Ricoh G108 Manuals

Manuals and User Guides for Ricoh G108. We have 2 Ricoh G108 manuals available for free PDF download: Service Manual, Option Setup Manual

Ricoh G108 Service Manual

Ricoh G108 Service Manual (278 pages)

Brand: Ricoh | Category: Printer | Size: 13.51 MB

Table of Contents

Table of Contents

13
- Service Manual
  1
- Important Safety Notices
  23
- Laser Safety
  24
- Symbols and Abbreviations
  25
- Installation
  
  29
  - Installation Requirements
    31
    
    Environment
    31
    
    Machine Level
    31
    
    Machine Space Requirement
    32
    
    Printer and Duplex Unit
    32
    
    Printer Only
    32
    
    Power Requirement
    33
  - Installation Procedure
    34
    
    Installing the Printer
    34
    
    Necessary Settings
    34
  - Moving the Machine
    35
- Preventive Maintenance
  
  37
  - User Maintenance
    39
    
    Page Count
    39
  - Service Maintenance
    40
    
    Necessary Setting
    40
    
    Page Count
    40
- Replacement and Adjustment
  
  41
  - Exterior Covers
    43
    
    Top Cover
    43
    
    Left Cover
    44
    
    Right Cover
    44
    
    Front Cover
    45
    
    Rear Cover
    45
  - Optics Unit
    46
    
    Caution Decal Location
    46
    
    Removing the Laser Optics Unit
    46
  - Opc
    47
    
    Opc Belt Sensor
    47
    
    Opc Belt Unit
    47
    
    Charge Roller and Cleaning Roller
    48
    
    Erase Lamp
    49
  - Sm G108
    49
    
    Development
    50
    
    Emitter
    50
    
    Receptor
    50
    
    Toner End Sensor
    50
    
    Development Unit Sensor and Development Clutch
    51
    
    Transfer Belt
    52
    
    Transfer Belt Sensor and ID Sensor
    52
    
    Transfer Belt Unit
    52
    
    Transfer Belt Cleaning Unit and Waste Toner Duct3-11
    53
    
    Waste Toner Bottle
    54
    
    Waste Toner Bottle Holder
    54
    
    Waste Toner Collection Unit
    54
    
    Waste Toner Duct
    55
    
    Ohp Sensor, Paper End Sensor, and Registration Sensor
    56
    
    Paper Feed
    56
    
    Paper Feed Roller and Separator Pad
    56
    
    Temperature Sensor, Paper Size Sensor and Paper Tray Sensor
    57
    
    Paper Exit Sensor and Paper Overflow Sensor
    58
    
    Paper Transfer and Paper Exit
    58
    
    Transfer Roller Unit
    58
    
    Discharge Brush
    59
    
    Fusing Unit and Fusing Lamp
    60
    
    Circuit Board
    62
    
    Controller and Base Engine Control Unit
    62
    
    Input Output Device
    63
    
    Direct Current Unit
    64
    
    High Voltage Unit
    65
    
    Drive Path
    66
    
    Main Motor Drive Path
    66
    
    Development Motor Drive Path
    68
    
    Exhaust Fan
    69
    
    Optics Unit Fan
    69
    
    Psu Fan
    69
    
    Fusing Fan
    70
    
    Front Cover Switch
    71
    
    Interlock Switch
    71
    
    Top and Rear Cover Switches
    71
    
    Leading Edge Registration
    72
    
    Registration
    72
    
    Side-To-Side Registration
    73
- Troubleshooting
  
  75
  - Service Call
    77
    
    Sc Code Classification
    78
    
    Sc Table
    79
    
    Possible Cause
    83
  - Image Quality
    84
    
    Background
    84
    
    Countermeasures
    84
    
    Missing Image at Edge
    84
    
    Possible Cause
    84
    
    Symptom
    84
    
    Jitter
    85
    
    Countermeasures
    86
    
    Possible Cause
    86
    
    Ribbing
    86
    
    Symptom
    86
    
    Countermeasures
    87
    
    Possible Cause
    87
    
    Symptom
    87
    
    Wrinkle/Image Migration
    87
    
    Countermeasures
    88
    
    Possible Cause
    88
    
    Symptom
    88
    
    Black Line
    89
    
    Countermeasures
    89
    
    Possible Cause
    89
    
    Symptom
    89
    
    Countermeasures
    90
    
    Possible Cause
    90
    
    Symptom
    90
    
    Vertical Lines Not Acceptably Straight
    90
    
    Countermeasures
    91
    
    Symptom
    91
  - Sm G108
    91
  - White Band
    91
  - White Spots / Black Spots
    92
  - Incorrect Color Registration
    93
  - Residual Image
    94
  - Back Stain
    95
    
    Countermeasures
    96
  - Insufficient Fusing
    96
    
    Countermeasures
    97
    
    Possible Cause
    97
    
    Symptom
    97
    
    Uneven Density Among Different
    97
    
    Electrical Component
    98
    
    Photo Sensors
    98
    
    Reflective Photo Sensors
    98
    
    Sensors
    98
    
    Bcu
    99
    
    Blown Fuse Condition
    99
    
    Controller
    99
    
    Duplex Unit
    99
    
    Led
    99
    
    Operation Panel
    99
- Service Tables
  
  101
  - Service Program Mode
    103
    
    Activating SP Mode
    103
    
    Operating Service Program Mode
    103
    
    Quitting SP Mode
    104
    
    Selecting a Service Program
    104
    
    Specifying a Setting
    104
    
    Tables
    105
    
    Bit Switches
    108
    
    Adjusting Printer Gamma
    109
    
    Toner Control Set (Service SP1-101)
    111
    
    Engine
    112
    
    SP1: Feed
    112
    
    SP2: Drum
    113
    
    SP5: Mode
    114
    
    SP7: Data Log
    124
    
    Memory Clear/Counter Clear
    138
    
    Telephone Number Setting (Sp5-812)
    139
  - Firmware Update
    140
    
    Handling SD Card
    140
    
    Network Connection
    140
    
    Precautions
    140
    
    Types of Firmware
    140
    
    Upload or Download
    140
    
    Example
    141
    
    File Arrangement
    141
    
    How the Program Works
    141
    
    Procedure
    142
    
    Updating
    142
    
    Error Handling
    143
    
    Nvram Data Upload/Download
    143
    
    Power Failure
    143
    
    Uploading NVRAM Data
    143
    
    Downloading NVRAM Data
    144
    
    Error Code Table
    145
  - Sd Card Appli Move
    146
    
    Overview
    146
    
    Move Exec
    147
    
    Undo Exec
    148
  - Controller Self-Diagnostics
    149
    
    Overview
    149
    
    Detailed Self-Diagnostics
    150
  - Toner Density (Mass Amount) Control
    151
    
    Overview
    151
    
    Tma Control Switch
    151
    
    Adjusting Development Bias
    152
    
    Tma Status
    152
  - User Program Mode
    153
    
    Menu List
    153
    
    Quitting User Program
    153
    
    Starting User Program
    153
  - Dip Switches
    154
    
    BCU Board
    154
    
    Controller Board
    154
- Detailed Descriptions
  
  155
  - Overview
    157
    
    Component Layout
    157
    
    Paper Path
    158
    
    Drive Layout
    159
    
    Board Layout
    160
    
    Controller
    160
    
    Base Engine Control Unit (BCU)
    161
    
    Controller
    161
    
    Input Output Device (IOD)
    161
    
    Power Supply Unit and High Voltage Unit
    161
    
    Printing Process
    162
    
    ID Sensor Calibration
    164
    
    Overview
    164
  - Toner Mass Amount Control
    164
    
    Test Pattern Processing
    165
    
    Development Bias Adjustment
    166
    
    Reference Equation Processing
    166
  - Optical Housing Unit
    167
    
    Optical Path
    167
    
    Laser Synchronization
    168
    
    Specifications
    168
    
    Laser Exposure
    169
    
    Optics Unit Fan
    169
    
    Safety Switch
    170
  - Opc Belt
    171
    
    Drive
    171
    
    Opc Belt Cleaning
    171
    
    Charge Roller and Cleaning Roller
    172
    
    Opc Belt Sensor
    173
    
    Quenching
    173
  - Development Unit
    174
    
    Development Unit Sensor
    174
    
    Overview
    174
    
    Drive
    175
    
    Contact Mechanism
    176
    
    Development Unit Contact Mechanism
    176
    
    Development Bias
    177
    
    Spring Clutch
    177
    
    Mechanism
    178
    
    Near End and End
    178
    
    Toner End Sensor
    178
  - Transfer Belt
    179
    
    Drive
    179
    
    ID Sensor
    180
    
    Transfer Belt Sensor
    180
    
    Transfer Belt Sensor and ID Sensor
    180
    
    ID Sensor Cleaning
    181
    
    Cleaning Mechanism
    182
    
    Drive
    182
    
    Transfer Belt Cleaning
    182
    
    Contact-Release Mechanism
    183
    
    Waste Toner Agitator
    184
    
    Drive
    185
    
    Overview
    185
    
    Waste-Toner Collection Unit
    185
    
    Messages
    186
    
    Near-Full and Full
    186
    
    Waste Toner Sensor
    186
  - Paper Tray Unit
    187
    
    Overview
    187
    
    Paper Lift
    188
    
    Drive
    189
    
    Paper Feed
    189
    
    Paper Feed Roller
    189
    
    Mechanism
    190
    
    Paper Size
    190
    
    Paper Size and Paper Tray Detection
    190
  - Sm G108
    191
    
    Configuration Page and Utilities
    191
    
    Ohp Sensor
    191
    
    Reflective Photosensor
    191
    
    OHP Sensor, User Setting, and Printer Driver
    192
    
    Paper End Sensor
    193
    
    Drive
    194
    
    Paper Registration
    194
    
    Paper Registration and Paper Transfer
    194
    
    Registration Roller
    194
    
    Registration Sensor
    194
    
    Contact Release Mechanism
    195
    
    Discharge Plate
    195
    
    Paper Transfer
    195
    
    Paper Transfer Bias
    195
    
    Transfer Roller
    195
    
    Fusing Unit
    196
    
    Overview
    196
    
    Drive
    197
    
    Fusing Process
    197
    
    Pressure Unit
    197
    
    Main Components
    198
    
    Temperature Control
    198
    
    Energy Saver Mode
    199
    
    Temperature
    199
    
    Drive
    200
    
    Paper Exit Overflow Sensor
    200
    
    Paper Exit Unit
    200
    
    Controller
    201
    
    Overview
    201
    
    Board Layout
    202
    
    Auto Continue
    203
    
    Controller Functions
    203
    
    Manual Tray Select
    203
    
    Tray Priority
    203
    
    Black over Print
    204
    
    Black over Print Disabled
    204
    
    Black over Print Enabled
    204
    
    NDPU and des
    205
    
    Network Data Protection Unit
    205
    
    Supported Network Interface
    205
    
    Ethernet Board
    206
    
    Ethernet Board Layout
    206
    
    Ethernet
    207
    
    General Features
    208
    
    Hot Plugging
    208
    
    Overview
    208
    
    Plug and Play
    208
    
    Usb 2.0
    208
    
    USB 2.0 and 1.1
    208
    
    Usb Connectors
    208
    
    Pin Assignment
    209
    
    Related SP Mode
    209
    
    Remarks
    209
    
    Ieee 802.11B (Wireless Lan)
    210
    
    LED Indicators
    210
    
    Specifications
    210
    
    Ad Hoc Mode
    211
    
    Infrastructure Mode
    211
    
    Transmission Modes
    211
    
    MAC Address
    212
    
    Security Features
    212
    
    Service Set ID
    212
    
    SSID in Ad Hoc Mode
    212
    
    Wired Equivalent Privacy (WEP)
    212
    
    Troubleshooting
    213
    
    Communication Status
    214
    
    Procedure
    214
    
    Block Diagram
    215
    
    Bluetooth
    215
    
    Specifications
    215
    
    Communication
    216
    
    Frequency Hopping Spread Spectrum (FHSS)
    216
    
    Piconet
    216
    
    PIN Code (Personal Identification Number)
    217
    
    Profiles
    217
    
    Public and Private Mode
    217
    
    Security Features
    217
- Specifications
  
  219
  - General Specifications
    221
  - Supported Paper Sizes
    223
  - Software Accessories
    224
    
    Printer Drivers
    224
    
    Utility Software
    224
  - Machine Configuration
    225
    
    Duplex Unit
    227
    
    Legal Paper Tray
    227
    
    Paper Tray Unit
    227
Paper Feed Unit G389

231
- Read this First
  233
- 1 Replacement and Adjustment
  
  235
  - Exterior Covers
    235
    
    Bottom Base and Rear Cover
    236
    
    Left Cover
    238
    
    Right Cover
    238
  - Feed Roller and Separator Pad
    239
    
    Feed Roller
    239
    
    Separator Pad
    241
  - Sensors
    242
    
    Paper End Feeler and Link Lever
    242
    
    Paper End Sensor
    242
    
    Paper Size Sensor
    243
  - Paper Feed Clutch
    245
  - Relay Gears
    247
- 2 Details
  
  248
  - Paper Size and Paper Tray Detection
    248
  - Paper Lift
    250
  - Paper Feed
    251
  - Paper End Detection
    252
    
    Paper End Sensor
    252
    
    Link Lever
    253
Duplex Unit G390

257
- 1 Replacement and Adjustment
  
  259
  - Exterior Cover
    259
  - Paper Guide
    261
    
    Lower Guide
    261
    
    Rear Guide
    261
    
    Top Guide
    262
    
    Upper Guide
    263
  - Screw Base
    263
  - Controller Board
    264
  - Drive Path
    264
    
    Motor
    264
    
    Gears and Timing Belts
    265
  - Roller
    266
    
    Entrance Roller
    266
    
    Upper Transport Roller
    266
    
    Inverting Roller
    267
    
    Lower Transport Roller
    267
  - Interlock Safety Switches
    267
  - Sensor
    268
    
    Paper Sensor 2
    268
  - Paper Gate Solenoid
    269
  - Stopper
    270
- 2 Detailed Section Descriptions
  
  271
  - Component Layout and Paper Path
    271
  - Drive Layout
    272
  - Duplex Printing Process
    273
  - Paper Gate Control
    274
    
    Paper Path
    274
    
    Possible Paper Jam
    274
    
    Solenoid and Lever
    274
  - Paper Transport
    275
    
    Motors and Rollers
    275
    
    Overview
    275
  - Safety Switches
    276
- 3 Troubleshooting
  
  277
  - Loose Connection
    277
  - Paper Jam
    278

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Ricoh G108 Option Setup Manual

Ricoh G108 Option Setup Manual (40 pages)

Brand: Ricoh | Category: All in One Printer | Size: 1.18 MB

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