Ricoh Aficio 250 Manuals

Manuals and User Guides for Ricoh Aficio 250. We have 3 Ricoh Aficio 250 manuals available for free PDF download: Service Manual, Reference Manual

Ricoh Aficio 250 Service Manual (1024 pages)

Brand: Ricoh | Category: All in One Printer | Size: 15.75 MB

Table of Contents

13
- Service Manual
  1
- A193 Overall Machine Information
  13
  - Paper Tray Unit G
    20
  - Finisher a
    23
Detailed Section Deacription

26
- Overall Machine Information a
  27
- Important Safety Notices
  36
- Laser Safety
  37
A193/A224 Tab Index

38
- Specifications
  
  44
  - Specifications
    45
- Machine Configuration
  
  47
- Paper Path
  
  48
  - Mechanical Component Layout
    49
- Mechanical Component Layout
  
  50
  - Electrical Component Descriptions
    51
  - Electrical Component Descriptions
    52
- Drive Layout
  
  55
- Copy Process
  
  56
  - Overview
    56
- Board Structure
  
  58
  - Overview
    58
  - Description
    59
- Scanning
  
  62
  - Overview
    62
  - Scanner Drive
    63
  - Original Size Detection in Platen Mode
    64
- Image Processing
  
  66
  - Overview
    66
  - Sbu (Sensor Board Unit)
    67
  - Auto Image Density (Ads)
    68
  - Ipu (Image Processing Unit)
    69
    
    Overview
    69
    
    Image Processing Path
    70
    
    Auto Shading
    71
    
    Filtering and Main Scan Magnification/Reduction
    72
    
    Gamma (Γ) Correction
    74
    
    Gradation Processing
    74
    
    Line Width Correction
    76
  - Msu (Memory Super-Charger Unit)
    77
  - Fci (Fine Character and Image)
    78
- Laser Exposure
  
  79
  - Overview
    79
  - Optical Path
    80
  - Gradation Control (Laser Power Modulation)
    81
  - Auto Power Control (Apc)
    82
  - Ld Safety Switches
    83
- Pcu (Photoconductor Unit)
  
  84
  - Overview
    84
  - Drive Mechanism
    85
  - New Pcu Detection Mechanism
    86
  - Drum Charge
    87
    
    Overview
    87
    
    Charge Roller Contact Mechanism
    88
    
    Drum Charge Roller Cleaning
    89
    
    Temperature Compensation
    90
  - Development
    91
    
    Overview
    91
    
    Drive Mechanism
    92
    
    Mixing
    93
    
    Development Bias
    94
    
    Toner Density Control
    95
    
    Toner Supply in Abnormal Sensor Conditions
    98
    
    Toner Supply
    99
  - Drum Cleaning and Toner Recycling
    103
    
    Drum Cleaning
    103
    
    Toner Recycling
    104
- Paper Feed
  
  105
  - Overview
    105
  - Paper Tray
    106
    
    Paper Feed Drive Mechanism
    106
    
    Paper Lift Mechanism
    107
    
    Paper End Detection
    108
    
    Side Fence Double Stopper Mechanism
    109
    
    Paper Size Detection
    110
    
    By-Pass Feed
    111
    
    Overview
    111
    
    Paper Feed Mechanism and Paper End Detection
    112
    
    By-Pass Feed Paper Width Detection
    113
    
    Paper Registration
    114
- Image Transfer and Paper Separation
  
  115
  - Overview
    115
  - Image Transfer and Paper Separation Mechanism
    116
  - Roller Cleaning
    117
  - Paper Separation and Transportation
    118
- Image Fusing
  
  119
  - Overview
    119
  - Fusing Drive and Release Mechanism
    120
  - Fusing Entrance Guide Shift Mechanism
    121
  - Pressure Roller
    122
  - Cleaning Mechanism
    122
  - Fusing Temperature Control
    123
  - Overheat Protection
    123
- Energy Saver Modes
  
  124
  - Overview
    124
  - Copier Only
    125
  - Copier/Printer
    127
  - Copier/Fax, Copier/Printer/Fax
    129
  - Power Consumption
    131
  - Energy Saver Control
    132
  - Block Diagram
    133
  - Energy Saver Timing Charts
    134
- Paper Exit
  
  136
- Installation Requirements
  
  140
  - Environment
    140
  - Machine Level
    140
  - Minimum Space Requirements
    141
  - Power Requirements
    141
- Copier Installation
  
  142
  - Accessory Check
    142
  - Copier Installation Procedure
    143
  - Auto Document Feeder Installation
    147
  - Paper Tray Unit Installation
    149
  - Duplex Unit Installation
    152
  - 1-Bin Sorter Installation
    155
  - Memory Board
    157
  - Key Counter Holder Installation
    158
  - Anti-Condensation Heater Installation
    160
  - Tray Heater
    161
  - Tray Heater (Optional Paper Tray Unit)
    162
- Service Remarks
  
  166
  - General Caution
    166
  - Pcu
    166
  - Transfer Roller Unit
    167
  - Scanner Unit
    167
  - Laser Unit
    167
  - Fusing Unit
    167
  - Paper Feed
    168
  - Others
    168
- Service Program Mode
  
  169
  - Service Program Mode Operation
    169
    
    Accessing Copy Mode from Within an SP Mode
    169
    
    Service Program Access Procedure
    169
    
    How to Select the Program Number
    170
    
    To Input a Value or Setting for an SP Mode
    170
  - Service Program Mode Tables
    171
    
    Main SP Mode Table
    171
    
    Rev. 6/13/97
    175
    
    Test Pattern Printing (SP 5-902)
    199
    
    Input Check (SP5-803)
    200
    
    Output Check (SP5-804)
    203
    
    Copy Jam History Display (SP7-903)
    205
    
    Original Jam History Display (SP7-905)
    206
    
    System Parameter and Data Lists (SP5-992)
    206
    
    Memory All Clear (SP5-801)
    207
    
    Program Download
    208
- User Program Mode
  
  209
  - How to Enter and Exit up Mode
    209
- Switches/Leds
  
  211
  - Switches
    211
  - Leds
    211
  - Test Pin
    211
  - Special Tools and Lubricants
    211
  - Special Tools
    211
- Preventive Maintenance Schedule
  
  212
  - Pm Table
    212
  - Front Cover/Inner Cover
    216
  - Rear Cover
    217
  - Left/Right Cover
    217
  - Exposure Glass/Operation Panel/Upper Cover
    218
- Photoconductor Unit (Pcu)
  
  219
  - Pcu
    219
  - Drum Charge Roller Unit
    221
  - Drum
    222
  - Cleaning Blade
    223
- Transfer Unit
  
  224
  - Transfer Roller/Separation Unit
    224
- Scanner Unit
  
  225
  - Lens Cover
    225
  - Scanner Frame
    226
  - Original Size Sensor
    227
  - Lens Block/Sbu Assembly
    227
  - Xenon Lamp
    228
  - Scanner H. P. Sensor/Platen Cover Sensor
    229
  - Scanner Motor
    230
  - Scanner Wire
    231
- Laser Unit
  
  233
  - Caution Decals
    233
  - Laser Unit/Main Scan Synchronization Detector
    234
  - Polygon Mirror Motor
    235
  - Ld Unit
    236
  - Laser Unit Positioning Adjustment
    237
- Fusing/Exit
  
  238
  - Hot Roller Strippers
    238
  - Fusing Thermistor/Thermofuse
    238
  - Hot Roller/Fusing Lamp
    239
  - Pressure Roller/Cleaning Roller
    240
- Exit
  
  241
  - Exit Unit
    241
  - Upper Exit Sensor/Lower Exit Sensor
    242
- Paper Feed/ Registration
  
  243
  - By-Pass Feed Tray
    243
  - By-Pass Feed Paper End Sensor/Registration Sensor
    244
  - Paper Feed Roller/Friction Pad
    245
  - By-Pass Feed Paper Width Sensor
    245
  - Paper Feed Rollers/Paper Size Detector
    246
    
    Paper Feed Rollers
    246
    
    Paper Size Detector
    246
  - Paper End Sensors
    247
  - Paper Feed Clutches/Relay Clutches
    248
  - Relay Sensor/Right Vertical Guide Switch
    249
- Others
  
  250
  - Iocss Board
    250
  - Msu Board/Bicu Board
    251
  - Psu Board
    252
- Standard White Density Adjustment
  
  253
- Copy Adjustment Printing/Scanning
  
  254
  - Printing
    254
    
    Registration - Leading Edge/Side-To-Side
    254
    
    Blank Margin
    255
    
    Main Scan Magnification
    255
    
    Double Copy Registration
    256
  - Scanning
    256
    
    Registration: Platen Mode
    256
    
    Magnification
    257
  - Adf Image Adjustment
    258
    
    Registration and Blank Margin
    258
    
    Sub Scan Magnification
    258
- Image Density Adjustment by Key Operator
  
  259
- Service Call Conditions
  
  262
- Sc Code Descriptions
  
  263
- Electrical Component Defects
  
  272
  - Sensors
    272
  - Switches
    274
- Blown Fuse Conditions
  
  274
  - Rom History
    275
- Document Feeder A628
  
  281
- Specifications
  
  283
- Component Layout
  
  284
  - Mechanical Component Layout
    284
  - Electrical Component Layout
    285
  - Electrical Component Description
    286
  - Drive Layout
    287
- Detailed Descriptions
  
  288
  - Original Size Detection
    288
  - Pick-Off and Separation Mechanism
    290
  - Original Transport and Exit Mechanism
    291
  - Stamp
    292
  - Timing Charts
    293
    
    A4 Lengthwise
    293
    
    A4 Sideways (Stamper Mode)
    294
  - Overall Electrical Circuit
    295
- Replacement and Adjustment
  
  296
  - Original Feed Unit Removal
    296
  - Separation Roller Replacement
    297
  - Pick-Up Roller Replacement
    298
  - Feed Belt Replacement
    299
  - Original Set Sensor and Width Sensor Replacement
    300
    
    Replacement
    300
    
    Sensor Replacement
    302
  - Original Length Sensor Replacement
    303
  - Df Feed Clutch and Df Pick-Up Solenoid Replacement
    304
  - Registration Sensor Replacement
    305
  - Stamper Solenoid Replacement
    306
  - Sp Modes
    307
- Paper Tray Unit G697
  
  311
  - Detailed Description
    318
    
    Paper Feed and Tray Lift/Lower Mechanism
    318
    
    Timing Chart
    319
    
    Exterior Cover Removal
    321
    
    Paper Feed and Relay Clutch Replacement
    323
    
    Lift Motor Replacement
    324
    
    Paper Feed Motor Replacement
    324
    
    Paper End and Upper Limit Sensor Replacement
    325
    
    Upper Relay Sensor Replacement
    326
    
    Lower Relay Sensor Replacement
    327
    
    Paper Size Sensors
    328
    
    Tray Cover Switch Replacement
    329
- Specifications
  
  333
- Component Layout
  
  334
  - Mechanical Component Layout
    334
  - Electrical Component Layout
    335
  - Electrical Component Description
    336
  - Drive Layout
    337
- Basic Operation
  
  338
- Detailed Description
  
  344
  - Duplex Junction Gate Mechanism
    344
  - Paper Transport and Feed Mechanism
    345
    
    Timing Chart
    346
    
    Overall Electrical Circuit
    348
- Dip Switches
  
  349
  - Duplex Control Board : Dsw
    349
  - Duplex Transport Unit Removal
    350
- Replacement and Adjustment
  
  351
  - Duplex Transport and Feed Motor Replacement
    351
  - Duplex Turn and Duplex Exit Sensors
    351
    
    Entrance Sensor Replacement
    352
    
    Electrical Component Layout
    357
  - Overall Machine Information
    367
    
    Jam Detection
    383
    
    Preventive Maintenance
    388
    
    Original Exit Sensor Replacement
    399
    
    Junction Gate Mechanism
    408
    
    Paper Reversing Mechanism
    409
    
    Jogger Unit Paper Positioning Mechanism
    410
    
    Feed out Mechanism
    412
    
    Shift Tray Side-To-Side Mechanism
    414
    
    Face-Up Mode (A4: 2 Sheets)
    415
    
    Face-Down Mode (A4: 2 Sheets)
    416
    
    Staple Mode (A4: 2 Sheets)
    417
- Installation Procedure
  
  420
  - Service Tables
    424
    
    Dip Switch Table
    424
    
    Led Table
    424
    
    Exterior Removal
    426
    
    Alignment Brush Roller Replacement
    427
    
    Belt Tension Adjustment
    428
    
    Stack Height Sensor Replacement
    429
    
    Exit Sensor Replacement
    430
    
    Inverter Sensor Replacement
    431
  - A224 Copier
    433
- Service Program Mode Table
  
  454
  - Laser Unit
    491
    
    Polygon Motor Driver
    494
    
    Paper Lift Mechanism
    521
    
    Paper Feed Mechanism
    522
  - Paper Feed Timing and Jam Detection
    525
    
    Accessory Check
    526
  - Paper Size Change
    530
  - Test Point Table
    531
  - Fuse Table
    531
  - Paper Feed Roller Removal
    533
  - Tray Lift Motor Removal
    534
  - Paper Feed Motor and Trnsport Motor
    535
  - Paper Size Sensor
    535
  - Lower Limit Sensor
    536
    
    Features List
    542
    
    Capabilities of Programmable Items
    545
    
    Possible Combinations of Optional IC Cards
    546
    
    Overall Machine Control
    547
    
    System Control
    547
    
    Memory Back-Up
    548
    
    Power Distribution and Control
    548
- Video Data Path
  
  549
  - Immediate Transmission
    550
- Automatic Service Calls
  
  555
  - Periodic Service Call
    557
  - Pm Call
    557
  - Effective Term of Service Calls
    557
- Parallel Memory Transmission
  
  558
- Transfer Broadcasting
  
  560
- Original Scan Process
  
  563
  - Main Scan Direction
    563
  - Sub Scan Direction
    563
- Image Rotation before Transmission
  
  565
  - Paper Size Selection
    567
  - Width Priority and Length Priority
    567
  - Image Rotation before Printing
    567
  - Sub Scan Reduction and Page Separation
    568
  - Page Reduction
    571
  - Two in One
    572
  - Ncu (Us)
    582
  - Ncu (Europe/Asia)
    583
  - Ncu (France)
    584
  - Fax Unit
    587
  - Initial Programming
    591
- Isdn G4 Unit
  
  593
  - Hard Disk
    596
- IC Cards
  
  599
  - Service Level Functions
    605
    
    System Parameter Lists (Function)
    606
    
    Error Code Display (Function)
    609
    
    G3 Protocol Dump List (Function)
    609
    
    G4 Protocol Dump List (Function)
    609
    
    Rom Version Display (Function)
    609
    
    Service Monitor Report (Function)
    609
    
    Ncu Parameters (Function)
    610
    
    Ram Display and Rewrite (Function)
    610
    
    Ram Clear (Function)
    611
    
    Ram Dump (Function)
    611
    
    Hard Disk (Function)
    612
    
    Service Station Fax Number (Function)
    612
    
    Dtmf Test (Function)
    613
    
    Modem Test (Function)
    613
    
    Serial Number (Function)
    613
    
    Modem Signal Detection Test (Function)
    614
    
    Ringer Test (Function)
    614
  - Stamp Test
    614
    
    File Printout (Function)
    615
    
    G4 Parameter Programming (Function)
    615
    
    Tcr/Journal Printout (Function)
    615
    
    Usage Log Printout (Function)
    616
    
    Software Download (Function)
    617
    
    Software Upload (Function)
    619
    
    Sram Data Download (Function)
    620
  - Bit Switches
    622
  - System Switches
    622
  - Scanner Switches
    634
  - Printer Switches
    639
  - Communication Switches
    644
  - G3 Switches
    651
  - Ncu Parameters
    658
  - Dedicated Transmission Parameters
    667
  - Programming Procedure
    667
- Service Ram Addresses
  
  671
- Special Tools and Lubricants
  
  681
  - Error Codes
    693
- Fax Sc Codes
  
  699
  - Fax Sc Code Table
    700
  - Double-Sided Original Transmission
    709
    
    Portrait Original - Side Binding
    710
    
    Portrait Original - Top Binding
    711
    
    Landscape Original - Side Binding
    712
    
    Landscape Original - Top Binding
    713
    
    Service Tables and Procedure
    727
    
    Troubleshooting
    729
  - User Level Programming
    734
  - Service Level Programming
    735
  - Switch Settings
    736
    
    Internal Switches
    736
    
    Parameter Switches
    737
    
    G4 Internal Switches
    739
    
    G4 Parameter Switches
    747
    
    D-Channel Layer Management
    755
    
    D-Channel Link Layer
    755
    
    B-Channel Link Layer
    756
    
    D-Channel Network Layer
    756
    
    B-Channel Network Layer
    757
    
    Transport Layer
    757
    
    Document Layer
    758
    
    Session Layer
    758
    
    Presentation Layer
    759
  - G4Ccu Status Codes
    760
    
    Layer 1 (Physical Layer)
    760
    
    Layer 2 (Link Layer)
    760
    
    Network Layer (Layer)
    761
    
    Transport Layer (Layer)
    761
  - Controller Specifications
    791
  - Block Diagram (Overall)
    792
    
    Localtalk Interface
    795
    
    Machine Interface
    796
    
    Printer Controller
    797
  - Block Diagram (Internal)
    797
    
    Printer Enhancement Unit
    805
  - Simm Module
    807
  - Connecting the Interface Cable
    808
  - Checking the Connections
    809
  - Service Tables and Procedures
    813
  - Error Messages
    815
  - Hardware Errors
    816
  - Connection Errors
    816
  - Image Problems
    817
    
    Additional Information
    904
    
    Material Safety Data Sheets
    932
Table of Contents

968

Ricoh Aficio 250 Reference Manual (243 pages)

Brand: Ricoh | Category: Fax Machine | Size: 2.51 MB

Table of Contents
14
Auto Power-On Reception
20
Transmission with Image Rotation
32
Original Type
49
Image Density (Contrast)
49
Number Keys
55
Quick Dial
55
Speed Dial
62
Groups
65
Optional Group Dial (Function Upgrade Card Required)
65
Substitute Reception
73
Fax Mode (Auto Reception Mode)
76
Telephone Mode
76
Transfer Station
77
Reception Time
80
Multi-Copy Reception (Memory Card or Hard Disk Option Required)
81
2-Sided Printing (Optional Duplex Tray and Memory Card or Harddisk Required)
81
Image Rotation
82
Two in One
82
Page Separation and Length Reduction (Not Available in some Countries)
83
Reverse Order Printing
83
Page Reduction
84
TSI Print
84
CIL/TID Print (ISDN Unit Required)
84
When There Is no Paper of the Correct Size
85

Ricoh Aficio 250 Service Manual (29 pages)

Brand: Ricoh | Category: All in One Printer | Size: 0.99 MB

Service Manual
1
Table of Contents
9
Electrical Component Description
10
Specifications
11
Detailed Description
12
Timing Chart
13
Mechanical Component Layout
14
Replacement and Adjustment
15
Description
16
- Switches
  18
- Rom Modification History
  19
  - Service Remarks
    24
  - By-Pass Feed
    26
- Paper Feed
  27

Ricoh Categories

All in One Printer

Printer

Digital Camera Copier Printer Accessories

More Ricoh Manuals

Ricoh Aficio 250 Manuals

Ricoh Aficio 250 Service Manual (1024 pages)

Table of Contents

Table of Contents

Detailed Section Deacription

A193/A224 Tab Index

Specifications

Machine Configuration

Paper Path

Mechanical Component Layout

Drive Layout

Copy Process

Board Structure

Scanning

Image Processing

Laser Exposure

Pcu (Photoconductor Unit)

Paper Feed

Image Transfer and Paper Separation

Image Fusing

Energy Saver Modes

Paper Exit

Installation Requirements

Copier Installation

Service Remarks

Service Program Mode

User Program Mode

Switches/Leds

Preventive Maintenance Schedule

Photoconductor Unit (Pcu)

Transfer Unit

Scanner Unit

Laser Unit

Fusing/Exit

Exit

Paper Feed/ Registration

Others

Standard White Density Adjustment

Copy Adjustment Printing/Scanning

Image Density Adjustment by Key Operator

Service Call Conditions

Sc Code Descriptions

Electrical Component Defects

Blown Fuse Conditions

Document Feeder A628

Specifications

Component Layout

Detailed Descriptions

Replacement and Adjustment

Paper Tray Unit G697

Specifications

Component Layout

Basic Operation

Detailed Description

Dip Switches

Replacement and Adjustment

Installation Procedure

Service Program Mode Table

Video Data Path

Automatic Service Calls

Parallel Memory Transmission

Transfer Broadcasting

Original Scan Process

Image Rotation before Transmission

Isdn G4 Unit

IC Cards

Service Ram Addresses

Special Tools and Lubricants

Fax Sc Codes

Table of Contents

Ricoh Aficio 250 Reference Manual (243 pages)

Table of Contents

Ricoh Aficio 250 Service Manual (29 pages)

Table of Contents

Related Products

Ricoh Categories