Toshiba e-STUDIO2303A Manuals

Manuals and User Guides for Toshiba e-STUDIO2303A. We have 1 Toshiba e-STUDIO2303A manual available for free PDF download: Service Manual

Toshiba e-STUDIO2303A Service Manual

Toshiba e-STUDIO2303A Service Manual (730 pages)

multifunctional digital systems

Brand: Toshiba | Category: All in One Printer | Size: 64.85 MB

Table of Contents

Service Manual
1
Table of Contents
15
1 Features

25
2 Specifications / Accessories / Options / Supplies

27
- Copy
  31
- Print
  34
- Accessories
  35
- Options
  36
- System List
  37
  - H/23H/25H>
    38
  - La/23Lm/28Lm>
    39
  - Ha/28Ha>
    40
- Supplies
  41
- Outline of the Machine
  43
3 Outline of the Machine

47
- Electric Parts Layout
  47
  - Power Supply
    49
  - Developer Unit
    51
    
    Drive Unit
    52
    
    Drawer Unit
    54
- Symbols and Functions of Various Components
  56
  - Electromagnetic Clutches
    57
  - Lamps and Heaters
    58
  - Others
    59
- Copy Process
  60
- Comparison with E-STUDIO195 Series
  61
- General Operation
  63
  - Description of Operation
    64
  - Detection of Abnormality
    67
- Control Panel
  70
  - Items Shown on the Display Panel
    74
    
    Scanner
    75
    
    Composition
    76
    
    Functions
    77
  - Description of Operation
    79
- Laser Optical Unit
  80
  - Laser Precautions
    81
- Drive System
  83
  - Composition
    84
- Paper Feeding System
  85
  - Composition
    86
  - Functions
    87
  - Operation
    88
- Drum Related Section
  93
  - Composition
    94
  - Functions
    95
  - Outline
    96
- Development System
  97
  - Composition
    98
  - Functions
    99
  - Setting
    101
- Fuser / Exit Unit
  103
  - Composition
    104
  - Functions
    105
  - Operation
    106
  - Heater Control Circuit
    107
  - Automatic Duplexing Unit
    112
  - Composition
    113
  - Drive of ADU
    114
    
    Functions
    115
    
    Description of Operations
    116
- Power Supply Unit
  118
  - Operation of DC Output Circuits
    119
  - Output Channel
    120
4 Disassembly and Replacement

121
- Inner Tray
  122
- Right Front Cover
  122
- Left Front Cover
  123
- Right Rear Cover
  127
- Right Lower Cover
  127
- Right Cover
  128
- Top Cover
  129
- Control Panel
  130
- Scanner
  135
- Laser Optical Unit
  148
- Main Motor (M3)
  150
- Paper Eject Unit
  151
- Lower Drive Unit
  152
- Bypass Unit
  153
- Bypass Feed Clutch (CLT3)
  154
- Duct Unit
  155
- Lower Bypass Feed Guide
  156
- Drawer Separation Pad
  162
- Registration Roller Clutch (CLT1)
  163
- Registration Roller (Metal)
  164
- Registration Roller (Rubber)
  165
- Registration Sensor (S2)
  166
- Paper Empty Sensor (S5)
  167
- Drum
  172
- Recovery Blade
  173
- Main Charger
  174
- Main Charger Cleaner
  175
- Separation Needle
  176
- Suction Fun (M5)
  177
- Developer Unit
  179
- Filling Developer Unit with Developer Material
  181
- Toner Cartridge Interface PC Board (CTIF)
  193
- Fuser/Exit Unit <20L/23L/25L/20H/23H/25H>
  194
- Fuser Unit
  197
- Fuser Unit Cover/Fuser Unit Guide
  198
- Center Heater Lamp (LAMP1)
  200
- Side Heater Lamp (LAMP2)
  201
- Base Unit
  202
- Separation Finger
  203
- Pressure Roller
  204
- Fuser Roller/Fuser Roller Bushing
  205
- Fuser Center Thermostat (THMO1) / Fuser Front Thermostat (THMO2)
  207
- Center Thermistor (THMS1) / Side Thermistor (THMS2 Edge Thermistor (THMS3)
  208
- Exit Sensor (S3)
  211
- Exit Roller
  212
- Fuser/Exit Unit <23LA/23LM/28LM/23HA/28HA>
  214
- Fuser Unit
  217
- Exit Sensor (S3)
  218
- Fuser Unit Cover/Fuser Unit Guide
  220
- Center Heater Lamp (LAMP1)
  223
- Side Heater Lamp (LAMP2)
  224
- Base Unit
  225
- Pressure Roller
  226
- Separation Finger
  227
- Fuser Roller/Fuser Roller Bushing
  228
- Fuser Center Thermostat (THMO1) / Fuser Front Thermostat (THMO2)
  229
- Center Thermistor (THMS1) / Side Thermistor (THMS2 Edge Thermistor (THMS3)
  231
- Exit Roller
  233
- Automatic Duplexing Unit (ADU): Option <20L/23L/25L/20H/23H/25H>
  236
- ADU Sensor (S8)
  237
- Paper Exit Motor (M6)
  238
- ADU Clutch (CLT4)
  239
- ADU Fan Duct Unit
  240
- ADU Upper Transport Roller
  241
- ADU Transport Roller
  242
- Automatic Duplexing Unit (ADU)
  243
  - ADU Sensor (S8)
    244
  - Paper Exit Motor (M6)
    245
  - ADU Clutch (CLT4)
    246
  - ADU Lower Transport Roller
    247
  - ADU Upper Transport Roller
    248
  - Installation and Replacement of Options <20L/23L/25L/20H/23H/25H>
    249
  - Paper Feed Unit (PFU)
    250
  - Reversing Auto Document Feeder (RADF)
    254
  - Paper Feed Unit (PFU)
    255
5 Self-Diagnosis Modes

257
14 Self-Diagnosis Code (03/04/05/08 Code)

261
- Input Check (Test Mode 03)
  261
- Output Check (Test Mode 03)
  262
- Test Print Mode (Test Mode 04)
  263
- Operation Procedure in Adjustment Mode (05)
  264
- Test Print Pattern in Adjustment Mode (05)
  266
- Operation Procedure in Setting Mode (08)
  267
- Assist Mode (3C)
  269
  - Operating Procedure of Assist Mode
    270
- List Print Mode (9S)
  271
  - List Printing
    272
- Flash Memory Clear Mode (6C)
  285
  - Functions
    286
- Flash Memory Backup/Restore Mode (59)
  287
  - Backup Procedure
    288
- PM Support Mode Related Code
  290
  - Restrictions for the PM Counter-Related Self-Diagnosis Codes
    293
6 Setting / Adjustment

295
- Adjustment of Auto-Toner Sensor
  296
- Image Dimensional Adjustment
  298
- Image Quality Adjustment (Copying Function)
  317
  - Density Adjustment
    318
  - Background Adjustment
    319
  - Gamma Balance Adjustment
    320
  - Adjustment of Image Density
    321
  - Background Offsetting Adjustment for RADF
    322
- Image Quality Adjustment (Printing Function)
  323
- Gamma Balance Adjustment <20H/23H/25H, 23HA/28HA>
  324
- Image Quality Adjustment (Scanning Function)
  325
  - Density Adjustment
    326
  - Sharpness Adjustment
    327
  - Background Adjustment
    328
  - Fine Adjustment of Black Density
    329
  - Background Processing Offset Adjustment
    330
- Adjustment of the Scanner Section
  331
- Adjustment of the Paper Feeding System
  332
- Adjustment of Developer Unit <23LA/23LM/28LM/23HA/28HA>
  333
- Adjustment of the RADF
  335
  - Adjustment of Skew
    336
  - Adjustment of the Leading Edge Position
    339
  - Adjustment of Horizontal Position
    341
  - Adjustment of Copy Ratio
    342
7 Preventive Maintenance (Pm)

343
- PM Support Mode (6S)
  344
- Transfer Unit
  346
- General Description
  350
  - Counters to be Cleared
    352
- Preventive Maintenance Checklist
  353
  - Scanner
    354
  - Feed Unit
    355
  - Bypass Feed Unit
    357
  - Main Charger
    358
  - Transfer / Separation Charger
    360
  - Drum/Cleaner Related Section
    361
  - Developer Unit / Toner Cartridge Related Section
    363
  - Fuser/Paper Exit Unit
    365
  - Automatic Duplexing Unit
    367
  - Radf
    368
- Maintenance Part List
  372
- Grease List
  373
- Precautions for Storing and Handling Supplies
  374
- Operational Items in Machine Refreshing
  378
8 Error Code and Troubleshooting

379
- If a Problem Continues Even after Performing All Troubleshooting
  380
- Collection of Debug Logs with a USB Device
  381
- Traceability Label
  383
- Error Code List
  385
  - Service Call
    388
  - Error in E-Mail / Scanning Function
    390
  - Error History
    391
- Diagnosis and Prescription for each Error Code
  393
  - Paper Exit Jam
    394
  - Paper Transport Jam
    395
  - Paper Misfeeding
    404
  - Cover Open Jam
    411
  - Other Jam
    416
  - RADF Jam
    420
  - Drive System Related Service Call
    422
  - Paper Feeding System Related Service Call
    423
  - Scanning System Related Service Call
    425
  - Process Related Service Call
    427
  - Laser Optical Unit Related Service Call
    428
  - Fuser Unit Related Service Call
    429
  - Circuit Related Service Call
    437
  - Communication Related Service Call
    439
  - Error in E-Mail / Scanning Function
    441
- Troubleshooting for the Image
  445
  - Background Fogging
    446
  - Moire/Lack of Sharpness
    447
  - Toner Offset
    448
  - Blurred Image
    449
  - Poor Fusing
    450
  - Blank Copy
    451
  - Solid Copy
    452
  - White Banding or White Void (in the Feeding Direction)
    453
  - White Banding (at Right Angle with the Feeding Direction)
    455
  - Skew (Inclined Image)
    456
  - Black Banding (in the Feeding Direction)
    457
  - Black Banding (at Right Angle with the Feeding Direction)
    458
  - White Spots
    459
  - Poor Image Transfer
    460
  - Uneven Image Density
    461
  - Faded Image (Low Density, Abnormal Gray Balance)
    462
  - Image Dislocation in Feeding Direction
    463
  - Jittering Image
    464
  - Poor Cleaning
    465
  - Uneven Light Distribution
    466
  - Blotched Image
    467
  - Black Streaks on Image Leading Edge During Scanning
    468
- Other Errors
  469
9 Replacement of Pc Boards

474
11 Firmware Updating

491
- Firmware Updating with USB Device
  492
- Firmware Updating with PC Update Tool
  498
  - Update Procedure
    499
  - When Firmware Updating Fails
    501
- Firmware Updating with BIOS Mode
  502
  - When Firmware Updating Fails
    505
- Confirmation of the Updated Data
  506
12 External Counters

507
- Pin Layout <23LA/23LM/28LM/23HA/28HA>
  508
- Details of the Signals
  509
- Notices
  510
13 Wire Harness Connection Diagrams

511
Appendix

715
- Maintenance Check List <23LA/23LM/28LM/23HA/28HA
  716
- Revision Record
  717

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