Toshiba e-STUDIO 163 User manual

SERVICEMANUAL
MULTIFUNCTIONAL DIGITAL SYSTEMS
e-STUDIO163/203
File No. SME050024B0
R05092196100-TTEC
Ver02_2006-10

© July 2006 TOSHIBA TEC e-STUDIO163/203 CONTENTS
CONTENTS
1. SPECIFICATIONS / ACCESSORIES / OPTIONS / SUPPLIES ...................................1-1
1.1 Specifications.......................................................................................................................1-1
1.2 Accessories .........................................................................................................................1-4
1.3 Options ................................................................................................................................1-5
1.4 Supplies...............................................................................................................................1-6
1.5 System List..........................................................................................................................1-7
2. OUTLINE OF THE MACHINE.......................................................................................2-1
2.1 Sectional View.....................................................................................................................2-1
2.2 Electric Parts Layout............................................................................................................2-4
2.3 Symbols and Functions of Various Components...............................................................2-11
2.4 General Description...........................................................................................................2-15
2.4.1 System block diagram............................................................................................2-15
2.4.2 Construction of boards ...........................................................................................2-16
2.5 Disassembly and Replacement of Covers.........................................................................2-18
2.6 Disassembly and Replacement of PC boards...................................................................2-23
2.7 Removal and Installation of Options..................................................................................2-28
3. COPY PROCESS..........................................................................................................3-1
3.1 General Description of Copying Process.............................................................................3-1
3.2 Details of Copying Process..................................................................................................3-2
3.3 Comparison with e-STUDIO230/280.................................................................................3-13
4. GENERAL OPERATION...............................................................................................4-1
4.1 Overview of Operation.........................................................................................................4-1
4.2 Description of Operation......................................................................................................4-2
4.2.1 Warming-up..............................................................................................................4-2
4.2.2 Ready state (ready for copying) ...............................................................................4-2
4.2.3 Drawer feed copying ................................................................................................4-3
4.2.4 Bypass feed copying ................................................................................................4-4
4.2.5 Interruption copying..................................................................................................4-4
4.3 Detection of Abnormality......................................................................................................4-5
4.3.1 Types of abnormality................................................................................................4-5
4.3.2 Description of abnormality........................................................................................4-6
4.4 Flow Chart ...........................................................................................................................4-9
4.4.1 Immediately after the power is turned ON................................................................4-9
4.4.2 Automatic paper feed copying................................................................................4-11
5. CONTROL PANEL........................................................................................................5-1
5.1 Control Panel and LED Display ..........................................................................................5-1
5.2 Items Displayed on Control Panel .......................................................................................5-2
5.3 Relation between Equipment State and Operation..............................................................5-4
5.4 Operation.............................................................................................................................5-5
5.4.1 Block diagram...........................................................................................................5-5
5.4.2 LED display circuit....................................................................................................5-5
5.5 Disassembly and Replacement...........................................................................................5-6
6. SCANNER.....................................................................................................................6-1
6.1 General Description.............................................................................................................6-1
6.2 Construction.........................................................................................................................6-2
6.3 Functions.............................................................................................................................6-3
6.4 Description of Operation......................................................................................................6-5
6.4.1 Scanning operation ..................................................................................................6-5
6.4.2 Scan motor drive circuit............................................................................................6-6

e-STUDIO163/203 CONTENTS © July 2006 TOSHIBA TEC
2
6.5 Contact Image Sensor Unit Control Circuit..........................................................................6-8
6.5.1 Exposure LED control circuit....................................................................................6-8
6.5.2 CCD control circuit ...................................................................................................6-9
6.6 Disassembly and Replacement.........................................................................................6-12
7. IMAGE PROCESSING..................................................................................................7-1
7.1 General Description.............................................................................................................7-1
7.2 Configuration .......................................................................................................................7-2
7.3 MAIN Board.........................................................................................................................7-3
7.3.1 Features ...................................................................................................................7-3
7.3.2 Functions of image processing circuit ......................................................................7-4
8. LASER OPTICAL UNIT ................................................................................................8-1
8.1 General Description.............................................................................................................8-1
8.2 Structure..............................................................................................................................8-2
8.3 Laser Diode Control Circuit..................................................................................................8-5
8.4 Polygonal Motor Control Circuit...........................................................................................8-6
8.5 Disassembly and Replacement...........................................................................................8-7
9. DRIVE UNIT ..................................................................................................................9-1
9.1 General Description.............................................................................................................9-1
9.2 Configuration .......................................................................................................................9-2
9.3 Functions ............................................................................................................................9-3
9.4 Main Motor Control Circuit...................................................................................................9-4
9.5 Disassembly and Replacement...........................................................................................9-6
10. PAPER FEEDING SYSTEM........................................................................................10-1
10.1 General Description...........................................................................................................10-1
10.2 Configuration .....................................................................................................................10-2
10.3 Functions...........................................................................................................................10-3
10.4 Operation...........................................................................................................................10-5
10.4.1 Drawer....................................................................................................................10-5
10.4.2 Bypass tray.............................................................................................................10-7
10.4.3 General operation...................................................................................................10-9
10.5 Disassembly and Replacement.......................................................................................10-10
11. DRUM RELATED SECTION.......................................................................................11-1
11.1 General Description...........................................................................................................11-1
11.2 Configuration .....................................................................................................................11-2
11.3 Functions...........................................................................................................................11-3
11.4 High-Voltage Output Control Circuit ..................................................................................11-5
11.4.1 General description ................................................................................................11-5
11.4.2 Description of Operation.........................................................................................11-6
11.5 Drum Temperature Detection Circuit.................................................................................11-7
11.5.1 General description ................................................................................................11-7
11.5.2 Circuit configuration................................................................................................11-7
11.6 Temperature/Humidity Detection Circuit............................................................................11-8
11.6.1 General Description................................................................................................11-8
11.6.2 Circuit configuration................................................................................................11-8
11.7 Disassembly and Replacement.........................................................................................11-9
12. DEVELOPMENT SYSTEM..........................................................................................12-1
12.1 General Description...........................................................................................................12-1
12.2 Construction.......................................................................................................................12-2
12.3 Functions...........................................................................................................................12-3
12.3.1 Function of each unit..............................................................................................12-3
12.3.2 Functions of the toner cartridge PC board (CTRG)................................................12-4
12.3.3 Recovered toner supply mechanism......................................................................12-6

© July 2006 TOSHIBA TEC e-STUDIO163/203 CONTENTS
3
12.4 Toner Motor Control Circuit ...............................................................................................12-7
12.5 Auto-Toner Circuit..............................................................................................................12-8
12.5.1 General description ................................................................................................12-8
12.5.2 Function of auto-toner sensor ................................................................................12-9
12.6 Disassembly and Replacement.......................................................................................12-11
13. FUSER / EXIT UNIT....................................................................................................13-1
13.1 General Description...........................................................................................................13-1
13.2 Configurations....................................................................................................................13-2
13.3 Functions...........................................................................................................................13-3
13.4 Operation...........................................................................................................................13-4
13.5 Fuser Unit Control Circuit ..................................................................................................13-5
13.5.1 Configuration..........................................................................................................13-5
13.5.2 Temperature detection section...............................................................................13-6
13.6 Disassembly and Replacement.......................................................................................13-11
14. POWER SUPPLY UNIT ..............................................................................................14-1
14.1 Construction.......................................................................................................................14-1
14.2 Operation of DC Output Circuit..........................................................................................14-2
14.3 Output Channel .................................................................................................................14-3
14.4 Fuse...................................................................................................................................14-4
14.5 Configuration of Power Supply Unit...................................................................................14-5
14.6 Power Supply Sequence ...................................................................................................14-6
14.7 AC Wire Harness...............................................................................................................14-7
15. PC BOARDS ...............................................................................................................15-1

SERVICEHANDBOOK
MULTIFUNCTIONAL DIGITAL SYSTEMS
e-STUDIO163/166/203/206
File No. SHE050005J0
R05092196301-TTEC
Ver10_2007-11

© 2005 - 2007 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO163/166/203/206
CONTENTS
1
CONTENTS
1. SPECIFICATIONS / ACCESSORIES / OPTIONS / SUPPLIES ...................................1-1
1.1 Specifications.......................................................................................................................1-1
1.2 Accessories .........................................................................................................................1-4
1.2.1 e-STUDIO163/203....................................................................................................1-4
1.2.2 e-STUDIO166/206....................................................................................................1-5
1.3 Options ................................................................................................................................1-6
1.4 Supplies...............................................................................................................................1-7
1.5 System List..........................................................................................................................1-8
2. ERROR CODE AND SELF-DIAGNOSTIC MODE........................................................2-1
2.1 Error Code List.....................................................................................................................2-1
2.1.1 Jam...........................................................................................................................2-1
2.1.2 Service call...............................................................................................................2-2
2.2 Self-diagnosis Modes ..........................................................................................................2-3
2.2.1 Input check (Test mode 03)......................................................................................2-5
2.2.2 Output check (Test mode 04)...................................................................................2-8
2.2.3 Test print mode (Test mode 07).............................................................................2-10
2.2.4 List Print Mode (9S)................................................................................................2-11
2.2.5 Access code mode (8S) .........................................................................................2-13
2.2.6 Function Setting Mode (1*).....................................................................................2-15
2.2.7 Adjustment mode (05)............................................................................................2-16
2.2.8 Setting mode (08)...................................................................................................2-32
2.2.9 Test Mode (13).......................................................................................................2-60
2.2.10 Country/Region code (02) ......................................................................................2-62
3. ADJUSTMENT ..............................................................................................................3-1
3.1 Adjustment of Auto-Toner Sensor .......................................................................................3-1
3.2 Image Dimensional Adjustment...........................................................................................3-3
3.2.1 General description ..................................................................................................3-3
3.2.2 Paper alignment at the registration roller .................................................................3-5
3.2.3 Printer related adjustment ........................................................................................3-7
3.2.4 Scanner related adjustment ...................................................................................3-11
3.3 Image Quality Adjustment (Copying Function)..................................................................3-19
3.3.1 Density adjustment.................................................................................................3-19
3.3.2 Gamma slope adjustment ......................................................................................3-20
3.3.3 Sharpness adjustment............................................................................................3-21
3.3.4 Setting range correction .........................................................................................3-22
3.3.5 Setting range correction (Adjustment of background peak) ...................................3-22
3.3.6 Setting range correction (Adjustment of text peak) ................................................3-23
3.3.7 Adjustment of smudged/faint text...........................................................................3-23
3.3.8 Adjustment of image density ..................................................................................3-24
3.4 Image Quality Adjustment (Printing Function)...................................................................3-25
3.4.1 Adjustment of smudged/faint text...........................................................................3-25
3.4.2 Adjustment of image density ..................................................................................3-26
3.5 Image Quality Adjustment (Scanning Function) ................................................................3-27
3.5.1 Density adjustment.................................................................................................3-27
3.5.2 Sharpness adjustment............................................................................................3-28
3.5.3 Setting range correction .........................................................................................3-29
3.5.4 Setting range correction (Adjustment of background peak) ...................................3-29
3.5.5 Setting range correction (Adjustment of text peak) ................................................3-30
3.6 Adjustment of High-Voltage Transformer ..........................................................................3-31
3.6.1 Adjustment .............................................................................................................3-31
3.6.2 Precautions ............................................................................................................3-37

e-STUDIO163/166/203/206 © 2005 - 2007 TOSHIBA TEC CORPORATION All rights reserved
CONTENTS 2
3.7 Adjustment of the Scanner Section ...................................................................................3-39
3.7.1 CIS unit...................................................................................................................3-39
3.7.2 CIS unit drive belt-1................................................................................................3-39
3.7.3 Scan motor (CIS unit drive belt-2)..........................................................................3-40
3.8 Adjustment of the Paper Feeding System.........................................................................3-41
3.8.1 Sheet sideways deviation caused by paper feeding ..............................................3-41
3.9 Adjustment of Developer Unit............................................................................................3-42
3.9.1 Doctor-to-sleeve gap..............................................................................................3-42
3.10 Adjustment of the ADF (MR-2017) ....................................................................................3-45
3.10.1 Adjustment of ADF Position ...................................................................................3-45
3.10.2 Adjustment of ADF Height......................................................................................3-50
3.10.3 Adjustment of Skew................................................................................................3-52
3.10.4 Adjustment of the Leading Edge Position ..............................................................3-54
3.10.5 Adjustment of Horizontal Position ..........................................................................3-55
3.10.6 Adjustment of Copy Ratio.......................................................................................3-56
3.10.7 Adjustment of ADF Opening/Closing Sensor .........................................................3-57
4. PREVENTIVE MAINTENANCE (PM)............................................................................4-1
4.1 General Descriptions for PM Procedure..............................................................................4-1
4.2 Operational Items in Overhauling........................................................................................4-2
4.3 Preventive Maintenance Checklist.......................................................................................4-3
4.4 PM KIT...............................................................................................................................4-12
4.5 Jig List ...............................................................................................................................4-13
4.6 Grease List ........................................................................................................................4-14
4.7 Precautions for Storing and Handling Supplies.................................................................4-15
4.7.1 Precautions for storing TOSHIBA supplies ............................................................4-15
4.7.2 Checking and cleaning of photoconductive drum...................................................4-16
4.7.3 Checking and cleaning of drum cleaning blade......................................................4-17
4.7.4 Checking and cleaning of fuser roller and pressure roller......................................4-17
5. TROUBLESHOOTING ..................................................................................................5-1
5.1 Diagnosis and Prescription for Each Error Code.................................................................5-1
5.1.1 Paper transport jam..................................................................................................5-1
5.1.2 Paper misfeeding .....................................................................................................5-4
5.1.3 Cover open jam........................................................................................................5-7
5.1.4 Transport jam (ADF)...............................................................................................5-10
5.1.5 Drive system related service call............................................................................5-13
5.1.6 Scanning system related service call .....................................................................5-14
5.1.7 Fuser unit related service call.................................................................................5-15
5.1.8 ADF related service call .........................................................................................5-18
5.1.9 Laser optical unit related service call .....................................................................5-18
5.1.10 Service call for others.............................................................................................5-19
5.1.11 Optional communication related service call..........................................................5-20
5.2 Troubleshooting for the Image...........................................................................................5-21
5.3 Replacement of PC Boards...............................................................................................5-43
5.3.1 Replacing MAIN board ...........................................................................................5-43
5.3.2 Replacing SRAM board..........................................................................................5-43
6. FIRMWARE UPDATING ...............................................................................................6-1
6.1 Firmware Updating with Download Jig ................................................................................6-1
6.1.1 PWA-DWNLD-350-JIG.............................................................................................6-3
6.1.2 Writing the data to the download jig (PWA-DWNLD-350-JIG) .................................6-6
6.1.3 K-PWA-DLM-320......................................................................................................6-7
6.2 Firmware Updating with TOSHIBA Viewer (e-STUDIO163/203 only) .................................6-8
6.3 Firmware Updating with Software Update Tool.................................................................6-12
6.3.1 General Description................................................................................................6-12
6.3.2 System Requirements............................................................................................6-12
07/05

© 2005 - 2007 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO163/166/203/206
CONTENTS
6.3.3 Preparation and Precaution....................................................................................6-12
6.3.4 Update Procedure ..................................................................................................6-12
7. POWER SUPPLY UNIT ................................................................................................7-1
7.1 Output Channel ...................................................................................................................7-1
7.2 Fuse.....................................................................................................................................7-2
7.3 Configuration of Power Supply Unit.....................................................................................7-3
8. WIRE HARNESS CONNECTION..................................................................................8-1
8.1 AC Wire Harness.................................................................................................................8-1
8.2 DC Wire Harness.......................................................................................................Appendix
8.2.1 e-STUDIO163/203............................................................................................Appendix
8.2.2 e-STUDIO166/206............................................................................................Appendix
8.3 Electric Parts Layout.................................................................................................. Appendix

MULTIFUNCTIONAL DIGITAL SYSTEM
e-STUDIO163/203

CONTENTS
COVER-1-ASY............................................ 1
COVER-2-ASY............................................ 2
COVER-3-ASY............................................ 3
CONTROL-PANEL-ASY.............................. 4
BASE-FRAME-ASY..................................... 5
FRONT-FRAME-ASY.................................. 6
REAR-FRAME-ASY .................................... 7
STAY-ASY ................................................... 8
OPTICAL-FRAME-ASY............................... 9
OPTICAL-DRIVE-ASY .............................. 10
COVER-GUIDE-ASY................................. 11
MAIN-DRIVE-ASY..................................... 12
BYPASS-ASY............................................ 13
BYPASS-FEEDER-ASY ............................ 14
GUIDE-ALIGNING-ASY ............................ 15
ALIGNING-ASY......................................... 16
PLATEN-ASY ............................................ 17
MAIN-CHARGER-ASY.............................. 18
TRANSPORT-CHARGER-ASY................. 19
CLEANER-ASY......................................... 20
DEVELOPER-ASY .................................... 21
RECYCLE-ASY......................................... 22
FUSER-1-ASY........................................... 23
FUSER-2-ASY........................................... 24
DRAWER-ASY .......................................... 25
JIGS & GREASE..................................... 101
DOWNLOAD JIGS .................................. 102
SUPPLIES............................................... 103
REPLACE UNIT ...................................... 104
PM-KIT .................................................... 105

1
e-STUDIO163/203 DECEMBER 2005
8
7
102
102
102
102
102
102
101
102
105
102
104
104
104
104
19
102
104
104
104
104
104
102
17
16
14
15
20
13
10
11
12
1
2
3
6
5
4
9
18
A
A
COVER-1-ASY

PCBOARDREPAIRMANUAL
MULTIFUNCTIONAL DIGITAL SYSTEMS
e-STUDIO163/165/203/205
e-STUDIO166/167/206/207/237
File No. RME050003A0
R05092196500 TTEC

© June 2006 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO163/165/166/167/203/205/206/207/237
CONTENTS
CONTENTS
1. SYSTEM BLOCK DIAGRAM........................................................................................1-1
1.1 e-STUDIO163/166/203/206.................................................................................................1-1
1.2 e-STUDIO165/205...............................................................................................................1-2
1.3 e-STUDIO167/207/237........................................................................................................1-3
2. GENERAL DESCRIPTION OF MAIN IC.......................................................................2-1
2.1 ASIC (EC/N106) ..................................................................................................................2-1
2.1.1 Functions..................................................................................................................2-1
2.1.2 Pin assignment.........................................................................................................2-1
2.1.3 Signals......................................................................................................................2-2
3. ELECTRIC CIRCUIT DIAGRAMS.................................................................................3-1
3.1 Main circuit (MAIN board: e-STUDIO163/165/203/205)......................................................3-2
3.2 SRAM circuit (SRAM board: e-STUDIO163/165/203/205)................................................3-36
3.3 Laser drive circuit (LDR board)..........................................................................................3-37
3.4 H-sync signal detection circuit (SNS board)......................................................................3-39
3.5 Fuse circuit (FUS board)....................................................................................................3-40
3.6 Control panel circuit (LPNL board: e-STUDIO163/166/203/206).......................................3-41
3.7 Control panel circuit (HPNL board: e-STUDIO165/205)....................................................3-45
3.8 Paper feed control circuit (PFC board: GH-1050)..............................................................3-49
3.9 Facsimile circuit (FAX board: GD-1220)............................................................................3-53
3.10 Telephone line network control circuit (NCU board: GD-1220NA/TW)..............................3-58
3.11 Telephone line network control circuit (NCU board: GD-1220EU/AU) ..............................3-60
3.12 TELBOOK circuit (TELBOOK board: GJ-1040).................................................................3-62
3.13 External keyboard circuit (OTK board: GJ-1040)...............................................................3-63
3.14 Memory circuit (MEM board: GC-1240).............................................................................3-64
3.15 Main circuit (MAIN board: e-STUDIO166/206)..................................................................3-65
3.16 Main circuit (MAIN board: e-STUDIO167/207/237)...........................................................3-99
3.17 SRAM circuit (SRAM board: e-STUDIO166/167/206/207/237).......................................3-134
3.18 Control panel circuit (HPNL board: e-STUDIO167/207/237)...........................................3-135
3.19 Paper feed control circuit (PFC board: GH-1060)............................................................3-139

Toshiba-Tec e-Studio 163, e-Studio 203 service manual
Toshiba-Tec e-Studio 163, e-Studio 203 service manual
Toshiba-Tec e-Studio 163, e-Studio 203 service manual
Toshiba-Tec e-Studio 163, e-Studio 203 service manual
Toshiba-Tec e-Studio 163, e-Studio 203 service manual
Toshiba-Tec e-Studio 163, e-Studio 203 service manual
Toshiba-Tec e-Studio 163, e-Studio 203 service manual
Toshiba-Tec e-Studio 163, e-Studio 203 service manual
Toshiba-Tec e-Studio 163, e-Studio 203 service manual