Ricoh SAVIN A741 Manuals

Ricoh SAVIN A741 Service Manual (608 pages)

Wide Format Copier

Brand: Ricoh | Category: Copier | Size: 5 MB

Table of Contents

19
- Safety Precautions
  13
- Installation Precautions
  15
- Specifications 1
  16
- Troubleshooting
  20
  - Specifications
    25
  - Handling Precautions
    29
  - Handling and Storage of the Drum 1
    31
- Handling of the Heaters
  31
- Storage of Developer and Toner
  31
- Storage of Paper
  31
Mechanical Construction

33
- Part Names and Functions 1
  35
- Copy Process 1
  37
- Machine Cross Sectional View 1
  37
- Machine Drive System 1
  38
- Drum Drive Gear
  57
- Idle Gear
  57
- Electrical Parts Layout
  105
- Detection of Paper Misfeed
  
  119
  - Paper Misfeed Detection
    121
  - Paper Misfeed Detection Conditions
    122
  - Timing Chart No. 1
    123
  - Timing Chart No. 2
    123
  - Timing Chart No. 3
    123
  - Timing Chart No. 4
    123
  - Timing Chart No. 5
    124
  - Operation of the Pcbs
    129
  - Power Source Pcb
    131
  - Lph Power Supply Pcb
    137
    
    Servo Motor Control 1 Pcb
    140
    
    Servo Motor Control 2 Pcb
    143
    
    Main Pcb
    146
  - Backup Pcb
    155
    
    Image Processing
    157
    
    Isu Pcb
    158
    
    Operation Unit Pcb
    161
    
    Inverter Pcb
    162
  - Unpacking and Installing the Copier
    167
  - Installing the Key Counter (Optional)
    194
  - Simulation Function
    211
- Assembly and Disassembly
  
  277
  - Cautions During Disassembly and Assembly
    279
  - Paper Feed Section
    281
  - Main Charger Section
    300
  - Exposure and Original Feed Section
    311
  - Developing Section
    343
  - Transfer/Separation Section
    349
  - Cleaning Section
    354
  - Fur Brush Gear
    358
  - Fixing Section
    360
  - Other Sections
    372
- Pcb Initial Settings
  
  379
  - Non-Field-Adjustable Volume Controls
    383
  - Self Diagnostics
    385
Troubleshooting

399
- Image Formation Problems
  403
  - No Image (Entirely White)
    403
  - No Image (Entirely Black)
    403
  - Image Is too Light
    403
  - Background Is Visible
    403
  - A White Line Appears Longitudinally
    403
  - A Black Line Appears Longitudinally
    403
  - A Black Line Appears Laterally
    403
  - One Side of the Copy Image Is Darker than the Other
    403
  - Black Dots Appear on the Image
    403
  - Image Is Blurred
    404
  - The Leading Edge of the Image Is Consistently Misaligned with the Original
    404
  - The Leading Edge of the Image Is Sporadically Misaligned with the Original
    404
  - Paper Creases
    404
  - Offset Occurs
    404
  - Image Is Partly Missing
    404
  - Fixing Is Poor
    404
  - Image Is out of Focus
    404
  - The Center of the Image Is Misaligned with the Original
    404
  - One Forth the A0 Width of the Image Is White
    417
  - One Forth the A0 Width of the Image Is Black
    418
- Paper Misfeeds
  419
  - Appears as Soon as the Main Switch Is Turned on
    419
    
    Copying Frequently
    420
    
    Copying Frequently
    421
    
    PCB Terminal Voltages
    425
    
    Power Source PCB
    425
    
    LPH Power Source PCB
    427
    
    Main PCB
    428
    
    Servo Motor Control 1 PCB
    433
    
    Servo Motor Control 2 PCB
    434
    
    Output PCB
    435
  - Operation Unit PCB
    437
  - Inverter PCB
    438
  - Isu Pcb
    439
- Electrical Problems
  440
  - Turned on
    440
  - The Drum Motor Does Not Operate
    441
- The Cutter Clutch Does Not Operate
  445
- The Cleaning Solenoid Does Not Operate
  446
- Fixing Heater M or S Does Not Turn on (C-630, C-631, C-640, C-641, C-650, C-660)
  448
- Fixing Heater M or S Fails to Turn off (C-630, C-641, C-650, C-660)
  448
- No Main Charging
  449
- No Transfer Charging
  449
- The Job Stop/Roll Cut Key Does Not Operate
  450
- The Dehumidifier Does Not Operate
  451
- The Lower Roller Unit Heater Does Not Operate
  452
- Mechanical Problems
  453
- No Primary Paper Feed
  453
Table of Contents

457
- Preventive Maintenance
  458
  - Preventive Maintenance Schedule
    459
  - Operation Unit PCB
    474
  - Power Source PCB 1/2
    475
  - Power Source PCB 2/2
    475
  - Detachable Unit Wiring Diagram
    477
Table of Contents

481
- Itheory and Construction Section
  
  483
  - Specifications
    485
  - Handling Precautions
    491
    
    Part Names
    495
    
    Mechanical Construction of each Section
    496
- Electrical Section
  
  497
  - Electrical Parts Layout
    499
  - Operation of the PCB
    507
    
    Memory Unit Main PCB
    509
- Set up and Adjustment Section
  
  511
  - Installation
    513
3-1 Installation

515
- 1 ) Installation Environment
  517
- Unpacking and Installation
  517
- 2 ) Installation Procedure
  518
- Copy Mode Initial Settings
  525
- Installing the Hard Disk Drive (Option)
  526
- Installing/Removing Additional Memory (Option)
  528
- Simulation
  531
3-2 Simulation

533
- 1 ) Running a Simulation
  535
- Simulations
  535
- 2 ) Contents of Simulations
  536
  - Adjustment Simulations
    539
  - 1 ) Adjusting Base 4 Output Density
    539
- ( 2 ) Adjusting Thresholds (Central Exposure Level)
  540
- 3 ) Adjusting Base 4 Thresholds Simultaneously
  541
- 4 ) Adjusting Exp. 1.0 Threshold
  542
- 5 ) Adjusting Exp. 7.0 Threshold
  543
  - Dip Switch Settings
    544
  - 1 ) Contents of the Dip Switch Settings
    544
- PCB Initial Setting
  545
  - Main PCB
    549
- Self-Diagnostics
  551
  - Self-Diagnostic Function
    555
    
    1 ) Self-Diagnostic Display
    555
    
    2 ) Error Message
    557
    
    3 ) Conditions that Turn the Memory Unit Main PCB Leds on
    558
- Troubleshooting
  561
  - PCB Terminal Voltages
    563
- Appendixes
  567
  - Power Source PCB
    573
  - Wiring Diagram
    574

Ricoh SAVIN A741 Manuals

Ricoh SAVIN A741 Service Manual (608 pages)

Table of Contents

Table of Contents

Mechanical Construction

Detection of Paper Misfeed

Assembly and Disassembly

Pcb Initial Settings

Troubleshooting

Table of Contents

Table of Contents

Itheory and Construction Section

Electrical Section

Set up and Adjustment Section

3-1 Installation

3-2 Simulation

Ricoh SAVIN A741 Manual (76 pages)

Table of Contents

1 Specifications

2 Installation

3 Functional Block Diagram of A741 Repro System

4 Trouble-Shooting

5 Installing / Using Network Clients

6 Direct Printing from Autocad

7 A741 Repro Program

8 Frequently Asked Questions: General

9 Frequently Asked Questions: A741 Repro System Overview

10 Frequently Asked Questions: Printing/Plotting

11 Frequently Asked Questions: Image Viewing/Handling

12 Frequently Asked Questions: Network

13 Frequently Asked Questions: Scanning

14 Frequently Asked Questions: Project Management

15 Glossary

16 Description of Lbtest Program

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