Page 1 SERVICE MANUAL DIGITAL PLAIN PAPER COPIER e-STUDIO550/650/810 (DP-5510/6510/8110) File No.31100202 2002-06...
Page 3: Exposure Lamp
GENERAL PRECAUTIONS REGARDING THE INSTALLATION AND SERVICE FOR THE COPIER e-STUDIO550/650/810 The installation and service should be done by a qualified service technician. Transportation/Installation • When transporting/installing the copier, move it by the casters while lifting the stoppers. The copier is quite heavy and weighs approximately 200 kg (441 lb), therefore pay full attention when handling it.
Page 4 Be sure to handle/install them properly. If these parts are shorted circuit and/or made their functions out, they may burn down, for instance, and may result in fatal accidents. Do not allow a short circuit to occur. Do not use the parts not recommended by Toshiba TEC Corporation.
Page 5 SPECIFICATIONS / ACCESSORIES / OPTIONS / SUPPLIES 1. 1. Specifications 1. 2. Accessories 1. 3. Options 1. 4. Supplies 1. 5. System List...
Page 6: Specifications
1. SPECIFICATIONS / ACCESSORIES / OPTIONS / SUPPLIES 1. 1. Specifications When the specification is different among e-STUDIO550, 650 and 810, the value for e-STUDIO650 is shown by [ ] and the value for e-STUDIO810 is shown by { }.
Page 7 Double-sided copies 5 sets 121"96 108"01 95"06 measured by actual measurement. Double-sided originals 1 set 31"77 31"49 30"88 3 sets 74"75 67"97 60"58 Single-sided copies 5 sets 117"88 104"64 90"02 e-STUDIO550/650/810 SPECIFICATIONS 1 - 2 JUNE 2002 © TOSHIBA TEC...
Page 8: 25~200% When Using The Radf
Toshiba. • First copy time ....3.3 seconds or less (A4/LT, LCF, 100%, original placed manually) • Warming-up time ....Approx.160 seconds (e-STUDIO550/650/810, Temperature: 20°C) Notes: 1. This is at the condition not entering the toner supply operation. 2. The auto job start is not operated.
Page 9 The electric power is supplied to the finisher and external LCF (optional) through the copier. • Total counter ...... Electronic counter • Dimensions of the copier ... See the figure below. (W698x D778 x H1207 mm) 1207 mm 778 mm 698 mm e-STUDIO550/650/810 SPECIFICATIONS 1 - 4 JUNE 2002 © TOSHIBA TEC...
Page 10 Drum 1 pc. Drum cover 1 pc. Original feeding tray 1 pc. Tab paper end guide 1 pc. * Machine version NAD: North America MJD: Europe AUD: Australia ASD: Asia JUNE 2002 © TOSHIBA TEC 1 - 5 e-STUDIO550/650/810 SPECIFICATIONS...
Page 11 Key copy counter/Key copy counter socket MU-8/MU-10 Damp heater kit MF-6510U/E Printer controller GL-1020 Printer board GA-1140 1. 4. Supplies Drum OD-6510 Developer material D-6510 Toner PS-ZT6510/PS-ZT6510/PS-ZT-6510D Toner bag PS-TB6510/PS-TB6510E e-STUDIO550/650/810 SPECIFICATIONS 1 - 6 JUNE 2002 © TOSHIBA TEC...
Page 13: Outline Of The Machine
OUTLINE OF THE MACHINE 2. 1. Sectional View 2. 2. Electric Parts Layout 2. 3. Symbols and Functions of Various Components 2. 4. Symbols and Functions of RADF Various Components 2. 5. System Block Layout 2. 6. Disassembly and Replacement of Covers and PC Boards 2.
Page 14: Sectional View
2. OUTLINE OF THE MACHINE 2. 1. Sectional View [A] Front side view JUNE 2002 © TOSHIBA TEC 2 - 1 e-STUDIO550/650/810 OUTLINE OF THE MACHINE...
Page 15: Table Of Contents
Cleaning web Tandem LCF tray Cleaning web pushing roller Fuser roller Separation finger Fuser exit roller Pressure roller Cleaning roller (metal) Cleaning roller (felt) Fuser roller thermistor e-STUDIO550/650/810 OUTLINE OF THE MACHINE 2 - 2 JUNE 2002 © TOSHIBA TEC...
Page 17 Drive pulley Drive belt Driven pulley Drum motor Developer unit motor Registration motor Fuser motor Web motor Exit motor Reverse motor LCF tray-up motor LCF end fence motor e-STUDIO550/650/810 OUTLINE OF THE MACHINE 2 - 4 JUNE 2002 © TOSHIBA TEC...
Page 18: Electric Parts Layout
2. 2. Electric Parts Layout [A] Unit construction Reversing automatic document feeder unit Scanner unit Laser unit Fuser unit Transfer/Transport unit Copier unit Rear side JUNE 2002 © TOSHIBA TEC 2 - 5 e-STUDIO550/650/810 OUTLINE OF THE MACHINE...
Page 19 [B] Scanner unit (B-1) Motor/Exposure lamp Rear side (B-2) Sensor/Switch S1-5 S1-5 S1-5 S1-5 S1-5 A4 series Rear side S1-4 S1-4 S1-4 S1-4 LT series Rear side e-STUDIO550/650/810 OUTLINE OF THE MACHINE 2 - 6 JUNE 2002 © TOSHIBA TEC...
Page 20 (B-3) PC board Rear side (B-4) Other parts THMO4 Rear side JUNE 2002 © TOSHIBA TEC 2 - 7 e-STUDIO550/650/810 OUTLINE OF THE MACHINE...
Page 21 [C] Laser unit LDR1 LDR2 Rear side [D] Transfer/Transport unit THMO3 FUSE CLT2 CLT1 CLT3 Rear side e-STUDIO550/650/810 OUTLINE OF THE MACHINE 2 - 8 JUNE 2002 © TOSHIBA TEC...
Page 22 [E] Fuser unit IHCOIL THM1 THMO2 THM2 THMO1 THM5 THM3 Rear side JUNE 2002 © TOSHIBA TEC 2 - 9 e-STUDIO550/650/810 OUTLINE OF THE MACHINE...
Page 23 [F] Copier unit (F-1) Motor/Fan Rear side e-STUDIO550/650/810 OUTLINE OF THE MACHINE 2 - 10 JUNE 2002 © TOSHIBA TEC...
Page 24 (F-2) Clutch/Solenoid SOL2 SOL1 SOL3 CLT4 CLT5 CLT6 SOL5 CLT8 CLT7 CLT10 CLT9 CLT11 SOL4 Rear side JUNE 2002 © TOSHIBA TEC 2 - 11 e-STUDIO550/650/810 OUTLINE OF THE MACHINE...
Page 25: Rear Side
(F-3) Sensor/Switch Rear side e-STUDIO550/650/810 OUTLINE OF THE MACHINE 2 - 12 JUNE 2002 © TOSHIBA TEC...
Page 27 (F-5) Other parts THM4 BRK1 Rear side e-STUDIO550/650/810 OUTLINE OF THE MACHINE 2 - 14 JUNE 2002 © TOSHIBA TEC...
Page 28 SSOL DFOPSW TRYS SMOT COPSW LMOT TLMOT TRVR RMOT FMOT SOES SSBS REGS ITFS DLMTS RSOL SIZE2 SIZE3 COPS SIZE1 LLMTS LSOL EMPS LNGS DFOPEN READS LOES JUNE 2002 © TOSHIBA TEC 2 - 15 e-STUDIO550/650/810 OUTLINE OF THE MACHINE...
Page 29: Symbols And Functions Of Various Components
Toner recycle hopper motor RCY-TNR-MOT Transporting of the recycle toner 46-19 (F-1) Recycle toner transport motor HTR-FAN-MOT Cooling down of the copier inside 31-7 (F-1) Heater fan motor e-STUDIO550/650/810 OUTLINE OF THE MACHINE 2 - 16 JUNE 2002 © TOSHIBA TEC...
Page 30 24-17 IH fan motor SLG-FAN-MOT Cooling down of the SLG board 32-10 (B-1) SLG fan motor END-F-MOT Moving of the end fence 9-22 (F-1) End fence motor JUNE 2002 © TOSHIBA TEC 2 - 17 e-STUDIO550/650/810 OUTLINE OF THE MACHINE...
Page 31 Intermediate transport sensor RGST-SNR Paper detection at the registration 16-6 (F-3) Registration sensor section TR-BELT-SW 1 Transfer belt release position 18-3 (F-3) Transfer belt release switch detection e-STUDIO550/650/810 OUTLINE OF THE MACHINE 2 - 18 JUNE 2002 © TOSHIBA TEC...
Page 32 LCF-BTM-SNR Tray home position detection 8-14 (F-3) Tandem LCF bottom sensor END-F-STP-SNR End fence stop position detection 8-14 (F-3) End fence stop position sensor JUNE 2002 © TOSHIBA TEC 2 - 19 e-STUDIO550/650/810 OUTLINE OF THE MACHINE...
Page 33 Paper size detection at the bypass 12-9 (F-3) Bypass paper size detection sensor feed width detection TEMP/HUMI-SNR Detection of the temperature and 3-103 (F-3) Temperature/humidity sensor humidity of the copier inside e-STUDIO550/650/810 OUTLINE OF THE MACHINE 2 - 20 JUNE 2002 © TOSHIBA TEC...
Page 34 PS-IH Control of the fuser unit IH coil 24-16 IH control board FUSE PWA-F-FUS Cutting of the electric current to the 21-30 Fuse PC board damp heater JUNE 2002 © TOSHIBA TEC 2 - 21 e-STUDIO550/650/810 OUTLINE OF THE MACHINE...
Page 35 PS-HVT Generating of the voltages for the 51-19 (F-4) High-voltage transformer followings: • main charger wire • main charger grid • developer bias • drum cleaning brush e-STUDIO550/650/810 OUTLINE OF THE MACHINE 2 - 22 JUNE 2002 © TOSHIBA TEC...
Page 36 Safety switch 51-6 (F-5) Breaker 1 BRK2 BREAKER2 Safety switch 51-6 (F-5) Breaker 2 CD-ERS Removing of the residual charge from 37-11 (F-5) Discharge lamp the drum surface JUNE 2002 © TOSHIBA TEC 2 - 23 e-STUDIO550/650/810 OUTLINE OF THE MACHINE...
Page 37: Symbols And Functions Of Radf Various Components
Small original exit solenoid flapper and reverse flapper (P87-I1) (3) PC boards Symbol Name Function Remarks DFLG PWA-F-ADF ·Control of the ADF (P88-I13) ADF PC control board (ADF board) e-STUDIO550/650/810 OUTLINE OF THE MACHINE 2 - 24 JUNE 2002 © TOSHIBA TEC...
Page 38 Detecting the original width on the tray Rotary volume Tray width sensor (P93-I6) LOES LO-EX-SNS Detecting original at the large original Semiconductive Large original exit sensor exit photosensor (P85-I15) JUNE 2002 © TOSHIBA TEC 2 - 25 e-STUDIO550/650/810 OUTLINE OF THE MACHINE...
Page 39: System Block Layout
2. 5. System Block Layout e-STUDIO550/650/810 OUTLINE OF THE MACHINE 2 - 26 JUNE 2002 © TOSHIBA TEC...
Page 40 (2) Remove 1 screw and take off the exit side rear cover. (3) Remove 6 screws and take off the exit side bottom cover. Exit side bottom cover JUNE 2002 © TOSHIBA TEC 2 - 27 e-STUDIO550/650/810 OUTLINE OF THE MACHINE...
Page 41 (1) Remove 1 screw and take off the right top cover. [F] Left top cover Left top cover (1) Remove 1 screw and take off the left top cover. e-STUDIO550/650/810 OUTLINE OF THE MACHINE 2 - 28 JUNE 2002 © TOSHIBA TEC...
Page 42 (1) Disconnect 7 connectors to the SYS board Hard disk and hard disk. (2) Remove 9 screws and take off the bracket with the LGC board and hard disk. JUNE 2002 © TOSHIBA TEC 2 - 29 e-STUDIO550/650/810 OUTLINE OF THE MACHINE...
Page 43 (4) Remove 9 connectors and pull out the power supply unit. Note: Be careful not for the power supply unit to be caught by harnesses. Link connector (3) e-STUDIO550/650/810 OUTLINE OF THE MACHINE 2 - 30 JUNE 2002 © TOSHIBA TEC...
Page 44: Copy Process
COPY PROCESS 3. 1. General Description 3. 2. Details of Copy Process 3. 3. Comparison of Copy Process to 6570/5570...
Page 45 (5) Development: Makes the negatively-charged toner adhere to the photoconductive drum and (10) Discharging: Discharges any remaining forms a visible image. negative charge on the drum. JUNE 2002 © TOSHIBA TEC 3 - 1 e-STUDIO550/650/810 COPY PROCESS...
Page 46: Details Of Copy Process
The surface potential on the drum is determined by Grid control circuit Discharge the grid potential and controlled to a certain value transformer by the grid control circuit. e-STUDIO550/650/810 COPY PROCESS 3 - 2 JUNE 2002 © TOSHIBA TEC...
Page 47 (laser emission) and exposes the drum surface to the light to form an electrostatic Polygonal mirror latent image on it. Semiconductor laser element Photo- conductive drum JUNE 2002 © TOSHIBA TEC 3 - 3 e-STUDIO550/650/810 COPY PROCESS...
Page 48 – 400V toner The (–) potential of the drum being – 300V Toner lower than the – 200V developer bias Photocon- ductive – 100V drum Photoconductive layer Aluminum conductive base e-STUDIO550/650/810 COPY PROCESS 3 - 4 JUNE 2002 © TOSHIBA TEC...
Page 49 Photoconductive tacts the photoconductive drum surface. drum This is caused by the lines of magnetic force be- tween the south and north poles. Magnetic roller JUNE 2002 © TOSHIBA TEC 3 - 5 e-STUDIO550/650/810 COPY PROCESS...
Page 50 As indicated in the figure below, the life of the toner cartridge varies depending on the copy mode and coverage of originals Type of originals 74,000 70,000 60,000 50,000 40,000 38,000 30,000 46,000 30,000 40,000 20,000 20,000 30,000 27,000 20,000 20,000 15,000 e-STUDIO550/650/810 COPY PROCESS 3 - 6 JUNE 2002 © TOSHIBA TEC...
Page 51 Paper movement up the cleaner, a separation finger mechanically separates any copy paper which fails to be separated. Transfer belt JUNE 2002 © TOSHIBA TEC 3 - 7 e-STUDIO550/650/810 COPY PROCESS...
Page 52 Cleaning brush between the brush and earth. Flicker 2. Cleaning blade scrapes off the residual toner on Recovery blade the drum. 3. The recovery blade picks up the scraped toner. e-STUDIO550/650/810 COPY PROCESS 3 - 8 JUNE 2002 © TOSHIBA TEC...
Page 53 LED array. The photoconductive drum becomes electrically conductive. All the (–) charges remaining on the photoconductive drum are conducted to the ground. The preparation for the next copy is completed. JUNE 2002 © TOSHIBA TEC 3 - 9 e-STUDIO550/650/810 COPY PROCESS...
Page 54 Same as 6570/5570 10. Cleaning (1) System Blade + Brush Same as 6570/5570 (2) Recovered toner Not acceptable Reuse (by the toner recycle system) 11. Cleaning brush bias Earth Varistor 430V e-STUDIO550/650/810 COPY PROCESS 3 - 10 JUNE 2002 © TOSHIBA TEC...
Page 55 · Pressure roller cleaning metal roller (3) Heater Halogen lamp (Lamp system) IH coil (Induction heating system) (Lamp rating: 800W + 300W) ON/OFF control by thermistor Same as 6570/5570 JUNE 2002 © TOSHIBA TEC 3 - 11 e-STUDIO550/650/810 COPY PROCESS...
Page 56: General Operation
GENERAL OPERATION 4. 1. Overview of Operation 4. 2. Operation 4. 2. 1. Warming-up 4. 2. 2. Standby state (ready for copying) 4. 2. 3. Cassette feed copying with [START] key ON 4. 2. 4. Bypass copying 4. 2. 5. Interrupt copying 4.
Page 57 ~ Patch formed on drum and its reflective ratio read out to set an optimal condition. (3) When fuser roller temperature becomes sufficient for fusing: • IH coil turned OFF • Set number “1” and “READY” displayed JUNE 2002 © TOSHIBA TEC 4 - 1 e-STUDIO550/650/810 GENERAL OPERATION...
Page 58 • Transfer charger ON (6) Carriage scanning termination • Scanning motor turned OFF • Exposure lamp turned OFF • Registration motor turned OFF (after paper trailing edge has passed registration sensor) e-STUDIO550/650/810 GENERAL OPERATION 4 - 2 JUNE 2002 © TOSHIBA TEC...
Page 59 • Each operation of drum, transfer belt, fuser unit and developer unit stopping and each fan returning to standby mode rotation • “READY” displayed and copier entering standby mode JUNE 2002 © TOSHIBA TEC 4 - 3 e-STUDIO550/650/810 GENERAL OPERATION...
Page 60 Timing chart for copying one A4 sized sheet fed from the 1st cassette e-STUDIO550/650/810 GENERAL OPERATION 4 - 4 JUNE 2002 © TOSHIBA TEC...
Page 61 • Interruption lamp turned OFF/Copier returning to conditions before interruption when [INTERRUPT] key is pressed again • “READY TO RESUME JOB 1” displayed (4) [START] key pressed • Back to copying operation before interruption JUNE 2002 © TOSHIBA TEC 4 - 5 e-STUDIO550/650/810 GENERAL OPERATION...
Page 62 Tray not going up (empty sensor OFF) “Add paper” displayed [START] key disabled [When cassette is installed] Cassette detected Tray going up (empty sensor OFF) “Add paper” displayed [START] key disabled e-STUDIO550/650/810 GENERAL OPERATION 4 - 6 JUNE 2002 © TOSHIBA TEC...
Page 63 → Tray-up sensor turned ON → Tray motor stopping • When empty sensor is turned OFF despite tray-up sensor being ON during copying: ↓ Determined there is no paper ↓ “Add paper” display blinked ↓ Copying stopped JUNE 2002 © TOSHIBA TEC 4 - 7 e-STUDIO550/650/810 GENERAL OPERATION...
Page 64 “Set key copy counter” displayed ↓ Copying operation disabled • When the counter is pulled out during copying: Copying is stopped when the key copy counter is pulled out. e-STUDIO550/650/810 GENERAL OPERATION 4 - 8 JUNE 2002 © TOSHIBA TEC...
Page 65 • When a sheet of paper is fed at reverse section: Registration sensor not turned ON within a certain period of time after reverse motor has been turned ON ↓ “Clear paper” symbol ( ) displayed (E11) JUNE 2002 © TOSHIBA TEC 4 - 9 e-STUDIO550/650/810 GENERAL OPERATION...
Page 66 When the [CLEAR] and “8” keys are pressed simultaneously when the “Call for service” symbol is blinking, an error code appears on the message display. For the contents of the error codes, refer to the “SERVICE HANDBOOK”. e-STUDIO550/650/810 GENERAL OPERATION 4 - 10 JUNE 2002 © TOSHIBA TEC...
Page 67 Is cover opened? IH coil ON (Start initializing) · Scanner motor ON · Cassette tray-up motor ON Is registration sensor ON? Is exit sensor ON? Is transport sensor 1 ON? "E03" JUNE 2002 © TOSHIBA TEC 4 - 11 e-STUDIO550/650/810 GENERAL OPERATION...
Page 68 Call for service Call for service Call for service be ready? "C41" "C44" "CA1" Pre-running finished Ready e-STUDIO550/650/810 GENERAL OPERATION 4 - 12 JUNE 2002 © TOSHIBA TEC...
Page 69 Call for service "CA2" remaining set number Carriage stopped remaining set number Scanning system control finished Paper jam fuser unit exit sensor Laser OFF "E01" Process system control finished JUNE 2002 © TOSHIBA TEC 4 - 13 e-STUDIO550/650/810 GENERAL OPERATION...
Page 70 Developer bias OFF Drum motor OFF Transfer belt motor OFF Fuser motor OFF Developer unit motor OFF Recycle toner transport motor OFF Used toner transport motor OFF Drum reversed Standby e-STUDIO550/650/810 GENERAL OPERATION 4 - 14 JUNE 2002 © TOSHIBA TEC...
Page 71: Control Panel
CONTROL PANEL 5. 1. Control Panel and Display Panel 5. 2. Items Shown on Display Panel 5. 2. 1. Display during normal copying 5. 2. 2. Display in abnormal condition 5. 3. Relation between Copier State and Operator's Action 5. 4. Operation 5.
Page 72: Control Panel And Display Panel
LEDs and an LCD to display the state of the copier or the messages. When the operator’s attention is reguired, graphic symbols appear with messages explaining the condition of the copier in the LCD panel. Control Panel Exterior View JUNE 2002 © TOSHIBA TEC 5 - 1 e-STUDIO550/650/810 CONTROL PANEL...
Page 73: Items Shown On Display Panel
5. 2. Items Shown on Display Panel Fig. 5.2-1 Fig. 5.2-2 e-STUDIO550/650/810 CONTROL PANEL 5 - 2 JUNE 2002 © TOSHIBA TEC...
Page 74: Display During Normal Copying
- The copier is ready for scanning and waiting punching dust from the dust box. DUST FULL) for operator to select the copying conditions. The punching dust box is full. JUNE 2002 © TOSHIBA TEC 5 - 3 e-STUDIO550/650/810 CONTROL PANEL...
Page 75 - The copier is ready for scanning and TONER) waiting for the operator to select the copying conditions. Toner other than Toshiba’s has been used. The copier becomes ready to start 18 ENTER DEPART- The copier is waiting for the operator to...
Page 76: Display In Abnormal Condition
- Select the same size for tab sheets Displayed when the paper sizes for the tab 14 Select the same and originals. sheets and originals are different sized Tab sheets as the originals JUNE 2002 © TOSHIBA TEC 5 - 5 e-STUDIO550/650/810 CONTROL PANEL...
Page 77 28 Service - The condition is released when the Displayed when the surface potential surface potential control has recommended for control error occurs finished normally. e-STUDIO550/650/810 CONTROL PANEL 5 - 6 JUNE 2002 © TOSHIBA TEC...
Page 78: Relation Between Copier State And Operator's Action
5. 3. Relation between Copier State and Operator’s Action JUNE 2002 © TOSHIBA TEC 5 - 7 e-STUDIO550/650/810 CONTROL PANEL...
Page 79: Dot Matrix Lcd Circuit
LSI, frame, printed circuit board, and lateral type CFL backlight. * STN:Super Twisted Nematic (2) Block diagram XSCL LCDEN LCD PANEL 320 x 240 DOTS Power supply e-STUDIO550/650/810 CONTROL PANEL 5 - 8 JUNE 2002 © TOSHIBA TEC...
Page 80 LCD. driver KEY CPU Key switches touch panel PWA-F-DSP-300 PWA-F-DSP-340, PWA-F-MKEY-340, PWA-F-SKEY-340 (4) Data transmission 1/tF 1/tF FRAME LOAD FRAME LOAD CP x(320/4) pulses D0-D3 JUNE 2002 © TOSHIBA TEC 5 - 9 e-STUDIO550/650/810 CONTROL PANEL...
Page 81: Led Display Circuit
(a) The transistor (Q3) connected to the LED anode is ON. (b) The output from the cathode side of the LED is “L” level. The LED is turned ON when (a) and (b) are satisfied. e-STUDIO550/650/810 CONTROL PANEL 5 - 10 JUNE 2002 © TOSHIBA TEC...
Page 82 1 connector at the counter. Connector (5) Disconnect 7 connectors, remove 6 screws and DSP board take off the DSP board. Connector Connector JUNE 2002 © TOSHIBA TEC 5 - 11 e-STUDIO550/650/810 CONTROL PANEL...
Page 83 (6) Remove 9 screws and take off the MKEY board. (7) Remove 8 screws and take off the SKEY board. (8) Remove 4 screws and take off the LCD panel. MKEY board LCD panel SKEY board e-STUDIO550/650/810 CONTROL PANEL 5 - 12 JUNE 2002 © TOSHIBA TEC...
Page 84 SCANNING SECTION 6. 1. Function 6. 2. Construction 6. 3. Operation 6. 3. 1. Scanner motor 6. 3. 2. Two-phase motor drive circuit (fixed-current type) 6. 4. Control for Exposure Lamp 6. 4. 1. General description 6. 4. 2. Exposure lamp 6.
Page 85: Reflector
Exposure lamp Carriage-1 Drive pulley Shading correction Rail for carriage-1 Original glass Reflector plate CCD board Lens SLG board Carriage-2 CCD sensor Rail for carriage-2 JUNE 2002 © TOSHIBA TEC 6 - 1 e-STUDIO550/650/810 SCANNING SECTION...
Page 86 Mirror-1 This is a mirror to direct the reflected light from the original to the mirror-2 that is described later. Original Original glass Exposure lamp Reflector Mirror-1 e-STUDIO550/650/810 SCANNING SECTION 6 - 2 JUNE 2002 © TOSHIBA TEC...
Page 87 The size of the original placed on the glass is instantly detected using the automatic original detection sensors (APS sensor) fixed on the base frame without carriage-1 having to move. JUNE 2002 © TOSHIBA TEC 6 - 3 e-STUDIO550/650/810 SCANNING SECTION...
Page 88 (b) Scanning original on RADF Carriage-1 stays at the shading position during the shading correction, and at the scanning position during the scanning operation. e-STUDIO550/650/810 SCANNING SECTION 6 - 4 JUNE 2002 © TOSHIBA TEC...
Page 89 6. 3. 2. Two-phase motor drive circuit (fixed-current type) The scanner motor with the unipolar fixed current chopper method is driven by the stepping motor driver STK672-080 (IC4). JUNE 2002 © TOSHIBA TEC 6 - 5 e-STUDIO550/650/810 SCANNING SECTION...
Page 90 Internal circuit of the driver is initialized by setting the motor to “L” level (pulse interval: 10µs or more). SCNRST Reset Input The motor drive circuit is automatically reset when the power is turned ON. e-STUDIO550/650/810 SCANNING SECTION 6 - 6 JUNE 2002 © TOSHIBA TEC...
Page 91 Original Exposure lamp (Xenon lamp) Lighting device for Xenon lamp (Inverter) PWA-CCD CCD sensor PWA-CCD PWA-SLG Scanner Main CPU Image processing IC37 circuit Construction of exposure lamp control circuit JUNE 2002 © TOSHIBA TEC 6 - 7 e-STUDIO550/650/810 SCANNING SECTION...
Page 92 (1)Electrode (2)Electron (3)Xenon atom (4)Ultraviolet ray (5)Fluorescer generate ultraviolet rays. This ultra- (6)Visible light (irradiated from the opening to outside the pipe) (7)Opening (8)Harness violet rays convert the fluorescer into visible light. e-STUDIO550/650/810 SCANNING SECTION 6 - 8 JUNE 2002 © TOSHIBA TEC...
Page 93 HC14 Q2:RN1401 WDTEN–0 IC16 IC17 Scanner PWA–F–SLG–340 Working conditions EXPON-0 WDTOUT-0 WDTEN-0 +5VSW Xenon lamp State of copier (Lamp drive signal) Normal operation Scanner CPU overdriving Call for Service JUNE 2002 © TOSHIBA TEC 6 - 9 e-STUDIO550/650/810 SCANNING SECTION...
Page 94 I = k × (W — K) k : Coefficient S : Image data before correction K : Black data (stored in “black” memory) W : White data (stored in “white” memory) e-STUDIO550/650/810 SCANNING SECTION 6 - 10 JUNE 2002 © TOSHIBA TEC...
Page 95: Scanner Control Pc Board
[A4 Series] [LT Series] APS-5 APS-5 APS-4 APS-4 Reflection type Reflection type APS-3 photosensor photosensor APS-3 APS-2 APS-1 APS-2 PWA-SLG PWA-SLG Fig. 6.6-2 Original size detection circuit JUNE 2002 © TOSHIBA TEC 6 - 11 e-STUDIO550/650/810 SCANNING SECTION...
Page 96 [A4 Series] APS-5 APS-4 A5–R B5–R A4–R APS-3 APS-1 APS-2 [LT Series] APS-4 APS-5 ST–R APS-3 LT–R APS-2 Fig.6.6-3 Sensor detection points e-STUDIO550/650/810 SCANNING SECTION 6 - 12 JUNE 2002 © TOSHIBA TEC...
Page 97 Retains the latest original size (or no original state) recognized right before the APS operation sensor is turned ON regardless of the state of the APS sensor output signals. JUNE 2002 © TOSHIBA TEC 6 - 13 e-STUDIO550/650/810 SCANNING SECTION...
Page 98 The light emitting diode is driven by a pulse having a 130-µsec cycle and an 8-µsec ON time. When the phototransistor receives the same signal as this pulse, it is determined that there is an original. The pulse modulation is performed inside the reflection type phototransistor. e-STUDIO550/650/810 SCANNING SECTION 6 - 14 JUNE 2002 © TOSHIBA TEC...
Page 99 (3) Remove the lens cover. APS sensor (4) Remove 2 screws and take off the APS sensors with brackets. (5) Remove 1 screw and release the APS sensors from the brackets. JUNE 2002 © TOSHIBA TEC 6 - 15 e-STUDIO550/650/810 SCANNING SECTION...
Page 100 SLG fan motor. SLG fan motor [E] Exposure lamp (1) Move the carriages toward the exit side, disconnect 1 connector of the exposure lamp and remove 1 screw. Connector e-STUDIO550/650/810 SCANNING SECTION 6 - 16 JUNE 2002 © TOSHIBA TEC...
Page 101 (8 paint-locked screws) when changing the lens unit. 2. Handle the lens unit with enough care and do not touch the adjusted area and lens. Adjusted area Lens JUNE 2002 © TOSHIBA TEC 6 - 17 e-STUDIO550/650/810 SCANNING SECTION...
Page 102 (5) Attach the wire holder jigs to the wire pulleys Wire holder jig not to uncoil the wire. (6) Release 2 tension springs. Tension spring e-STUDIO550/650/810 SCANNING SECTION 6 - 18 JUNE 2002 © TOSHIBA TEC...
Page 103 2. Put the spring on the motor and fix it with the screws at a balanced position. [J] Carriage home position sensor Carriage home position sensor (1) Disconnect 1 connector, release latches and take off the carriage home position sensor. JUNE 2002 © TOSHIBA TEC 6 - 19 e-STUDIO550/650/810 SCANNING SECTION...
Page 104: Image Processing
IMAGE PROCESSING 7. 1. General Description 7. 2. Image Processing Circuit 7. 2. 1. General description 7. 2. 2. Configuration 7. 3. SLG Board (PWA-F-SLG-340) 7. 3. 1. Features 7. 3. 2. Functions of image processing circuit 7. 4. PLG Board (PWA-F-PLG-340) 7.
Page 105: Drum
High-quality image processing, image memory editing, editing SLG board processing, gamma correction, gradation processing, external (PWA-F-SLG-340) output system interface Smoothing processing, external input system interface, image area PLG board control, laser related control (PWA-F-PLG-340) JUNE 2002 © TOSHIBA TEC 7 - 1 e-STUDIO550/650/810 IMAGE PROCESSING...
Page 106 (2) Image processing circuit on the PLG board One image processing ASIC is mounted on the PLG board, realizing the following functions: <Functions> Smoothing processing, external input system interface, image area control and laser related control e-STUDIO550/650/810 IMAGE PROCESSING 7 - 2 JUNE 2002 © TOSHIBA TEC...
Page 107 Image processing ASIC for printer sction Smoothing processing External input system interface Image area control Laser related control Laser drive board (PWA-F-LDR-340) Image data flow Laser drive Configuration of image processing section JUNE 2002 © TOSHIBA TEC 7 - 3 e-STUDIO550/650/810 IMAGE PROCESSING...
Page 108 <Example> Dynamic range Extended dynamic range After range correction Back- ground Text Density Density High High Histogram e-STUDIO550/650/810 IMAGE PROCESSING 7 - 4 JUNE 2002 © TOSHIBA TEC...
Page 109 Solid black area Low contrast area Original Image signal After correction JUNE 2002 © TOSHIBA TEC 7 - 5 e-STUDIO550/650/810 IMAGE PROCESSING...
Page 110 This function works for genuine reproduction of halftone image such as photographs. (6) External output system interface This function controls the output of the output interface between the SLG board and the SYS board (PWA-F-SYS-340). e-STUDIO550/650/810 IMAGE PROCESSING 7 - 6 JUNE 2002 © TOSHIBA TEC...
Page 111 (3) Image area control This function sets the effective image area of four directions for the image to be output. (4) Laser related control This function controls the APC (Auto Power Control). JUNE 2002 © TOSHIBA TEC 7 - 7 e-STUDIO550/650/810 IMAGE PROCESSING...
Page 112 (2) Horizontal synchronization signal (H-Sync) ..• The reference clock signal in the printer section clock generation section synchronized with the H-Sync and its signal. (3) Laser drive section ........... • ON/OFF control of the semiconductive laser and APC (Auto Power Control) control. e-STUDIO550/650/810 IMAGE PROCESSING 7 - 8 JUNE 2002 © TOSHIBA TEC...
Page 113 LASER OPTICAL UNIT 8. 1. General Description 8. 2. Structure 8. 3. Laser Diode 8. 4. Disassembly and Replacement...
Page 114: Laser Optical Unit
Ø lens. This unit must not be disassembled in the field since it is finely adjusted and very sensitive to dust. [Laser optical unit exterior view] JUNE 2002 © TOSHIBA TEC 8 - 1 e-STUDIO550/650/810 LASER OPTICAL UNIT...
Page 115 H-Sync detection PC board Front side H-Sync turnup mirror 2nd turnup mirror Front side 1st turnup mirror Slit glass (Laser light exit) Rear side [Laser optical unit overview] e-STUDIO550/650/810 LASER OPTICAL UNIT 8 - 2 JUNE 2002 © TOSHIBA TEC...
Page 116: Structure
The warning label shown below is attached on the front side left inner cover. > < [CAUTION] • Do not approach tools near the path of the laser beam. • Take off your watches, rings, bracelets, etc. when handling the unit. JUNE 2002 © TOSHIBA TEC 8 - 3 e-STUDIO550/650/810 LASER OPTICAL UNIT...
Page 117 2 scan is completed by completion of steps (A) to (C). 2 scan is performed on one plane of the polygonal mirror. 16 scans can be made with one rotation of the polygonal mirror. e-STUDIO550/650/810 LASER OPTICAL UNIT 8 - 4 JUNE 2002 © TOSHIBA TEC...
Page 118 The rudder sensor is attached to the H-Sync sensor to evenly space (42.3µm), by its detection value, the intervals of the secondary scanning of the first and second beams. JUNE 2002 © TOSHIBA TEC 8 - 5 e-STUDIO550/650/810 LASER OPTICAL UNIT...
Page 119 Function to generate the primary scanning synchronizing signals (6) Slit glass Slit glass is located where the laser beams are output from the laser optical unit, and it protects the unit from dust. e-STUDIO550/650/810 LASER OPTICAL UNIT 8 - 6 JUNE 2002 © TOSHIBA TEC...
Page 120 Laser driver circuit increases the forward current if the laser power is insufficent and drecreases the current when the power is excessive to maintain a constant optical output. JUNE 2002 © TOSHIBA TEC 8 - 7 e-STUDIO550/650/810 LASER OPTICAL UNIT...
Page 121: Disassembly And Replacement
(2) Remove 2 screws and take off the optical unit fixing stay. (3) Disconnect 1 connector and remove 2 screws Laser fan motor to take off the laser fan motor. Connecotor e-STUDIO550/650/810 LASER OPTICAL UNIT 8 - 8 JUNE 2002 © TOSHIBA TEC...
Page 122 4. Do not disassemble the laser optical unit in the field since it is precisely adjusted and very sensitive to dust and stain. JUNE 2002 © TOSHIBA TEC 8 - 9 e-STUDIO550/650/810 LASER OPTICAL UNIT...
Page 123: Paper Feeding System
PAPER FEEDING SYSTEM 9. 1. General Description 9. 2. Functions 9. 3. Operation 9. 3. 1. Operation of bypass pickup roller 9. 3. 2. Operation of cassette pickup roller 9. 3. 3. Paper separation 9. 3. 4. General operation 9. 4. Drive Circuit for Tray-up Motor 9.
Page 124 Cassette separation roller Bypass transport roller Cassette feed sensor Registration roller (metal) Cassette transport sensor Registration roller (rubber) Intermediate transport sensor Intermediate transport roller Registration sensor Transport roller — JUNE 2002 © TOSHIBA TEC 9 - 1 e-STUDIO550/650/810 PAPER FEEDING SYSTEM...
Page 125 (9) Registration sensor This sensor detects that the leading edge of paper has reached the registration roller and the trailing edge of paper has passed the registration roller. e-STUDIO550/650/810 PAPER FEEDING SYSTEM 9 - 2 JUNE 2002 © TOSHIBA TEC...
Page 126 This sensor detects the tray position when the trays of the cassette and tandem LCF go up. (11) Bottom sensor This sensor detects the tray bottom position of the cassette and tandem LCF. JUNE 2002 © TOSHIBA TEC 9 - 3 e-STUDIO550/650/810 PAPER FEEDING SYSTEM...
Page 127 When the cassette is inserted, the protrusion at the rear side of the cassette pushes the lever (a) to the direction of A. Then the pickup roller and roller holder are lowered by the spring force of (B). e-STUDIO550/650/810 PAPER FEEDING SYSTEM 9 - 4...
Page 128 A is transported to the direction of the arrow Separation roller ) and the paper B is braked by the separation roller and is not transported any further. JUNE 2002 © TOSHIBA TEC 9 - 5 e-STUDIO550/650/810 PAPER FEEDING SYSTEM...
Page 129 The transport clutch is turned OFF and the transport roller is stopped. • The registration motor and transport clutch are turned ON and paper is transported to the transfer unit. e-STUDIO550/650/810 PAPER FEEDING SYSTEM 9 - 6 JUNE 2002 © TOSHIBA TEC...
Page 130 (3) When either of the tandem LCF feed sensors is ON (there is paper at the transportation path) in turning ON the power, a paper jam is occuring and the operation is disabled until the paper is removed. JUNE 2002 © TOSHIBA TEC 9 - 7...
Page 131 (3) When a paper jam occurs in the paper feeder during multiple copying, the sheet that was fed before the jam is copied normally. e-STUDIO550/650/810 PAPER FEEDING SYSTEM 9 - 8 JUNE 2002 © TOSHIBA TEC...
Page 132 (there is no paper) and the corresponding message is displayed on the control panel. (5) The states (1) to (4) are cleared by removing the tray unit. JUNE 2002 © TOSHIBA TEC 9 - 9 e-STUDIO550/650/810 PAPER FEEDING SYSTEM...
Page 133 IN1 and IN2 are input terminals to receive the signals from the microcomputer. The control logic, based on the signals from the microcomputer, controls the rotation direction and ON/OFF of the motor. Input Output Remarks M (+) M (–) BRAKE OFF (high impedance) STOP e-STUDIO550/650/810 PAPER FEEDING SYSTEM 9 - 10 JUNE 2002 © TOSHIBA TEC...
Page 134 (5) Pull out the cassette or tandem LCF completely. Note: With failing that, sensors may be damaged. (6) Disconnect 1 connector, remove 3 screws and take off the feed unit. JUNE 2002 © TOSHIBA TEC 9 - 11 e-STUDIO550/650/810 PAPER FEEDING SYSTEM...
Page 135 (8) Remove 3 screws and take off the guide. Clip (9) Remove 1 clip and take off the feed roller. Feed roller (10)Remove 1 clip and take off the separation roller. Clip Separation roller e-STUDIO550/650/810 PAPER FEEDING SYSTEM 9 - 12 JUNE 2002 © TOSHIBA TEC...
Page 136 (2) Disconnect 1 connector, remove 1 screw and take off the transport sensor. Note: Make sure to put on the spring properly after replacing the sensors. Spring Spring JUNE 2002 © TOSHIBA TEC 9 - 13 e-STUDIO550/650/810 PAPER FEEDING SYSTEM...
Page 137 (2) Release the feed clutch and transport clutch. (3) Remove 2 screws and take off 2 brackets and 2 guides. Guide Guide (4) Remove 1 screw and take off the bracket. e-STUDIO550/650/810 PAPER FEEDING SYSTEM 9 - 14 JUNE 2002 © TOSHIBA TEC...
Page 138 (6) Disconnect 1 connector, remove 2 screw and take off the solenoid. [B] Transport unit Connector (1) Disconnect 1 connector and remove 2 screws to take off the transport unit. JUNE 2002 © TOSHIBA TEC 9 - 15 e-STUDIO550/650/810 PAPER FEEDING SYSTEM...
Page 139 2. Install the feed roller for the one-way clutch to come to the rear side. Plastic bushing Metal bushing Pickup roller e-STUDIO550/650/810 PAPER FEEDING SYSTEM 9 - 16 JUNE 2002 © TOSHIBA TEC...
Page 140 2. When installing the solenoid, fix it at the Bosses position where the bosses of two gears are put each other. 3. Put on the spring in the place shown by the figure. Spring JUNE 2002 © TOSHIBA TEC 9 - 17 e-STUDIO550/650/810 PAPER FEEDING SYSTEM...
Page 141 2 fixing brackets. Then take off the bypass tray. Fixing bracket (12)Remove 3 screws, release 4 latches and take Bypass tray upper cover off the bypass tray upper cover. Latch Latch e-STUDIO550/650/810 PAPER FEEDING SYSTEM 9 - 18 JUNE 2002 © TOSHIBA TEC...
Page 142 3. Be careful not to install the bypass pickup Pickup roller roller and feed roller in a wrong direction. Separation roller 4. Install the feed roller for the one-way clutch to come to the rear side. JUNE 2002 © TOSHIBA TEC 9 - 19 e-STUDIO550/650/810 PAPER FEEDING SYSTEM...
Page 143 Boss Tray-up motor [E] Feed motor (1) Remove the rear cover. (2) Disconnect 1 connector, remove 2 screws and take off the feed motor. e-STUDIO550/650/810 PAPER FEEDING SYSTEM 9 - 20 JUNE 2002 © TOSHIBA TEC...
Page 144 (1) Remove the power supply unit. (2) Remove 3 screws and take off the power cable connecting section. (3) Remove 6 screws and take off the feed drive unit. JUNE 2002 © TOSHIBA TEC 9 - 21 e-STUDIO550/650/810 PAPER FEEDING SYSTEM...
Page 145 (2) Lift the paper guide a little and insert it in the groove of the paper size marking. Then tighten up the screw after confirming the screw hole position. Paper size marking e-STUDIO550/650/810 PAPER FEEDING SYSTEM 9 - 22 JUNE 2002 © TOSHIBA TEC...
Page 146 (2) Lift the paper guide a little and insert it in the groove of the paper size marking. Then tighten up the screw after confirming the screw hole position. JUNE 2002 © TOSHIBA TEC 9 - 23 e-STUDIO550/650/810 PAPER FEEDING SYSTEM...
Page 147 (5) Release the latches from the back side of the tandem LCF cassette, and take off the end fence home position sensor and standby side empty sensor. Standby side empty sensor End fence home position sensor e-STUDIO550/650/810 PAPER FEEDING SYSTEM 9 - 24 JUNE 2002 © TOSHIBA TEC...
Page 148 Standby side Bracket (G-8) End fence motor (1) Disconnect 1 connector. (2) Remove 3 screws, and take off the end fence motor. Connector End fence motor JUNE 2002 © TOSHIBA TEC 9 - 25 e-STUDIO550/650/810 PAPER FEEDING SYSTEM...
Page 149 10. PROCESS RELATED SECTION 10. 1. Construction 10. 2. Functions 10. 3. Charger Wire Cleaner Operational Circuit 10. 4. High-voltage Transformer Output Control Circuit 10. 4. 1. General description 10. 4. 2. Operation 10. 5. Surface Potential Sensor 10. 5. 1. General description 10.
Page 150 • Exhaust duct The drum/cleaner unit, developer unit and transfer belt unit are described in other chapters. Charger wire cleaner Main charger Discharge lamp Surface patential sensor [Sectional view] JUNE 2002 © TOSHIBA TEC 10 - 1 e-STUDIO550/650/810 PROCESS RELATED SECTION...
Page 151 (6) Surface potential sensor The surface potential sensor detects the surface potential of the photoconductive drum and controls it to keep constant. e-STUDIO550/650/810 PROCESS RELATED SECTION 10 - 2 JUNE 2002 © TOSHIBA TEC...
Page 152 Forward rotation (Limit Home position) “H” level “H” level Brake Stop position switch input signal Signal Status “H” level “L” level MCLSW-0 (Stop position switch) Not detected Detected JUNE 2002 © TOSHIBA TEC 10 - 3 e-STUDIO550/650/810 PROCESS RELATED SECTION...
Page 153 * The adjustment of the Vc (changing of the adjusted data) is carried out at the adjustment mode. * The output value of the drum cleaning brush bias is fixed when the high-voltage transformer is delivered to the market. e-STUDIO550/650/810 PROCESS RELATED SECTION 10 - 4 JUNE 2002 © TOSHIBA TEC...
Page 154 J347-2 HVTVR Transfer J347-8 HVDVR Developer J347-5 HVMVR converter Main Gate array IC18 IC56 Main CPU BC-RAM IC58 IC27 JUNE 2002 © TOSHIBA TEC 10 - 5 e-STUDIO550/650/810 PROCESS RELATED SECTION...
Page 155 If the potential is out of the control allowable level, the main grid voltage to be changed is calculated from the difference between the targeted value and detection value. The output value of the main grid voltage is changed. e-STUDIO550/650/810 PROCESS RELATED SECTION 10 - 6 JUNE 2002 © TOSHIBA TEC...
Page 156 (3) Control when finishing printing job When the printing job has finished, the control is carried out following (1) at the previous page and the printing operation ends within the control allowable level. JUNE 2002 © TOSHIBA TEC 10 - 7 e-STUDIO550/650/810 PROCESS RELATED SECTION...
Page 157 (4) Release 1 latch and take off the front side Terminal cover terminal cover. Latch (5) Release 2 latches and take off the rear side Latch Terminal cover terminal cover. e-STUDIO550/650/810 PROCESS RELATED SECTION 10 - 8 JUNE 2002 © TOSHIBA TEC...
Page 158 [B] Wire cleaner drive unit Main charger (1) Remove the main charger and cleaner unit. (2) Disconnect 1 connector, remove 1 screw and take off the charger guide. Charger guide Cleaner unit JUNE 2002 © TOSHIBA TEC 10 - 9 e-STUDIO550/650/810 PROCESS RELATED SECTION...
Page 159 (2) Disconnect 1 connector, remove 1 screw and take off the discharge lamp. Connector [D] Ozone filter (1) Remove 1 screw and pull out the ozone filter at the exit side. e-STUDIO550/650/810 PROCESS RELATED SECTION 10 - 10 JUNE 2002 © TOSHIBA TEC...
Page 160 [F] Temperature/humidity sensor (1) Take off the control panel unit ( Chap.5.5). (2) Disconnect 1 connector, remove 1 screw and take off the temperature humidity sensor. Temperature/humidity sensor JUNE 2002 © TOSHIBA TEC 10 - 11 e-STUDIO550/650/810 PROCESS RELATED SECTION...
Page 161 (5) Remove 2 screws and take off the exit fan with the bracket. (6) Remove 2 screws and release the exit fan from the bracket. Exit fan e-STUDIO550/650/810 PROCESS RELATED SECTION 10 - 12 JUNE 2002 © TOSHIBA TEC...
Page 162 11. DRUM/CLEANER UNIT 11. 1. Construction 11. 2. Functions 11. 3. Drum Temperature Detection Circuit 11. 4. Image Quality Control 11. 4. 1. General description 11. 4. 2. Principle of sensor 11. 4. 3. Outline of control 11. 4. 4. Construction 11.
Page 163: Drum Thermistor
Drum cleaning blade Drum thermistor Drum Drum cleaning brush Recovered toner transport auger Drum recovery blade Image quality sensor Drum separation finger [Sectional view] G17/30 [Drive system] JUNE 2002 © TOSHIBA TEC 11 - 1 e-STUDIO550/650/810 DRUM/CLEANER UNIT...
Page 164 Drum temperature detection circuit At this detection circuit, the voltage gained by the R33 and thermistor is input into the A/D converter of IC 58 to detect the drum surface temperature. e-STUDIO550/650/810 DRUM/CLEANER UNIT 11 - 2 JUNE 2002 © TOSHIBA TEC...
Page 165: Image Quality Control
A relative reflectivity is assessed by the reflected light amount obtained by the image quality sensor. Image quality sensor Light source intensity signal Reflected light intensity signal Light emitting element Light sensing element Test pattern (toner image) Drum JUNE 2002 © TOSHIBA TEC 11 - 3 e-STUDIO550/650/810 DRUM/CLEANER UNIT...
Page 166 (Is the toner amount of the test pattern within the permissible amount?) [6] Changing of the image formation condition [7] Finish controlling (Reflecting the determined image formation condition to the following printing) e-STUDIO550/650/810 DRUM/CLEANER UNIT 11 - 4 JUNE 2002 © TOSHIBA TEC...
Page 167 Image formation process system Laser exposure Main charger Developing Drum Image quality sensor Test pattern Reflected light Light source amount signal amount signal Various image formation conditions Main CPU JUNE 2002 © TOSHIBA TEC 11 - 5 e-STUDIO550/650/810 DRUM/CLEANER UNIT...
Page 168 (2) Turn the cam to release the pressure of the Drum shaft cleaning blade. (3) Remove 1 screw and take off the drum shaft. (4) Pull out the drum upward. e-STUDIO550/650/810 DRUM/CLEANER UNIT 11 - 6 JUNE 2002 © TOSHIBA TEC...
Page 169 (3) Turn over the cleaning blade with holding the bracket. (4) Remove 1 screw. (5) Pull out the cleaning blade with holding each foot of 2 screws. Foot of screw JUNE 2002 © TOSHIBA TEC 11 - 7 e-STUDIO550/650/810 CLEANER UNIT...
Page 170 (1) Pull out the rear side holding shaft and take off the cleaning brush. Holding shaft Cleaning brush [F] Drum separation finger (1) Remove 2 screws and take off the plate at the rear side. Plate e-STUDIO550/650/810 DRUM/CLEANER UNIT 11 - 8 JUNE 2002 © TOSHIBA TEC...
Page 171 Separation finger [G] Image quality sensor (1) Remove 2 screws and take off the sensor with the bracket. (2) Remove 2 screws and take off the image Connector quality sensor. JUNE 2002 © TOSHIBA TEC 11 - 9 e-STUDIO550/650/810 CLEANER UNIT...
Page 172 (4) Remove 3 screws and take off the motor. Connector Note: When installing the drum motor, fix it keeping the bracket in the direction of the white arrow. e-STUDIO550/650/810 DRUM/CLEANER UNIT 11 - 10 JUNE 2002 © TOSHIBA TEC...
Page 173: Developer Unit
12. DEVELOPER UNIT 12. 1. Construction 12. 2. Functions 12. 3. Developer Unit Drive 12. 4. Motor Drive Circuit 12. 4. 1. Toner motor 12. 4. 2. Developer motor 12. 5. Auto-toner Sensor Circuit 12. 5. 1. General description 12. 5. 2. Operation of auto-toner sensor 12.
Page 174 • Developer unit drive section Upper developer sleeve Lower developer sleeve Transport sleeve Drum Doctor blade Mixer unit Auto-toner sensor Paddle Scattered toner recovery roller [Developer unit sectional view] JUNE 2002 © TOSHIBA TEC 12 - 1 e-STUDIO550/650/810 DEVELOPER UNIT...
Page 176 Scattered toner recovery roller This is a roller for trapping and recovering the toner scattered from the developer sleeve not to get outside of the developer unit. JUNE 2002 © TOSHIBA TEC 12 - 3 e-STUDIO550/650/810 DEVELOPER UNIT...
Page 177 (G17) (G31) [Rear side] Transport sleeve gear Idle gear (G23) (G19) Front paddle gear Scattered toner Idle gear Idle gear recovery roller gear (G18/16) (G20) (G30/16) (G20) [Front side] e-STUDIO550/650/810 DEVELOPER UNIT 12 - 4 JUNE 2002 © TOSHIBA TEC...
Page 178 Idle gear Rear paddle gear Mixer-1 Idle gear developer sleeves Mixer-2 Transport Idle gear Front paddle gear sleeve Front side Idle gear Idle gear Scattered toner Idle gear recovery roller JUNE 2002 © TOSHIBA TEC 12 - 5 e-STUDIO550/650/810 DEVELOPER UNIT...
Page 179 Gate array driver New toner supply motor TRSM1B-0 IC38 IC56 Signal level for motor circuit Signal State TRSM1A-0 TRSM1B-0 Level CW (when supplying toner) CCW (detecting cartridge installation) Brake e-STUDIO550/650/810 DEVELOPER UNIT 12 - 6 JUNE 2002 © TOSHIBA TEC...
Page 180 That is, the FG pulse and reference frequency are controlled to be equal. The developer motor rotates at a constant speed (locked range state). (8) When the DEVON signal changes to “H” level, the developer motor stops. JUNE 2002 © TOSHIBA TEC 12 - 7 e-STUDIO550/650/810 DEVELOPER UNIT...
Page 181 This signal is the motor ON/OFF control signal. When it becomes “L” level, the motor rotates. Signal level for motor circuit Signal “H” level “L” level DEVCK Reference clock (821.2Hz) DEVON Motor OFF Motor ON e-STUDIO550/650/810 DEVELOPER UNIT 12 - 8 JUNE 2002 © TOSHIBA TEC...
Page 182 PWA-LGC motor motor toner toner converter IC56 IC18 Control LCA301 MB88347 voltage Main signal Toner density signal IC58 Auto-toner sensor 95C063F TA8428 IC38 Developer material Developer unit TA8428 IC37 JUNE 2002 © TOSHIBA TEC 12 - 9 e-STUDIO550/650/810 DEVELOPER UNIT...
Page 183 DC conversion circuit : Converting the figh-frequency output from the detection winding to a DC signal Magnetic resistance Auto-toner output Drive Detection Main CPU conversion winding winding circuit (LGC) (Developer material) Magnetic circuit e-STUDIO550/650/810 DEVELOPER UNIT 12 - 10 JUNE 2002 © TOSHIBA TEC...
Page 184 Auto-toner output V increased When the toner density is high: Toner ratio to the carrier in the developer material increased Magnetic resistance increased Detection output decreased Auto-toner output V decreased JUNE 2002 © TOSHIBA TEC 12 - 11 e-STUDIO550/650/810 DEVELOPER UNIT...
Page 185 (1) Remove 3 screws and take off the top cover. Toner cartridge switch (2) Disconnect 1 connector, remove 2 screws and take off the new toner supply motor. New toner supply motor Connector e-STUDIO550/650/810 DEVELOPER UNIT 12 - 12 JUNE 2002 © TOSHIBA TEC...
Page 186 Transport motor Connector (1) Disconnect 2 connectors. (2) Remove 2 screws and take off the transport motor. (3) Remove 2 screws and take off the hopper motor. Hopper motor JUNE 2002 © TOSHIBA TEC 12 - 13 e-STUDIO550/650/810 DEVELOPER UNIT...
Page 187 (3) Tilt the developer unit and get out the Gear developer material with turning the rear side gear. (4) Put in a new material. (5) Turn the rear side gear several times to uniform the material. Gear e-STUDIO550/650/810 DEVELOPER UNIT 12 - 14 JUNE 2002 © TOSHIBA TEC...
Page 188 This procedure makes it unnecessary to adjust the doctor-sleeve gap. [G] Auto-toner sensor Auto-toner sensor (1) Remove the developer material. (2) Remove 2 screws and take off the auto-toner sensor. JUNE 2002 © TOSHIBA TEC 12 - 15 e-STUDIO550/650/810 DEVELOPER UNIT...
Page 189 (9) Remove 2 E-rings and take off 2 guide rollers. Guide roller Note: When installing the guide roller, pay attention to its color (upside: white, downside: black). Bias plate e-STUDIO550/650/810 DEVELOPER UNIT 12 - 16 JUNE 2002 © TOSHIBA TEC...
Page 190 (6) Remove both the upper and lower developer sleeves with the holders. Bearring, E-ring, Gear, Parallel pin (7) Take off 2 pole position fixing bushings and Pole position fixing bushing remove 2 E-rings. JUNE 2002 © TOSHIBA TEC 12 - 17 e-STUDIO550/650/810 DEVELOPER UNIT...
Page 191 (3) If necessary, replace the oil seal that is pressed in the front side of the frame. * Procedure for replacing an oil seal: Page 12-20 Gear Bearing E-ring e-STUDIO550/650/810 DEVELOPER UNIT 12 - 18 JUNE 2002 © TOSHIBA TEC...
Page 192 (2) Remove 1 E-ring and pull out the rear side paddle bushing. (3) If necessary, replace the oil seal that is pressed in the paddle bushing. Paddle bushing E-ring JUNE 2002 © TOSHIBA TEC 12 - 19 e-STUDIO550/650/810 DEVELOPER UNIT...
Page 193 3. Spread the grease (Albania No.2; about 2-rice-grain’s amount) all round the inside Oil seal diameter. Note: Wipe off the grease which has run off to the inner side of the oil seal. e-STUDIO550/650/810 DEVELOPER UNIT 12 - 20 JUNE 2002 © TOSHIBA TEC...
Page 194 (2) Pull out the toner filter. (3) Remove 2 screws and pull out the filter duct. (4) Disconnect 1 connector of the fan. Filter duct (5) Remove 3 screws and take off the fan. JUNE 2002 © TOSHIBA TEC 12 - 21 e-STUDIO550/650/810 DEVELOPER UNIT...
Page 195 13. TRANSFER/TRANSPORT UNIT 13. 1. General Description 13. 2. Operation 13. 3. Functions 13. 4. Disassembly and Replacement...
Page 196: Transfer/Transport Unit
After printing ends, the transfer belt is lowered and separated from the photoconductive drum to stand by again. JUNE 2002 © TOSHIBA TEC 13 - 1 e-STUDIO550/650/810 TRANSFER/TRANSPORT UNIT...
Page 197: Functions
The transport guide guides the paper that is held in contact by static electricity to the fuser unit. It is made of the material that prevents electrification caused by the friction with the paper. e-STUDIO550/650/810 TRANSFER/TRANSPORT UNIT 13 - 2 JUNE 2002 © TOSHIBA TEC...
Page 198 • The transfer belt is separated from/brought in touch with the photoconductive drum by handling the lever vertically. • The cam phases are controlled by two sensors. (12) Duplex printing transport section When carrying out a duplex printing, reversed paper goes through this section. JUNE 2002 © TOSHIBA TEC 13 - 3 e-STUDIO550/650/810 TRANSFER/TRANSPORT UNIT...
Page 199: Disassembly And Replacement
Then remove 4 screws and take off the transfer belt unit. Note: When installing the transfer belt unit, install it as Lever the lever comes under the cam. e-STUDIO550/650/810 TRANSFER/TRANSPORT UNIT 13 - 4 JUNE 2002 © TOSHIBA TEC...
Page 200 Notes: 1. When installing the transfer belt, install it at the center not to be moved aside. 2. Do not touch the surface of the belt with bare hands. JUNE 2002 © TOSHIBA TEC 13 - 5 e-STUDIO550/650/810 TRANSFER/TRANSPORT UNIT...
Page 201 2. Do not touch the blade with bare hands and make any scar on it. 3. Be careful not to mash the urethan seals at Urethan seal both sides. e-STUDIO550/650/810 TRANSFER/TRANSPORT UNIT 13 - 6 JUNE 2002 © TOSHIBA TEC...
Page 202 (3) Remove 2 shoulder screws fixed at both sides slide rails. (4) Hold the A(shaft) or B(stay) section with the left hand and the right slide rail with the right hand. JUNE 2002 © TOSHIBA TEC 13 - 7 e-STUDIO550/650/810 TRANSFER/TRANSPORT UNIT...
Page 203 4) Hang the transfer/transport unit on the right slide rail firmly. 5) Fix the transfer/transport unit with 2 shoulder screws. 6) Follow the reverse procedure of disassembling afterwards. e-STUDIO550/650/810 TRANSFER/TRANSPORT UNIT 13 - 8 JUNE 2002 © TOSHIBA TEC...
Page 204 2. When fitting the E-rings on the clutches, make sure that the latches of E-ring do not protrude on the flat part of shaft. Black Drive clutch JUNE 2002 © TOSHIBA TEC 13 - 9 e-STUDIO550/650/810 TRANSFER/TRANSPORT UNIT...
Page 205 (3) Disconnect the connector and take off 2 sensors. Green board Silver board Note: When replacing each sensor, pay attention to the board color (shown in the right figure) and direction. e-STUDIO550/650/810 TRANSFER/TRANSPORT UNIT 13 - 10 JUNE 2002 © TOSHIBA TEC...
Page 206: Fuser Unit
14. FUSER UNIT 14. 1. General Description 14. 2. Operation 14. 3. Functions 14. 4. Heater Control Circuit 14. 4. 1. Configuration 14. 4. 2. Heating principle of IH coil 14. 4. 3. IH control circuit interface 14. 4. 4. IH control circuit abnormalities 14.
Page 207 The thermistor detects the fuser roller temperature to control it, and when the temperature becomes abnormally high, which is detected by the thermostat, the power supply to the IH coil is cut off. JUNE 2002 © TOSHIBA TEC 14 - 1...
Page 208 The exit roller of the fuser unit discharges the paper separated from the fuser and pressure rollers with the separation fingers through the fuser unit. (8) Fuser unit exit sensor e-STUDIO550/650/810 FUSER UNIT 14 - 2 JUNE 2002 © TOSHIBA TEC...
Page 209 The thermostats of this copier are used to prevent abnormal operations, and when they detect any abnormality, they must be replaced altogether with the other damaged parts of the fuser unit. JUNE 2002 © TOSHIBA TEC 14 - 3 e-STUDIO550/650/810 FUSER UNIT...
Page 210 14. 4. Heater Control Circuit 14. 4. 1. Configuraton e-STUDIO550/650/810 FUSER UNIT 14 - 4 JUNE 2002 © TOSHIBA TEC...
Page 211 (IGBT) IGBT drive Current input Voltage I/F circuit on LGC board Monitoring input current input Monitoring input current [Block diagram of high fequency power supply (IH control board)] JUNE 2002 © TOSHIBA TEC 14 - 5 e-STUDIO550/650/810 FUSER UNIT...
Page 212 J552-7 H2PWR2 J552-8 H2PWR3 J553-1 IH1ON HOST to IH ON/OFF signal J553-2 J553-3 IHDUTY HOST to IH ON duty signal J553-4 IHERR1 HOST to IH Error signal J553-5 IHERR2 e-STUDIO550/650/810 FUSER UNIT 14 - 6 JUNE 2002 © TOSHIBA TEC...
Page 213 CPU decides the error code and counter value of the fuser roller thermistor error status after detecting the abnormal temperature at the thermistor. * Abnormal temperature Center thermistor : 230°C Side thermistor (rear) : 240°C Side thermistor (front): 270°C JUNE 2002 © TOSHIBA TEC 14 - 7 e-STUDIO550/650/810 FUSER UNIT...
Page 214 If the output voltage of either the center thermistor or side thermistor (rear) does not go over approx. 0.5V(40°C) even in a certain period of time after the heater has turned ON, the “Call for service” [C41] is displayed. e-STUDIO550/650/810 FUSER UNIT 14 - 8 JUNE 2002 © TOSHIBA TEC...
Page 215 BCRAM or BCRAM itself may have been ruined due to causes such as leakage from the chargers. Check the bias, high-voltage transformers and charge wires to see if any of them is defective, and also look through all the data in the BCRAM. JUNE 2002 © TOSHIBA TEC 14 - 9 e-STUDIO550/650/810 FUSER UNIT...
Page 216 The resistance of the thermistor changes. The input voltage changes. · The main CPU detects this change of the input voltage to decide if the thermistor is abnormal or not. e-STUDIO550/650/810 FUSER UNIT 14 - 10 JUNE 2002 © TOSHIBA TEC...
Page 217 (9) During standby, the HTRML level changes to “L” if the temperature of the pressure roller drops below the reference temperature, and the fuser motor rotates at a low speed. JUNE 2002 © TOSHIBA TEC 14 - 11 e-STUDIO550/650/810 FUSER UNIT...
Page 218 This signal is the fuser motor ON/OFF control signal. When the signal changes to “L”, the fuser motor is turned ON. Signal level for motor circuit Signal “H” level “L” level HTRCK Reference clock (1247.6Hz) HTRMT Motor OFF Motor low-speed ON HTRML Motor OFF Motor ON e-STUDIO550/650/810 FUSER UNIT 14 - 12 JUNE 2002 © TOSHIBA TEC...
Page 219 IGBT in turning on electricity at which it becomes high-voltage. (4) Disconnect 4 connectors, remove 9 screws, and take off the IH control board. Connector (Yellow) Connector Connector (White) JUNE 2002 © TOSHIBA TEC 14 - 13 e-STUDIO550/650/810 FUSER UNIT...
Page 220 (2) Remove 4 E-rings and take off the cleaning web. (3) Remove 2 E-rings and take off the bushing and E-ring Cleaning web gear. Caution:Be carefull not to slack off the cleaning web when installing it. E-ring E-ring e-STUDIO550/650/810 FUSER UNIT 14 - 14 JUNE 2002 © TOSHIBA TEC...
Page 221 (03-124) since the cleaning web may be slacked off when rolled up. Full Note: Approximate remaining web can be seen through the window at the fuser unit (shown by the right figure). JUNE 2002 © TOSHIBA TEC 14 - 15 e-STUDIO550/650/810 FUSER UNIT...
Page 222 (4) Pull out the IH coil. Note: Make sure that the “C” and “S” harnesses of the power supply harness comes to the left side when installing the IH coil. e-STUDIO550/650/810 FUSER UNIT 14 - 16 JUNE 2002 © TOSHIBA TEC...
Page 223 (1) Remove 2 screws and open the guide. Cleaning roller (metal) Spring (2) Remove the cleaning roller (metal). (3) Remove each spring and take off each lower separation finger. Lower separation finger JUNE 2002 © TOSHIBA TEC 14 - 17 e-STUDIO550/650/810 FUSER UNIT...
Page 224 (1) Remove 2 screws and open the entrance lower guide unit. Entrance lower guide unit (2) Remove the cleaning roller (felt). Cleaning roller (felt) [H] Thermistor/Thermostat (1) Loosen 2 pressure screws completely. e-STUDIO550/650/810 FUSER UNIT 14 - 18 JUNE 2002 © TOSHIBA TEC...
Page 225 2.0~2.5mm between 2~2.5mm. [I] Fuser roller (1) Loosen 2 pressure screws completely. (2) Remove 2 screws and take off the fuser unit cover (rear). Fuser unit cover (rear) JUNE 2002 © TOSHIBA TEC 14 - 19 e-STUDIO550/650/810 FUSER UNIT...
Page 226 (6) Remove 1 E-ring and take off the gear. Bearing (rear) (7) Remove 2 screws and take off the bearing (rear). Gear (8) Remove 1 C-ring (front). C-ring (front) e-STUDIO550/650/810 FUSER UNIT 14 - 20 JUNE 2002 © TOSHIBA TEC...
Page 227 (1) Remove the fuser roller and take off pressure roller. [K] Web detection sensor (1) Remove the fuser unit cover (front). (2) Remove 1 screw and take off the web detection sensor with the bracket. JUNE 2002 © TOSHIBA TEC 14 - 21 e-STUDIO550/650/810 FUSER UNIT...
Page 228 15. EXIT/REVERSE SECTION 15. 1. General Description 15. 2. Operation 15. 3. Disassembly and Replacement...
Page 230 (a) 3 sheets × 1 copy Single-sided printing operation (A4/LT) Step 1 Step 6 Step 2 Step 7 Step 8 Step 3 Step 4 Step 5 e-STUDIO550/650/810 EXIT/REVERSE SECTION 15 - 2 JUNE 2002 © TOSHIBA TEC...
Page 231 (b) 5 sheets × 1 copy Duplex printing operation (A4/LT) Step 1 Step 6 Step 2 Step 7 Step 8 Step 3 Step 9 Step 4 Step 10 Step 5 JUNE 2002 © TOSHIBA TEC 15 - 3 e-STUDIO550/650/810 EXIT/REVERSE SECTION...
Page 232 (c) 3 sheets × 1 copy Single-sided printing operation (A3/LD/B4/LG/A4-R/LT-R) Step 1 Step 6 Step 2 Step 7 Step 8 Step 3 Step 9 Step 4 Step 5 e-STUDIO550/650/810 EXIT/REVERSE SECTION 15 - 4 JUNE 2002 © TOSHIBA TEC...
Page 233 (d) 4 sheets × 1 copy Duplex printing operation (A3/LD/B4/LG/A4-R/LT-R) Step 1 Step 6 Step 2 Step 7 Step 8 Step 3 Step 9 Step 4 Step 10 Step 5 JUNE 2002 © TOSHIBA TEC 15 - 5 e-STUDIO550/650/810 EXIT/REVERSE SECTION...
Page 234 Connector [B] Reverse section fan (1) Remove the exit side cover. (2) Disconnect 1 connector, remove 2 screws and take off the fans. Connector e-STUDIO550/650/810 EXIT/REVERSE SECTION 15 - 6 JUNE 2002 © TOSHIBA TEC...
Page 235 (1) Remove the reverse section drive unit. (2) Disconnect 1 connector, remove 6 screws and take off the transport guide. Connector (3) Disconnect 1 connector, remove 2 screws and Connector take off the reverse motor. JUNE 2002 © TOSHIBA TEC 15 - 7 e-STUDIO550/650/810 EXIT/REVERSE SECTION...
Page 236 (3) Move the exit roller to the near side and install 2 O-rings to the grooves of the exit roller. Note: O-ring: Refer to the parts list for the parts number and so on. O-ring e-STUDIO550/650/810 EXIT/REVERSE SECTION 15 - 8 JUNE 2002 © TOSHIBA TEC...
Page 237 16. REVERSING AUTOMATIC DOCUMENT FEEDER (RADF) 16. 1. General Description 16. 2. Construction 16. 3. Drive System 16. 4. Signal Block Diagram 16. 5. Operations 16. 5. 1. A4 single-sided feeding (Operational condition: A4 paper/Rreproduction ratio: 100%) 16. 5. 2. A4 double-sided feeding (Operational condition: A4 paper/Reproduction ratio: 100%) 16.
Page 238 3rd roller Small original reverse flapper Read roller Small original exit flapper Reverse flapper Note: Large-sized original: A3, B4, LD, LG Small-sized original: A4, A4-R, B5, B5-R, A5-R, LT, LT-R, ST-R JUNE 2002 © TOSHIBA TEC 16 - 1 e-STUDIO550/650/810 RADF...
Page 239 • Large original exit motor • Disengagement solenoid • Large original exit solenoid • Small original exit solenoid • RADF open/close sensor • APS operation sensor • Cover open/close switch • RADF open/close switch e-STUDIO550/650/810 RADF 16 - 2 JUNE 2002 © TOSHIBA TEC...
Page 240: Drive System
Feed motor rotates clockwise to feed originals. Front (2) Feed motor rotating in reverse (seen in front) One-way pulley idling One-way pulley lock Rear Feed motor rotates counterclockwise to feed originals. Front JUNE 2002 © TOSHIBA TEC 16 - 3 e-STUDIO550/650/810 RADF...
Page 241 Small original exit roller Large original exit roller Small original Intermediate reverse roller transport roller Large original exit motor rotates countericlockwise to discharge and reverse originals. Front e-STUDIO550/650/810 RADF 16 - 4 JUNE 2002 © TOSHIBA TEC...
Page 242 Lifting tray (6) Tray lift motor rotating in reverse (seen in front) Tray lift motor Tray lift motor rotates counterclockwise to lift the tray. LIfting tray JUNE 2002 © TOSHIBA TEC 16 - 5 e-STUDIO550/650/810 RADF...
Page 243 The data communication (RxD and TxD) between the copier and RADF is adopting a serial communication system which makes it impossible to check with a testing device whether signals are sent/received properly. e-STUDIO550/650/810 RADF 16 - 6 JUNE 2002 © TOSHIBA TEC...
Page 244 The feed motor stops rotating when the original has been transported a specified distance after the registration sensor had detected the leading edge of the original. From 2nd original, feeding starts after the admission signal to start feeding is received. JUNE 2002 © TOSHIBA TEC 16 - 7 e-STUDIO550/650/810 RADF...
Page 245 Feeding of 2nd original starts when the original has been transported a specified distance by the read motor after the original length sensor had detected the trailing edge of the original. e-STUDIO550/650/810 RADF 16 - 8 JUNE 2002 © TOSHIBA TEC...
Page 246 When the leading edge of the original has been transported to the intermediate transport section and come to a specified distance before the intermediate transport roller, The large original exit motor starts to rotate in reverse. JUNE 2002 © TOSHIBA TEC 16 - 9 e-STUDIO550/650/810 RADF...
Page 247 When the trailing edge of the original has come to a specified distance before the small original exit roller, the small original exit motor starts to slow down. e-STUDIO550/650/810 RADF 16 - 10 JUNE 2002 © TOSHIBA TEC...
Page 248 When the original has proceeded a specified distance after the small original exit sensor had detected the trailing edge of the original, the small original exit motor stops rotating. Then the operation ends after 2nd original has been discharged. JUNE 2002 © TOSHIBA TEC 16 - 11 e-STUDIO550/650/810 RADF...
Page 249 Then the original is nipped by the large original exit roller. e-STUDIO550/650/810 RADF 16 - 12 JUNE 2002 © TOSHIBA TEC...
Page 250 The SCN-STR turns ON when the leading edge of the original has reached the scanning section. The large original exit motor stops rotating when the disengagement solenoid has turned ON. JUNE 2002 © TOSHIBA TEC 16 - 13 e-STUDIO550/650/810 RADF...
Page 251 3rd roller, the disengagement solenoid turns ON. The large original exit motor starts to slow down when the trailing edge of 1st original has passed the intermediate transport roller. e-STUDIO550/650/810 RADF 16 - 14 JUNE 2002 © TOSHIBA TEC...
Page 252 (10) Start of 2nd original back side registering Same operation as (6) (11) Start of 2nd original back side feeding Same operation as (7) JUNE 2002 © TOSHIBA TEC 16 - 15 e-STUDIO550/650/810 RADF...
Page 253 Then it stops rotating when the trailing edge of the original has been detected by the small original reverse sensor and proceeded a specified distance. e-STUDIO550/650/810 RADF 16 - 16 JUNE 2002 © TOSHIBA TEC...
Page 254 The small original exit motor stops rotating when the trailing edge of the original has been detected by the small original exit sensor then proceeded a specified distance. The small original exit solenoid turns OFF and the operation ends when the original has been discharged. JUNE 2002 © TOSHIBA TEC 16 - 17 e-STUDIO550/650/810 RADF...
Page 255 They stop rotating and the original stop signal turns ON when the leading edge of the original has been detected by the read sensor then proceeded a specified distance. e-STUDIO550/650/810 RADF 16 - 18 JUNE 2002 © TOSHIBA TEC...
Page 256 When the trailing edge of the original has passed the scanning section, the SCN-STR turns OFF and both the read and large original exit motors start to accelerate. Feeding of 2nd original begins when the trailing edge of the original has passed the 4th roller. JUNE 2002 © TOSHIBA TEC 16 - 19 e-STUDIO550/650/810 RADF...
Page 257 When the trailing edge of the original has passed the scanning section, the SCN-STR turns OFF and both the read and large original exit motors start to accelerate. e-STUDIO550/650/810 RADF 16 - 20 JUNE 2002 © TOSHIBA TEC...
Page 258 The large original exit motor stops rotating when the trailing edge of the original has been detected by the large original exit sensor then proceeded a specified distance. The large original exit solenoid turns OFF and the operation ends when the original has been discharged. JUNE 2002 © TOSHIBA TEC 16 - 21 e-STUDIO550/650/810 RADF...
Page 259 The empty sensor detects whether or not there is a next original when a specified time passes after the registration sensor has detected the trailing edge of the original. With a next original, separating of the next original begins. e-STUDIO550/650/810 RADF 16 - 22 JUNE 2002 © TOSHIBA TEC...
Page 260 ON from 1st original.) The SCN-STR turns ON when the leading edge of the original has reached the scanning section. The large original exit motor stops when the disengagement solenoid has turned ON. JUNE 2002 © TOSHIBA TEC 16 - 23 e-STUDIO550/650/810 RADF...
Page 261 Then the original is nipped by the large original exit roller. e-STUDIO550/650/810 RADF 16 - 24 JUNE 2002 © TOSHIBA TEC...
Page 262 Then the original is discharged. Both the read and feed motors stop rotating when 2nd original has reached the scanning waiting position. JUNE 2002 © TOSHIBA TEC 16 - 25 e-STUDIO550/650/810 RADF...
Page 263 Then the original is nipped by the large original exit roller. e-STUDIO550/650/810 RADF 16 - 26 JUNE 2002 © TOSHIBA TEC...
Page 264 The large original exit motor stops rotating when the trailing edge of the original has been detected by the large original exit sensor and proceeded a specified distance. The large original exit solenoid turns OFF and the operation ends when the original has been discharged. JUNE 2002 © TOSHIBA TEC 16 - 27 e-STUDIO550/650/810 RADF...
Page 265 Without it, the tray lift motor starts to rotate to lower the tray and the original set signal is reset. The tray lift motor stops rotating when the lower limit sensor has detected the tray. e-STUDIO550/650/810 RADF 16 - 28 JUNE 2002 © TOSHIBA TEC...
Page 266 The original is nipped by the large original exit roller. JUNE 2002 © TOSHIBA TEC 16 - 29 e-STUDIO550/650/810 RADF...
Page 267 Then the disengaEgement solenoid turns OFF. With a next original, feeding of the original begins when the trailing edge of the original has passed the 4th roller. e-STUDIO550/650/810 RADF 16 - 30 JUNE 2002 © TOSHIBA TEC...
Page 268 Then the original is discharged. If this is the last original, the operation ends when the large original exit solenoid turns OFF. JUNE 2002 © TOSHIBA TEC 16 - 31...
Page 269 The setting value for the jam pulse is the equivalent number of pulses it takes for an original to proceed the distance from the original length sensor to the registration sensor plus 60mm. e-STUDIO550/650/810 RADF 16 - 32 JUNE 2002 © TOSHIBA TEC...
Page 270 The setting value for the jam pulse is the equivalent number of pulses it takes for an original to proceed the distance from the 4th roller to the large original exit sensor plus 30mm. JUNE 2002 © TOSHIBA TEC 16 - 33...
Page 271 20mm short of the small original reverse sensor, starts until an original passes through the small original reverse sensor. • Jam timer setting The setting value for the jam timer is the time mentioned above plus necessary time for an original to proceed 60mm. e-STUDIO550/650/810 RADF 16 - 34 JUNE 2002 © TOSHIBA TEC...
Page 272 20mm short of the small original exit sensor, starts until an original passes through the small original exit sensor. • Jam timer setting The setting value for the jam timer is the time mentioned above plus necessary time for an original to proceed 60mm. JUNE 2002 © TOSHIBA TEC 16 - 35 e-STUDIO550/650/810 RADF...
Page 273 The setting value for the jam pulse is the equivalent number of pulses it takes for the trailing edge of an original to proceed the distance from the position 20mm further from the 3rd roller to the intermediate transport sensor plus 60mm. e-STUDIO550/650/810 RADF 16 - 36 JUNE 2002 © TOSHIBA TEC...
Page 274 The tray lift motor error occurs when a feeding jam because of which the upper limit/lower limit cannot be detected within a specified time while lifting/lowering the tray takes place 3 times continuously. JUNE 2002 © TOSHIBA TEC 16 - 37 e-STUDIO550/650/810 RADF...
Page 275 In this case, the size is decided by taking into consideration the feed motor pulses counted during the time after the original is idle reversed until it passes through the original length sensor and transmitted to the copier. e-STUDIO550/650/810 RADF 16 - 38 JUNE 2002 © TOSHIBA TEC...
Page 276 B5-R A4-R FOLIO ~314 A4-R ~357 FOLIO 357~ A4-R ~268 ~277 B5-R ~314 A4-R ~357 FOLIO 357~ 268~ A4-R FOLIO ~314 A4-R ~357 FOLIO 357~ A4-R ~114 A5-R 114~ A4-R JUNE 2002 © TOSHIBA TEC 16 - 39 e-STUDIO550/650/810 RADF...
Page 277 ~343 13”LG ~394 394~ ~268 8.5”x8.5” 8.5”x8.5” LT-R ~305 LT-R ~343 13”LG ~394 394~ COMP COMP 268~ 8.5”x8.5” LT-R ~305 LT-R ~343 13”LG ~394 394~ COMP ~110 ST-R 110~ LT-R e-STUDIO550/650/810 RADF 16 - 40 JUNE 2002 © TOSHIBA TEC...
Page 278 16. 9. Flow Chart (1) Power ON → Start of communication line Power ON Jig board installed? Data read from EEPROM Program rewritten Cover closed? Sensor adjusted Communication started JUNE 2002 © TOSHIBA TEC 16 - 41 e-STUDIO550/650/810 RADF...
Page 279 Failure of deleting flash ROM Flash ROM rewritten displayed on LED Flash ROM rewriting succeeded? Success of rewriting Failure of rewriting displayed on LED displayed on LED Flash ROM rewriting completed e-STUDIO550/650/810 RADF 16 - 42 JUNE 2002 © TOSHIBA TEC...
Page 280 (3) Start of communication line → Operation monitoring Operation started Cover closed? All sensors OFF? Operation completed? Initialization Cover opened? Initialization Finished due to jam? detected jam? Cover open? Original setting signal received? Cover opened? JUNE 2002 © TOSHIBA TEC 16 - 43 e-STUDIO550/650/810 RADF...
Page 281 Large original exit motor reverse rotation Small original exit motor forward rotation For paper no removal detection, specified time passed? Original found on the transporting path? Paper no removal detection Initialization completed e-STUDIO550/650/810 RADF 16 - 44 JUNE 2002 © TOSHIBA TEC...
Page 282 Specified pulse passed? Original length sensor ON? Feed motor forward rotation Feed motor stopped Lifting tray down Pre-feeding control from registration roller started Pre-feeding trailing edge control started Control for Separation completed JUNE 2002 © TOSHIBA TEC 16 - 45 e-STUDIO550/650/810 RADF...
Page 283 Control for leading edge Reached the 1st roller? scanning started Control for pre-feeding Pre-feeding control from the 1st roller completed from the 1st roller started Control for pre-feeding from registration roller completed e-STUDIO550/650/810 RADF 16 - 46 JUNE 2002 © TOSHIBA TEC...
Page 284 Small original? Next original detection started Feed motor stopped Midpoint between registration roller and the 1st roller passed? Trailing edge control Next original detection started for pre-feeding completed Registration sensor OFF? JUNE 2002 © TOSHIBA TEC 16 - 47 e-STUDIO550/650/810 RADF...
Page 285 Lifting tray up Specified time passed? Next original? Lifting tray up completed? Lifting tray down Next original separation started Lifting tray down completed? Control for next original detection completed e-STUDIO550/650/810 RADF 16 - 48 JUNE 2002 © TOSHIBA TEC...
Page 286 3rd roller? ON completed? Large original exit motor reverse rotation Large original exit motor stopped Read motor started The 3rd roller reached? Scanning position reached? Scanning start signal set JUNE 2002 © TOSHIBA TEC 16 - 49 e-STUDIO550/650/810 RADF...
Page 287 Large original exit motor stopped? Large original exit motor started The 4th roller reached? Large original exit sensor ON? Large original exit roller reached? Leading edge control during scanning completed e-STUDIO550/650/810 RADF 16 - 50 JUNE 2002 © TOSHIBA TEC...
Page 288 Read motor passed the 1st roller? accelerated until max. speed Large original exit motor Read sensor OFF? accelerated until max. speed Scanning position passed? Disengagement solenoid OFF Scanning start signal reset JUNE 2002 © TOSHIBA TEC 16 - 51 e-STUDIO550/650/810 RADF...
Page 289 The 4th roller passed? margin passed? Trailing edge control The 4th roller pass during transporting started margin passed? Trailing edge control for large original discharging started Trailing edge control during scanning completed e-STUDIO550/650/810 RADF 16 - 52 JUNE 2002 © TOSHIBA TEC...
Page 290 The 1st roller reached? motor stopped Large original exit solenoid OFF Pre-feeding control Large original exit from the 1st roller started motor stopped? Trailing edge control for large original discharging completed JUNE 2002 © TOSHIBA TEC 16 - 53 e-STUDIO550/650/810 RADF...
Page 291 Back side? Small original exit motor reversal sensor ON? Small original exit solenoid ON Leading edge control during transporting completed Small original exit motor reverse rotation Intermediate transport sensor ON? e-STUDIO550/650/810 RADF 16 - 54 JUNE 2002 © TOSHIBA TEC...
Page 292 Trailing edge control Trailing edge control for small original Specified pulse passed? for small original discharging started discharging started Small original exit motor decelerated Trailing edge control during transporting completed JUNE 2002 © TOSHIBA TEC 16 - 55 e-STUDIO550/650/810 RADF...
Page 293 Small original exit motor decelerated Small original exit sensor OFF? Small original exit roller passed? Small original exit motor stopped Trailing edge control for small original discharging completed e-STUDIO550/650/810 RADF 16 - 56 JUNE 2002 © TOSHIBA TEC...
Page 294: Timing Chart
16. 10. Timing Chart (a) Two sheets of A3 single-sided original JUNE 2002 © TOSHIBA TEC 16 - 57 e-STUDIO550/650/810 RADF...
Page 299 PTr output voltage to a certain level, and the LED current is adjusted by a voltage-current conversion circuit consisting of IC11, R65, Q6, etc. Each machine; has a different D-A output voltage value, which is stored in the volatile memory. e-STUDIO550/650/810 RADF 16 - 62 JUNE 2002 © TOSHIBA TEC...
Page 300 PTH2 and D1 captures the charge stored in C107 right after either the RADF open/ close switch or the cover open/close switch is opened, and also controls incoming current for instantaneous opening/closing of the cover. JUNE 2002 © TOSHIBA TEC 16 - 63 e-STUDIO550/650/810 RADF...
Page 301 The PWM signal is input into FMOT_CU and separated and smoothed at R89, R87 and C87, and it is input into IC15-12pin (Vref) to set the motor current value. The motor current value can be changed by altering duties of the PWM signal. e-STUDIO550/650/810 RADF 16 - 64 JUNE 2002 © TOSHIBA TEC...
Page 302 100% when the flappers start to be closed. After finishing closing, the duty value is decreased down to 50% and the flappers are kept closed while the temperature rise of the solenoids is being lowered. JUNE 2002 © TOSHIBA TEC 16 - 65 e-STUDIO550/650/810 RADF...
Page 303 IC3-2pin (SK) is a serial clock terminal, and the serial data are sent in synchronization with the clock input which is input to this terminal. IC3-3pin (DI) is a input terminal for serial data and IC3-4pin (DO) is an output terminal for serial data. e-STUDIO550/650/810 RADF 16 - 66 JUNE 2002 © TOSHIBA TEC...
Page 304 Each channel signal is an analog output signal of the reflective sensor and used to adjust the sensor automatically. C B A Corresponding Channel L L L L L H L H L L H H JUNE 2002 © TOSHIBA TEC 16 - 67 e-STUDIO550/650/810 RADF...
Page 305 This is an input circuit to communicate with the copier. “1” substitutes 5V and “0” substitetes 0V. The same logic is used in both the connector and CPU input port. e-STUDIO550/650/810 RADF 16 - 68 JUNE 2002 © TOSHIBA TEC...
Page 306 This is an input circuit to communicate with the copier. “1” substitutes 5V and “0” substitetes 0V. The same logic is used in both the connector and CPU output port. JUNE 2002 © TOSHIBA TEC 16 - 69 e-STUDIO550/650/810 RADF...
Page 307 Original width sensor 2 Original width sensor 3 Registration sensor Empty sensor Upper limit sensor Lower limit sensor Intermediate transport sensor Small original exit sensor Cover open/close sensor Tray sensor Tray width sensor e-STUDIO550/650/810 RADF 16 - 70 JUNE 2002 © TOSHIBA TEC...
Page 308 Small original reverse sensor Read sensor Large original exit sensor Original length sensor These are the input circuits from each photosensor. JUNE 2002 © TOSHIBA TEC 16 - 71 e-STUDIO550/650/810 RADF...
Page 309 No original Original existing LNGS (Original length sensor) No original Original existing Sensor Connector level more than 4V Connector level less than 1V TRVR (Tray width sensor) Guide muximum Guide minimum e-STUDIO550/650/810 RADF 16 - 72 JUNE 2002 © TOSHIBA TEC...
Page 310 ADF front cover. (B-2) ADF rear cover ADF rear cover (1) Open the jam access cover, remove 4 screws and take off the ADF rear cover. JUNE 2002 © TOSHIBA TEC 16 - 73 e-STUDIO550/650/810 RADF...
Page 311 (2) Remove 2 screws and take off the upper guide cover. (3) Remove the clips at the pickup unit, displace Clip the bushings and take off the pickup unit. Bushing e-STUDIO550/650/810 RADF 16 - 74 JUNE 2002 © TOSHIBA TEC...
Page 312 (4) Remove 2 screws and take off the separation unit. Separation unit (5) Remove the clip at the rear side, displace the bushing and take off the separation roller from the holder. Separation roller Clip, Bushing JUNE 2002 © TOSHIBA TEC 16 - 75 e-STUDIO550/650/810 RADF...
Page 313 Then tighten up the screws while stretching the timing belt. Note: Make sure that the timing belt is not moved to the edges. e-STUDIO550/650/810 RADF 16 - 76 JUNE 2002 © TOSHIBA TEC...
Page 314 (7) Hook the tension spring on the brackets. (8) Loosen the screws temporarily, and tighten them up while stretching the timing belt. Note: Make sure that the timing belt is not moved to the edges. JUNE 2002 © TOSHIBA TEC 16 - 77 e-STUDIO550/650/810 RADF...
Page 315 2 screws. (6) Loosen the screws temporarily, and tighten them up while stretching the timing belt. Note: Make sure that the timing belt is not moved to the edges. e-STUDIO550/650/810 RADF 16 - 78 JUNE 2002 © TOSHIBA TEC...
Page 316 (4) Remove 1 screw fixing the disengagement solenoid bracket, disconnect 1 connector and take off the disengagement solenoid with the bracket. (5) Remove 2 screws and release the disengage- ment solenoid from the bracket. JUNE 2002 © TOSHIBA TEC 16 - 79 e-STUDIO550/650/810 RADF...
Page 317 (4) Remove 4 screws and take off the lower guide. Lower guide (5) Disconnect 1 connector and take off the lifting tray lower limit sensor. Lifting tray lower limit sensor e-STUDIO550/650/810 RADF 16 - 80 JUNE 2002 © TOSHIBA TEC...
Page 318 Back cover (1) Open the tray, remove 3 screws and take off the back cover. (2) Disconnect 1 connector, release the latches and take off the tray sensor. Tray sensor JUNE 2002 © TOSHIBA TEC 16 - 81 e-STUDIO550/650/810 RADF...
Page 319 (3) Remove 2 screws and take off the scanning end guide. (4) Remove 4 screws and take off the small original transport guide. Small original Scanning transport guide end guide e-STUDIO550/650/810 RADF 16 - 82 JUNE 2002 © TOSHIBA TEC...
Page 320 Scanning guide (4) Remove 2 screws and take off the large original exit guide. Large original exit guide JUNE 2002 © TOSHIBA TEC 16 - 83 e-STUDIO550/650/810 RADF...
Page 321 (2) Open the jam access cover, remove 5 screws and take off the upper transport guide. (3) Release each latch, disconnect each Registration sensor connector, and take off the registration sensor and original width sensors. Original width sensor e-STUDIO550/650/810 RADF 16 - 84 JUNE 2002 © TOSHIBA TEC...
Page 322 (2) Move the platen guide toward the direction of the white arrow until the right side edge of the guide can be seen. (3) Remove the platen guide toward the direction of the white arrow. JUNE 2002 © TOSHIBA TEC 16 - 85 e-STUDIO550/650/810 RADF...
Page 323 [I] Mylar and mirror seal (I-1) Mirror seal for original length sensor Ref. 0 ~ 0.5 mm Upper guide Ref. 0 ~ 0.5 mm Mylar e-STUDIO550/650/810 RADF 16 - 86 JUNE 2002 © TOSHIBA TEC...
Page 324 Platen outside guide Attatch the mylar passing through the guide window to prevent twisting and too strong contact on the edge of the guide window. Mylar JUNE 2002 © TOSHIBA TEC 16 - 87 e-STUDIO550/650/810 RADF...
Page 326 0 ~ 0.5 mm Attatch the mirror seal with fitting the edge of it to the rib. Do not interfere the rib. Ref. 0 ~ 0.5 mm Under transport guide for small original JUNE 2002 © TOSHIBA TEC 16 - 89 e-STUDIO550/650/810 RADF...
Page 327 (I-5) Mirror seal for read sensor Reference hole: Attatch the mirror seal with locating its edge to the reference hole position. Mirror seal Platen guide Mirror seal Reference hole Ref. 1 ~ 1.5 mm e-STUDIO550/650/810 RADF 16 - 90 JUNE 2002 © TOSHIBA TEC...
Page 328 Dispositioning from the edge of the guide is not allowed. 0 ~ 1.0 mm Ref. Reverse guide Mirror seal Attatch the mirror seal between ribs. Do not interfere the rib. JUNE 2002 © TOSHIBA TEC 16 - 91 e-STUDIO550/650/810 RADF...
Page 329: Power Supply Unit
17. POWER SUPPLY UNIT 17. 1. Construction 17. 2. Operation of DC Output Circuits 17. 3. Output Channel 17. 4. Fuse 17. 5. Configuration of Power Supply Unit 17. 6. Power Supply Sequence...
Page 330: Operation Of Dc Output Circuits
If the protection circuit has been activated and the fuse is not blown out, remove the cause of the short- circuit and turn ON the power again to clear the circuit. JUNE 2002 © TOSHIBA TEC 17 - 1 e-STUDIO550/650/810 POWER SUPPLY UNIT...
Page 331: Output Channel
: J405 13pin Output to HDD 12VB : J407 6pin Output to PLG board 12VC : J408 11pin Output to SLG board 12VD : J406 8pin Output to LGC board e-STUDIO550/650/810 POWER SUPPLY UNIT 17 - 2 JUNE 2002 © TOSHIBA TEC...
Page 332 Output to Fnisher (3) 36V 36VA : J402 7pin Output to LGC board 36VB : J402 8pin Output to LGC board 36VC : J404 1pin, 2pin Output to SLG board JUNE 2002 © TOSHIBA TEC 17 - 3 e-STUDIO550/650/810 POWER SUPPLY UNIT...
Page 333 SLG board J409 for Finisier (1pin, 2pin) Working with the door switch J402 for LGC board J403 for PLG board J404 for SLG board J409 for Finisher (3pin~6pin) e-STUDIO550/650/810 POWER SUPPLY UNIT 17 - 4 JUNE 2002 © TOSHIBA TEC...
Page 334: Charger Wire Cleaner
Reversed paper transport section driving clutch Intermediate transport clutch Bypass pickup solenoid Tandem LCF pickup solenoid End fence solenoid Duct out fan motor Exit fan motor Reverse section fan motor 1/2 JUNE 2002 © TOSHIBA TEC 17 - 5 e-STUDIO550/650/810 POWER SUPPLY UNIT...
Page 335 Scanner motor F8: 4A (Semi time-lag) (Scanner) Scanner motor driver circuit (SLG board) 24VH Finisher F9: 8A (Semi time-lag) 24VF RADF F10: 5A (Semi time-lag) 24VG Monitering system Totalizer e-STUDIO550/650/810 POWER SUPPLY UNIT 17 - 6 JUNE 2002 © TOSHIBA TEC...
Page 336: Configuration Of Power Supply Unit
24VE(SLG) 5.1VA(PLG) 36VC(SLG) 24VH(FIN) Switching power supply 3.3VC(SYS) 5.1VB(SYS) 12VA(SYS) Frequency 5.1VC(SYS) reactor 5.1VD(LGC) 12VD(LGC) 24VG(LGC) Noise 24VF(RADF) filter Reg. 3.3VB(SLG) 5.1VE(SLG) 12VC(SLG) 5.1VF(PLG) 5.1VG(PLG) 3.3VA(PLG) 12VB(PLG) 5.1VH(FIN) JUNE 2002 © TOSHIBA TEC 17 - 7 e-STUDIO550/650/810 POWER SUPPLY UNIT...
Page 337: Power Supply Sequence
21.6V or more +24V(MAIN) PWR-DN Within 200ms 4.95V or more 4.95V or more +5.1V(DOOR) 21.6V or more 21.6V or more 0~200ms +24V(DOOR) 34.2V or more 34.2V or more +36V(DOOR) e-STUDIO550/650/810 POWER SUPPLY UNIT 17 - 8 JUNE 2002 © TOSHIBA TEC...
Page 338 18. PC BOARDS...
Page 344 (6) PWA-F-LDR-340 (7) PWA-F-SNS-340 (8) PWA-F-MOT-340 e-STUDIO550/650/810 PC BOARDS 18 - 6 JUNE 2002 © TOSHIBA TEC...
Page 345 (9) PWA-F-MOT2-340 (10) PBA-CONTROL (ADF CONTROL PC BOARD) JUNE 2002 © TOSHIBA TEC 18 - 7 e-STUDIO550/650/810 PC BOARDS...
Page 346 R02032111900-TTEC 1-1, KANDA NISHIKI-CHO, CHIYODA-KU, TOKYO, 101-8442, JAPAN...

This manual is also suitable for:

E-studio 810 E-studio 650 E-studio 550 E-studio810 E-studio650 Dp-5510 ... Show all

Toshiba e-studio550 Service Manual

Table of Contents

8. Laser Optical Unit

13. Transfer/Transport Unit

Quick Links

Chapters

Related Manuals for Toshiba e-studio550

Summary of Contents for Toshiba e-studio550

This manual is also suitable for:

Table of Contents