Ricoh G148 Manuals

Manuals and User Guides for Ricoh G148. We have 1 Ricoh G148 manual available for free PDF download: Service Manual

Ricoh G148 Service Manual

Ricoh G148 Service Manual (537 pages)

Brand: Ricoh | Category: Printer | Size: 13 MB

Table of Contents

Conventions Used in this Manual

2
Safety Instructions

4
Safety Instructions for Toner and Ink

9
Safety Precautions for this Machine

12
- Laser Safety
  13
- Caution Labels
  13
- Lithium Batteries (Memory Back-Up)
  13
- Table of Contents
  14
Installation

24
Installation Requirements

24
- Operating Environment
  24
- Machine Level
  25
- Minimum Space Requirements
  25
- Dimensions
  26
- Peripheral/Option Summary Table
  26
- Power Requirements
  27
Main Machine (G148)

29
- Accessory Check
  29
- Installation Procedure
  29
Call Light Installation

44
- Accessory Check
  44
- Call Light Installation Procedure
  45
A3/DLT Feeder Kit (B475)

47
- Accessory Check
  47
- Installation Procedure
  47
Lct (B473)

51
8½" X 14" Paper Size Tray (B474)

59
- Accessory Check (B474)
  59
- Installation Procedure
  60
3000-Sheet Finisher SR842 (B706)

66
- Accessory Check
  66
- Installation
  67
Punch Unit (B531/A812)

73
- Accessory Check
  73
- Installation
  74
Output Jogger Unit (B513)

79
- Accessory Check
  79
- Installation
  79
2000-Sheet Finisher (B700)

81
- Accessory Check
  81
- Installation
  82
Punch Unit (B702)

90
- Accessory Check
  90
- Installation
  91
Output Jogger Unit (B703)

95
- Accessory Check
  95
- Installation
  95
Cover Interposer Tray (B704)

98
- Accessory Check
  98
- Installation
  99
Copy Tray (B756)

108
- Accessory Check
  108
- Installation
  109
MFP Options

111
- Overview
  111
- Common Procedures
  112
- Wireless LAN G813 (802.11B)
  114
- USB Host Interface Unit Type a (B819)
  115
- Ieee1284 B679
  116
- Gigabit Ethernet G874
  117
DOS Overwrite Security Unit (G874)

119
- Before You Begin
  119
- Seal Check and Removal
  119
- DOS Unit Installation
  120
Preventive Maintenance

122
PM Tables

122
- Main Machine
  122
- Optional Peripheral Devices
  126
Replacement and Adjustment

130
General Cautions

130
- Drum
  130
- Drum Unit
  130
- Transfer Belt Unit
  131
- Laser Unit
  131
- Charge Corona
  131
- Development
  132
- Cleaning
  132
- Fusing Unit
  132
- Paper Feed
  133
- Used Toner
  133
Special Tools and Lubricants

134
- Special Tools
  134
- Lubricants
  134
Operation Panel and External Covers

135
- Operation Panel
  135
- Front Door
  136
- Right Covers
  136
- Left Covers
  137
- Rear Covers
  138
- Top Cover
  139
Laser Unit

140
- Caution Decals
  140
- LD Unit and Polygon Motor
  141
- Laser Synchronization Detector Replacement
  143
- Laser Unit Alignment
  143
Drum Unit

146
- Development Unit Removal
  146
- Charge Corona Unit
  149
- Charge Corona Wire and Grid
  150
- Charge Corona Wire Cleaning Pads
  151
- OPC Drum Removal
  152
- Quenching Lamp
  154
- Drum Potential Sensor
  155
- Cleaning Filter
  156
- Cleaning Blade
  156
- Cleaning Brush
  157
- Pick-Off Pawls
  158
- ID Sensor
  159
- Drum Motor
  160
- Toner Collection Bottle
  161
- Toner Separation Unit
  161
- Ozone Filters
  162
- Internal Dust Filter
  162
Development Unit

164
- Developer Replacement
  164
- Development Filter
  166
- Entrance Seal and Side Seals
  167
- TD Sensor
  168
- Toner End Sensor
  168
- Toner Supply Motor
  169
- Development Motor
  171
Transfer Belt Unit

173
- Transfer Belt Unit Removal
  173
- Transfer Belt Removal
  174
- Transfer Roller Cleaning Blade
  176
- Discharge Plate
  177
- Transfer Power Pack
  178
Fusing Unit

179
- Fusing Unit Removal
  179
- Fusing Unit Thermistors and Thermostats
  180
- Web Cleaning Roller
  182
- Web Motor and Web End Sensor
  185
- Pressure Roller Cleaning Unit
  186
- Fusing Lamps, Hot Roller, and Pressure Roller
  187
- Pressure Roller
  191
- Stripper Pawls
  193
- Nip Band Width Adjustment
  194
- Fusing Unit Exit Sensor
  195
- Fusing/Exit Motor
  196
- Fusing Exit Sensor and Exit Unit Entrance Sensors
  197
Duplex Unit

198
- Duplex Unit Removal
  198
- Duplex Unit Side-To-Side Adjustment
  199
- Jogger Fence Adjustment
  199
- Duplex Motors
  200
- Duplex Sensors
  202
- Duplex Jogger Belt Adjustment
  205
Paper Feed

206
- Paper Tray Removal
  206
- Rear Fence Return Sensor Replacement
  208
- Rear Fence HP Sensor Replacement
  209
- Tandem Right Tray Paper Sensor Replacement
  210
- Bottom Plate Lift Wire Replacement
  211
- Tandem Tray Paper Size Change
  212
- Pick-Up, Feed, Separation Roller Replacement
  216
- Feed Unit
  217
- Separation Roller Pressure Adjustment
  219
- Relay Sensor
  220
- Registration Sensor
  221
Pcbs and HDD

222
- BCU Board (Base Engine Control Unit)
  222
- Controller Board
  222
- IPU Board
  224
- Motherboard
  225
- Development Power Pack
  229
- PSU Board
  230
- Hdd
  230
- Nvram
  231
Print Image Adjustment

234
Troubleshooting

238
Overview

238
- Important SP Codes
  238
- Program Download
  238
- Jam Detection
  244
- Timing Charts
  245
Service Mode

249
- Service Call Conditions
  249
- SC Code Descriptions
  249
- Jam Codes
  285
- Additional SC Codes Printed in SMC Report
  286
Other Problems

292
- Blown Fuse Conditions
  292
- Common Problems
  292
- Frequent Paper Jams
  293
Service Tables

296
Service Program Mode

296
- General Notes
  296
- Entering and Leaving the Service Program Mode
  296
- Printer Controller Service Mode
  297
- Printer Engine Service Mode
  298
- Leaving the SP Mode
  300
- SP Mode Print (SMC Print)
  300
- Memory Clear: SP5801
  301
- Test Pattern Printing
  303
- Updating the Firmware
  307
- Uploading/Downloading NVRAM Data
  313
Service Program Mode Tables

315
- Service Table Key
  315
- Service Tables
  315
Input/Output Check

407
- Printer Input Check: SP5803
  407
- Printer Output Check: SP5804
  415
- Finisher 1 Input Check: SP6121
  419
- Finisher 1 Output Check: SP6124
  421
- Finisher 2 Input Check: SP6122
  422
- Finisher 2 Output Check: SP6125
  423
DIP Switch Tables

425
- BCU (Base Engine Control Unit)
  425
- Controller Board
  425
Using the Debug Log

427
- Setting up "Save Debug Log
  427
- Retrieving the Debug Log from the HDD
  433
- More about Debug Log
  434
Details

436
Overview

436
- Paper Path (with Cover Interposer Tray)
  437
- Motor Overview
  438
Board Structure

439
- Block Diagram
  439
- Component Descriptions
  439
Print Process Overview

442
Laser Exposure

444

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