Ricoh B048 Manuals

Manuals and User Guides for Ricoh B048. We have 4 Ricoh B048 manuals available for free PDF download: Service Manual

Ricoh B048 Service Manual (481 pages)

Service Manual

Brand: Ricoh | Category: Printer | Size: 14.2 MB

Table of Contents

15
- Service Manual
  1
- Important Safety Notices
  13
- Overall Machine Information
  
  23
  - Specifications
    25
  - Paper Path
    27
  - Drum Processes
    28
  - Mechanical Component Layout
    30
  - Drive Layout
    31
  - Electrical Component Layout
    32
- Detailed Section Descriptions
  
  35
  - Drum
    37
    
    Drum Characteristics
    37
    
    Drum Drive
    38
  - Charge
    39
    
    Overview
    39
    
    Charge Corona Circuit
    40
    
    Corona Unit Ventilation
    41
  - Exposure
    42
    
    Overview
    42
    
    Basic Operation (Manual Feed)
    43
    
    Paper and Original Feed
    43
    
    Original Jam Check Timing
    45
    
    Drive Mechanism
    46
    
    Fl Regulator Control
    47
    
    Manual ID Control
    48
  - Development
    49
    
    Overview
    49
    
    Drive Mechanism
    50
    
    Cross-Mixing
    51
    
    Toner Density Control
    52
    
    Recovery from Toner (Near) End Condition
    53
    
    Toner Near End Condition
    53
    
    Toner Density Sensor
    54
    
    Basic Concept
    55
    
    Development Bias
    55
    
    Manual Image Density Bias
    55
    
    Toner Supply
    56
  - Image Transfer and Paper Separation
    57
    
    Image Transfer
    57
    
    Paper Separation
    57
    
    Pre-Transfer Lamp (Ptl)
    57
    
    Pick-Off Mechanism
    58
    
    T/S Corona Circuit
    59
  - Cleaning
    60
    
    Overview
    60
    
    Collection of Used Toner
    61
  - Quenching
    62
  - Fusing and Paper Exit
    63
    
    Overview
    63
    
    Drive Mechanism
    64
    
    Fusing Unit Drive
    64
    
    Fusing Circuit Operation
    65
    
    Fusing Temperature Control
    65
    
    Overheat Protection
    66
    
    Temperature Control
    67
    
    Energy Saver Function
    70
    
    Fusing Entrance Guide Height
    71
  - Roll Cutting Rail
    72
- Installation
  
  73
  - Environment
    75
    
    Machine Level
    76
    
    Minimum Space Requirements
    76
    
    Power Source
    77
    
    Installation Procedure
    78
    
    Installation Procedure
    86
- Service Tables
  
  91
  - Preventive Maintenance Schedule
    93
    
    Pm Table
    93
    
    Regular Pm Procedure
    96
  - Service Tables
    99
    
    Test Points
    99
    
    Variable Resistors
    99
  - Service Tools
    100
    
    Service Program Mode
    100
    
    Service Program Mode Access Procedure
    100
    
    Service Program Mode Table
    102
    
    Input/Output Check Mode
    119
    
    Input/Output Check Mode Access Procedure
    119
    
    Input Check Mode Table
    120
    
    Output Check Mode Table
    121
    
    Power on Initial Setting Mode
    122
  - Jam Code List
    123
    
    Access Procedure
    123
    
    Jam Code Table
    123
  - Special Tools and Lubricants
    125
  - Service Remarks
    126
    
    Drum
    126
    
    Drum Unit
    126
    
    Charge Corona
    127
    
    Development
    128
    
    Optics
    128
    
    Cleaning Unit
    129
    
    Transfer and Separation
    129
    
    A Pressure Roller Evaluation Procedure
    130
    
    Fusing Unit
    130
  - Original Feed
    131
    
    Others
    131
    
    Paper Feed
    131
    
    Roll Feeder
    131
    
    Exterior Covers
    135
    
    Left Lower Cover
    135
    
    Left Side Cover Removal
    135
    
    Left Upper Cover
    135
    
    Rear Cover Removal
    135
    
    Right Lower Front, Right Lower Middle, and Right Lower Rear Covers
    135
    
    Right Side Cover Removal
    135
    
    Right Upper Cover
    135
    
    Optics
    136
    
    Original Feed Unit Removal
    136
    
    Exposure Glass Removal
    137
    
    Exposure Lamp Removal
    137
    
    Fiber Optics Array Removal
    138
    
    Light Sensor Replacement
    139
    
    Development Unit Removal
    140
    
    Developer Removal
    142
    
    Toner Density Sensor Replacement
    143
    
    Ptl Replacement
    144
    
    Bias Voltage for Image Area
    145
    
    Development Bias Voltage Adjustment
    145
    
    Bias Voltage for Non-Image Area
    146
    
    Drum Unit
    147
    
    Drum Unit Removal
    147
    
    Drum Replacement
    148
    
    Cleaning Blade Replacement
    149
    
    Charge Corona Unit Removal
    150
    
    Charge Corona Wire Replacement
    151
    
    Pick-Off Pawl Unit Removal
    152
    
    Grid Voltage Adjustment
    153
    
    Drum Current Adjustment
    154
    
    Charge Current Adjustment
    156
    
    Transfer Current Adjustment
    157
    
    Separation Current Adjustment
    158
  - Fusing
    160
    
    Fusing Unit Removal
    160
    
    Hot Roller Replacement
    162
    
    Pressure Roller Replacement
    163
    
    Hot Roller Stripper Unit Replacement
    164
    
    Pressure Roller Stripper Unit Replacement
    164
    
    Pressure Roller Thermistor Replacement
    164
    
    Fusing Thermofuse Replacement
    165
    
    Hot Roller Thermistor Replacement
    165
    
    Fusing Temperature Adjustment
    166
  - T & S Corona Unit
    167
    
    T & S Corona Unit Removal
    167
    
    Preparation
    168
    
    Transfer and Separation Corona Wire Replacement
    168
    
    Separation Corona Wire Replacement
    169
    
    Transfer Corona Wire Replacement
    169
  - Others
    170
    
    Ozone Filter Replacement
    170
    
    Anticondensation Heater Installation
    171
  - Copy Quality Adjustment
    172
    
    Light Sensor Adjustment
    173
    
    Image Bias Adjustment
    174
    
    Registration Adjustment
    175
    
    Toner Density Adjustment
    175
- Troubleshooting
  
  177
  - Copy Quality Troubleshooting
    179
    
    Low Image Density
    179
    
    Uneven Copy Image
    180
    
    Dirty Background
    181
    
    Black Line or Band
    182
    
    Entirely Blank Copy
    183
    
    Paper Creasing
    184
  - Service Call Condition
    185
    
    SC Code E-1: Exposure Lamp Abnormal
    185
    
    SC Code E-2: Fusing Thermofuse Open
    185
    
    SC Code E-3: Hot Roller Thermistor Open
    186
    
    SC Code E-4: Hot Roller Thermistor Short
    186
    
    SC Code E-5: Pressure Roller Thermistor Open
    186
    
    SC Code E-6: Pressure Roller Thermistor Short
    187
    
    SC Code E-7: Fusing Overheat
    187
    
    SC Code E-8: Fusing Warm-Up Error
    188
    
    SC Code E-9: Toner Density Sensor Abnormal
    188
    
    SC Code E-10: Main Motor Abnormal
    189
    
    SC Code E-11: Toner Density Sensor Adjustment Error
    189
  - Blown Fuse Table
    190
    
    Power Supply Unit
    190
- Roll Feeder
  
  191
  - Specifications
    193
  - Mechanical Component and Drive Layout
    194
  - Electrical Component Descriptions
    195
  - Mechanical Operation
    197
    
    Basic Operation
    197
    
    Cutter Unit Opening and Closing Mechanism
    199
    
    Cutter Operation
    200
  - Service Tables
    201
    
    Blown Fuse Condition
    201
    
    Test Points
    201
    
    Exterior Cover Removal
    209
    
    Front Cover Removal
    209
    
    Left and Right Cover
    209
    
    Replacement and Adjustment
    209
    
    Cutter Unit Removal
    210
    
    Paper Feed Roller Replacement
    211
    
    Paper Feed Motor Timing Belt Tension Adjustment
    212
    
    5 MM (for 420 to 1189 MM
    213
    
    Cut Length Adjustment
    213
    
    Roll Feed Paper Skew Adjustment
    214
Table of Contents

217
- 1 Overall Machine Information
  
  227
  - Specifications
    227
  - Paper Path
    229
  - Mechanical Component
    230
  - Drive Layout
    232
  - Electrical Component Descriptions
    233
- 2 Detailed Section Descriptions
  
  237
  - Drum
    237
    
    Drum Drive
    237
  - Exposure
    238
    
    Paper and Original Feed (A252 Only)
    238
  - Development
    240
    
    Toner Density Control
    240
  - Fusing and Paper Exit
    241
    
    Overview (A252 Copier)
    241
- 3 Installation
  
  243
  - Installation Requirements
    245
    
    Environment
    245
    
    Machine Level
    246
    
    Minimum Space Requirements
    246
    
    Power Source
    247
    
    Copier
    248
  - Installation Procedure
    249
    
    Table (A)
    256
    
    Copy Tray (A836-10)
    258
- 4 Service Tables
  
  269
  - Service Tools
    271
    
    Service Program Mode
    271
    
    Input/Output Check Mode
    279
  - Jam Code List
    281
    
    Jam Code Table
    281
  - Service Remarks
    285
    
    Ac Drive Board
    285
- 5 Replacement and Adjustment
  
  287
  - Optics
    289
    
    Original Feed Unit Removal (A252 Only)
    289
    
    Exposure Glass Removal (A252 Only)
    290
    
    Fiber Optics Array Removal (A252 Only)
    290
    
    Exposure Lamp Removal
    291
    
    Light Sensor Replacement (A252 Only)
    292
    
    Synchro-Cut Length Adjustment (A252 Only)
    293
  - Drum Unit
    294
    
    Drum Unit Removal
    294
  - Fusing
    295
    
    Fusing Unit Removal
    295
  - T & S Corona Unit
    297
    
    Transfer and Separation Corona Wire Replacement
    297
  - Copy Quality Adjustment
    299
    
    Registration Adjustment
    299
- 6 Troubleshooting
  
  301
  - Service Call Conditiion
    303
    
    Sc Code E-14: Zero Cross Signal Detection Abnormal
    303
    
    Sc Code E-15: Main Switch Abnormal (U.s.a. Version Only)
    303
  - Blown Fuse Table
    304
    
    Power Supply Unit
    304
Detailed Section Descriptions/Detailed Section Descriptions

309
- Specifications
  324
- Paper Path
  325
- Mechanical Components
  326
- Electrical Components
  328
- Detailed Section Descriptions
  
  331
- Detailed Section Descriptions
  
  333
  - Exposure
    333
    
    Original Positioning
    333
    
    Paper and Original Feed (B048 Only)
    333
    
    Scanning
    334
    
    Start Key Enable
    335
    
    Toner Density Control
    336
    
    Recovery from Toner End Condition
    337
    
    Used Toner Collection
    338
  - Fusing and Paper Exit
    339
    
    Overview
    339
    
    Hot Roller Temperature Control
    340
    
    Temperature Control
    340
  - Energy Star Compliant Machines (All the Destination)
    341
- Installation
  
  343
  - Installation Requirements
    345
    
    Environment
    345
    
    Machine Level
    346
    
    Minimum Space Requirements
    346
    
    Power Source
    347
  - Installation Procedure
    349
    
    B047 Copier Only (Step 22 and 23)
    356
    
    B048 Copier Only (Step 21)
    356
    
    Table (B)
    357
    
    Copy Tray (B)
    359
    
    Roll Feeder1 and 2 (B435/B)
    363
    
    Roll Cutting Rail (B)
    372
  - Service Call Conditions
    413
    
    Sc Code Descriptions
    413
    
    SC Code E-1: Exposure Lamp Abnormal
    413
    
    SC Code E-2: Fusing Thermofuse Open
    413
    
    SC Code E-3: Hot Roller Thermistor Open
    413
    
    SC Code E-4: Hot Roller Thermistor Short
    414
    
    SC Code E-5: Pressure Roller Thermistor Open
    414
    
    SC Code E-6: Pressure Roller Thermistor Short
    414
    
    SC Code E-7: Fusing Overheat
    414
    
    SC Code E-10: Main Motor Abnormal
    415
    
    SC Code E-11: Toner Density Sensor Adjustment Error
    415
    
    SC Code E-8: Fusing Warm-Up Error
    415
    
    SC Code E-9: Toner Density Sensor Abnormal
    415
    
    SC Code E-13: Total Counter Abnormal
    416
    
    SC Code E-14: Zero Cross Signal Detection Abnormal
    416
    
    SC Code E-15: Main Switch Abnormal
    416
    
    SC Code E-17: Unstable Fusing Temperature
    416
    
    SC Code E-18: Fusing Lamp Continuous Light
    416
  - Blown Fuse Table
    417
    
    AC Drive Board
    417
    
    Europe Version
    417
    
    Power Supply Unit
    417
- Roll Feeder Unit
  
  419
- Overall Machine Information
  
  421
  - Specifications
    421
- Detailed Section Descriptions
  
  423
  - Mechanical Operation
    423
    
    Basic Operation
    423
    
    Drive Mechanism
    425
    
    Roll Edition Detection
    425
    
    Cutter Operation
    426
- Replacement and Adjustment
  
  427
  - Cutter Unit Replacement
    427
  - Roll Feed Leading Edge Sensor Replacement
    428
  - Roll Feed Unit Removal
    429
  - Roll Feed Clutch Replacement
    430
  - Roll Feed Motor Replacement
    431
  - Roll End Sensor Replacement
    432
  - Cut Length Adjustment
    433
    
    Preset Cut : Adjustment Standards: 3 MM
    433
  - Side Registration Adjustment
    434
  - Receiving Tray Cover Assembly
    480

Ricoh B048 Service Manual (439 pages)

Brand: Ricoh | Category: Copier | Size: 6 MB

Table of Contents

15
- Overall Machine Information
  
  21
- Specifications
  
  23
- Component Layout and Descriptions
  
  25
- Paper Path
  
  27
- Drum Processes
  
  28
- Mechanical Component Layout
  
  30
- Drive Layout
  
  32
- Electrical Component Descriptions
  
  33
- Installation
  
  37
- Environment
  
  39
  - Minimum Space Requirements
    40
  - Machine Level
    40
  - Power Source
    41
  - Installation Procedure
    42
  - Installation Procedure
    50
- Service Tables
  
  55
- Preventive Maintenance Schedule
  
  57
  - Pm Table
    57
  - Regular Pm Procedure
    60
- Service Tables
  
  63
  - Test Points
    63
  - Variable Resistors
    63
- Service Tools
  
  64
  - Service Program Mode
    64
    
    Service Program Mode Access Procedure
    64
    
    Service Program Mode Table
    66
    
    Input/Output Check Mode
    83
    
    Input/Output Check Mode Access Procedure
    83
    
    Input Check Mode Table
    84
    
    Output Check Mode Table
    85
    
    Power on Initial Setting Mode
    86
- Jam Code List
  
  87
  - Access Procedure
    87
  - Jam Code Table
    87
- Special Tools and Lubricants
  
  89
- Service Remarks
  
  90
  - Drum Unit
    90
    
    Drum
    90
    
    Charge Corona
    91
    
    Development
    92
    
    Optics
    92
    
    Cleaning Unit
    93
    
    Transfer and Separation
    93
    
    A Pressure Roller Evaluation Procedure
    94
    
    Fusing Unit
    94
    
    Original Feed
    95
    
    Others
    95
    
    Paper Feed
    95
    
    Roll Feeder
    95
- Replacement and Adjustment
  
  97
- Exterior Covers
  
  99
  - Left Side Cover Removal
    99
    
    Left Lower Cover
    99
    
    Left Upper Cover
    99
  - Right Side Cover Removal
    99
    
    Right Lower Front, Right Lower Middle, and Right Lower Rear Covers
    99
    
    Right Upper Cover
    99
  - Rear Cover Removal
    99
    
    Rear Cover
    99
- Optics
  
  100
  - Original Feed Unit Removal
    100
  - Exposure Glass Removal
    101
  - Fiber Optics Array Removal
    102
  - Light Sensor Replacement
    103
  - Development Unit Removal
    104
  - Developer Removal
    106
  - Toner Density Sensor Replacement
    107
  - Ptl Replacement
    108
  - Development Bias Voltage Adjustment
    109
    
    Drum Unit
    111
  - Drum Replacement
    112
  - Cleaning Blade Replacement
    113
    
    Charge Corona Unit Removal
    114
  - Charge Corona Wire Replacement
    115
  - Pick-Off Pawl Unit Removal
    116
  - Drum Current Adjustment
    118
    
    Hot Roller Replacement
    126
    
    Pressure Roller Replacement
    127
    
    Hot Roller Stripper Unit Replacement
    128
    
    Pressure Roller Stripper Unit Replacement
    128
    
    Pressure Roller Thermistor Replacement
    128
    
    T & S Corona Unit Removal
    131
    
    Preparation
    132
    
    Transfer and Separation Corona Wire Replacement
    132
    
    Separation Corona Wire Replacement
    133
    
    Transfer Corona Wire Replacement
    133
- Others
  
  134
  - Ozone Filter Replacement
    134
  - Anticondensation Heater Installation
    135
- Copy Quality Adjustment
  
  136
  - Light Sensor Adjustment
    137
  - Image Bias Adjustment
    138
  - Toner Density Adjustment
    139
  - Registration Adjustment
    139
- Troubleshooting
  
  141
- Copy Quality Troubleshooting
  
  143
  - Low Image Density
    143
  - Uneven Copy Image
    144
  - Dirty Background
    145
  - Black Line or Band
    146
  - Entirely Blank Copy
    147
  - Paper Creasing
    148
- Service Call Condition
  
  149
- Blown Fuse Table
  
  154
  - Power Supply Unit
    154
- Roll Feeder
  
  155
- Specifications
  
  157
- Mechanical Component and Drive Layout
  
  158
- Electrical Component Descriptions
  
  159
- Mechanical Operation
  
  161
  - Basic Operation
    161
  - Cutter Unit Opening and Closing Mechanism
    163
  - Cutter Operation
    164
- Service Tables
  
  165
  - Test Points
    165
  - Blown Fuse Condition
    165
- Installation Procedure
  
  166
- Replacement and Adjustment
  
  173
  - Exterior Cover Removal
    173
    
    Front Cover Removal
    173
    
    Left and Right Cover
    173
  - Cutter Unit Removal
    174
  - Paper Feed Roller Replacement
    175
  - Paper Feed Motor Timing Belt Tension Adjustment
    176
  - Cut Length Adjustment
    177
    
    MM (for 420 to 1189 MM)
    177
  - Roll Feed Paper Skew Adjustment
    178
Table of Contents

181
- 1 Overall Machine Information
  
  191
  - Specifications
    191
  - Paper Path
    193
  - Mechanical Component
    194
  - Drive Layout
    196
  - Electrical Component Descriptions
    197
- 2 Detailed Section Descriptions
  
  201
  - Drum
    201
    
    Drum Drive
    201
  - Exposure
    202
    
    Paper and Original Feed (A252 Only)
    202
  - Development
    204
    
    Toner Density Control
    204
  - Fusing and Paper Exit
    205
    
    Overview (A252 Copier)
    205
- 3 Installation
  
  207
  - Installation Requirements
    209
    
    Environment
    209
    
    Machine Level
    210
    
    Minimum Space Requirements
    210
    
    Power Source
    211
    
    Copier
    212
    
    Table (A)
    220
    
    Copy Tray (A836-10)
    222
- 4 Service Tables
  
  233
  - Service Tools
    235
    
    Service Program Mode
    235
    
    Input/Output Check Mode
    243
    
    Output Check Mode Table
    244
  - Jam Code List
    245
    
    Jam Code Table
    245
  - Service Remarks
    249
    
    Ac Drive Board
    249
- 5 Replacement and Adjustment
  
  251
  - Optics
    253
    
    Original Feed Unit Removal (A252 Only)
    253
    
    Exposure Glass Removal (A252 Only)
    254
    
    Fiber Optics Array Removal (A252 Only)
    254
    
    Exposure Lamp Removal
    255
    
    Light Sensor Replacement (A252 Only)
    256
    
    Synchro-Cut Length Adjustment (A252 Only)
    257
  - Drum Unit
    258
    
    Drum Unit Removal
    258
  - Fusing
    259
    
    Fusing Unit Removal
    259
  - T & S Corona Unit
    261
    
    Transfer and Separation Corona Wire Replacement
    261
  - Copy Quality Adjustment
    263
    
    Registration Adjustment
    263
- 6 Troubleshooting
  
  265
  - Service Call Conditiion
    267
    
    Sc Code E-14: Zero Cross Signal Detection Abnormal
    267
    
    Sc Code E-15: Main Switch Abnormal (U.s.a. Version Only)
    267
  - Blown Fuse Table
    268
    
    Power Supply Unit
    268
Detailed Section Descriptions/Detailed Section Descriptions

273
Troubleshooting

277
- Specifications
  288
- Paper Path
  289
- Mechanical Components
  290
- Electrical Components
  292
- Detailed Section Descriptions
  
  295
- 2 Detailed Section Descriptions
  
  297
  - Exposure
    297
    
    Original Positioning
    297
    
    Paper and Original Feed (B048 Only)
    297
    
    Scanning
    298
    
    Start Key Enable
    299
    
    Toner Density Control
    300
    
    Recovery from Toner End Condition
    301
    
    Used Toner Collection
    302
  - Fusing and Paper Exit
    303
    
    Overview
    303
    
    Hot Roller Temperature Control
    304
    
    Temperature Control
    304
  - Energy Star Compliant Machines (All the Destination)
    305
- 3 Installation
  
  307
  - Installation Requirements
    309
    
    Environment
    309
    
    Machine Level
    310
    
    Minimum Space Requirements
    310
    
    Power Source
    311
  - Installation Procedure
    313
    
    B047 Copier Only (Step 22 and 23)
    320
    
    B048 Copier Only (Step 21)
    320
    
    Service Program Mode
    339
  - Service Call Conditions
    377
    
    Sc Code Descriptions
    377
    
    Roll Edition Detection
    389
  - Cutter Unit Replacement
    391
  - Roll Feed Unit Removal
    393
  - Roll Feed Clutch Replacement
    394
  - Roll Feed Motor Replacement
    395
  - Roll End Sensor Replacement
    396
    
    Cut Length Adjustment
    397
  - Side Registration Adjustment
    398

Ricoh B048 Service Manual (96 pages)

Brand: Ricoh | Category: Copier | Size: 1.68 MB

Table of Contents
5
1 Overall Machine Information

11
- Specifications
  11
- With "*" in
  11
- Paper Path
  13
- Mechanical Components
  14
- Electrical Components
  16
2 Detailed Section Descriptions

18
- Exposure
  18
  - Paper and Original Feed (B048 Only)
    18
    
    Original Positioning
    18
    
    Scanning
    19
    
    Start Key Enable
    20
  - Toner Density Control
    21
    
    Recovery from Toner End Condition
    22
  - Development Bias
    58

Ricoh B048 Service Manual (25 pages)

Brand: Ricoh | Category: Copier | Size: 0.25 MB

Table of Contents

3
- Specifications
  11
  - Troubleshooting
    12
- Mechanical Component
  13
- Paper Path
  15
  - Minimum Space Requirements
    16
    
    Charge
    17
- Exposure
  18
  - Transfer and Separation
    19
  - Drive Mechanism
    20
- Roll Cutting Rail
  23
Table of Contents

25

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Mechanical Component Layout

Drive Layout

Electrical Component Descriptions

Installation

Environment

Service Tables

Preventive Maintenance Schedule

Service Tables

Service Tools

Jam Code List

Special Tools and Lubricants

Service Remarks

Replacement and Adjustment

Exterior Covers

Optics

Others

Copy Quality Adjustment

Troubleshooting

Copy Quality Troubleshooting

Service Call Condition

Blown Fuse Table

Roll Feeder

Specifications

Mechanical Component and Drive Layout

Electrical Component Descriptions

Mechanical Operation

Service Tables

Installation Procedure

Replacement and Adjustment

Table of Contents

1 Overall Machine Information

2 Detailed Section Descriptions

3 Installation

4 Service Tables

5 Replacement and Adjustment

6 Troubleshooting

Detailed Section Descriptions/Detailed Section Descriptions

Troubleshooting

Detailed Section Descriptions

2 Detailed Section Descriptions

3 Installation

Ricoh B048 Service Manual (96 pages)

Table of Contents

1 Overall Machine Information

2 Detailed Section Descriptions

Ricoh B048 Service Manual (25 pages)

Table of Contents