Ricoh G-P3 - Page 19

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8. Remove the securing pin, as shown, from the transfer unit.

9. Turn the green lever of the transfer unit counterclockwise to unlock the unit.

10. Remove the protective sheet.

1. Installation Procedure

Main Page

Safety Notices2
- Important Safety Notices2
- Laser Safety3
Symbols, Abbreviations, and Trademarks4
- Symbols and Abbreviations4
- Trademarks4
- Table of Contents5
1 Installation Procedure12
Installation Requirements12
- Environment12
- Machine Level13
- Machine Space Requirements13
- Power Requirements13
Optional Unit Combinations15
- Machine Options15
- Controller Options15
Printer Installation16
- Installation Procedure16
- Loading Paper25
- Meter Click Charge29
- Moving the Machine31
- Transporting the Machine31
Options Installation32
- Paper Feed Unit32
- Tray Heater32
Controller Options34
- Overview34
  - SD Card Appli Move35
2 Preventive Maintenance38
User Replaceable Items38
Service Maintenance39
- Recommended Cleaning Procedure39
3 Replacement and Adjustment40
Before You Start40
Special Tools and Lubricants41
- Tools41
Electrical Components42
- Electrical Board Unit42
- IOB (Input/Output Board)45
- Controller Board45
- Installing the New NVRAM47
- PSU (Power Supply Unit) Board48
- High Voltage Power Supply Board 148
- EGB (Engine Board) and High Voltage Power Supply Board 249
- LCD Panel50
- NVRAM Replacement Procedure50
Laser Optics53
- Caution Decal Locations53
- LD Unit53
- Ldb57
- Polygon Mirror Motor57
- Laser Synchronizing Detector Boards58
- LDU Shutter Motor Unit and Sensor59
Paper Feed61
- Paper Feed Roller61
- Paper Friction Pad62
- By-Pass Paper Size Sensor62
- By-Pass Feed Roller, Friction Pad63
- Registration Sensor65
- Paper Volume Sensor, End Sensor and Paper Width Sensor65
- Paper Size Sensor and Temperature/ Humidity Sensor68
- Paper Feed Motor68
- Paper Registration Clutch, Paper Feed Clutch and By-Pass Clutch69
Development70
- Color Development Motor, Color OPC Motor and Black Opc/Development Motor70
- Development Clutch71
- Transfer Belt Contact Motor72
- Toner Supply Motor73
- Transfer Roller Contact Motor73
- ID Sensors75
Drive76
- Drive Unit76
Duplex78
- Duplex Jam Sensor78
- Inverter Sensor79
- Duplex Motor and Inverter Motor79
Fusing81
- Fusing Unit81
- Thermistor and Thermostat81
- Fusing Lamp84
- Fusing Exit Sensor and Paper Exit Sensor85
- Fusing Registration Sensor85
- Fan Direction86
Adjustments87
- Gamma Adjustment87
4 Troubleshooting92
Process Control Results92
Service Call Conditions94
- Summary94
- SC Code Descriptions94
Troubleshooting Guide125
- Blank Print125
- All-Black Print125
- Missing CMY Color126
- Light Print126
- Repeated Spots or Lines on Prints126
- Dark Vertical Line on Prints127
- White Horizontal Lines or Bands128
- Missing Parts of Images128
- Dirty Background128
- Partial CMY Color Dots129
- Dark Irregular Streaks on Prints129
- CMY Color Irregular Streaks129
- Ghosting129
- Unfused or Partially Fused Prints129
- Image Skew130
- Background Stain130
- No Printing on Paper Edge131
- Image Not Centered When It Should be131
Electrical Component Defects132
- Sensors132
Blown Fuse Conditions136
- Power Supply Unit136
- Iob136
Leds137
5 Service Tables138
Service Program Mode138
- Service Mode Operation138
- Exiting Service Mode139
- Remarks140
- Bit Switch Programming142
Service Mode Table143
- Controller Service Mode143
- Engine Service Mode148
- Input Check Table320
- Output Check Table324
Firmware Update327
- Type of Firmware327
- Before You Begin327
- Updating Firmware328
- NVRAM Data Upload/Download331
- Address Book Upload/Download333
- Handling Firmware Update Errors334
Controller Self-Diagnostics336
- Overview336
Using the Debug Log338
- Retrieving the Debug Log from the HDD341
DIP Switches343
- Overview344
- Paper Path345
- Drive Layout346
- Board Structure347
- Printing Process349
- Process Control351
- Toner Supply Control354
- Toner Near End/Toner End Detection356
- Developer Initialization357
- Paper Feed358
- Paper Feed Drive359
- Paper Tray360
- By-Pass Tray Feed and Size Detection363
- Duplex364
Laser Exposure368
- Optical Path369
- Laser Synchronizing Detector370
- LD Safety Switch371
- Automatic Line Position Adjustment372
Photoconductor Unit377
- Drive and Drive Gear Position Sensor378
- Drum Charge and Quenching380
- Drum Cleaning381
- Waste Toner Collection382
- Waste Toner Bottle Full Detection and Set Detection383
- PCU Detection (Development Unit Detection)384
Development386
- Drive387
- Developer Mixing388
- Toner Supply Mechanism389
Image Transfer390
- Transfer Unit Detection and New Unit Detection391
- Drive and Transfer Belt Roller Voltage392
- Transfer Roller Unit394
Fusing397
- Fusing Temperature Control398
- Overheat Protection400
- Drive401
- Controller402
7 Specifications404
- Supported Paper Sizes407
- Software Accessories408
- Machine Configuration409

Ricoh G-P3 - Page 19

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