Ricoh TH-C1b Copier Manuals

Manuals and User Guides for Ricoh TH-C1b Copier. We have 1 Ricoh TH-C1b Copier manual available for free PDF download: Service Manual

Ricoh TH-C1b Service Manual

Ricoh TH-C1b Service Manual (433 pages)

B156/B220

Brand: Ricoh | Category: Copier | Size: 10 MB

Table of Contents

Table of Contents
3
Installation
13
- Installation Requirements
  13
  - Environment
    13
  - Machine Level
    13
  - Power Requirements
    14
  - Space Requirements
    14
- Copier (B156/B220)
  15
  - Power Sockets for Peripherals
    15
  - Installation Flow Chart
    16
  - Accessory Check
    17
  - Installation Procedure
    18
- Paper Tray Unit (B456)
  25
  - Accessory Check
    25
  - Installation Procedure
    25
- Lct (B457)
  29
  - Accessory Check
    29
  - Installation Procedure
    29
- Auto Reverse Document Feeder (B810)
  33
  - Accessory Check
    33
  - Installation Procedure
    33
- Interchange Unit (B481)
  36
  - Accessory Check
    36
  - Installation Procedure
    37
- Bin Tray Unit (B480)
  38
  - Accessory Check
    38
  - Installation Procedure
    39
- Shift Tray (B510)
  42
  - Accessory Check
    42
  - Installation Procedure
    42
- By-Pass Feed Unit (B490)
  45
  - Accessory Check
    45
  - Installation Procedure
    45
- Duplex Unit (B509)
  47
  - Accessory Check
    47
  - Installation Procedure
    48
- Bridge Unit (B482)
  50
  - Accessory Check
    50
  - Installation Procedure
    50
- 1000-Sheet Finisher (B408)
  54
  - Accessory Check
    54
  - Installation Procedure
    55
- 500-Sheet Finisher (B458)
  58
  - Accessory Check
    58
  - Installation Procedure
    59
- Platen Cover Installation
  61
- Printer Options
  62
  - Postscript 3 (B769)
    62
  - File Format Converter (B609)
    63
  - Ieee1394 Interface (B581)
    64
    
    UP Mode Settings for IEEE 1394
    65
    
    SP Mode Settings for IEEE 1394
    65
  - Ieee 1284 (B679)
    66
    
    Installation Procedure
    66
  - Ieee802.11B (G813)
    67
    
    UP Mode Settings for Wireless LAN
    69
    
    SP Mode Settings for IEEE 802.11B Wireless LAN
    70
  - Bluetooth (B736)
    71
  - Checking the Connections
    72
- Data Overwrite Security Unit (B735)
  73
  - Accessory Check
    73
  - Seal Check and Removal
    73
  - Installation Procedure
    74
- Key Counter Installation
  76
- Anti-Condensation Heater
  78
- Tray Heater
  80
- Tray Heater (Optional Paper Tray Unit)
  82
- Tray Heater (Optional Lct)
  84
Preventive Maintenance
86
- Main Unit
  86
  - Overview
    86
  - Waste Toner Bottles
    87
  - Pm Table
    88
- Optional Unit Pm Table
  91
Replacement and Adjustment
92
- Special Tools
  92
- Filters
  92
- Scanner Unit
  93
  - Exposure Glass
    93
  - Aps Sensors
    93
  - Lens Block Assembly
    94
  - Exposure Lamp Stabilizer
    96
  - Scanner Lamp
    96
  - Scanner I/O Board
    99
  - Scanner Motor
    99
  - Front Scanner Wire
    99
  - Rear Scanner Wire
    102
- Laser Unit
  104
  - Caution Decal Location
    104
  - Laser Unit
    105
    
    Adjusting for Image Skew
    107
    
    D-Phase Adjustment
    108
    
    Laser Beam Pitch Adjustment
    109
  - Polygonal Mirror Motor and Lsd
    110
- Development Unit
  111
- Photoconductor Unit (Pcu)
  112
  - Pcu Assembly
    112
  - Waste Toner Bottles
    115
  - Charge Corona Unit, Grid, Wire, and Cleaner
    116
  - Charge Corona Wire Cleaner Motor
    118
  - Opc Belt Cleaning Unit
    118
  - Image Transfer Belt Cleaning Unit
    118
- Paper Transfer Unit
  119
  - Vertical Transport Unit
    119
  - Transfer Roller
    119
- Fusing/Paper Exit
  120
  - Fusing Unit
    120
  - Oil Supply Unit
    120
  - Oil Supply Pad
    121
  - Cleaning Roller and Fusing Sponge Roller
    121
  - Oiling Roller and Oil Supply Roller
    122
  - Fusing Lamps
    123
    
    When Installing the Fusing Lamps
    123
  - Fusing Inner Unit
    124
  - Pressure Roller Thermofuse
    124
  - Hot Roller Strippers
    125
  - Fusing Belt Unit and Pressure Roller Unit
    125
  - Pressure Roller, Pressure Roller Gear, and Cleaning Roller
    126
  - Pressure Roller Thermistor
    127
  - Oil Absorbers
    128
  - Fusing Entrance and Transfer Belt Sensors
    129
  - Paper Exit/Overflow Sensors
    130
- Paper Feed and Transport
  132
  - Feed Roller and Friction Pad
    132
  - Registration Sensor
    133
  - Paper Feed Sensor 1
    136
  - Paper Near-End Sensors
    136
  - Paper Feed Sensor 2
    137
  - Paper End Sensor 1
    138
  - Paper End Sensor 2
    138
- Electrical Components
  139
  - Exhaust Fan and I/O Board
    139
  - Bicu Board and Controller Board
    140
  - Hdd
    141
  - High Voltage Supply Board
    142
  - Power Supply Unit
    143
- Drive Units
  144
  - Development Clutches
    144
    
    K Development Units
    144
    
    C, y and M Development Units
    144
  - Development Motors
    145
  - Main Motor
    145
  - Pcu Gear Box
    146
  - Fusing Unit Motor
    146
  - Paper Feed Clutch 1
    147
  - Paper Feed Motor
    147
  - Paper Feed Clutch 2
    148
  - Registration Clutch
    148
  - Oil Pump
    149
- Copy Adjustment
  150
  - Printing
    150
    
    Registration - Leading Edge/Side-To-Side
    150
    
    Blank Margin
    151
    
    Main Scan Magnification
    151
  - Scanning
    152
    
    Scanner Sub-Scan Magnification
    152
    
    Scanner Leading Edge and Side-To-Side Registration
    152
    
    Main Scan Dot Position Correction
    153
  - Ardf Image Adjustment
    154
    
    ARDF Side-To-Side and Leading Edge Registration
    154
    
    ARDF Skew Adjustment
    155
- Color Adjustment
  156
  - Auto Color Calibration (Acc)
    156
  - Printer Gamma Correction
    157
    
    Copy Mode
    157
    
    Printer Mode
    161
- Scanner White Level Adjustment
  163
  - White Level Check
    163
  - White Level Adjustment
    163
- Touch Screen Calibration
  166
- Checking the Breaker Switch
  167
  - Breaker
    167
Troubleshooting
168
- Service Call
  168
  - Service Call Conditions
    168
  - Sc Table
    169
- Self-Diagnostic Mode
  187
  - Overview
    187
  - Detailed Self-Diagnostics
    188
- Image Test Mode
  189
  - Overview
    189
  - Vpu Test
    189
    
    SP4-907-1: VPU Test Pattern: R
    189
    
    SP4-907-2: VPU Test Pattern: G
    189
    
    SP4-907-3: VPU Test Pattern: B
    189
  - Ipu Test
    189
  - Gavd Test
    189
- Electrical Component Defects
  190
  - Sensors
    190
  - Switches
    192
  - Blown Fuse Conditions
    192
- Check Points for Image Problems at Regular Intervals
  193
- Trapezoid Images
  194
- Parallelogram Images
  195
- Checking the Image with the Trimming Pattern
  196
- Correcting the Images
  197
  - Flowchart
    197
  - Action
    198
    
    Adjusting for Image Skew
    199
Service Tables
204
- Service Program Mode
  204
  - Service Program Mode Operation
    204
    
    Starting the SP Mode
    204
    
    Quitting the SP Mode
    204
    
    SP Mode Touch Screen
    205
    
    Copy Window for Test Printing
    205
    
    Working on SP Mode Menus
    206
    
    Service Mode Lock/Unlock
    207
  - Sp Mode Table
    208
    
    SP1-XXX: (Feed)
    208
    
    SP2-XXX: (Drum)
    212
    
    SP3-XXX: (Process)
    221
    
    SP4-XXX: (Scanner)
    225
    
    SP5-XXX: (Mode)
    233
    
    SP6-XXX: (Peripherals)
    258
- Service Program Mode
  258
  - SP7-XXX: (Data Log)
    261
  - SP8-XXX: Data Log2
    271
- Service Program Mode
  271
  - Test Pattern Printing (Sp5-955-1)
    305
  - Input Check
    306
    
    Main Machine Input Check (SP5-803)
    306
    
    ARDF Input Check (SP6-007)
    310
    
    Finisher Input Check (SP6-117)
    311
    
    Main Machine Output Check (SP5-804)
    312
    
    ARDF Output Check (SP6-008)
    315
    
    Finisher Output Check (SP6-118)
    315
  - Smc Data Lists (Sp5-990)
    316
  - Original Jam History Display
    316
    
    Total Count
    316
    
    Details on the most Recent Jams
    316
  - Copy Jam History Display
    317
    
    Total Count
    317
    
    Details on the most Recent Jams
    317
  - Memory All Clear (Sp5-801)
    318
    
    Using an SD Card
    318
    
    Without Using a Flash Memory Card
    319
- Printer Service Mode
  320
  - Service Mode Table
    320
    
    Service Table Key
    320
  - Sp Modes Related to the Printer Controller
    322
- Scanner Service Mode
  323
  - Scanner Program Mode Table
    323
    
    SP1-XXX (System and Others)
    323
    
    SP2-XXX (Scanning-Image Quality)
    323
  - Aps Output Display (Sp4-301)
    324
- Program Download
  325
  - Firmware
    325
  - Nvram Data Upload/Download
    327
    
    Uploading NVRAM Data (SP5-824)
    327
    
    Downloading NVRAM Data (SP5-825)
    328
- Software Reset
  329
- System Settings and Copy Setting Reset
  329
  - System Setting Reset
    329
  - Copier Setting Reset
    330
- User Tools
  331
  - How to Enter User Tools
    331
    
    UP Mode Initial Screen: User Tools/Counter Display
    331
    
    System Settings
    331
    
    Copier/Document Server Features
    331
    
    Printer, Facsimile, Scanner Settings
    331
    
    Inquiry
    331
    
    Counter
    332
- Dip Switches
  332
- Sd Card Application Move
  333
  - Overview
    333
  - Move Exec
    334
  - Undo Exec
    334
- Using the Debug Log
  335
Detailed Section Descriptions
342
- Overview
  342
  - Paper Path
    343
  - Drive Components
    344
    
    Layout
    344
    
    Drive Power Path
    345
  - Electrical Components
    346
    
    Scanner Unit
    346
    
    Image Transfer
    347
    
    Paper Path
    348
    
    Development Units
    349
    
    Boards
    350
- Board Structure
  351
  - Block Diagram
    351
  - Controller
    353
- Copy Process
  355
- Process Control
  357
  - Overview
    357
  - Process Control Steps
    358
    
    Supplementary Information on Process Control
    358
- Scanning
  360
  - Overview
    360
  - Scanner Drive
    361
    
    Book Mode
    361
    
    ARDF Mode
    361
  - Original Size Detection
    362
- Image Processing
  364
  - Overview
    364
  - Sbu Block Diagram
    365
    
    Signal Processing
    365
    
    A/D Conversion
    365
    
    White Level Correction
    365
    
    Others
    365
    
    Black Level Correction
    366
    
    VPU Test Mode
    366
  - Image Processing
    367
    
    Shading Correction
    367
    
    Picture Element (Dot Position) Correction
    367
    
    Scan Line Correction
    367
    
    Scanner Gamma Correction (RGB Gamma Correction)
    368
    
    Filtering
    368
    
    ADS (Auto Image Density Selection)
    368
    
    ACS (Auto Color Selection)
    369
    
    Main Scan Magnification
    370
    
    Printer Gamma Correction
    371
    
    Error Diffusion
    373
- Photoconductor Unit (Pcu)
  374
  - Overview
    374
  - Charge Corona Unit
    375
    
    Power Supply
    375
    
    Grid and Wire Cleaning
    375
    
    Quenching
    376
  - Opc Belt Drive
    377
  - Opc Belt Cleaning Unit
    377
    
    Bottle Detection
    377
    
    Waste Toner Collection
    378
    
    Drive
    378
  - Image Transfer Belt Unit
    379
    
    Drive
    379
    
    Belt Mark Detection
    379
    
    Transfer Roller
    380
  - Image Transfer Belt Cleaning Unit
    381
    
    Image Transfer Belt Cleaning
    381
    
    Waste Toner Collection
    381
    
    Set Switch and Full Sensor
    381
    
    Contact Mechanism
    382
    
    Power Supply
    383
    
    Drive
    383
- Laser Exposure
  384
  - Overview
    384
  - Polygon Mirror Motor Unit
    385
    
    Speed
    385
  - Synchronization Detector
    385
  - Ld Unit
    385
  - Ld Safety Switch
    386
    
    Front Door
    386
    
    Circuit
    386
    
    Operation Panel Display and Switch Mechanism
    387
- Development
  388
  - Overview
    388
  - Development Unit
    389
    
    Replacing Units
    389
    
    Distinguishing the Development Unit with the One for the B051 Series
    389
  - Toner Supply Mechanism
    390
    
    Drive
    390
    
    Rollers and Agitators
    391
    
    Shutter
    391
  - Toner End Detection
    393
    
    Toner End Recovery
    393
  - Development Unit Contact Mechanism
    395
    
    Mechanism
    395
    
    Reverse Rotation
    396
  - Power Source
    397
    
    Development, Toner Supply, and Doctor Rollers
    397
    
    Doctor Roller
    397
- Paper Feed
  398
  - Overview
    398
    
    Transport Speed
    399
    
    Friction Pad
    399
  - Drive Mechanism
    399
    
    Feed and Vertical Transport
    399
    
    Registration
    399
  - Paper Lift
    400
    
    Lift Mechanism
    400
    
    Paper End/Near-End Detection
    400
  - Paper Size Detection
    401
    
    Mechanism
    401
    
    Switch Pattern
    401
- Paper Transfer and Separation
  402
  - Overview
    402
    
    Jammed Paper Release
    402
    
    Image Transfer and Paper Separation
    402
  - Contact/Separation Mechanism
    403
    
    Timing
    403
    
    Mechanism
    403
  - Power Supply
    404
    
    Circuit
    404
    
    Paper Transfer Roller Bias
    404
    
    Discharge Plate
    404
    
    Temperature/Humidity Control
    404
    
    Roller Cleaning
    405
- Image Fusing and Paper Exit
  406
  - Overview
    406
  - Drive
    407
  - Fusing Unit Components
    408
    
    Fusing Belt
    408
    
    Heating Roller Lamp and Pressure Roller Lamp
    408
    
    Fusing Bias
    409
    
    Fusing Unit Scs
    409
    
    Oil Supply
    410
    
    Oil End Detection and Recovery
    412
  - Temperature Control
    413
  - Energy Saver Modes
    414
    
    Overview
    414
    
    Panel off Mode
    415
    
    Low Power Mode
    416
    
    Auto off Mode
    417
  - Paper Exit
    418
    
    Drive
    418
    
    Paper Jam Detection
    418
  - Paper Overflow Detection
    418
- Print Data Processing
  419
  - Rpcs Driver
    419
  - Pcl5C Driver
    419
  - Ps3 Driver
    420
    
    CMS (Color Management System)
    420
    
    Gray Correction
    420
    
    BG/UCR (Black Generation/Under Color Removal)
    420
    
    Gamma Correction
    420
    
    Toner Limitation
    421
    
    Dither Processing and ROP/RIP
    421
- File Format Converter (Mlb)
  422
- Data Overwrite Security Unit (B735)
  423
  - Auto Erase Memory
    423
    
    Types of Data Overwritten and Not Overwritten
    423
    
    Overwrite Timing
    423
Specifications
424
- General Specifications (Main Unit)
  424
  - System Components
    426
  - Optional Equipment
    429
    
    Bridge Unit
    429
    
    By-Pass Tray Unit
    430
    
    Duplex Unit
    430
    
    Interchange Unit
    430
    
    Lct
    431
    
    Paper Tray Unit
    431
    
    Shift Tray Unit
    431
    
    1-Bin Tray Unit
    432
    
    500-Sheet Finisher
    432
    
    1000-Sheet Finisher
    433
    
    Upper Tray
    433
    
    Lower Tray
    433

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