Ricoh A250 Manuals

Manuals and User Guides for Ricoh A250. We have 3 Ricoh A250 manuals available for free PDF download: Service Manual

Ricoh A250 Service Manual

Ricoh A250 Service Manual (913 pages)

Brand: Ricoh | Category: Copier | Size: 16.67 MB

Table of Contents

Table of Contents

13
- Overall Machine Information
  41
- Overall Information
  
  45
  - Machine Configuration
    45
  - Paper Path
    46
    
    Mechanical Component Layout
    47
    
    Electrical Component Descriptions
    48
    
    Drive Layout
    51
  - Copy Process
    52
  - Board Structure
    54
- Detailed Descriptions
  
  60
  - Description
    55
    
    Detailed Section Descriptions
    59
    
    Scanner Drive
    60
    
    Original Size Detection in Platen Mode
    61
  - Image Processing
    63
    
    Sbu (Sensor Board Unit)
    65
    
    Auto Image Density (Ads)
    66
    
    Image Processing Unit (Ipu)
    67
    
    Memory Controller and Extended Memory Board (Emb)
    78
    
    Video Control Unit (Vcu)
    79
    
    Image Processing Summary
    81
    
    Copy Quality
    86
  - Laser Exposure
    91
    
    Optical Path
    92
    
    Auto Power Control (Apc)
    93
    
    Ld Safety Switch
    94
  - All-In-One Cartridge (Aio Cartridge)
    95
    
    Drive
    96
    
    Drum Charge
    97
    
    Development
    98
    
    Drum Cleaning
    101
    
    Image Transfer and Paper Separation
    102
    
    Transfer Current Settings
    103
    
    Transfer Roller Cleaning
    104
    
    Paper Feed
    105
    
    Built-In Tray
    106
    
    By-Pass Tray
    109
    
    Paper Registration
    111
    
    Misfeed Detection
    112
    
    Image Fusing
    115
    
    Fusing Unit Drive
    116
    
    Pressure Roller/Paper Exit
    117
    
    Fusing Temperature Control
    118
    
    Overheat Protection
    121
  - Installation
    
    125
    
    Machine Level
    126
    
    Minimum Space Requirements
    127
    
    Power Requirements
    128
    
    Copier Installation
    129
    
    Copier Installation Procedure
    130
    
    Adf Installation
    134
    
    Adf Installation Procedure
    135
    
    Paper Tray Unit (1 Tray) Installation
    138
    
    Paper Tray Unit Installation Procedure
    139
Paper Tray Unit (2 Trays) Installation

142
- Paper Tray Unit (2 Trays) Installation
  143
- Paper Tray Unit (2 Trays) Installation
  144
- 1 Screw - M4 X 10
  
  147
  - Accessory Check
    147
  - Bin Sorter Installation
    147
    
    Bin Sorter Installation Procedure
    148
  - Platen Cover Installation
    153
  - 2 Screw - M4 X 5
    
    154
    
    Extended Memory Board Installation
    154
    
    Extended Memory Board Installation Procedure
    155
    
    Drum Heater Installation (Option)
    156
    
    Tray Heater Installation
    158
    
    Key Counter
    164
  - Service Tables
    
    169
    
    Laser Unit
    170
    
    Service Program Mode
    171
    
    Service Program Mode Tables
    172
    
    Test Pattern Printing (Sp5-902)
    206
    
    Input Check (Sp5-803)
    207
    
    Output Check (Sp5-804)
    212
    
    Copy Jam History Display (Sp7-903)
    214
    
    Original Jam History Display (Sp7-905)
    215
    
    System Parameter and Data Lists (Sp5-992)
    216
    
    Memory All Clear (Sp5-801)
    217
    
    Program Upload/Download
    218
    
    Nvram Data Download
    221
    
    Df Aps Sensor Output Display (Sp6-901)
    224
    
    Display Language (Sp5-808)
    225
    
    User Tools
    226
    
    Leds
    228
    
    Rom History
    229
  - Replacement and Adjustment
    
    240
    
    Preventive Maintenance Schedule
    235
    
    How to Clear the Maintenance Counter
    236
    
    Replacement and Adjustment
    239
    
    Front Cover
    240
    
    Upper Right Cover
    241
    
    Operation Panel
    242
    
    Scanner
    243
    
    Lens Block Removal
    245
    
    Exposure Lamp Replacement
    246
    
    St Scanner Alignment Adjustment
    247
    
    Nd Scanner Position Adjustment
    248
    
    Laser Unit
    249
    
    Laser Unit/Toner Shield Glass Removal
    250
    
    Ld Unit/Laser Synchronization Detector Removal
    251
    
    Polygonal Mirror Motor Removal
    252
    
    Laser Unit Alignment Adjustment
    253
    
    Image Transfer
    254
    
    Fusing
    255
    
    Hot Roller, Fusing Lamp and Thermofuse Replacement
    256
    
    Pressure Roller Replacement
    258
    
    Fusing Thermistor Replacement
    259
    
    Hot Roller Stripper Pawl Replacement
    260
    
    Paper Feed
    261
    
    Friction Pad Replacement
    262
    
    Standard Tray Paper Feed Clutch Replacement
    263
    
    Vertical Transport Roller/Sensor Clutch Replacement
    264
    
    By-Pass Feed Roller Replacement
    265
    
    By-Pass Feed Friction Pad Replacement
    266
    
    By-Pass Feed Sensor Replacement
    267
    
    By-Pass Tray Removal
    268
    
    By-Pass Feed Paper Width Sensor Removal
    269
    
    Registration Roller Removal
    270
    
    Registration Sensor Replacement
    271
    
    Toner End Sensor Replacement
    272
    
    Others
    273
    
    Iob (Input Output Board) Replacement
    274
    
    Bicu (Base-Engine Image Control Unit Replacement
    275
    
    Power Supply Unit and B/C/T Power Pack Replacement
    276
    
    Standard White Density Adjustment
    277
    
    Copy Adjustment Printing/Scanning
    278
    
    Scanning
    280
    
    Adf Image Adjustment
    282
    
    Troubleshooting
    285
    
    Sc Code Descriptions
    286
    
    Blown Fuse Table
    294
    
    Sensors
    295
    
    Copy Quality
    296
    
    Firmware History
    298
    
    Overall Information
    305
    
    Specifications
    305
    
    Mechanical Component Layout
    306
    
    Electrical Component Layout
    307
    
    Electrical Component Description
    308
    
    Drive Layout
    309
    
    Detailed Section Descriptions
    310
    
    Pick-Up and Separation
    312
    
    Original Transport and Exit Mechanism
    313
    
    Stamp
    314
    
    Timing Charts
    315
    
    A4 Sideways, Stamp Mode
    316
    
    Jam Detection
    317
    
    Overall Electrical Circuit
    318
    
    Replacement and Adjustment
    319
    
    Pick-Up Roller Replacement
    320
    
    Original Set Sensor Replacement
    321
    
    Original Width/Length/Trailing Edge Sensor Replacement
    322
    
    Original Exit Tray/Front Cover/Rear Cover Removal
    323
    
    Feed Clutch/Pick-Up Sol/Transport Motor Replacement
    324
    
    Df Feed Cover Removal
    325
    
    Stamp Solenoid Replacement
    326
    
    Overall Machine Information
    329
    
    Mechanical Component Layout
    330
    
    Electrical Component Layout
    331
    
    Electrical Component Description
    332
    
    Drive Layout
    333
    
    Detailed Descriptions
    334
    
    Paper Lift Mechanism
    335
    
    Paper End Detection
    337
    
    Paper Height Detection
    338
    
    Paper Size Detection
    340
    
    Side and End Fences
    341
  - Paper Tray Unit (A860)
    
    344
    
    Replacement and Adjustment
    342
    
    Tray Main Board Replacement
    343
    
    Relay Clutch Replacement
    344
    
    Upper Paper Feed Clutch Replacement
    345
    
    Lower Paper Feed Clutch Replacement
    346
    
    Lift Motor Replacement
    347
    
    Paper End Sensor Replacement
    348
    
    Paper Size Switch Replacement
    349
    
    Feed Roller Replacement
    366
    
    Tray Motor Replacement
    367
    
    Lift Motor Replacement
    369
    
    Paper End Sensor Replacement
    370
    
    Overall Information
    373
    
    Mechanical Component Layout
    374
    
    Electrical Component Layout
    375
    
    Electrical Component Description
    376
    
    Detailed Section Descriptions
    377
    
    Replacement and Adjustment
    378
    
    Introduction
    381
    
    Windows 95 Version Confirmation
    382
    
    Swapbox Installation
    384
    
    Software (Swapftl) Installation
    385
    
    Flash Memory Card Automatic Detection
    386
    
    Troubleshooting
    387
    
    Failed to Open Pccard Errors
    388
    
    Swapftl Problem with Notebook Computers
    389
    
    Complete Uninstall
    390
    
    Overview
    393
    
    Operation
    394
    
    Downloading to a Machine
    396
    
    Functions
    397
    
    File – Save as
    398
    
    Image Menu
    399
    
    Image – Read
    400
    
    Image – Write
    401
    
    Image – Verification
    402
    
    Help – about Swaputi
    403
    
    Features List
    410
    
    Capabilities of Programmable Items
    413
    
    Overall Machine Control
    414
    
    Automatic Service Calls
    422
    
    Scanning Features
    425
    
    Fax Communication Features
    435
    
    Bit Switches
    475
    
    System Switches
    475
    
    Scanner Switches
    489
    
    Printer Switches
    494
    
    Communication Switches
    499
    
    Ncu Parameters
    515
    
    Service Ram Addresses
    530
    
    Fax Sc Codes
    566
    
    Fax Sc Code Table
    567
    
    Installation Procedure
    571
    
    User Level Programming
    573
    
    Service Level Programming
    574
    
    G4 Parameter Switches
    584
    
    Transport Layer
    593
    
    Session Layer
    594
    
    Document Layer
    595
    
    Presentation Layer
    595
    
    G4Ccu Status Codes
    596
    
    General Specifications
    603
    
    Supported Paper Sizes
    604
    
    Service Tools
    605
    
    Software Accessories
    605
    
    Utility Software
    605
    
    Machine Overview
    606
    
    Printer Controller
    617
    
    Bit Switch Programming
    628
    
    Service Menu
    628
    
    Block Diagram
    654
    
    Component Layout
    655
    
    Hardware Installation
    657
    
    Installation
    657
    
    Printer Manager for Admin
    657
    
    Utility Software Setup
    657
    
    Web Status Monitor
    657
    
    Netware Networks
    658
    
    Setting up the Nib for Various Networks
    658
    
    Tcp/Ip Networks
    659
    
    Netbeui Networks
    660
    
    Possible Problems with DHCP Parameter Settings
    660
    
    Appletalk (Ethertalk) Networks
    661
    
    Nib Log List
    663
    
    Nib Status Sheet
    663
    
    Nvram Reset
    663
    
    Printing Reports
    663
    
    Service Tables and Procedures
    663
    
    Led Indications
    665
    
    Troubleshooting
    665
    
    Output Check Table
    680
    
    Key Counter Installation
    818
    
    Service Call Conditions
    820
Network Interface Board B307

886
- Firmware History
  887

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Ricoh A250 Service Manual

Ricoh A250 Service Manual (247 pages)

Brand: Ricoh | Category: Printer | Size: 4.11 MB

Table of Contents

Table of Contents
4
1 Overall Machine Information

11
- Specifications
  11
- Machine Configuration
  15
- Paper Path
  16
- Mechanical Component Layout
  17
- Electrical Component Descriptions
  18
  - Copier Engine
    18
- Drive Layout
  21
- Copy Process
  22
  - Overview
    22
- Board Structure
  24
  - Overview
    24
  - Description
    25
2 Detailed Section Descriptions

26
- Scanning
  26
  - Overview
    26
  - Scanner Drive
    27
  - Original Size Detection in Platen Mode
    28
- Image Processing
  30
  - Overview
    30
  - Sbu (Sensor Board Unit)
    32
  - Auto Image Density (Ads)
    33
  - Image Processing Unit (Ipu)
    34
  - Memory Controller and Extended Memory Board (Emb)
    45
  - Video Control Unit (Vcu)
    46
  - Image Processing Summary
    48
- Laser Exposure
  58
  - Overview
    58
  - Optical Path
    59
  - Auto Power Control (Apc)
    60
  - Ld Safety Switch
    61
- All-In-One Cartridge (Aio Cartridge)
  62
  - Overview
    62
  - Drive
    63
  - Drum Charge
    64
  - Development
    65
  - Drum Cleaning
    68
- Image Transfer and Paper Separation
  69
  - Overview
    69
  - Transfer Current Settings
    70
  - Transfer Roller Cleaning
    71
- Paper Feed
  72
  - Overview
    72
  - Built-In Tray
    73
  - By-Pass Tray
    76
  - Paper Registration
    78
  - Misfeed Detection
    79
- Image Fusing
  82
  - Overview
    82
  - Fusing Unit Drive
    83
  - Pressure Roller/Paper Exit
    84
  - Fusing Unit Drive Release
    84
  - Fusing Temperature Control
    85
  - Overheat Protection
    88
  - Energy Saver Mode
    88
3 Installation

90
- Installation Requirements
  90
  - Environment
    90
  - Machine Level
    91
  - Minimum Space Requirements
    92
  - Power Requirements
    93
- Copier Installation
  94
  - Accessory Check
    94
  - Copier Installation Procedure
    95
- Adf Installation
  99
  - Accessory Check
    99
  - Adf Installation Procedure
    100
- Paper Tray Unit (1 Tray) Installation
  103
  - Accessory Check
    103
  - Paper Tray Unit Installation Procedure
    104
- Paper Tray Unit (2 Trays) Installation
  107
  - Accessory Check
    107
  - Paper Tray Unit Installation Procedure
    108
- 1-Bin Sorter Installation
  112
  - Accessory Check
    112
  - 1-Bin Sorter Installation Procedure
    113
- Platen Cover Installation
  118
  - Accessory Check
    118
  - Platen Cover Installation Procedure
    118
- Extended Memory Board Installation
  119
  - Accessory Check
    119
  - Extended Memory Board Installation Procedure
    120
- Drum Heater Installation (Option)
  121
- Optics Anti-Condensation Heater Installation (Option)
  122
- Tray Heater Installation
  123
4 Service Tables

129
- General Caution
  129
  - Aio Cartridge (All-In-One Cartridge)
    129
  - Transfer Roller Unit
    129
  - Scanner Unit
    129
  - Laser Unit
    130
  - Fusing Unit
    130
  - Paper Feed
    130
  - Others
    130
- Service Program Mode
  131
  - Service Program Mode Operation
    131
  - Service Program Mode Tables
    132
  - Test Pattern Printing (Sp5-902)
    166
  - Input Check (Sp5-803)
    167
  - Output Check (Sp5-804)
    172
  - Copy Jam History Display (Sp7-903)
    174
  - Original Jam History Display (Sp7-905)
    175
  - System Parameter and Data Lists (Sp5-992)
    176
  - Memory All Clear (Sp5-801)
    177
  - Program Upload/Download
    178
  - Nvram Data Download
    181
  - Aps and Platen/Df Cover Sensor Output Display
    183
  - (Sp4-301)
    183
  - Df Aps Sensor Output Display (Sp6-901)
    184
  - Display Language (Sp5-808)
    185
  - Serial Number Input (Sp5-811)
    185
- User Tools
  186
  - How to Enter and Exit User Tools
    186
  - User Tools Table
    186
- Leds
  188
- Special Tools and Lubricants
  188
  - Special Tools
    188
  - Lubricants
    188
5 Preventive Maintenance Schedule

189
- Pm Table
  189
- How to Clear the Maintenance Counter
  190
6 Replacement and Adjustment

191
- Exterior Removal
  191
  - Rear Cover
    191
  - Copy Tray
    191
  - Left Cover
    191
  - Front Cover
    192
  - Upper Right Cover
    193
  - Lower Right Cover
    193
  - Right Small Cover
    193
  - Operation Panel
    194
- Scanner
  195
  - Exposure Glass Removal
    195
  - Lens Block Removal
    197
  - Exposure Lamp Replacement
    198
  - 1St Scanner Alignment Adjustment
    199
  - 2Nd Scanner Position Adjustment
    200
- Laser Unit
  201
- Image Transfer
  206
  - Transfer Roller Removal
    206
- Fusing
  207
- Paper Feed
  213
  - Paper Feed Roller Replacement
    213
  - Friction Pad Replacement
    214
  - Standard Tray Paper Feed Clutch Replacement
    215
  - Vertical Transport Roller/Sensor/Clutch Replacement
    216
  - By-Pass Feed Roller Replacement
    217
  - By-Pass Feed Friction Pad Replacement
    218
  - By-Pass Feed Sensor Replacement
    219
  - By-Pass Tray Removal
    220
  - By-Pass Feed Paper Width Sensor Removal
    221
  - Registration Roller Removal
    222
  - Registration Sensor Replacement
    223
  - Toner End Sensor Replacement
    224
- Others
  225
- Standard White Density Adjustment
  229
- Copy Adjustment Printing/Scanning
  230
  - Printing
    230
  - Scanning
    232
  - Adf Image Adjustment
    234

Ricoh A250 Service Manual

Ricoh A250 Service Manual (34 pages)

Brand: Ricoh | Category: All in One Printer | Size: 0.29 MB

Table of Contents

A250/B001 Service Manual

2
- Service Manual
  1
Paper Tray Unit A861

9
- Overall Machine Information
  13
- Precautions
  14
- Troubleshooting
  15
- Overall Machine Information
  19
  - Overview
    20
- Overall Information
  21
- Overall Information
  
  23
  - Machine Configuration
    23
  - Detailed Descriptions
    24
- Detailed Descriptions
  
  32
  - Copy Process
    25
    
    A4 Sideways
    27
    
    Copy Tray
    28
    
    Parts Catalog
    29
    
    Paper Feed
    30
    
    Functions
    31
    
    Scanner
    32

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