader unit.
Disassembly/Assembly > Pickup And Feeding System > Removing the Duplex Solenoid (MF4890dw/MF4880dw) > Procedure 4-321 Removing the Duplex Solenoid (MF4890dw/ 5)Remove the duplex feed unit[1] • 1 claw[2] MF4880dw) • 2 hooks[3] ■ Preparation 1) Remove the left cover 2)Remove the DADF unit and reader unit. 3)Remove the right cover 4)Remove the front cover unit.
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Disassembly/Assembly > Pickup And Feeding System > Removing the Duplex Solenoid (MF4890dw/MF4880dw) > Procedure 4-322 2)Free the solenoid harness[1] from the guide[A], and put it through the hole[B] of the right side plate to the outside. Caution: When mounting the scanner cover, pass the shutter open/close lever [1] through the hole [A] in the scanner cover.
Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Unit (MF4870dn/MF4830d) > Procedure 4-323 Removing the Pickup Unit (MF4870dn/MF4830d) ■ Preparation Caution: When mounting the duplex solenoid, align the solenoid lever [1] with the groove in 1) Remove the left cover the link [2], and insert the 2 solenoid positioning protrusions [3] into the 2 positioning 2)Remove the SADF unit and reader unit.
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Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Unit (MF4870dn/MF4830d) > Procedure 4-324 Caution: When connecting the terminal[1], be sure that the contact spring[2] is in contact with F-4-896 2)Disconnect the terminal[1], free the harness[2] from the harness guide[A], and then put it through the hole[B].
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Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Unit (MF4870dn/MF4830d) > Procedure 4-325 4)Remove the harness retaining spring[1] and 4 connectors[2]. 6)Remove the shaft retainer[1] F-4-900 5)Remove the harness[1] from the guide[A] and [B]. F-4-902 7)Face the front of the host machine downwards. F-4-901 F-4-903 4-325...
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Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Unit (MF4870dn/MF4830d) > Procedure 4-326 8) Remove the 6 screws (TP) [1] and the screw (with washer) [2]. Note: The below picture shows how to wind the harness. F-4-904 F-4-906 9)Remove the pickup unit[2] while opening the pickup tray[1] F-4-905 Caution:...
Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Tray Unit (MF4870dn/MF4830d) > Procedure 4-327 Removing the Pickup Tray Unit (MF4870dn/MF4830d) Caution: ■ Preparation When assembling/disassembling the pickup tray unit, hold the pickup tray [1] down to attach/release it. 1) Remove the left cover 2)Remove the SADF unit and reader unit.
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Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Tray Unit (MF4870dn/MF4830d) > Procedure 4-328 Caution: Caution: Align the 2 boss holes [1], 2 hooks [2] and 2 bosses [3] of the pickup tray unit with the When assembling the pickup tray unit, check the positioning of the 6 bosses [1] in the pickup unit to mount the unit.
Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Roller (MF4870dn/MF4830d) > Procedure 4-329 Removing the Pickup Roller (MF4870dn/MF4830d) ■ Preparation 1) Remove the left cover 2)Remove the SADF unit and reader unit. 3)Remove the right cover 4)Remove the front cover unit. 5)Remove the upper cover.
Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Solenoid (MF4870dn/MF4830d) > Procedure 4-330 Removing the Pickup Solenoid (MF4870dn/MF4830d) ■ Preparation 1) Remove the left cover 2)Remove the SADF unit and reader unit. 3)Remove the right cover 4)Remove the front cover unit. 5)Remove the upper cover.
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Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Solenoid (MF4870dn/MF4830d) > Procedure 4-331 4)Remove the harness retaining spring[1] and 4 connectors[2]. Caution: When connecting the terminal[1], be sure that the contact spring[2] is in contact with F-4-915 5)Free the pickup solenoid harness[1] from the harness guide[A] F-4-913 3)Remove the harness retaining spring[1] from the hook[2], and free the harness[3] from the guide[A].
Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Solenoid (MF4870dn/MF4830d) > Procedure 4-332 Removing the Separation Pad (MF4870dn/MF4830d) 6)Remove the screw[1], move the solenoid arm[2] and remove the pickup solenoid[3]. ■ Procedure Caution: When assembling/disassembling the separation pad, do not touch the surface of 1) Face the left side of the host machine downwards.
Disassembly/Assembly > Pickup And Feeding System > Removing the Duplex Feed Unit (MF4870dn/MF4830d) > Procedure 4-333 Removing the Duplex Feed Unit (MF4870dn/MF4830d) 2) Remove the 2 screws (TP) [1] and 2 screws (tapping) [2] using a stubby screwdriver. ■ Preparation 1) Remove the left cover 2)Remove the SADF unit and reader unit.
Disassembly/Assembly > Pickup And Feeding System > Removing the Duplex Solenoid (MF4870dn/MF4830d) > Procedure 4-334 Removing the Duplex Solenoid (MF4870dn/MF4830d) 5)Remove the duplex feed unit[1]. • 1 claw[2] ■ Preparation • 2 hooks[3] 1) Remove the left cover 2)Remove the SADF unit and reader unit. 3)Remove the right cover 4)Remove the front cover unit.
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Disassembly/Assembly > Pickup And Feeding System > Removing the Duplex Solenoid (MF4870dn/MF4830d) > Procedure 4-335 2)Free the solenoid harness[1] from the guide[A], and put it through the hole[B] of the right side plate to the outside. Caution: When mounting the scanner cover, pass the shutter open/close lever [1] through the hole [A] in the scanner cover.
Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Unit (MF4820d) > Procedure 4-336 Removing the Pickup Unit (MF4820d) ■ Preparation Caution: When mounting the duplex solenoid, align the solenoid lever [1] with the groove in 1) Remove the left cover the link [2], and insert the 2 solenoid positioning protrusions [3] into the 2 positioning 2)Remove the copyboard cover and reader unit.
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Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Unit (MF4820d) > Procedure 4-337 2)Disconnect the terminal[1], free the harness[2] from the harness guide[A], and then put it 3)Remove the harness retaining spring[1] from the hook[2], and free the harness[3] from the through the hole[B].
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Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Unit (MF4820d) > Procedure 4-338 5)Remove the harness[1] from the guide[A] and [B]. 7)Face the front of the host machine downwards. F-4-935 F-4-933 8) Remove the 6 screws (TP) [1] and the screw (with washer) [2]. 6)Remove the shaft retainer[1] F-4-936 F-4-934...
Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Tray Unit (MF4820d) > Procedure 4-339 Removing the Pickup Tray Unit (MF4820d) 9)Remove the pickup unit[2] while opening the pickup tray[1] ■ Preparation 1) Remove the left cover 2)Remove the copyboard cover and reader unit. 3)Remove the right cover 4)Remove the front cover unit.
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Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Tray Unit (MF4820d) > Procedure 4-340 Caution: Caution: When assembling/disassembling the pickup tray unit, hold the pickup tray [1] down Align the 2 boss holes [1], 2 hooks [2] and 2 bosses [3] of the pickup tray unit with the to attach/release it.
Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Roller (MF4820d) > Procedure 4-341 Removing the Pickup Roller (MF4820d) Caution: ■ Preparation When assembling the pickup tray unit, check the positioning of the 6 bosses [1] in the 1) Remove the left cover unit.
Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Solenoid (MF4820d) > Procedure 4-342 Removing the Pickup Solenoid (MF4820d) ■ Preparation 1) Remove the left cover 2)Remove the copyboard cover and reader unit. 3)Remove the right cover 4)Remove the front cover unit. 5)Remove the upper cover.
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Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Solenoid (MF4820d) > Procedure 4-343 2)Disconnect the terminal[1], free the harness[2] from the harness guide[A], and then put it 3)Remove the harness retaining spring[1] from the hook[2], and free the harness[3] from the through the hole[B].
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Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Solenoid (MF4820d) > Procedure 4-344 5)Free the pickup solenoid harness[1] from the harness guide[A] Caution: The below picture shows how to wind the harness. F-4-947 6)Remove the screw[1], move the solenoid arm[2] and remove the pickup solenoid[3]. F-4-948 4-344 Disassembly/Assembly >...
Disassembly/Assembly > Pickup And Feeding System > Removing the Duplex Feed Unit (MF4820d) > Procedure 4-345 Removing the Separation Pad (MF4820d) Removing the Duplex Feed Unit (MF4820d) ■ Procedure ■ Preparation 1) Remove the left cover 2)Remove the copyboard cover and reader unit. Caution: 3)Remove the right cover When assembling/disassembling the separation pad, do not touch the surface of...
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Disassembly/Assembly > Pickup And Feeding System > Removing the Duplex Feed Unit (MF4820d) > Procedure 4-346 2) Remove the 2 screws (TP) [1] and 2 screws (tapping) [2] using a stubby screwdriver. 5)Remove the duplex feed unit[1]. • 1 claw[2] •...
Disassembly/Assembly > Pickup And Feeding System > Removing the Duplex Solenoid (MF4820d) > Procedure 4-347 Removing the Duplex Solenoid (MF4820d) Caution: ■ Preparation When mounting the scanner cover, pass the shutter open/close lever [1] through the 1) Remove the left cover hole [A] in the scanner cover.
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Disassembly/Assembly > Pickup And Feeding System > Removing the Duplex Solenoid (MF4820d) > Procedure 4-348 2)Free the solenoid harness[1] from the guide[A], and put it through the hole[B] of the right side plate to the outside. Caution: When mounting the duplex solenoid, align the solenoid lever [1] with the groove in the link [2], and insert the 2 solenoid positioning protrusions [3] into the 2 positioning holes [4] in the side panel to mount the solenoid.
Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Unit (D530) > Procedure 4-349 Removing the Pickup Unit (D530) 2)Disconnect the terminal[1], free the harness[2] from the harness guide[A], and then put it through the hole[B]. ■ Preparation 1) Remove the left cover 2)Remove the copyboard cover and reader unit.
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Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Unit (D530) > Procedure 4-350 3)Remove the harness retaining spring[1] from the hook[2], and free the harness[3] from the 5)Remove the harness[1] from the guide[A] and [B]. guide[A]. F-4-964 6)Remove the shaft retainer[1] F-4-962 4)Remove the harness retaining spring[1] and 4 connectors[2].
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Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Unit (D530) > Procedure 4-351 7)Face the front of the host machine downwards. 9)Remove the pickup unit[2] while opening the pickup tray[1] F-4-966 F-4-968 8) Remove the 6 screws (TP) [1] and the screw (with washer) [2]. Caution: When installing/removing the pickup unit, be sure to do so while opening the pickup tray.
Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Tray Unit (D530) > Procedure 4-352 Removing the Pickup Tray Unit (D530) Caution: ■ Preparation When assembling/disassembling the pickup tray unit, hold the pickup tray [1] down to attach/release it. 1) Remove the left cover 2)Remove the copyboard cover and reader unit.
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Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Tray Unit (D530) > Procedure 4-353 Caution: Caution: Align the 2 boss holes [1], 2 hooks [2] and 2 bosses [3] of the pickup tray unit with the When assembling the pickup tray unit, check the positioning of the 6 bosses [1] in the pickup unit to mount the unit.
Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Roller (D530) > Procedure 4-354 Removing the Pickup Roller (D530) ■ Preparation 1) Remove the left cover 2)Remove the copyboard cover and reader unit. 3)Remove the right cover 4)Remove the front cover unit. 5)Remove the upper cover.
Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Solenoid (D530) > Procedure 4-355 2)Disconnect the terminal[1], free the harness[2] from the harness guide[A], and then put it Removing the Pickup Solenoid (D530) through the hole[B]. ■ Preparation 1) Remove the left cover 2)Remove the copyboard cover and reader unit.
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Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Solenoid (D530) > Procedure 4-356 3)Remove the harness retaining spring[1] from the hook[2], and free the harness[3] from the 5)Free the pickup solenoid harness[1] from the harness guide[A] guide[A]. F-4-978 F-4-976 6)Remove the screw[1], move the solenoid arm[2] and remove the pickup solenoid[3].
Disassembly/Assembly > Pickup And Feeding System > Removing the Separation Pad (D530) > Procedure 4-357 Removing the Separation Pad (D530) Caution: ■ Procedure The below picture shows how to wind the harness. Caution: When assembling/disassembling the separation pad, do not touch the surface of the separation pad.
Disassembly/Assembly > Pickup And Feeding System > Removing the Duplex Feed Unit (D530) > Procedure 4-358 Removing the Duplex Feed Unit (D530) 2) Remove the 2 screws (TP) [1] and 2 screws (tapping) [2] using a stubby screwdriver. ■ Preparation 1) Remove the left cover 2)Remove the copyboard cover and reader unit.
Disassembly/Assembly > Pickup And Feeding System > Removing the Duplex Solenoid (D530) > Procedure 4-359 Removing the Duplex Solenoid (D530) 5)Remove the duplex feed unit[1]. • 1 claw[2] ■ Preparation • 2 hooks[3] 1) Remove the left cover 2)Remove the copyboard cover and reader unit. 3)Remove the right cover 4)Remove the front cover unit.
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Disassembly/Assembly > Pickup And Feeding System > Removing the Duplex Solenoid (D530) > Procedure 4-360 2)Remove the scanner cover[1] • 2 screws(black TP)[2] Caution: When install the scanner cover, be careful not to damage the motor driver PCB[1] Caution: and the duplex relay PCB[2] When removing the scanner cover, be sure that the cover does not get under[A] part of the right side plate.
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Disassembly/Assembly > Pickup And Feeding System > Removing the Duplex Solenoid (D530) > Procedure 4-361 4)Remove the duplex solenoid[1]. Caution: Ensure that the shutter open/close lever [1] can move vertically. F-4-991 F-4-989 Caution: When mounting the duplex solenoid, align the solenoid lever [1] with the groove in 3)Free the solenoid harness[1] from the guide[A], and put it through the hole[B] of the right the link [2], and insert the 2 solenoid positioning protrusions [3] into the 2 positioning side plate to the outside.
Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Unit (MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-362 Removing the Pickup Unit (MF4780w/MF4770n/ MF4750/MF4730) ■ Preparation 1) Remove the left cover 2)Remove the SADF unit and reader unit. 3)Remove the right cover 4)Remove the front cover unit. 5)Remove the upper cover.
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Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Unit (MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-363 4)Remove the harness retaining spring[1] and 4 connectors[2]. Caution: When connecting the terminal[1], be sure that the contact spring[2] is in contact with F-4-997 5)Remove the harness[1] from the guide[A] and [B]. F-4-995 3)Remove the harness retaining spring[1] from the hook[2], and free the harness[3] from the guide[A].
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Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Unit (MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-364 6)Remove the shaft retainer[1] 8) Remove the 6 screws (TP) [1] and the screw (with washer) [2]. F-4-1001 9)Remove the pickup unit[2] while opening the pickup tray[1] F-4-999 7)Face the front of the host machine downwards.
Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Tray Unit (MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-365 Removing the Pickup Tray Unit (MF4780w/MF4770n/ Note: MF4750/MF4730) The below picture shows how to wind the harness. ■ Preparation 1) Remove the left cover 2)Remove the SADF unit and reader unit.
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Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Tray Unit (MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-366 Caution: Caution: When assembling/disassembling the pickup tray unit, hold the pickup tray [1] down Align the 2 boss holes [1], 2 hooks [2] and 2 bosses [3] of the pickup tray unit with the to attach/release it.
Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Roller (MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-367 Removing the Pickup Roller (MF4780w/MF4770n/ MF4750/MF4730) Caution: ■ Preparation When assembling the pickup tray unit, check the positioning of the 6 bosses [1] in the unit.
Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Solenoid (MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-368 Removing the Pickup Solenoid (MF4780w/MF4770n/ MF4750/MF4730) ■ Preparation 1) Remove the left cover 2)Remove the SADF unit and reader unit. 3)Remove the right cover 4)Remove the front cover unit. 5)Remove the upper cover.
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Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Solenoid (MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-369 Caution: When connecting the terminal[1], be sure that the contact spring[2] is in contact with F-4-1008 2)Disconnect the terminal[1], free the harness[2] from the harness guide[A], and then put it F-4-1010 through the hole[B].
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Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Solenoid (MF4780w/MF4770n/MF4750/MF4730) > Procedure 4-370 4)Remove the harness retaining spring[1] and 4 connectors[2]. 6)Remove the screw[1], move the solenoid arm[2] and remove the pickup solenoid[3]. F-4-1014 F-4-1012 5)Free the pickup solenoid harness[1] from the harness guide[A] Caution: The below picture shows how to wind the harness.
Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Unit (MF4720w/MF4712/MF4710) > Procedure 4-371 Removing the Separation Pad (MF4780w/MF4770n/ Removing the Pickup Unit (MF4720w/MF4712/MF4710) MF4750/MF4730) ■ Preparation ■ Procedure 1) Remove the left cover 2)Remove the copyboard cover and reader unit. 3)Remove the right cover Caution: 4)Remove the front cover unit.
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Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Unit (MF4720w/MF4712/MF4710) > Procedure 4-372 2)Disconnect the terminal[1], free the harness[2] from the harness guide[A], and then put it 3)Remove the harness retaining spring[1] from the hook[2], and free the harness[3] from the through the hole[B].
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Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Unit (MF4720w/MF4712/MF4710) > Procedure 4-373 5)Remove the harness[1] from the guide[A] and [B]. 7)Face the front of the host machine downwards. F-4-1023 F-4-1021 8) Remove the 6 screws (TP) [1] and the screw (with washer) [2]. 6)Remove the shaft retainer[1] F-4-1024 F-4-1022...
Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Tray Unit (MF4720w/MF4712/MF4710) > Procedure 4-374 Removing the Pickup Tray Unit (MF4720w/MF4712/ 9)Remove the pickup unit[2] while opening the pickup tray[1] MF4710) ■ Preparation 1) Remove the left cover 2)Remove the copyboard cover and reader unit. 3)Remove the right cover 4)Remove the front cover unit.
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Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Tray Unit (MF4720w/MF4712/MF4710) > Procedure 4-375 Caution: Caution: When assembling/disassembling the pickup tray unit, hold the pickup tray [1] down Align the 2 boss holes [1], 2 hooks [2] and 2 bosses [3] of the pickup tray unit with the to attach/release it.
Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Roller (MF4720w/MF4712/MF4710) > Procedure 4-376 Removing the Pickup Roller (MF4720w/MF4712/ Caution: MF4710) When assembling the pickup tray unit, check the positioning of the 6 bosses [1] in the ■ Preparation unit.
Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Solenoid (MF4720w/MF4712/MF4710) > Procedure 4-377 Removing the Pickup Solenoid (MF4720w/MF4712/ MF4710) ■ Preparation 1) Remove the left cover 2)Remove the copyboard cover and reader unit. 3)Remove the right cover 4)Remove the front cover unit. 5)Remove the upper cover.
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Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Solenoid (MF4720w/MF4712/MF4710) > Procedure 4-378 2)Disconnect the terminal[1], free the harness[2] from the harness guide[A], and then put it 3)Remove the harness retaining spring[1] from the hook[2], and free the harness[3] from the through the hole[B].
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Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Solenoid (MF4720w/MF4712/MF4710) > Procedure 4-379 5)Free the pickup solenoid harness[1] from the harness guide[A] Caution: The below picture shows how to wind the harness. F-4-1035 6)Remove the screw[1], move the solenoid arm[2] and remove the pickup solenoid[3]. F-4-1036 4-379 Disassembly/Assembly >...
Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Unit (L418S/L410/L190) > Procedure 4-380 Removing the Separation Pad (MF4720w/MF4712/ Removing the Pickup Unit (L418S/L410/L190) MF4710) ■ Preparation ■ Procedure 1) Remove the left cover 2)Remove the DADF unit and reader unit. 3)Remove the right cover Caution: 4)Remove the front cover unit.
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Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Unit (L418S/L410/L190) > Procedure 4-381 2)Disconnect the terminal[1], free the harness[2] from the harness guide[A], and then put it 3)Remove the harness retaining spring[1] from the hook[2], and free the harness[3] from the through the hole[B].
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Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Unit (L418S/L410/L190) > Procedure 4-382 5)Remove the harness[1] from the guide[A] and [B]. 7)Face the front of the host machine downwards. F-4-1045 F-4-1043 8) Remove the 6 screws (TP) [1] and the screw (with washer) [2]. 6)Remove the shaft retainer[1] F-4-1046 F-4-1044...
Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Tray Unit (L418S/L410/L190) > Procedure 4-383 Removing the Pickup Tray Unit (L418S/L410/L190) 9)Remove the pickup unit[2] while opening the pickup tray[1] ■ Preparation 1) Remove the left cover 2)Remove the DADF unit and reader unit. 3)Remove the right cover 4)Remove the front cover unit.
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Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Tray Unit (L418S/L410/L190) > Procedure 4-384 Caution: Caution: When assembling/disassembling the pickup tray unit, hold the pickup tray [1] down Align the 2 boss holes [1], 2 hooks [2] and 2 bosses [3] of the pickup tray unit with the to attach/release it.
Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Roller (L418S/L410/L190) > Procedure 4-385 Removing the Pickup Roller (L418S/L410/L190) Caution: ■ Preparation When assembling the pickup tray unit, check the positioning of the 6 bosses [1] in the 1) Remove the left cover unit.
Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Solenoid (L418S/L410/L190) > Procedure 4-386 Removing the Pickup Solenoid (L418S/L410/L190) ■ Preparation 1) Remove the left cover 2)Remove the DADF unit and reader unit. 3)Remove the right cover 4)Remove the front cover unit. 5)Remove the upper cover.
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Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Solenoid (L418S/L410/L190) > Procedure 4-387 2)Disconnect the terminal[1], free the harness[2] from the harness guide[A], and then put it 3)Remove the harness retaining spring[1] from the hook[2], and free the harness[3] from the through the hole[B].
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Disassembly/Assembly > Pickup And Feeding System > Removing the Pickup Solenoid (L418S/L410/L190) > Procedure 4-388 5)Free the pickup solenoid harness[1] from the harness guide[A] Caution: The below picture shows how to wind the harness. F-4-1057 6)Remove the screw[1], move the solenoid arm[2] and remove the pickup solenoid[3]. F-4-1058 4-388 Disassembly/Assembly >...
Disassembly/Assembly > Pickup And Feeding System > Removing the Duplex Feed Unit (L418S/L410/L190) > Procedure 4-389 Removing the Separation Pad (L418S/L410/L190) Removing the Duplex Feed Unit (L418S/L410/L190) ■ Procedure ■ Preparation 1) Remove the left cover 2)Remove the DADF unit and reader unit. Caution: 3)Remove the right cover When assembling/disassembling the separation pad, do not touch the surface of...
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Disassembly/Assembly > Pickup And Feeding System > Removing the Duplex Feed Unit (L418S/L410/L190) > Procedure 4-390 2) Remove the 2 screws (TP) [1] and 2 screws (tapping) [2] using a stubby screwdriver. 5)Remove the duplex feed unit[1]. • 1 claw[2] •...
Disassembly/Assembly > Pickup And Feeding System > Removing the Duplex Solenoid (L418S/L410/L190) > Procedure 4-391 Removing the Duplex Solenoid (L418S/L410/L190) 2)Remove the scanner cover[1] • 2 screws(black TP)[2] ■ Preparation Caution: 1) Remove the left cover When removing the scanner cover, be sure that the cover does not get under[A] part 2)Remove the DADF unit and reader unit.
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Disassembly/Assembly > Pickup And Feeding System > Removing the Duplex Solenoid (L418S/L410/L190) > Procedure 4-392 Caution: Caution: When install the scanner cover, be careful not to damage the motor driver PCB[1] Ensure that the shutter open/close lever [1] can move vertically. and the duplex relay PCB[2] F-4-1068 F-4-1066...
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Disassembly/Assembly > Pickup And Feeding System > Removing the Duplex Solenoid (L418S/L410/L190) > Procedure 4-393 4)Remove the duplex solenoid[1]. F-4-1070 Caution: When mounting the duplex solenoid, align the solenoid lever [1] with the groove in the link [2], and insert the 2 solenoid positioning protrusions [3] into the 2 positioning holes [4] in the side panel to mount the solenoid.
Adjustment > Mechanical Adjustment > Confirming Nip Width Mechanical Adjustment Confirming Nip Width Caution : Be sure to follow the procedures below, otherwise the fixing film or the fixing sleeve Center may be damaged. Feed out direction A4-sized paper The nip width of the fixing unit is not adjustable in this printer, however, the incorrect nip width may cause the faulty fixing.
Troubleshooting > Test Print > Test Print Function Test Print Test Print Function This equipment has a test print function to check if the printer engine normally operates. Test patterns (horizontal lines) are output when executing this test print. The following is the operation procedure; a.1-sided print 1) Set A4/LTR papers on the pickup tray or the manual feed pickup tray.
Troubleshooting > Troubleshooting Items > Image Faults > Smudged/Streaked Troubleshooting Items Image sample Image Faults ■ Smudged/Streaked ● Bleeding (smear) occurs immediately after the power is turned on for the first time for the day Description There is sometimes a case where the difference of temperature between air and inside of the machine causes moisture to occur on the toner immediately after the power is turned on for the first time for the day.
Troubleshooting > Version Upgrade > Preparation > System Requirements Version Upgrade Preparation ■ System Requirements Overview • OS (one of the following) To upgrade versions, use the user support tool (hereinafter UST) and download firmware • Microsoft Windows 2000 Server/Professional from a personal computer (hereinafter PC) to this product.
Troubleshooting > Version Upgrade > Downloading System Software Downloading System Software ■ Preparation 1) Start the PC. 1) Open UST. 2) Connect the device to the PC with the USB cable. 3) Turn on the device on standby. 4) Press [Menu] key to upgrade firmware in User mode. System Settings >...
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Troubleshooting > Version Upgrade > Downloading System Software 4) Select [USB Device] and click [Next] button. 6) Click [Yes] button for the warning message to start download. F-6-9 F-6-10 F-6-7 7) Click [OK] button when download is completed. 5) Click [Start] button. F-6-11 8) Turn off and on the power to restart the device.
• Tool (CanonLogCollector_Ver1.0.0.6.zip)* file is "usb_2011901_132658.log" in the figure below.The capacity of the log file is 300 KB or *Obtain a tool according to instructions of Canon sales company HQ. less. The time needed to collect the log is approx.10 seconds.
Troubleshooting > Log Collector > OutLine > Troubleshooting ■ Troubleshooting The log data is not properly sent from the host machine to the PC when "Receiving log is finished. (Receivetimeout.)" was displayed after the [Start] button was pressed on the CanonLogCollector screen.
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Error Codes > Overview Overview This section describes codes shown in case any problem is occurred. Since this product does not collect logs for alarms, no alarm code is shown. Code type Description Reference Error code Shown for any problem occurred in the device. List of error codes Jam code Alarm code...
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Error Codes > Error Codes Error Codes Code Detection description Remedy When the same error repeatedly occurs after several times of turning the power OFF/ON, execute the Code Detection description Remedy following remedies. When the same error repeatedly occurs after several (1) Check that the heater resistance measured between times of turning the power OFF/ON, execute the 1PIN and 2PIN of the cable (J101) on the Main...
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Error Codes > Error Codes Code Detection description Remedy Code Detection description Remedy When the same error repeatedly occurs after several When the same error repeatedly occurs after several times of turning the power OFF/ON, execute the times of turning the power OFF/ON, execute the 0002 Language file error following remedies.
Service Mode > Overview > Service Mode Menu Overview Entering Service Mode. Contact the sales company for the method to enter service mode. Service Mode Menu Service mode Service mode for copier COPIER State display mode DISPLAY I/O display mode Adjustment mode ADJUST Operation / inspection mode...
Service Mode > COPIER > I/O > R-CON COPIER ■ R-CON DISPLAY COPIER>I/O>R-CON Address Contents of display ■ VERSION P001 Sensor state display (DES) COPIER>DISPLAY>VERSION Sensor state display (DS) Sub item Description T-8-3 MAIN Display version/checksum/date of Bootable (Product program area) ECONT Display ROM version of recording engine T-8-1...
Service Mode > COPIER > ADJUST > CCD ADJUST ■ CCD COPIER>ADJUST>CCD ■ ADJ-XY Common COPIER>ADJUST>ADJ-XY Sub item Description to all model Common models only Sub item Description to all model FBTAR-R Shading target value for RED in copyboard reading Setting range: 128 ~ 384 models only...
Service Mode > COPIER > FUNCTION > PARAM FUNCTION ■ MISC-P ● OUTPUT ■ CLEAR When outputting the report, place paper in the Pickup Cassette, and remove paper from the COPIER>FUNCTION>CLEAR Multi-purpose Tray. Network Common If paper is placed in the Multi-purpose Tray, the report is not output even if paper is placed in model and Sub item Description...
Service Mode > COPIER > OPTION > SERIAL OPTION ■ SPLMAN COPIER>FUNCTION>SPLMAN ■ BODY Common Double sided Sub item Description to all printing COPIER>OPTION>BODY models model only Sub item Description TOP-MPT Adjustment of leading edge margin when feeding from LOCALE To set country group.
Service Mode > COPIER > COUNTER > JAM COUNTER ■ PICK-UP COPIER>COUNTER>PICK-UP ■ TOTAL Display/ Setting/ Adjustment rage: 0 ~ 999,999 Return to 0 when exceeding 999,999. Common to Double sided COPIER>COUNTER>TOTAL Sub item Description all models printing model only Display/ Setting/ Adjustment rage: 0 ~ 999,999 Return to 0 when exceeding 999,999.
Service Mode > FEEDER > FUNCTION FEEDER ADJUST FEEDER>ADJUST Sub item Description ADF model only DOCST Adjustment of the page front reading position when using ADF(common in SADF model and DADF model) Setting range: -30 ~ 30 LA-SPD Adjustment of magnification ratio in vertical scanning direction in stream feeding Setting range: -200 ~ 200 T-8-19...
Service Mode > FAX > List of SSSW FAX>SSSW SSSW No. Bit No. Function SW 06 (Setting of reading criteria) List of SSSW Bit 0 Move from DES to pre-scan position Bit 1 Pre-scan at time other than power-ON • FAX model only Bit 2 Restrict document length Bit 3...
T-8-22 Bit 5 New dial tone detection method SW 31 Not in use SW 32 Bit 0 Canon/NTT NSX switching SW Bit 5 0:NCU2004 1:NCU2002 SW 33-SW 50 Not in use T-8-21 8-10 Service Mode > FAX > List of Menu...
Service Mode > FAX > List of NCU > TONE/PULSE 8-11 List of NUM List of NCU • FAX model only • FAX model only ■ TONE/PULSE Numeric parameter setting mode Parameter Allowable setting range (1)Setting of Tone Parameters Not in use While “#NCU”...
Service Mode > FAX > List of NCU > BUSY TONE1 8-12 (2) Numeric value parameter ■ BUSY TONE0 Parameter No. Function Setting range (1) Bit switch T0 timer 0 to 9999 (x10ms) Bit No. Function T1 timer 0 to 9999 (x10ms) Bit 0 T2 timer 0 to 9999 (x10ms)
Service Mode > FAX > List of NCU > RKEY 8-13 (2) Numeric value parameter ■ AUTO RX Parameter No. Function Setting range (1) Numeric value parameter Parameter No. Function Setting range T1 timer 0 to 9999 (x10ms) CI ON time 0 to 9999 (x10ms) T2 timer 0 to 9999 (x10ms)
Service Mode > FAX > List of NCU > PBX BUSY TONE 8-14 ■ PBX DIAL TONE (2) Numeric value parameter Parameter No. Function Setting range (1) Bit switch T0 timer 0 to 9999 (x10ms) Bit No. Function T1 timer 0 to 9999 (x10ms) Bit 0 Frequency detection method...
Service Mode > TESTMODE > SCAN > SENSOR 8-15 TESTMODE SCAN ■ ADJUST SYSTEM ● ADF-ADJ ■ DRAM TESTMODE>SCAN>ADJUST>ADF-ADJ Sub item Description ADF model only TESTMODE>SYSTEM>DRAM DF-SPEED Enter the adjustment value for the magnification ratio in vertical Sub item Description scanning direction in stream feeding TEST1 Data read/write check for DRAM (except system work area)
Service Mode > TESTMODE > FAX > MODEM 8-16 ■ ADFTEST TESTMODE>SCAN>ADFTEST ■ MODEM Single-sided Double-sided Sub item Description ADF model ADF model TESTMODE>FAX>MODEM SPEED For testing of ADF feeding speed. Execute Sub item Description FAX model only feeding test of ADF motor at specified speed. FREQ Transmit selected frequency in closed DC circuit using tone [Setting value]...
Service Mode > TESTMODE > NETWORK > SSSW 8-17 NETWORK ● RELAY-1 TESTMODE>FAX>MODEM>RELAY-1 ■ SSSW Sub item Description FAX model only Test ON/OFF of port SW and relay on NCU NETWORK>SSSW Setting value: ON, OFF Sub item Description Test ON/OFF of port SW and relay on NCU Setting value: ON, OFF T-8-49 ■...
Appendix ■ Service Tools ■ Solvent/Oil List ■ General Circuit Diagram ■ General Timing Chart...
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Appendix > Service Tools Service Tools The followings are the required tools to perform the service operation. Tool name Tool number Usage/remarks Tool case TKN-0001 Jumper wire TKN-0069 With clip Gap gauge CK-0057 0.02 to 0.03mm Spring scale CK-0058 To check cassette spring pressure Philips screwdriver CK-0101 M4, M5 Length: 363mm...
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Appendix > Solvent/Oil List Solvent/Oil List Name Usage Remarks Ethyl alcohol Cleaning • Local procurement e.g.) Metal parts • Keep fire away Grease Toner contamination Lubricant • Apply it on gears etc. • tool number: HY9-0007 • Apply it on shafts and shaft supports etc. (Dow Corning made Molykote EM-50L) T-9-2 Appendix >...
Appendix > General Timing Chart 9-11 General Timing Chart Print on A4 plain paper (2 pages) (Unit: second) Power-on (Unit:Seconds) WAIT STBY INTR PRINT LSTR STBY Sequence Controls at 80 C Print temperature control Fixing heater Relay Waiting for Print command Print command Print command a print command...