Gestetner A224 Manuals

Manuals and User Guides for Gestetner A224. We have 1 Gestetner A224 manual available for free PDF download: Service Manual

Gestetner A224 Service Manual (820 pages)

Brand: Gestetner | Category: All in One Printer | Size: 8.55 MB

Table of Contents

13
- A193 Overall Machine Information
  13
- A193 Service Tables
  16
  - Document Feeder a
    19
  - Paper Tray Unit G
    20
  - Finisher a
    23
Table of Contents

24
- Overall Machine Information a
  27
- Rom Modification History
  31
- 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
- 2 Machine Configuration
  
  51
- 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
  - Entering Energy Saver Mode
    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
  - 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
  - Transfer Roller Unit
    167
  - Fusing Unit
    167
- Service Program Mode
  
  169
  - Service Program Mode Tables
    171
  - Rev. 6/13/97
    175
    
    Test Pattern Printing (Sp)
    199
    
    Copy Jam History Display (Sp)
    205
  - 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
- Exterior
  
  216
  - 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
  - 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 Modification 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
  - Df Cover Removal
    301
  - Df Feed Cover Open , Df Position, and Aps Start 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
- Specifications
  
  313
- Component Layout
  
  314
  - Mechanical Component Layout
    314
  - Electrical Component Layout
    315
  - Electrical Component Description
    316
  - Drive Layout
    317
- Detailed Description
  
  318
  - Paper Feed and Tray Lift/Lower Mechanism
    318
  - Timing Chart
    319
  - Paper Feed and Relay Clutch Replacement
    323
  - Paper Feed Motor Replacement
    324
  - Lift 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
- Basic Operation
  
  338
  - Duplex Junction Gate Mechanism
    344
  - Paper Transport and Feed Mechanism
    345
    
    Timing Charts
    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
  - Electrical Component Layout
    357
  - Preventive Maintenance
    388
  - 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
- 4 Preventive Maintenance
  
  424
  - Service Tables
    424
  - Led Table
    424
  - Dip Switch Table
    424
- 5 Service Tables
  
  424
- 6 Replacement and Adjustment
  
  426
  - 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
  - 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
    
    Memory Back-Up
    548
    
    Power Distribution and Control
    548
  - Video Data Path
    549
  - Immediate Transmission
    550
  - Automatic Service Calls
    555
    
    Effective Term of Service Calls
    557
    
    Periodic Service Call
    557
    
    Pm Call
    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
    
    Image Rotation before Printing
    567
    
    Paper Size Selection
    567
    
    Width Priority and Length Priority
    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
  - Isdn G4 Unit
    593
    
    Hard Disk
    596
  - IC Cards
    599
    
    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
  - 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
  - Dedicated Transmission Parameters
    752
    
    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
  - Error Messages
    815
  - Hardware Errors
    816
  - Connection Errors
    816
  - Image Problems
    817
  - Printer Controller (A643) Rom Modification History
    819

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Copier

All in One Printer

Printer Printer Accessories Fax Machine

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Gestetner A224 Manuals

Gestetner A224 Service Manual (820 pages)

Table of Contents

Table of Contents

Table of Contents

A193/A224 Tab Index

Specifications

Machine Configuration

Paper Path

Mechanical Component Layout

Electrical Component Descriptions

2 Machine Configuration

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 Program Mode

User Program Mode

Switches/Leds

Preventive Maintenance Schedule

Exterior

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

Rom Modification History

Document Feeder A628

Specifications

Component Layout

Detailed Descriptions

Replacement and Adjustment

Paper Tray Unit G697

Specifications

Component Layout

Detailed Description

Basic Operation

Dip Switches

Replacement and Adjustment

Installation Procedure

4 Preventive Maintenance

5 Service Tables

6 Replacement and Adjustment

A224 Copier

Service Program Mode Table

Special Tools and Lubricants

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