Canon NP6412 Manuals

Manuals and User Guides for Canon NP6412. We have 1 Canon NP6412 manual available for free PDF download: Service Manual

Canon NP6412 Service Manual

Canon NP6412 Service Manual (599 pages)

Brand: Canon | Category: Printer Accessories | Size: 9.46 MB

Table of Contents

Table of Contents
7
Chapter 1 General Description

13
- Features
  13
- Specifications
  14
- Copier
  14
- Adf
  18
- Names of Parts
  20
- External View
  20
- Cross Section
  23
- Using the Machine
  25
- Control Panel
  25
- User Mode
  27
- Routine Maintenance by the User
  28
- Image Formation
  31
- Outline
  31
Chapter 2 Basic Operation

35
- Basic Operations
  35
- Functional Construction
  35
Chapter 3 Exposure System

35
- Outline of Electrical Circuitry
  36
- Basic Sequence of Operations
  37
- Controlling the Main Motor (M1)
  39
- Inputs to and Outputs from the DC Controller
  41
- Operations
  49
- Outline
  49
- Varying the Reproduction Ratio
  50
- Lens Drive System
  51
- Scanner Drive System
  52
- Outline
  52
- Controlling the Scanning Lamp
  57
- Exposure System
  57
- Lamp
  58
- Disassembly/Assembly
  61
- Scanner Drive Assembly
  62
- Lens Drive Assembly
  80
- Exposure System
  86
Chapter 4 Image Formation System

91
- Image Formation System
  91
- Outline
  93
- Timing Chart for the Image Formation System
  95
- Primary Charging Roller Bias Control
  96
- Controlling the Transfer Roller Bias
  101
- Controlling the Developing/Separation Static Eliminator Bias
  104
- Measuring the Density of Originals
  110
- Controlling the Pre-Exposure Lamp
  116
- Controlling the Side Blanking Mechanism
  118
- Outline
  119
- Developing Assembly/Cleaning Assembly
  119
- Outline
  120
- Detecting the Level of Toner
  120
- Detecting Waste Toner
  122
- Primary Charging Roller Cleaning Control
  123
- Disassembly/Assembly
  125
- Drum Unit
  126
- Transfer Charging Assembly
  130
- Blank Exposure
  131
- Developing Assembly
  135
- Pickup/Feeding System
  145
- Outline
  145
- Controlling the Pickup Roller
  146
- Controlling the Movement of Paper
  150
- Detecting Jams
  152
- Disassembly/Assembly
  157
- Pickup Assembly
  158
- Multifeeder Assembly
  165
- Feeding Assembly
  168
- Registration Roller Assembly
  169
- Assembly
  169
- Delivery Assembly
  174
- Disassembly/Assembly
  187
- Fixing Assembly
  188
Chapter 7 Externals/Auxiliary Mechanisms

195
- Fans
  195
- Power Supply System
  197
- Outline of the Power Supply System
  197
- Power Supply Circuit
  198
- Detecting an Error on the Composite Power Supply PCB
  200
- Protecting the Power Supply Circuit
  200
- Disassembly/Assembly
  201
- External Covers
  202
- Control Panel
  209
- Copyboard Glass
  210
- Bly
  213
- Electrical System
  215
- Adf
  221
- Outline
  223
- Adf
  223
- B Basic Construction
  224
- Basic Operations
  226
- Detecting an Original
  228
- Pickup Operation
  230
- Delivery
  234
- Controlling the Pickup Motor
  236
Chapter 8 Adf

236
- Controlling the Belt Motor
  237
- Detecting Original Jams
  238
- Power Supply
  239
- Disassembly/Assembly
  240
- Removing the ADF
  241
- External Covers
  243
- Drive System
  245
- Feeding System
  248
- Electrical System
  255
- Placing Copy Paper
  276
- Moving the Machine
  279
- Scheduled Servicing
  283
Chapter 11 Troubleshooting

287
- Maintenance and Inspection
  289
- Image Adjustment Basic Procedure
  289
- Points to Note for Servicing
  290
- Standards and Adjustments
  291
- Mechanical
  291
- Adf
  316
- Electrical
  327
- Troubleshooting Image Faults
  338
- Making Initial Checks
  338
- Sample Image Faults
  342
- Troubleshooting Image Faults
  343
- Troubleshooting Malfunctions
  351
- Troubleshooting
  351
- Malfunctions
  351
- Malfunctions
  355
- Troubleshooting Feeding Problems
  363
- Copy Paper Jam
  363
- Faulty Feeding
  366
- Switches
  368
- Lamp, Heater, Motor, Etc
  369
- Pcbs
  370
- Adf
  371
- Outline
  374
- Using Service Mode
  374
- Adjustment Mode (30)
  374
- Operation/Inspection Mode (40)
  374
- Machine Settings Mode (50)
  374
- Counter Mode (60)
  374
- Counter Mode (60)
  379
- Self Diagnosis
  380
Appendix

383
- General Timing Chart
  385
- Signals and Abbreviations
  387
- DC Controller Circuit Diagram
  391
- Adf Controller Circuit Diagram
  399
- Composite Power Supply Circuit Diagram
  403
- Control Panel Circuit Diagram
  413
- Ae Sensor Circuit Diagram
  415
- Sensor Circuit Diagram
  416
- Diagram
  416
- Noise Filter Circuit Diagram
  417
- High Voltage Contact Circuit Diagram
  418
- BLANK EXPOSURE (Front) CIRCUIT DIAGRAM
  419
- BLANK EXPOSURE (Rear) CIRCUIT DIAGRAM
  420
- Pre-Exposure Circuit Diagram
  421
- Special Tools
  422
- Solvents/Oils
  423
- Chapter 1 Maintenance and Inspection
  433
- Periodically Replaced Parts
  433
- Durables and Consumables
  433
- Scheduled Servicing
  433
- Chapter 2 Standards and Adjustments
  437
- Mechanical
  437
- Adf
  462
- Chapter 3 Arrangement and Functions of
  485
- Sensors and Solenoids
  485
- Switches
  486
- Lamp, Heater, Motor, Etc
  487
- Pcbs
  488
- Outline
  493
- Using Service Mode
  493
- Chapter 4 Service Mode
  493
- Operation/Inspection Mode (40)
  497
- Machine Settings Mode (50)
  498
- Counter Mode (60)
  498
Chapter 5 Self Diagnosis

499
Appendix

509
- Special Tools
  509
- Solvents/Oils
  510
- Specifications
  511

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