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Epson Stylus Color 640 Service Manual

Epson stylus color ink jet printer service manual
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Color ink jet printer
EPSON Stylus Color 440/640/740
®
4009667

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Summary of Contents for Epson Stylus Color 640

  • Page 1  Color ink jet printer EPSON Stylus Color 440/640/740 ® 4009667...
  • Page 2 All effort have been made to ensure the accuracy of the contents of this manual. However, should any errors be deteced, SEIKO EPSON would greatly appreciate being informed of them. The above not withstanding SEIKO EPSON CORPORATION can assume no responsibility for any errors in this manual or the consequences thereof.
  • Page 3 2. MAKE CERTAIN THAT THE SOURCE VOLTAGES IS THE SAME AS THE RATED VOLTAGE, LISTED ON THE SERIAL NUMBER/ RATING PLATE. IF THE EPSON PRODUCT HAS A PRIMARY AC RATING DIFFERENT FROM AVAILABLE POWER SOURCE, DO NOT CONNECT IT TO THE POWER SOURCE.
  • Page 4 Describes the step-by-step procedures for disassembling and assembling the product. CHAPTER 5. Provides Epson-approved methods for adjustment. CHAPTER 6. Provides preventive maintenance procedures and the lists of Epson-approved lubricants and adhesives required for servicing the product. APPENDIX Provides the following additional information for reference: •...
  • Page 5 Rev. Date 1998/07/15 1998/09/30 Page 188 Pages 195 to 212 REVISION STATUS Page(s) First Release The exploded diagrams and part list for the Stylus Color 740 has been added. Contents...

  • Page 6: Table Of Contents

    Input Data Buffer ... 24 Interface... 25 Parallel Interface (Forward Channel) ... 25 Parallel Interface (Reverse Channel) ... 27 Serial Interface (for Stylus Color 640, 740) ... 31 Control Panel... 32 Indicators (LEDs)... 32 Panel Functions... 33 Printer Condition and Panel Status ... 34 Error Status ...
  • Page 7 Disassembly Procedures... 104 Removing the Housing ... 105 Removing the Board Assembly ... 106 Removing the Operation Panel ... 108 Disassembling the Printer Mechanism ... 109 Adjustment Overview... 130 Required Adjustments ... 130 Adjustment Tools Required ... 131 Adjustment... 132 Parallelism Adjustment...

  • Page 8: Product Description

           PRODUCT DESCRIPTION...

  • Page 9: Features

    Also, Stylus Color 440 printer has the same high color print quality (720 X 720dpi) as Stylus ProXL, and Stylus Color 640,740 have the same high color print quality (1440 X 720) as Stylus Color 600 and Stylus Pro 5000. The major printer features are;...
  • Page 10 Black Ink Cartridge Black Ink Cartridge CMY Ink Cartridge CMY Ink Cartridge EPSON 360 dpi Ink Jet Paper EPSON 360 dpi Ink Jet Paper EPSON 360 dpi Ink Jet Paper Photo Quality Ink Jet Paper Photo Quality Ink Jet Paper...

  • Page 11: Specifications

    CMY head) Nozzle configuration Black 64 nozzles, CMY 21 nozzles (for Stylus Color 440) Black 64 nozzles, CMY 32/color nozzles (for Stylus Color 640) Black 144 nozzles, CMY 48/color nozzles (for Stylus Color 740) Print direction Bi-direction with logic seeking Print speed and Printable columns, character pitch and print quality Refer to Table 1-2 and Table 1-3.
  • Page 12 M 21 Figure 1-1. Nozzle Configuration for Stylus Color 440 Chapter 1 Product Description 180DPI 2.2578 mm 2.2578 mm (B2) (B1) Figure 1-2. Nozzle Configuration for Stylus Color 640 90DPI 10.16 mm 2.2578 mm 7.9022 mm (B2) Revision A 180DPI (B1)
  • Page 13 EPSON Stylus Color 440/640/740 32/360" 32/360" 112/360" 112/360" #139 #142 (B1) Figure 1-3. Nozzle Configuration for Stylus Color 740 Chapter 1 Product Description Feeding method Friction feed with ASF 32/360" Line spacing 1/6 inches or programmable at 1/360 inches (only for Stylus...
  • Page 14 EPSON Roman T 10.5pt., 8pt. to 32 pt. (every 2 pt. unit) EPSON Sans Serif H 10.5pt., 8pt. to 32 pt. (every 2 pt. unit) NOTE: The above typeface has 4 variations individually as follows; EPSON Roman, EOSON Roman bold...

  • Page 15: Paper Specification

    EPSON Stylus Color 440/640/740 1.2.2 Paper Specification This section describes the printable area and types of paper that can be used in this printer. 1.2.2.1 Cut Sheet [Size] [Width 210mm (8.3”) x Length 297mm (11.7”)] Letter: [Width 216mm (8.5”) x Length 279mm (11.0”)] [Width 182mm (7.2”) x Length 257mm (10.1”)]...
  • Page 16 EPSON Stylus Color 440/640/740 1.2.2.4 Index Card [Size] A6 Index card: Width 105mm (4.1”) x Length 148mm (5.8”) A5 Index card: Width 148mm (5.8”) x Length 210mm (8.3”) 5x8” Index card: Width 127mm (5.0” x Length 203mm (8.0”) 10x8” Index card: Width 127mm (5.0”) x Length 203mm (8.0”)

  • Page 17: Printing Area

    EPSON Stylus Color 440/640/740 1.2.3 Printing Area [Cut Sheet] See Figure 1-4 in the right column and the tables in the following page for the printable areas for Raster Graphics mode and Character mode. NOTE: Character mode is only suitable for Stylus Color 740.
  • Page 18 EPSON Stylus Color 440/640/740 Paper Size 210 mm (8.3”) Letter 216 mm (8.5”) 182 mm (7.2”) Legal 216 mm (8.5”) Statement 139.7 mm (5.5”) Exclusive 190.5 mm (7.5”) Paper Size 210mm (8.3”) Letter 216mm (8.5”) 182mm (7.2”) Legal 216mm (8.5”) Statement 139.7mm (5.5”)
  • Page 19 The adjustment lever located on the right side (dark blue) under the printer cover needs to be set to the proper position according to the paper you print. (Refer to the Table 1-7.) Also, if there is any dirt caused BM/min.

  • Page 20: Ink Cartridge Specifications

    EPSON Stylus Color 440/640/740 1.2.4 Ink Cartridge Specifications [Black Ink Cartridge] Table 1-8. Black Cartridge Specifications Items Specifications Type Exclusive Cartridge for Stylus Color 440, 640 Exclusive Cartridge only for Stylus Color 740 Color Black Print Capacity <Stylus Color 440,640>...
  • Page 21 EPSON Stylus Color 440/640/740 [Color Ink Cartridge] Table 1-9. Color I/C Specifications Items Specifications Type Exclusive Cartridge for Stylus Color 440, 640, 740 Color Print Capacity 300 pages / A4 (360 dpi, 5% duty each colors) Validity 2 years (sealed in package) / 6 months (out of package) Environmental •...

  • Page 22: Environmental Condition

    EPSON Stylus Color 440/640/740 1.2.5 Environmental Condition Temperature Operating :10 to 35 C (Refer to Figure 1-8 for condition) Non-operating:-20 to 60 C (with shipment container) NOTE: 1 month at 40 C and 120 hours at 60 C Humidity Operating:...

  • Page 23: Electric Specification

    EPSON Stylus Color 440/640/740 1.2.6 Electric Specification [120V version] [Rated voltage] AC120V [Input voltage range] AC99 132V [Rated frequency range] 50 60Hz [Input frequency range] 49.5 60.5Hz [Rated current 0.4A (Max. 0.5A) [Power consumption] Approx.15W (ISO/IEC 10561 Letter pattern) Energy Star compliant [Insulation Resistance] 10M ohms min.

  • Page 24: Acoustic Noise

    EMC Directive 89/336/EEC :EN55022 Class B :EN61000-3-2 :EN61000-3-3 :EN50082-1 1.2.11 Input Data Buffer 10 K byte (for Stylus Color 440) 32 K byte (for Stylus Color 640) 64 K byte (for Stylus Color 740) Chapter 1 Product Description :IEC801-2 :IEC801-3 :IEC801-4...

  • Page 25: Interface

    During -INIT signal is at low level or during hardware initialization During printer error (See /ERROR signal) /ERROR signal is at low level when the printer is in one of the following states. Printer hardware error (fatal error) Paper-out error...
  • Page 26 EPSON Stylus Color 440/640/740 Pin No. 16,33, 19-30 15,34 Note) In and Out refer to the direction of signal flow from the printer’s point of view. Chapter 1 Product Description Table 1-10. Parallel I/F Forward Channel Signal Return In/Out Functional Description...

  • Page 27: Parallel Interface (Reverse Channel)

    04H: Request device ID; Return Data using Nibble Mode Rev Channel Transfer. Chapter 1 Product Description NOTE: The printer sends following device ID string when it is requested. Table 1-11. Details of Device ID EPSON; ESCPL2,BDC; Stylus[SP]Color[SP] 440; Stylus[SP]Color[SP] 640;...
  • Page 28 /DataAvail, DataBit-0,4 1284-Active Logic-H Chassis GND 16,33, 9-30 15,34 Note) In/Out refers to the direction of signal flow from the printer’s point of view. Chapter 1 Product Description Table 1-12. Parallel I/F Reverse Channel Return GND In/Out Host clock signal.
  • Page 29 GND (16,33, 19-30 pin) for twist pair return. Also, these cables are shielded wires and it is effective to connect to each chassis GND in the PC and printer for electrostatic noise. NOTE 2:Conditions for Interface are based on TTL level. Rise and fall time should be within 0.2 s.
  • Page 30 0.8V 0.32mA NOTE: A low logic level on the Logic H signal is 2.0V or less when the printer is powered off and this signal is equal or exceeding 3.0V when the printer is powered on. The receiver shall provide an impedance equivalent to 7.5K ohm to ground.

  • Page 31: Serial Interface (For Stylus Color 640, 740)

    EPSON Stylus Color 440/640/740 1.3.3 Serial Interface (for Stylus Color 640, 740) [Standard] Based on RS-423 [Synchronization] Synchronous [Bit Rate] Approx.1800Kbps [Handshaking] X-ON/X-OFF, DTR Protocol [Word Format] Data Bit= 8 bits Parity Bit= None Start Bit= 1 bit Stop Bit= 1 bit...

  • Page 32: Control Panel

    1.4 Control Panel Since Stylus Color 440, 640, 740 does not require many buttons since printer driver can start various settings and motions. Therefore, there are only 2 non-lock type push switches, 1 lock type push switch and 4 LEDs. Figure 1-11 shows control panel of Stylus Color 440/640/740.

  • Page 33: Panel Functions

    EPSON Stylus Color 440/640/740 1.4.2 Panel Functions Refer to Table 1-19 to Table 1-21. Table 1-19. Panel Functions Switch Function 1. Loads or ejects a paper. Load/Eject 2. When the carriage is on the I/C replacement position, return (within 2 sec.) the carriage to the capping position.

  • Page 34: Printer Condition And Panel Status

    EPSON Stylus Color 440/640/740 1.4.3 Printer Condition and Panel Status Table 1-22 shows printer condition and panel status. Since the table shows various error status and also indicates printer status, it enables you to find appropriate repair ways. Printer Status...

  • Page 35: Error Status

    1.5.1 Ink Out When the printer runs out the most part of the ink of any one color, it warns ink-low and keeps printing. When the printer runs out the whole ink of any one color, it stops printing and indicates ink-out error. User is requested to install a new ink-cartridge in this state.

  • Page 36: No Ink-Cartridge

    Following reasons can be the causes when printer goes this error mode. 1. When the printer is turned on for the first time. (This is a normal error state and it returns to the normal state after installing an ink cartridge according to the ink cartridge exchange operation.)

  • Page 37: Printer Initialization

    Stylus Color 440, 640, 740 have three kinds of initialization methods. Following explains each initialization. [1.Power-on initialization] This printer is initialized when turning the printer power on, or printer recognized the cold-reset command (remote RS command). When printer is initialized, following action is performed.

  • Page 38: Main Components

    Product Description 1.8.1 Printer Mechanism Like the previous printer mechanism such as for Stylus Color 400, 600, and Stylus Photo, one of the major characteristics of Stylus Color 440, 640, 740 is that the printers have no Engage/Disengage mechanism to change between the pump mechanism and paper feeding mechanism.

  • Page 39: C206 Main-B Board (Stylus Color 440)

    Figure 1-12. C206 Main-B Major Electric Elements Chapter 1 Product Description 1.8.3 C256 Main Board (Stylus Color 640) C256 Main board controls Stylus Color 640 and consists of following major electric elements. Figure 1-13. C256 Main Board Major Electric Elements Revision A...

  • Page 40: C257 Main Board (Stylus Color 740)

    EPSON Stylus Color 440/640/740 1.8.4 C257 Main Board (Stylus Color 740) C257 Main board controls Stylus Color 640 and consists of following major electric elements. Figure 1-14. C257 Main Board Major Electric Elements Chapter 1 Product Description 1.8.5 Power Supply Board...

  • Page 41: C206 Pnl Board (Stylus Color 440, 640)

    1.8.6 C206 PNL Board (Stylus Color 440, 640) Panel board (C206 PNL board) is located in the panel case where is in the right bottom of the front printer and consists of 3 switches, 4 LEDs and 1 connector. LED0...

  • Page 42: Operating Principles

           OPERATING PRINCIPLES...

  • Page 43: Overview

    Electronic Boards for Stylus Color 440 are; Main: C206 Main-B, C255 Main Board Power Supply: C206 PSB,PSE Board Panel: C206 PNL Board Electronic Boards for Stylus Color 640 are; Main: C256 Main Board Power Supply: C206 PSB,PSE Board Panel: C206 PNL Board Electronic Boards for Stylus Color 740 are;...

  • Page 44: Printer Mechanism

    CMY Nozzle: 48 nozzles/colors(120 dpi x 1 row) Among these printers, the Stylus Color 640 and 740 can print 1440 (H) x 720(V) resolution like Stylus Color 800 and Pro5000. On the other hand, the Stylus Color 440 can print real 720 dpi(720 (H) x 720(V)) resolution like Stylus Pro XL.
  • Page 45 “cavity” until PZT is driven. Nozzle Plate The board with nozzle holes on the printer head surface is called Nozzle Plate. Filter When the ink cartridge is installed, if any dirt or dust around the...
  • Page 46 EPSON Stylus Color 440/640/740 2.1.1.2 Printing Process Following figures show the sectional drawings of normal state and ejecting state of the printhead. 1. Normal State: When the print signal is not output, PTZ also does not move in the waiting state (normal state). (Refer to Figure 2-3.) 2.
  • Page 47 EPSON Stylus Color 440/640/740 2.1.1.3 Carriage Mechanism Carriage mechanism is to drive the carriage with print head mounted from left to right or vice versa. The carriage drive motor in these printers are a 4-phase, 200-pole, stepping motor and is driven by 1-2 phase, 2-2...
  • Page 48 Carriage lock mechanism is to prevent the carriage from being left at an uncapped position for a long time because of vibration during the printer Carriage Motor transport or mishandling by the users. If the carriage is left uncapped for long time, ink on the print head surface gradually becomes thick.
  • Page 49 Operating Principles 2.1.1.4 Paper Feed Mechanism and Pump Mechanism Mechanisms that send the paper in the hopper to inside the printer and perform constant paper feed in order to perform printing on the sent paper are called paper feed mechanism as generic name. In the Stylus...
  • Page 50 EPSON Stylus Color 440/640/740 Papers on the ASF (auto-sheet-feeder) supplied by the user are carried to the printer inside by paper pick up sequence. Unlike the previous models, ASF of Stylus Color 440/640/740 has mufti feed prevention mechanism. Following explains this function and figure below shows its mechanism.
  • Page 51 [3. Paper feed mechanism] After papers in the ASF receive controls from pick up and multi feed prevention mechanism, they are sent to the printer inside. The papers picked up by paper roller in the ASF goes to between platen and roller support.
  • Page 52 4)waste ink absorber and 5)ink sequence. Out of these mechanism, from 1) to 4) are physical mechanism and parts which are mounted on the printer mechanism and 5) ink sequence is performed automatically by firmware. Also, unlike...
  • Page 53 EPSON Stylus Color 440/640/740 2.1.1.6 Pump, Carriage Lock, Head Cleaner Mechanism In the Stylus Color 440/640/740, there is no switch or mechanism to change over the pump/paper feed mechanism. Therefore, whenever the paper feed/pump motor rotate, pump drive roller in the pump unit inside rotates.
  • Page 54 EPSON Stylus Color 440/640/740 The table below shows PF/Pump motor rotational direction and pump system operation. Table 2-7. Relationship between Pump Motor Rotation and it’s Work PF/Pump motor rotational direction Clockwise (CW) 1)Release from the Pump pressure welding forward rotation...
  • Page 55 EPSON Stylus Color 440/640/740 2.1.1.6.1 Cap Mechanism In the cap mechanism, in order to prevent ink from being thickened on the head surface, it is controlled that the head surface stays adherent to the rubber frame of the cap surface when the power is off. The absorber is spread in the cap and can hold a certain amount of ink which is absorbed from the head without draining it to the waste ink pad.

  • Page 56: Electrical Circuit Operating Principles

    Electronic Boards for Stylus Color 440 are; Main: C206 Main-B, C255 Main Board Power Supply: C206 PSB,PSE Board Panel: C206 PNL Board Electronic Boards for Stylus Color 640 are; Main: C256 Main, Main Board Power Supply: C206 PSB,PSE Board Panel: C206 PNL Board Electronic Boards for Stylus Color 740 are;...

  • Page 57: C206 Psb/Pse And C257 Psb/Pse Power Supply Board (For Stylus Color 440, 640, 740)

    2. If the switch is turned off when the papers in the printer are still being carried except for the papers in the hopper, the same operation mentioned above is performed and the driving power is turned off after the paper is completely ejected.
  • Page 58 The C206 PSB/PSE board has various control circuits to stop output if malfunction on the power supply board, on the main board or on the duty of printer mechanism happen. Following explains each control and protection circuits. +42V Line Constant Voltage Control Circuit: The output level of the +42V line is monitored by a detection circuit consisting of seven Zener diodes.
  • Page 59 Q84 on for a while. By this electrolytic capacitor, output is hold at least 30 seconds even after the power is turned off. This time helps the printer to complete the P-Off operation. Chapter 2...

  • Page 60: C206 Main-B, C255 Main (For Stylus Color 440)

    2.2.2 C206 Main-B, C255 Main (for Stylus Color 440) Various DC voltage generated on the C206 PSB/PSE board is added various signals in order to drive the printer function on the C206 main-B, C255 main, board the drive of CR/PF (Pump) motor and printing head is performed.
  • Page 61 EPSON Stylus Color 440/640/740 [CPU] The 16-bit CPU which is mounted on Stylus Color 440 is running at 25Mhz. Gate array manages most of controls and monitors. Likewise the Stylus Color, the D-RAM is applied for RAM which is used as work area for receiving data and developing the data and CPU manages its control such as CE, RAS/CAS controls.

  • Page 62: C256 Main (For Stylus Color 640)

    Data EEPROM Reset IC (IC11) (IC9) E05B43 (IC2) Address Data CN11 Transceiver (IC16) PE Sensor Figure 2-18. C256 Main Board Block for Stylus Color 640 CR Motor Q7&Q9 PF Motor CN1 Parallel Common Driver (IC7) Motor Motor Driver Driver (IC15)
  • Page 63 EPSON Stylus Color 440/640/740 [CPU] The 16-bit CPU which is mounted on Stylus Color 640 is running at 25Mhz. Gate array manages most of controls and monitors. Likewise the Stylus Color, the D-RAM is applied for RAM which is used as work area for receiving data and developing the data and CPU manages its control such as CE, RAS/CAS controls.

  • Page 64: C257 Main, (For Stylus Color 740)

    2.2.4 C257 Main, (for Stylus Color 740) Various DC voltage generated on the C257 PSB/PSE board is added various signals in order to drive the printer function on the C257 main board the drive of CR/PF (Pump) motor and printing head is performed.
  • Page 65 EPSON Stylus Color 440/640/740 [CPU] The 16-bit CPU which is mounted on Stylus Color 740 is running at 24Mhz. Gate array manages most of controls and monitors. Likewise the Stylus Color, the D-RAM is applied for RAM which is used as work area for receiving data and developing the data and CPU manages its control such as CE, RAS/CAS controls.
  • Page 66 ON/OFF operation. And reset IC(IC9) monitors level of power voltage at the over loading or malfunction on the circuit and manages the printer to operate normally, keeping the damage to the printer minimum during the abnormal situations.
  • Page 67 On the C256 main board. Chapter 2 Operating Principles PST592D (IC8) Vout NRES Not mounted TMP95C061 (IC1) /RESET /NMI +42V M62030 (IC9) Figure 2-21. Reset Circuit for Stylus Color 640 Revision A R138 E05B43 (IC2) /RESET...
  • Page 68 (Refer to section 2.1.1.3 for detail.) PE Sensor (Photo): A PE sensor determines if there is paper in the printer. Based on the signal form this sensor, a particular paper edge treatment such as Micro-weave printing is performed.
  • Page 69 Figure 2-23. Figure 5-23. Sensor Circuit for Stylus Color 440 Chapter 2 Operating Principles IC 2 E05B43 E05B44 (IC2) Figure 2-24. Figure 5-24. Sensor Circuit for Stylus Color 640 IC 2 E05B588 Figure 2-25. Sensor Circuit for Stylus Color 740 SWA0 SWA1 SWA2...
  • Page 70 Data reading line (serial data) at power on. AT93C46 (IC11) Figure 2-26. EEPROM Control Circuit for Stylus Color 440 Chapter 2 Operating Principles Figure 2-27. EEPROM Control Circuit Stylus Color 640 E05B44 (IC2) Figure 2-28. EEPROM Control Circuit for Stylus Color 740 E05B43 AT93C46...
  • Page 71 (IC2) TCLK Batt1 TDATA Figure 2-29. Timer Control Circuit for Stylus Color 440 Chapter 2 Operating Principles Figure 2-30. Timer Counter Circuit for Stylus Color 640 Figure 2-31. Timer Counter Circuit for Stylus Color 740 S-3510ANF (IC10) /SCK /SIO 0.1u...
  • Page 72 2dot.Normal-dot-2dot was called Dual Firing in the Stylus Color IIs/820. These setting/change are controlled automatically by setting of the printer driver that is determined by the user. The followings are required conditions to perform the normal-dot 2-dot. At the OHP, Normal sheet setting (360X360 dpi) At the ordinary paper and resolution 360X360 dpi setting The control circuit is considered as 2 divided parts;...
  • Page 73 EPSON Stylus Color 440/640/740 E05B44(IC2) TMP95C061(IC1) Chapter 2 Operating Principles H8D2813(IC6) XOVM Data /STB /CLR VHCTL VHCTL BIEN BHSO YCMIEN Data YCMHSO /STB ICLK /CLR BCHCLK /NCHG Figure 2-32. Head Drive Circuit for Stylus Color 440 Revision A GND2 GND2...
  • Page 74 EPSON Stylus Color 440/640/740 Chapter 2 Operating Principles H8D2813(IC7) XOVM Data /STB /CLR E05B43(IC2) VHCTL VHCTL HSOIEN HSO1 Data HSO2 /STB HSO3 /CLR ICLK HCLK /NCHG TMP95C061(IC1) Figure 2-33. Head Driver Circuit for Stylus Color 640 GND2 GND2 GND2 NCHG Revision A...
  • Page 75 This common voltage trapezoidal wave form can be observed anytime after the +5V rises even if there is printing data or not. (Q7:3-pin,Q9:3- pin for Stylus Color 440 and Q2: 3-pin, Q3: 3-pin for Stylus Color 640, 740) [Nozzle Selector Drive Circuit]...
  • Page 76 Figure 2-35. PF (Pump) Motor Drive Circuit for Stylus Color 440 UDN2917 E05B43 (IC15) (IC2) PFA0 Out1A PFA1 Out1B PFA0 Out2A PFB1 Out2B PFB2 PFAPH PFV0 PFV1 PFV2 Vref1 PFV3 Vref2 Figure 2-36. PF (Pump) Motor Drive Circuit for Stylus Color 640 Revision A Rotor Rotor...
  • Page 77 EPSON Stylus Color 440/640/740 C90A05 (IC1) Figure 2-37. PF (Pump) Motor Drive Circuit for Stylus Color 740 Chapter 2 Operating Principles PFIA0 PFIA1 PFIA2 PFPHAA PFIB0 PFIB1 PFIB2 PFPHAB E05B588(IC2) Current Detection M6252(IC16) Rotor A3956(IC13) OUTA OUTB PHASE A3956(IC13) OUTA...
  • Page 78 EPSON Stylus Color 440/640/740 2.2.4.8 CR Motor Drive Circuit IC14(LB1845) on C206 Main-B, C255 Main board, IC14(UDN2917) on C256 Main board, and IC11(LB1847) on C257 Main board are used for driving CR motor. In the IC, Bi-pola drive PWM current control type is performed, making it possible to provide stable current to each phase of motor.
  • Page 79 CRA1 CRA0 CRB1 CRAPH CRBPH MTBV0 MTBV1 MTBV2 MTBV3 MTBV4 MTAV0 MABV1 MTAV2 MTAV3 MTAV4 Figure 2-39. Carriage Motor Drive Circuit for Stylus Color 640 Chapter 2 Operating Principles UDN2917 (IC15) Out1A Out1B Out2A Out2B Vref1 Vref2 Revision A Rotor...
  • Page 80 EPSON Stylus Color 440/640/740 C90A05 (IC1) Figure 2-40. Carriage Motor Drive Circuit for Stylus Color 740 Chapter 2 Operating Principles E05B588(IC2) CRIA0 CRIA1 CRIA2 CRIA3 CRIB0 CRIB1 CRIB2 CRIB3 CRPHAA CRPHAB CRENBA CRENBB Current Detection M6252(IC15) Rotor LB1847(IC11) OUTA OUTA-...
  • Page 81        TROUBLESHOOTING...

  • Page 82: Troubleshooting

    EPSON Stylus Color 440/640/740 3.1 Troubleshooting The printer may exhibit different symptoms for the same problem, which makes troubleshooting more difficult. This section, however, provides simple and effective ways to facilitate troubleshooting. The following flowchart illustrates the main steps of the trouble shooting process.
  • Page 83 EPSON Stylus Color 440/640/740 Sensor Name Paper End Senior Carriage Home Position Sensor ASF Phase Sensor Black Cartridge Sensor Color Cartridge Sensor Thermistor Chapter 3 Troubleshooting Table 3-2. Sensor Check Location Signal Level • Stylus Color 440/640 Open: less than 0.7 V CN4/Pins 1 &...
  • Page 84 EPSON Stylus Color 440/640/740 Error Status Paper Out Paper jam condition No Ink cartridge or Ink end (black) No Ink cartridge or Ink end (color) Maintenance request Fatal error Chapter 3 Troubleshooting Table 3-3. Printer Condition and Panel Status Indicators...

  • Page 85: Unit Level Troubleshooting

    EPSON Stylus Color 440/640/740 3.2 Unit Level Troubleshooting When a problem occurs, you can identify the defective unit according to the symptoms exhibits. The table below lists the symptoms of certain problems. Once the problem is identified, refer to the flowchart that corresponds to the problem.

  • Page 86: Error Is Detected

    EPSON Stylus Color 440/640/740 3.2.2 Error is detected START Check the error message.(Refer to Table 3-3) Turn off the printer, Is it a carriage and move the carriage error? by hand. Replace the ink- Is it an ink cartridge with a cartridge new one.

  • Page 87: Printer Does Not Feed Paper Correctly

    EPSON Stylus Color 440/640/740 3.2.4 Printer does not feed paper correctly. START paper set in the ASF correctly? Set the paper correctly the PF roller and platen rotate? Is the PF motor running? Remove any obstruction in the paper path if there is any.

  • Page 88: Unit Repair Of Power Supply Board

    EPSON Stylus Color 440/640/740 3.3 Unit Repair of Power Supply Board Note: The power supply board equipped with each printer is as follows: S tylus Color 440: C206 PSB/PSE Stylus Color 640: C206 PSB/PSE Stylus Color 740: C257 PSB/PSE This section describes the problems related to the power supply board.
  • Page 89 EPSON Stylus Color 440/640/740 Symptom Condition The printer does +42V line is dead. not operate at all. Chapter 3 Troubleshooting Table 3-5. Repair of the C206/C257 PSB/PSE Board Cause Checkpoint F1 is open. Check F1 by using a tester. Transformer coils are open. Check the waveform at the drain of Q1.
  • Page 90 EPSON Stylus Color 440/640/740 Symptom Condition (Continued) +5V line is dead. The printer does not operate at all. Chapter 3 Troubleshooting Table 3-5. Repair of the C206/C257 PSB/PSE Board Cause Checkpoint IC51 (L4962E/FA3635P) is Stylus Color 440/640: dead. • Check the oscillation...

  • Page 91: Unit Repair Of The Main Board

    EPSON Stylus Color 440/640/740 3.4 Unit Repair of the Main Board Note: The Main board equipped with each printer is as follows: Stylus Color 440: C206MAIN-B, C255MAIN Stylus Color 640: C256MAIN Stylus Color 740: C257MAIN This section describes the problems related to the main controller board.
  • Page 92 EPSON Stylus Color 440/640/740 Symptoms Condition The printer does not CPU does not operate. operate at all. (Continues to the next (Continues to the next page.) page.) Chapter 3 Troubleshooting Table 3-6. Unit Repair of Main Board Cause Check Point...
  • Page 93 EPSON Stylus Color 440/640/740 Symptoms Condition (Continued) (Continued) The printer does not CPU does not operate. operate at all. The carriage does not Carriage motor does not operate normally. operate at all or it occurs a abnormal noise. (Continues to the next (Continues to the next page.)
  • Page 94 EPSON Stylus Color 440/640/740 Symptoms Condition (Continued) (Continued) The carriage does not Carriage motor does not operate normally. operate at all or it occurs a abnormal noise. Printing is abnormal. Printing is not execute. Chapter 3 Troubleshooting Table 3-6. Unit Repair of Main Board...
  • Page 95 EPSON Stylus Color 440/640/740 Symptoms Condition Paper feed operation is Paper feed motor does not abnormal. work. Chapter 3 Troubleshooting Table 3-6. Unit Repair of Main Board Cause Check Point IC2 is dead. Stylus Color 440: Check the waveform at 25, 18 pin of IC14.

  • Page 96: Repair Of The Printer Mechanism

    EPSON Stylus Color 440/640/740 3.5 Repair of the Printer Mechanism This section provides instruction for repairing the printer mechanism. It describes various problems, symptom, likely causes, checkpoints, and solutions. Select appropriate symptom from the table and check each parts and its function as described in the checkpoint.
  • Page 97 EPSON Stylus Color 440/640/740 Symptom Condition Abnormal printing Only a particular dot causes abnormal printing. A dot is not printed occasionally. Black specks or dots. A vertical line is not aligned. White line appears in the image data. Chapter 3 Troubleshooting Table 3-7.
  • Page 98 EPSON Stylus Color 440/640/740 Symptom Condition Abnormal paper Paper is not fed. feeding. Printer stops during Fatal error appears. initialization. Chapter 3 Troubleshooting Table 3-7. Repair of the Printer Mechanism Cause Check Point Friction of the PF roller. Check if the PF roller rotates when paper is not fed.

  • Page 99: Disassembly And Assembly

           DISASSEMBLY AND ASSEMBLY...

  • Page 100: Overview

    EPSON Stylus Color 440/640/740 4.1 Overview This chapter describes procedures for disassembling the main components of EPSON Stylus Color 440/640/740. Unless otherwise specified, disassembly units or components can be reassembled by reversing the disassembly procedure. Therefore, no assembly procedures are included in this chapter. Precautions for any disassembly or assembly procedure are described under the heading “CHECK POINT”.

  • Page 101: Tools

    Chapter 4 Disassembly and Assembly 4.1.2 Tools Table 4-1 lists the tools recommended for disassembling, assembling, or adjusting the printer. Use only tools that meet these specifications. Table 4-1. Tool List Commercially Tools Available (+) Driver No.2 O.K.

  • Page 102: Specification For Screws

    EPSON Stylus Color 440/640/740 4.1.3 Specification for Screws Table 4-2 shows screw specifications. During assembly and disassembly, make sure that the specified types of screws are used at proper locations, referring to the table below. Note that the screw numbers described in the manual correspond to the numbers in the table.

  • Page 103: Service Checks After Repair

    EPSON Stylus Color 440/640/740 4.1.4 Service Checks After Repair Before returning the printer after servicing, use the check list below, which enables you to keep record of servicing and shipping more efficiently. Category Component Printer units Self-test On-line test Print head...

  • Page 104: Disassembly Procedures

    EPSON Stylus Color 440/640/740 4.2 Disassembly Procedures The flowchart below shows procedures for disassembly. Remove the Housing Refer to 3.2.1 Remove the Remove the Board Assembly Printer Mechanism 3.2.2 3.2.4 Remove the operation panel 3.2.3 Remove Remove the Pump Remove...

  • Page 105: Removing The Housing

    Since the printer mechanism itself structures the bottom part, the printer mechanism appears just by removing the housing. 1. Open the printer cover and turn the PG adjustment lever towards (+) side. 2. Remove 4 screws (No.2) securing the housing, and remove the housing.

  • Page 106: Removing The Board Assembly

    NOTE: The main board and power supply board equipped with each printer are as follows - S tylus Color 440:C206MAIN-B, C255 Main, C206PSB/PSE - Stylus Color 640:C256MAIN, C206PSB/PSE - Stylus Color 740:C257MAIN, C257PSB/PSE 1. Remove the housing.(Refer to 3.2.2) 2. Remove the 5 screws(No.1) securing the “M/B Shield plate” on the printer mechanism.
  • Page 107 EPSON Stylus Color 440/640/740 Revision A (No.1) Main Board (No.1) [Cable Holder A and B] Power Supply Board (No.6) M/B Shield plate (No.1) (No.1) M/B Shield Plate (No.1) Figure 4-3. Removing the M/B Shield Plate Figure 4-4. Removing the Boards...

  • Page 108: Removing The Operation Panel

    EPSON Stylus Color 440/640/740 4.2.3 Removing the Operation Panel The panel board equipped with each printer is as follows: - Stylus Color 440/640: C206PNL - Stylus Color 740: C209PNL 1. Remove the housing. (Refer to Section 4.2.1.) 2. Remove two screws (No.1) securing the operation panel and disconnect the operation panel from the printer mechanism.

  • Page 109: Disassembling The Printer Mechanism

    When you return the printer to the user, be sure to pack the printer for transportation with a new ink cartridge installed and the carriage in the home position when the printer is turned on.
  • Page 110 EPSON Stylus Color 440/640/740 Revision A Figure 4-6. Removing the Print Head Chapter 4 Disassembly and Assembly...
  • Page 111 Carriage Assembly Print Head Nozzle Selector; Nozzle Selector has been enclosed into head. Stylus Color 440: 1 piece Stylus Color 740 Stylus Color 640: 2 pieces Figure 4-7. Installing the Printhead Revision A...
  • Page 112 3. Remove one screw (No.4) securing “Absorber tray assembly” located on the right side of the printer mechanism. 4. On the right side of the printer mechanism, release the hook securing the “Absorber tray assembly ;A” to the frame and remove it, pulling it downward.
  • Page 113 5. Raise the printer mechanism toward ASF side so that you can see the bottom of the printer mechanism. 6. On the right side of frame, remove the hook holding the cap...
  • Page 114 EPSON Stylus Color 440/640/740 (No.5) Chapter 4 Disassembly and Assembly Loosen screws on the right and left sides and float the Paper eject frame assembly. Pump Assembly Release a hook from the back of the printer mechanism and remove two protrusions from the subframe.
  • Page 115 EPSON Stylus Color 440/640/740 Head Cleaner Order of assembling the pump parts. Figure 4-10. Component of Pump Assembly Chapter 4 Disassembly and Assembly Revision A...
  • Page 116 EPSON Stylus Color 440/640/740 4.2.4.4 Removing the CR Motor Assembly 1. Remove the housing. (Refer to Section 4.2.1) 2. Rotate the gear 67.2 toward you and release the carriage lock mechanism, then move the carriage to the center. 3. Loosen the timing belt by pushing the driven pulley holder and remove the timing belt from the pulley on the CR motor.
  • Page 117 1. Remove the housing.(Refer to Section 4.2.1.) 2. Remove the absorber tray assembly ;A. (Refer to Section 4.2.4.2.) 3. Remove the following gears located on the left side of the printer mechanism. Gear 67.2 (Remove the ring with tweezers or a (-) driver. After the ring is removed, if you try to remove the gear 67.2 by holding...
  • Page 118 EPSON Stylus Color 440/640/740 [For Stylus Color 440, 640] 1. Remove the housing. (Refer to Section 4.2.1.) 2. Remove the absorber tray assembly ;A. (Refer to Section 4.2.4.2.) 3. Remove the 2 screws securing the PF motor assembly. to the frame.
  • Page 119 4.2.4.6 Removing the ASF Assembly 1. Remove the housing. (Refer to Section 4.2.1.) 2. Release the fixed hook from the inside of the printer mechanism and remove the gear 34 from the roller shaft in the ASF assembly. 3. Remove the cables from the cable hook on the printer mechanism and the hook on the ASF assembly.
  • Page 120 When installing the right and left paper feed roller assemblies to the LD roller shaft, the black paper feed roller assembly goes on the right side and the one in the standard EPSON color goes on the left of the shaft. Revision A...
  • Page 121 EPSON Stylus Color 440/640/740 Revision A Figure 4-16. Disassembly of ASF Assembly Chapter 4 Disassembly and Assembly...
  • Page 122 EPSON Stylus Color 440/640/740 4.2.4.6.2 Removing the Right and Left LD Roller Assembly 1. Disassemble the ASF assembly and remove the paper feed roller assembly and hopper assembly from the ASF assembly. (Refer to Section 4.2.4.6.) 2. Take out the right and left compression springs 1.66 from the back of the hopper assembly.
  • Page 123 EPSON Stylus Color 440/640/740 4.2.4.7 Removing the Carriage Assembly 1. Remove the housing. (Refer to Section 4.2.1) 2. Loosen the timing belt by pushing the driven pulley holder and remove the timing belt from the pulley of the CR motor side.
  • Page 124 EPSON Stylus Color 440/640/740 Revision A Figure 4-19. Removing the Carriage Assembly Chapter 4 Disassembly and Assembly...
  • Page 125 EPSON Stylus Color 440/640/740 4.2.4.8 Removing the PF Roller Assembly 1. Remove the housing.(Refer to Section 4.2.1.) 2. Remove the carriage assembly.(Refer to Section 4.2.4.7.) 3. Remove three screws(No.1) on the printer mechanism and disassemble the cable guide board. 4. Remove six upper paper guide assemblies, releasing their springs from the hooks in the frame.
  • Page 126 EPSON Stylus Color 440/640/740 Revision A Figure 4-22. Removing the PF Roller Assembly Figure 4-21. Removing the Paper Eject Roller Assembly Chapter 4 Disassembly and Assembly...
  • Page 127 EPSON Stylus Color 440/640/740 4.2.4.9 Removing the PE Paper Detector Assembly 1. Remove the housing. (Refer to Section 4.2.1.) 2. Release two fixed hooks securing the PE detector assembly from the back of the frame and remove the PE detector assembly, sliding it upward.
  • Page 128 EPSON Stylus Color 440/640/740 4.2.4.10 Removing the HP Detector 1. Remove the housing. (Refer to Section 4.2.1.) 2. Remove the cable from the HP detector and take it out after releasing the fixed hook. Figure 4-24. Removing the HP Detector...

  • Page 129: Adjustment

           ADJUSTMENT...

  • Page 130: Overview

    EPSON Stylus Color 440/640/740 5.1 Overview This chapter describes adjustments required when the printer is disassembled and assembled after repair. 5.1.1 Required Adjustments Stylus Color 440/640/740 require the following adjustments. (Refer to Table 5-1) Perform any necessary adjustment referring to the figures and procedures described throughout this chapter.

  • Page 131: Adjustment Tools Required

    EPSON Stylus Color 440/640/740 5.1.2 Adjustment Tools Required Table 5-3 below shows adjustment tools for Stylus Color 440/640/740. Table 5-3 Adjustment Tools Required Name Adjustment Item Thickness Gauge Parallelism Adjustment Adjustment Program Each Mechanism Settings Exclusive Program; N eve r use the ben t (cu rved or tilted) or rusty th ickness ga uge.

  • Page 132: Adjustment

    This section explains specific procedures for each adjustment required for Stylus Color 440/640/740. 5.2.1 Parallelism Adjustment When replacing the carriage assembly or removing it during printer mechanism disassembly, perform the parallelism adjustment during assembling and set the standard distance from the surface of the printhead to the paper surface.
  • Page 133 When completing this adjustment, check the overlap amount of the printhead and head cleaner. 1. Rotate the gear 67.2 and move the head cleaner to the printer rear side. 2. Move the carriage next to the head cleaner and make sure that overlap between the tip of the printhead and cleaner head is more than 0.5 mm.

  • Page 134: Adjustment By Adjustment Program

    World and CG table to the NLSP ver. *: This prompt is only available for Stylus Color 640 and 740. However, Stylus Color 640 has no CG on the C256 Main board, so that you can not print out the NLSP characters.

  • Page 135: Maintenance

    EPSON Stylus Color 440/640/740 Main menu ESC Key Return Key Maintenance Adjustment Head Cleaning(CL2) Market/Destination Check Ink Charge Flag Reset Head Voltage ID Input Head Angular Adjustment Transportation Liquid Charge Bi-D Adjustment Protection Counter value Figure 5-5. Options in the Program and Keys to Use...
  • Page 136 SC740.EXE on the DOS prompt. * The adjustment program name provided with each printer is shown below. A(In case of FD):\SC440.EXE for Stylus Color 440 A(In case of FD):\SC640.EXE for Stylus Color 640 A(In case of FD):\SC740.EXE for Stylus Color 740 Chapter 5 Adjustment 4.
  • Page 137 5. After a few seconds, the model name appears on the screen shown below. Proceed to one of the following steps. If the printer is Stylus Color 440 or 640, go to If the printer is Stylus Color 740, go to Step Figure 5-7.
  • Page 138 If you mistype the model name, the program will automatically return to the model name input screen (Figure 5-10). For Stylus Color 740: If the printer is Stylus Color 740, you must set the correct CG, NLSP Standard. sure to read the instructions below carefully to take the proper steps.
  • Page 139 EPSON Stylus Color 440/640/740 5.2.2.2.2 Setting the CG (Destination information) Color 740 only) Since there are two models for Stylus Color 740, the standard model and NLSP model, you are required to set the correct CG according to the model by following the steps described in this section.

  • Page 140: Maintenance

    EPSON Stylus Color 440/640/740 5.2.2.3 Initial Ink Charge Operation There is no ink charged in the ink path of a spare printhead and printer mechanism. Therefore, after you replaced any of the following units, perform initial ink charge and return the printer after making sure that ink is ejected correctly from the printhead.

  • Page 141: Maintenance

    3. By using the Up/Down arrow key, select Head cleaning, and the following screen appears. Figure 5-14. Cleaning Menu 4. Press the Enter key. The printer enters the CL2 sequence. 60 seconds for the process to complete.) Revision A (It takes...

  • Page 142: Maintenance

    EPSON Stylus Color 440/640/740 5.2.2.5 Protection Counter Indicate/Reset The program provided with this manual can let you confirm or clear the current protection counter value. (Of course, you can confirm or clear the current protection value by main unit alone. Refer to table 1-21 and 1-22 for details.)
  • Page 143 EPSON Stylus Color 440/640/740 [Clearing the current protection counter value] 1. Enter the main menu. (Refer to Section 5.2.2.2 ) 2. Apply the maintenance menu. 3. By using the Up/Down arrow key, select the item Indication of the counter value for the waste ink pad in the maintenance menu (Figure 5-12).
  • Page 144 EPSON Stylus Color 440/640/740 5.2.2.6 Market/Destination Check (only for Stylus Color 740) As already mentioned, there are two models for Stylus Color 740, Standard model and NLSP model, and you are required to set the suitable destination depending on the type of the main board supported.
  • Page 145 EPSON Stylus Color 440/640/740 4. Press the Enter key, and the screen below appears. The terms World and Standard show the current value set in the destination and CG addresses in the EEPROM. Figure 5-21. Market/Destination Confirmation Menu 5. You can return to the adjustment menu by pressing the Esc key twice.
  • Page 146 EPSON Stylus Color 440/640/740 5.2.2.7 Head Voltage ID Input Head voltage value adjustment function enables you to write printhead ID. This operation is considered the most important to maintain proper ink discharging system. If an ID is not written correctly, it results in white or color lines and also gives bad influence on dot weight.
  • Page 147 EPSON Stylus Color 440/640/740 6. When you input the head ID value, the screen automatically advances consequently, as shown below: Figure 5-24. Head Voltage ID Writing Screen Chapter 5 Adjustment 7. Press the Esc key once. The screen returns to the Head Voltage ID Check/Input Select Menu.
  • Page 148 Figure 5-26. Current Head Angular Confirmation Menu (1) 4. Select Head Angular Adjustment Pattern and press Enter key. The screen below appears and the printer prints the head angular adjustment pattern (Figure 5-28). Figure 5-27. Current Head Angular Confirmation Menu (2)
  • Page 149 EPSON Stylus Color 440/640/740 Head Angular Adjustment Pattern (BK-M) Figure 5-28. Sample of Head Angular Adjustment Pattern 5. Loosen the printhead securing screw securing the printhead on the carriage. (You don't need to remove it completely.) Printhead securing screw Figure 5-29. . Screw Position NOTE: Make sure to loosen this screw.
  • Page 150 EPSON Stylus Color 440/640/740 7. After changing the position of the adjust lever, select Head angular adjustment pattern again. The printer prints out a head angular adjustment pattern and the screen automatically returns to the Current Head Angular Confirmation Menu (1) shown in the figure below.
  • Page 151 4. By using the Up/Down arrow key, select Print the Bi-D adjustment pattern on the screen, and the screen bellow appears. Figure 5-33. Before Printing the Bi-D pattern 5. Press the Enter key. The printer starts printing a Bi-D adjustment pattern. (See the sample pattern in the following page.) NOTE: As shown in the sample, gaps between passes are sometimes created in different directions among patterns.
  • Page 152 EPSON Stylus Color 440/640/740 200 CPS Bi-D Pattern : Data = -2 Left Gap 200 CPS Bi-D Pattern : Data = 0 Right Gap 200 CPS Bi-D Pattern : Data = 2 Figure 5-34. Bi-D ADjustment Pattern Sample Chapter 5 Adjustment 6.

  • Page 153: Maintenance

           MAINTENANCE...

  • Page 154: Overview

    The printer has a built-in head cleaning function and is activated through the control panel operation. 1. Confirm that the printer is in stand-by state (the POWER indicator is not blinking), and hold down the cleaning button on the control panel for more than 3 seconds.

  • Page 155: Lubrication

    EPSON Stylus Color 440/640/740 6.1.3 Lubrication The type and amount of oil and grease used to lubricated the printer parts are determined based on the results of internal evaluations. Therefore, be sure to apply the specified type and amount of oil and grease to the specified part of the printer mechanism during servicing.
  • Page 156 EPSON Stylus Color 440/640/740 Table 6-2. Lubrication Point Standard <Lubrication Point> Use a syringe to apply it. The shaft for “GEAR, 16, 40.8” on “FRAME, LEFT” <Lubricant Type> G-26 <Lubrication Amount> Approximately 5-mm long <Lubrication Point> For the right bushing, apply it from the paper path side, and wipe off any Bushings for “ROLLER, PF”...
  • Page 157 EPSON Stylus Color 440/640/740 Never apply oil to the CR guide shaft directly. This may cause fatal damage to the components of the printer. Avoid applying oil excessively to the oil pad. This may cause fatal damage to the components of the printer.
  • Page 158 EPSON Stylus Color 440/640/740 Revision A Chapter 6 Maintenance...
  • Page 159 EPSON Stylus Color 440/640/740 Revision A Chapter 6 Maintenance...

  • Page 160: Appendix

           APPENDIX...

  • Page 161: Connector Summary

    A.1 Connector Summary This section gives information on connectors and their pin assignment. Since all connectors and their pin assignments except for CN8 (printhead) are common for Stylus Color 440 and Stylus Color 640, they are included in one section (Section A.1.1.) Refer to...

  • Page 162: Connector Summary (Stylus Color 440/640)

    (Stylus Color 440/640) This section provides information on connectors in the main units of the Stylus Color 440 and Stylus Color 640. Figure 1 shows how the main component units are connected. Information contained in this section only applies to Stylus Color 440 and Stylus Color 640.
  • Page 163 Tables in this section provide connector pin assignments of the C206MAIN-B, C255MAIN and C256MAIN, the main boards equipped with Stylus Color 440 and Stylus Color 640. Information contained in this section only applies to Stylus Color 440 and Stylus Color 640.
  • Page 164 EPSON Stylus Color 440/640/740 Table A-5. Connector CN6 Signal Name Phase drive signal (A) Phase drive signal (B) CR-A Phase drive signal (-A) CR-B Phase drive signal (-B) Table A-6. Connector CN7 Signal Name Phase drive signal (A) Phase drive signal (B)
  • Page 165 EPSON Stylus Color 440/640/740 Table A-8. Connector CN8 Signal Name Black ink cartridge detect signal Color ink cartridge detect signal Thermistor detect signal Ground Head data latch pulse output Ground Head data output (3) Ground Head data output (2) Ground...

  • Page 166: Connector Summary For Stylus Color 740

    EPSON Stylus Color 440/640/740 A.1.2 Connector Summary for Stylus Color 740 This section contains information on connectors in the main units of Stylus Color 740. Figure 2 shows how the main component units of the Stylus Color 740 are connected.
  • Page 167 EPSON Stylus Color 440/640/740 A.1.2.1 Connector Pin Assignment (Stylus Color 740) Tables in this section provide connector pin assignments of the C257MAIN, the main board equipped with Stylus Color 740. Information contained in this section only applies to Stylus Color 740.
  • Page 168 EPSON Stylus Color 440/640/740 Table A-17. Connector CN9 Signal Name Black ink cartridge detect signal Color ink cartridge detect signal Thermistor detect signal Ground Head data latch pulse output Ground Head data output (6) Head data output (5) Head data output (4)

  • Page 169: Eeprom Address Map

    640) This section provides EEPROM address map for the Stylus Color 440 and Stylus Color 640. Since the contents of the EEPROM maps of the main boards (C206MAIN-B, C255MAIN, and C256MAIN) are mostly common, they are combined into one table except for some addresses.
  • Page 170 EPSON Stylus Color 440/640/740 Table A-20. Stylus Color 440/640 EEPROM Address Map Address Explanation Setting Password 0 Market 0: Word 1: Japan 2: Custom (MJ-) 3: Custom (Stylus Color) 4: Custom (other name) 1st dot adjustment -40 n 40 (by 1/1440 inch)
  • Page 171 EPSON Stylus Color 440/640/740 Table A-22. Stylus Color 440/640 EEPROM Address Map (Continued) Address Explanation Setting Password 2 Interface selection 0: Auto, 1: Parallel 2: Serial Interface wait time 0 to 255 (by second) Parallel I/F speed 0: High speed 1: Normal...
  • Page 172 EPSON Stylus Color 440/640/740 Table A-24. Stylus Color 440/640 EEPROM Address Map (Continued) Address Explanation Setting CR-phase of Home ERROR Number Password 4 Ink flags bit7: Reserved bit6: black “one time” bit5: color “one time” bit4: Initial fill required bit3: Reserved bit2: in cleaning seq.
  • Page 173 EPSON Stylus Color 440/640/740 Table A-26. Stylus Color 440/640 EEPROM Address Map (Continued) Address Explanation Setting Ink counter A power off time CL time accumulated 0: 0 minute printing time 1: 15 minutes 2: 30 minutes 3: 60 minutes 4: 90 minutes...

  • Page 174: Eeprom Address Map (Stylus Color 740)

    EPSON Stylus Color 440/640/740 A.2.2 EEPROM Address Map (Stylus Color 740) This section provides EEPROM address map for the Stylus Color 740. EEPROM map in this section only applies to Stylus Color 740. If you need EEPROM map for Stylus Color 440/640, return to Section A.2.1.
  • Page 175 EPSON Stylus Color 440/640/740 Table A-30. Stylus Color 740 EEPROM Address Map (Coutinued) Address Explanation Setting Head actuator rank ID for lwEF Bi-D Adjustment -36<=n=<+36 data for Normal- (by 1/1440 inch) Bi-D Adjustment -36<=n=<+36 data for Micro-dot (by 1/1440 inch) Bi-D Adjustment -36<=n=<+36...
  • Page 176 EPSON Stylus Color 440/640/740 Table A-32. Stylus Color 740 EEPROM Address Map (Coutinued) Address Explanation Setting CG table 0: Italic U.S.A., 1: Italic France, 2: Italic Germany 3: Italic U.K, 4: Italic Denmark, 5: Italic Sweden, 6: Italic Italy, 7: Italic...
  • Page 177 EPSON Stylus Color 440/640/740 Table A-34. Stylus Color 740 EEPROM Address Map (Coutinued) Address Explanation Setting Ink counter Cm Ink counter Cc Ink counter Clm Ink counter Clc Ink counter Rb Ink counter Ry Ink counter A Power off time...

  • Page 178: Circuit Board Component Layouts

    EPSON Stylus Color 440/640/740 A.3 Circuit Board Component Layouts This section is composed of the following components layouts. C206MAIN-B (Stylus Color 440) C256MAIN (Stylus Color 640) C257MAIN (Stylus Color 740) C206PSB/PSE (Stylus Color 440/640) C257PSB/PSE (Stylus Color 740) C206PNL (Stylus Color 440/640)
  • Page 179 EPSON Stylus Color 440/640/740 Revision A Figure A-3. C206MAIN-B Board Component Layout (1/2) (Stylus Color 440) Chapter 7 Appendix...
  • Page 180 EPSON Stylus Color 440/640/740 Revision A Figure A-4. C206MAIN-B Board Component Layout (2/2) (Stylus Color 440) Chapter 7 Appendix...
  • Page 181 EPSON Stylus Color 440/640/740 Revision A Figure A-5. C256MAIN Board Component Layout (1/2) (Stylus Color 640) Chapter 7 Appendix...
  • Page 182 EPSON Stylus Color 440/640/740 Revision A Figure A-6. C256MAIN Board Component Layout (2/2) (Stylus Color 640) Chapter 7 Appendix...
  • Page 183 EPSON Stylus Color 440/640/740 Revision A Figure A-7. C257MAIN Board Component Layout (1/2) (Stylus Color 740) Chapter 7 Appendix...
  • Page 184 EPSON Stylus Color 440/640/740 Revision A Figure A-8. C257MAIN Board Component Layout (2/2) (Stylus Color 740) Chapter 7 Appendix...
  • Page 185 EPSON Stylus Color 440/640/740 Revision A Figure A-9. Figure A-10. C206PSB Board Component Layout (Stylus Color 440/640) C206PSE Board Component Layout (Stylus Color 440/640) Chapter 7 Appendix...
  • Page 186 EPSON Stylus Color 440/640/740 Revision A Figure A-12. Figure A-11. C257 PSE Board Component Layout (Stylus Color 740) C257 PSB Board Component Layout (Stylus Color 740) Chapter 7 Appendix...
  • Page 187 EPSON Stylus Color 440/640/740 Revision A Figure A-14. C209PNL Component Layout Figure A-13. C206PNL Component Layout Chapter 7 Appendix...

  • Page 188: Exploded Diagrams

    A.4 Exploded Diagrams This section contains the following exploded diagrams. Exploded diagram for Stylus Color 440 (1/3, 2/3, 3/3) Exploded diagram for Stylus Color 640 (1/3, 2/3, 3/3) Exploded diagram for Stylus Color 740 (1/3, 2/3, 3/3) Chapter 7 Appendix...
  • Page 189 EPSON Stylus Color 440/640/740 EXPLODED DIAGRAM FOR EPSON STYLUS COLOR 440 (1/3) Chapter 7 Appendix for ETT for EAI for RUSSIA for EUR,S.E.ASIA,OCEANIA,EKL,RUSSIA for LATIN for LATIN REV.1.0 Revision A 10001...
  • Page 190 EPSON Stylus Color 440/640/740 EXPLODED DIAGRAM FOR EPSON STYLUS COLOR 440 (2/3) Chapter 7 Appendix REV.1.0 Revision A 10001...
  • Page 191 EPSON Stylus Color 440/640/740 (501) 542 544 542 544 542 544 EXPLODED DIAGRAM FOR EPSON STYLUS COLOR 440 (3/3) Chapter 7 Appendix (506) (565) (505) REV.1.0 Revision A 564 562 10001...
  • Page 192 EPSON Stylus Color 440/640/740 EXPLODED DIAGRAM FOR EPSON STYLUS COLOR 640 (1/3) Chapter 7 Appendix for ETT for EAI for RUSSIA for EUR,S.E.ASIA,OCEANIA,EKL,RUSSIA for EUR.,S.E.ASIA,OCEANIA EKL,RUSSIA for USA for LATIN for LATIN REV.1.0 Revision A 10002...
  • Page 193 EPSON Stylus Color 440/640/740 EXPLODED DIAGRAM FOR EPSON STYLUS COLOR 640 (2/3) Chapter 7 Appendix REV.1.0 Revision A 10002...
  • Page 194 EPSON Stylus Color 440/640/740 (501) 542 544 542 544 542 544 EXPLODED DIAGRAM FOR EPSON STYLUS COLOR 640 (3/3) Chapter 7 Appendix (506) (565) (505) REV.1.0 Revision A 564 562 10002...
  • Page 195 EPSON Stylus Color 440/640/740 EXPLODED DIAGRAM FOR EPSON STYLUS COLOR 740 (1/3) Chapter 7 Appendix for EAI for ETT For EUR,S.E.ASIA, for EAI, LATIN for LATIN OCEANIA,RUSSIA Rev.01 Revision B 10004...
  • Page 196 EPSON Stylus Color 440/640/740 EXPLODED DIAGRAM FOR EPSON STYLUS COLOR 740 (2/3) Chapter 7 Appendix Rev.01 Revision B 10004...
  • Page 197 EPSON Stylus Color 440/640/740 (501) 542 544 542 544 542 544 EXPLODED DIAGRAM FOR EPSON STYLUS COLOR 740 (3/3) Chapter 7 Appendix (506) (565) (505) Rev.01 Revision B 564 562 10004...

  • Page 198: Part List

    EPSON Stylus Color 440/640/740 A.5 Part List Part List A.5.1 for Stylus Color 440/640 Table A-36. Part List for Stylus Color 440/640 (1/4) Part Name 100 Housing;B 128 Mini Clamp 101 Cover, Printer;B 180 Label, Caution 1;B 102 Paper Support;B 181 Label, Accessory B 103 Stacker Assembly;B...
  • Page 199 EPSON Stylus Color 440/640/740 Table A-38. Part List for Stylus Color 440/640 (3/4) Part Name 578 Push Nut, 2 724 Roller, LD, Sub 579 Harness, HP 725 Holder, Roller, LD, Sub, Right 580 Harness, PE 726 Pad Assy., Left 581 Harness, ASF...

  • Page 200: Part List For Stylus Color 740

    EPSON Stylus Color 440/640/740 Part List A.5.2 for Stylus Color 740 Table A-40. Part List for Stylus Color 740 (1/4) 100 Housing 135 Spacer, Housing, Panel 101 Cover, Printer 180 Label, Caution 1 102 Paper Support Assembly 181 Label, Accessory...
  • Page 201 EPSON Stylus Color 440/640/740 Table A-42. Part List for Stylus Color 740 (3/4) 586 CBS-Tite Screw 719 Holder, Edge Guide, Right 587 CBS-Tite Screw, M3x6 720 Compression Spring, 1.17 588 CBS-Tite (P4) Screw, 3x6, F/Zn 721 Tension Spring, 0.62 589 Leaf Spring, 6.2x0.15x11 722 Lever, Paper Return, Right 590 Plain Washer, 6.1x0.5x9.0...

  • Page 202: Circuit Diagrams

    EPSON Stylus Color 440/640/740 A.6 Circuit Diagrams See the following pages for the circuit diagrams below. NOTE: For circuit diagram for C206MAIN-B, refer to the hard copies, as no pdf files for it is provided. C206MAIN-B circuit diagram 1/2, 2/2 See the hard copies.
  • Page 203 EPSON Stylus Color 440/640/740 Revision B C206MAIN-B Circuit diagrams 1of 2 See the hard copy. Chapter 7 Appendix...
  • Page 204 EPSON Stylus Color 440/640/740 Revision B C206MAIN-B Circuit diagrams 2 of 2 See the hard copy. Chapter 7 Appendix...
  • Page 208 EPSON Stylus Color 440/640/740 Revision B C206PSB 1/1 Chapter 7 Appendix...
  • Page 209 EPSON Stylus Color 440/640/740 Revision B C206PSE 1/1 Chapter 7 Appendix...

This manual is also suitable for:

Stylus color 740Stylus color 460Stylus color 440

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