Ricoh G081 Manuals

Manuals and User Guides for Ricoh G081. We have 1 Ricoh G081 manual available for free PDF download: Service Manual

Ricoh G081 Service Manual

Ricoh G081 Service Manual (272 pages)

Brand: Ricoh | Category: All in One Printer | Size: 19 MB

Table of Contents

Table of Contents
13
Important Safety Notices
21
Installation

25
Installation

27
Preventative Maintenance

53
Preventative Maintenance

55
- User Replaceable Items
  55
- Service Maintenance
  56
  - Pm Table
    56
  - Recommended Cleaning Procedure
    56
Replacement and Adjustment

57
- Special Tools and Lubricants
  59
  - Tools
    59
  - Lubrication
    59
- Fusing Unit
  60
- Transfer Belt Unit
  61
- Exterior Covers
  61
  - Front Door with Transfer Roller Unit
    61
  - Transfer Roller Assembly
    62
  - Right Cover
    62
  - Rear Cover
    63
  - Left Cover
    63
  - Top Cover and Lcd Panel
    64
- Ecb and Drive Units
  65
- Laser Scanning Unit
  76
  - Caution Decal Locations
    76
  - Laser Scanning Unit
    77
- Paper Feed
  77
  - Paper Exit
    77
  - Disassembly of Paper Exit Sub Assembly
    80
- Paper Feed Unit
  80
  - Paper Feed Unit Disassembly
    82
- Ih (Inductive Heater) Unit
  85
- Electrical Components
  86
- Transfer Belt Tension Unit
  92
  - Transfer Belt Tension Unit Removal
    92
  - Changer Solenoid and Cam Ratchet Solenoid
    93
- Pcu Holder
  95
- Fusing Fan Motor
  97
- Sensors
  97
- Standard Paper Cassette
  99
Troubleshooting

103
Troubleshooting

105
- Service Call Conditions
  105
  - Sc Code Descriptions
    106
- Controller Error
  110
- Troubleshooting Guide
  114
  - Blank Print
    114
  - All-Black Print
    114
  - Missing Cmy Color
    115
  - Light Print
    115
  - Repeated Spots or Lines on Prints
    116
  - Dark Vertical Line in Print
    116
  - White Horizontal Lines or Bands
    117
  - Missing Parts of Images
    117
  - Dirty Background
    117
  - Partial Cmy Color Dots
    117
  - Dark Irregular Streaks on Prints
    117
  - Cmy Color Irregular Streaks
    118
  - Ghosting
    118
  - Unfused or Partially Fused Prints
    118
  - Image Skew
    118
  - Background Stain
    119
  - No Printing on Paper Edge
    119
  - Image Not Centered When It Should be
    119
- Electrical Component Defects
  120
  - Sensors
    120
- Blown Fuse Conditions
  122
  - Power Supply Unit
    122
  - High Voltage Unit
    122
- Leds
  122
Service Tables

123
- Service Program Mode
  125
  - Service Mode Operation
    125
    
    Entering the Service Mode
    125
    
    Accessing the Required Program
    126
    
    Exiting Service Mode
    126
    
    Inputting a Value or Setting for a Service Program
    126
- Printer Controller Service Mode
  127
  - Service (Controller Service Modes)
    129
    
    Bit Switch Settings
    129
    
    Gamma Adjustment
    131
- Printer Engine Service Mode
  135
- Service Mode Table ("2. Engine")
  135
  - SP1-XXX (Feed)
    135
  - SP2-XXX (Drum)
    137
  - SP5-XXX (Mode)
    139
  - SP7-XXX (Data Log)
    145
  - Input Check Table
    149
  - Output Check Table
    151
- Firmware Update Procedure
  153
  - Type of Firmware
    153
  - Error Recovery
    153
    
    Controller System Firmware
    153
    
    Engine Firmware
    153
  - Controller/Engine Firmware Upgrade
    154
    
    Engine Firmware
    154
    
    Controller System Firmware
    155
- Power on Self-Test
  157
  - Controller Self-Diagnostic
    157
    
    Overview
    157
    
    Detailed Self-Diagnostics
    158
  - Engine Self-Diagnostic
    158
- User Program Mode
  159
- Dip Switches
  160
  - Controller Board
    160
Detailed Descriptions

161
Detailed Section Descriptions

163
- Overview
  163
  - Component Layout
    163
  - Paper Path
    164
- Drive Mechanism
  165
  - General Description
    165
  - Bk Motor Drive
    166
  - Cmy Motor Drive
    167
  - Board Structure
    168
    
    Overview
    168
    
    Descriptions
    169
- Print Process
  170
  - Overview
    170
  - Charge
    172
  - Laser Exposure
    173
    
    Laser Scanning
    173
    
    Polygon Motor and Laser Exposure
    174
  - Toner Supply
    175
    
    Toner Cartridge
    175
    
    Paddle Shaft Switching Mechanism
    176
    
    Toner Cartridge and Toner End Detection
    177
  - Development
    179
    
    PCU and OPC Drum
    179
  - Transfer Belt Unit Drive
    181
    
    Belt Tension Unit
    181
    
    Belt Home Position Sensor
    182
    
    Four Phases
    182
    
    Monochrome Printing and Color Printing
    183
  - Belt Transfer and Cleaning
    185
    
    Transfer from Drum to Belt
    185
    
    Transfer from Belt to Paper
    186
    
    Belt Cleaning
    187
    
    Mechanism
    188
    
    Waste Toner Bottle
    188
    
    Sensor
    189
  - Fusing
    190
    
    Fusing Process
    190
    
    Circuit Board
    191
    
    Fusing Belt
    191
    
    Pressure Roller
    191
    
    Fusing Temperature Control
    194
  - Paper Feed
    196
    
    Drive Motors
    197
    
    Paper Size Detection Switch Combination
    197
    
    Sensors
    197
    
    Feeding Envelopes
    198
    
    Paper Feed Speed
    198
    
    Registration Clutch
    198
  - Standard Tray Lock Mechanism
    199
  - Paper Exit and Paper Switchback
    200
    
    Normal Printing Mode (Not Duplex Printing Mode)
    200
    
    Duplex Printing Mode (Paper Switchback)
    201
  - Color Point Adjustment
    202
    
    Adjustment Types
    202
    
    Adjustment Timing
    203
- Controller
  204
  - Overview
    204
  - Board Layout
    206
  - Print Data Processing
    207
    
    Pcl5C Driver
    207
    
    RPCS Driver
    207
    
    BG/UCR (Black Generation/Under Color Removal)
    208
    
    CMS (Color Management System)
    208
    
    Gamma Correction
    208
    
    Gray Correction
    208
    
    PS3 Driver
    208
    
    Dither Processing and ROP/RIP
    209
    
    Toner Limitation
    209
- Controller Functions
  210
  - Sample Print
    210
  - Locked Print
    210
  - Paper Source Selection
    211
    
    Tray Lock
    211
    
    Tray Priority (Auto Tray Select)
    211
    
    Manual Tray Select
    212
  - Auto Continue
    212
    
    Auto Tray Select
    212
    
    ACS (Auto Color Sensing) Mode
    213
    
    Energy Saver Mode
    214
- Ieee1394 Interface
  215
  - Specifications
    215
    
    Hardware Specification
    215
  - Ieee1394 Scsi Print
    215
  - Block Diagram
    216
  - Pin Assignment
    216
  - Remarks
    217
  - Troubleshooting Notes
    217
  - Ip over 1394
    218
- Usb
  219
  - Specifications
    219
  - Usb 1.1/2.0
    219
  - Usb Connectors
    220
  - Pin Assignment
    220
  - Remarks
    221
    
    Related SP Mode
    221
- Ieee802.11B (Wireless Lan)
  222
  - Specifications
    222
  - Block Diagram
    223
  - Led Indicators
    223
  - Transmission Mode
    224
    
    Ad Hoc Mode
    224
    
    Infrastructure Mode
    224
  - Security Features
    225
    
    Using the SSID in Ad Hoc Mode
    225
  - Troubleshooting Notes
    226
    
    Channel Settings
    226
    
    Communication Status
    226
    
    Troubleshooting Steps
    227
- Bluetooth (Wireless)
  228
  - Specifications
    228
  - Block Diagram
    228
  - Communication Using Bluetooth
    229
    
    Frequency Hopping Spread Spectrum (FHSS)
    229
    
    Piconet
    229
    
    Profiles
    230
  - Security Features
    230
    
    PIN Code (Personal Identification Number)
    230
    
    Public and Private Mode
    230
- Connector Pin Descriptions
  231
  - CN1 (on ECB)/CN1 (on LSU)
    231
  - CN2 (on ECB)/CN3 (on LSU)
    231
G081/G092 VI SM

231
- CN3 (on ECB)/CN2 (on LSU)
  231
- CN5 (on ECB)/CN1 (on High Voltage Board)
  232
- Cn6 Pcu
  232
- CN7 Front/Right Door Sensor
  232
- CN8 Power Supply Unit Fan
  232
- CN9 Fusing Fan
  232
- CN10 (on ECB)/CN1503 (on Toner Empty Sensor Board)
  233
- CN11 Toner Cartridge Cover Sensor
  233
- CN12 (on ECB)/CN1 (on CMY Motor)/Cn1 (BK Motor)
  233
- CN13 (on ECB)/CN1509 (PCU Home Sensor)
  234
- CN14 (on ECB) / CN1510 (on TB Unit Cam Home Position Sensor)
  234
- CN15 (on ECB)/CN1601 (on Fusing Unit)
  234
- CN17 (on ECB)/CN1505 (on Paper Full/Jam Sensor)
  234
- CN18 (on ECB) / CN1506 (on Paper Empty/Registration Sensor)
  235
- CN19 Pickup Solenoid
  235
- CN20 Registration Clutch
  235
- CN21 BK Solenoid
  235
- CN22 Paper Pickup Motor
  235
- CN23 (on ECB)/CN1507 (on By-Pass Tray Paper Detection Sensor)/Cn1512 (on By-Pass Tray Home Position Sensor)
  236
- CN24 Mono/Color Changer Solenoid
  236
- CN25 TB Unit Cam Switching Solenoid
  236
- CN26 Switchback Solenoid
  236
- CN27 (on ECB)/CN1501 (on Color Registration Sensor)
  237
- CN28 Paper Size Detector
  237
- CN29 (on ECB)/CN1 (on Humidity/Temperature Sensor)
  237
- CN30 Sub Fusing Fan
  238
- CN31 (on ECB)/CN1 (on Option Paper Feeder Unit)
  238
- CN32 (on ECB)/CN2503 (on Power Supply Board)
  238
- CN33 (on ECB)/CN2505 (on Power Supply Board)
  239
- CN34 (on ECB)/CN2504 (on Power Supply Board)
  239
- CN35 LSU Safety Interlock Switch
  239
- CN38 Main Control Board 2 of 3
  240
- CN38 Main Control Board 3 of 3
  242
- CN39 (on ECB)/CN1508 (on Duplex Unit Jam Sensor)
  242
- CN43 Toner Supply Solenoid
  243
- CN45, CN46 (on ECB)/CN3301 (on LCD Panel)
  243
- CN1502 Waste Toner Full Sensor
  244
- CN2001 AC Line
  244
- CN2203 (on IH Power Board)
  244
- CN2204 IH Heater
  244
- CN1502 Power Switch
  244
- CN1502 (on Power Supply Board)/Cn2207 (on IH Power Supply Board)
  245
- CN2506 Side/Front Door Interlock Switch
  245
- Specifications
  247
  - General Specifications
    249
    
    Supported Paper Sizes
    251
  - Software Accessories
    252
    
    Printer Drivers
    252
    
    Utility Software
    252
  - Machine Configuration
    253
- Paper Feed Unit Type 3000 G342
  255
  - Replacement and Adjustment
    259
  - Exterior Covers
    259
  - Feeder Board
    260
  - Paper Size Switch
    260
  - Sensor Board, Motor, and Pickup Solenoid
    261
  - Jam Sensor and Paper Empty Sensor Arms
    261
  - Pickup and Paper Feed Rollers
    262
  - Pinch Rollers
    263
  - Paper Cassette
    264
  - Detailed Descriptions
    265

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