Canon 1140 Manuals

Manuals and User Guides for Canon 1140. We have 1 Canon 1140 manual available for free PDF download: Service Manual

Canon 1140 Service Manual

Canon 1140 Service Manual (965 pages)

COLOR LASER COPIER

Brand: Canon | Category: Copier | Size: 17.32 MB

Table of Contents

Service Information
1
Table of Contents
11
General Description
25
Features
27
Chapter 1 General Description

28
- Specifications
  28
- System
  28
- Type
  28
- Functions
  29
- Others
  31
- Default Ratios
  32
- Copying Speed
  34
- CLC Paper Deck-E1
  35
- Names of Parts
  36
  - External View
    36
  - Cross Section
    38
- Using the Copier
  41
  - Control Panel
    41
  - Extended Functions
    42
  - User Mode
    43
  - Daily Maintenance by the User
    45
  - Safety
    46
  - Safety of Laser Light
    46
  - CDRH Regulations
    47
  - Handling the Laser Assembly
    48
  - Safety of Toner
    50
  - Image Formation
    51
  - Outline
    51
  - Auxiliary Process
    53
  - Basic Operation
    54
Chapter 2 Basic Operation

56
- Outline of Operations
  56
  - Functional Construction
    56
  - Electrical Circuitry
    57
    
    Control Panel
    57
    
    Cpu Pcb
    57
    
    Outline
    57
- Basic Sequence of Operations
  59
- Controlling Electrical Mechanisms
  65
  - Controlling the Main Motor (M4)
    65
    
    Outline
    65
  - Controlling the Drum Motor (M2)
    67
    
    Outline
    67
  - Inputs to and Outputs from the Major Pcbs
    69
Chapter 3 Exposure System

104
- Operation
  104
  - Outline
    104
  - Basic Sequence of Operations
    105
    
    Sequence of Operations
    105
    
    Scanner Home Position Sensor and Operation
    106
- Scanner Drive System
  107
  - Controlling the Scanner Motor
    107
    
    Outline
    107
    
    Operations
    108
  - Changing the Reproduction Ratio
    108
- Controlling the Intensity of the Scanning Lamp
  109
  - Outline
    109
  - Operations
    110
    
    Detecting the Activation of the Scanning Lamp
    110
    
    Turning On/Off the Scanning Lamp
    110
    
    Disassembly/Assembly
    111
- IV. Disassembly/Assembly
  111
  - Original Exposure System
    112
  - Removing the Standard White Plate
    113
  - Scanner Drive Assembly
    114
Chapter 4 Image Processing System

122
- Outline
  122
- CCD/CCD Drive
  123
  - Controlling the CCD
    123
  - CCD Driver Circuit
    123
- Analog Image Processing
  124
- Digital Image Processing
  125
  - Outline
    125
  - Shading Correction
    127
  - 3-Line CCD Position Matching Circuit
    128
  - Sensor Color Correction Circuit
    128
  - Original Position Detection Circuit
    129
  - Black Detection Circuit and Edge/Line Width Detection Circuit
    130
  - Chromatic Space Correction Circuit
    131
  - Direct Mapping Circuit
    131
  - Logarithmic Correction and BGR-To-YMC Conversion
    132
    
    BGR-To-YMC Conversion4-11
    132
    
    Logarithmic Correction
    132
  - Toner Color Correction Circuit
    133
  - Coloring/Contour Processing
    133
  - Density Processing
    134
  - Enlargement/Reduction, Shift, and Edit Processing
    134
  - Sharpness/Filter Processing
    135
  - Anti-Counterfeit Mechanism
    135
    
    Bank Note Detection Mechanism
    135
    
    Counterfeit Tracing Mechanism
    135
  - Cmybk/Rgb Integration
    136
  - Texture Processing
    136
  - Color Conversion
    136
- Disassembly/Assembly
  137
  - Electrical Parts
    138
  - Laser Exposure System
    142
Chapter 5 Laser Exposure System

144
- Operations
  144
  - Functions
    144
  - Sequence of Operations (Laser Exposure System)
    145
- Generating the Bd Signal
  146
- Laser Driver Circuit
  147
  - Controlling the Laser System
    147
  - Controlling the Temperature of the Laser Unit
    148
- Laser Scanner Motor
  149
  - Disassembly/Assembly
    150
- Controlling the Primary Charging Mechanism and
  158
Chapter 6 Image Formation System

160
- Image Formation System
  160
  - Outline
    160
  - Controlling the C Sensor
    162
  - Sequence of Operations (Image Formation System)
    166
- Image Stabilization
  167
  - Outline
    167
  - Controlling the Surface Potential of the Drum
    169
    
    Outline
    169
    
    Contrast Potential
    170
    
    Controlling the Environment
    170
    
    Measuring the Dark Area Potential Attenuation
    170
    
    Potential of the Drum
    170
    
    Setting the Grid Bias and the Developing Bias
    171
    
    Potential Control Timing)
    175
    
    Controlling the Charging Mechanism
    176
- Controlling the Developing Bias
  177
  - Operation
    177
  - When Controlling the M Developing Bias
    178
- Controlling the Attraction Charging Mechanism and Transfer Charging Current
  179
  - Operations
    179
- Controlling the Separation Charging Current
  180
  - Operation
    180
- Controlling the External/Internal Static Eliminating Current
  182
  - Operation
    182
- Controlling the Post-Cleaning Charging Current
  183
  - Operations
    183
- Controlling the Temperature of the Photosensitive Drum
  184
  - Control
    184
  - Controlling the Power Using the Environment Switch SW6
    184
- Controlling the Primary Charging Wire Cleaning Mechanism
  186
  - Operations
    186
  - Conditions for Operation
    186
- Developing Assemblies
  187
- IV. Developing Assemblies
  187
- Outline
  187
- Locking the Developing Assembly
  188
- Controlling the Concentration of Color Toner
  190
  - Outline
    190
  - Measuring the Concentration of Color Toner on the Developing Cylinder Assembly
    191
    
    Drum
    192
    
    Of the Photosensitive Drum
    192
    
    Toner Concentration
    192
  - Sequence of Measurement
    193
- Controlling the Concentration of Black Toner
  194
- Photosensitive Drum Cleaner Assembly
  213
- Disassembly/Assembly
  216
  - Photosensitive Drum Assembly
    217
    
    Construction
    217
    
    Removing the Photosensitive Drum
    217
    
    When Replacing the Photosensitive Drum
    222
    
    Cleaning the Photosensitive Drum
    223
    
    Removing the Drum Heater
    224
    
    Removing the Drum Heater Brush
    225
  - Pre-Exposure Lamp
    225
    
    Removing the Pre-Exposure Lamp Unit
    225
  - Charging Assembly
    226
    
    Assembly
    226
    
    Outline
    226
    
    Removing the Grid Plate
    226
    
    Removing the Primary Charging Assembly
    226
  - Removing the Post-Cleaning
    228
    
    Charging Assembly
    228
  - Adjusting the Height of the Charging Wire
    228
- Developing Assemblies
  229
- Hoppe Assembly
  240
  - Opening the Hopper
    240
  - Removing the Hopper Unit
    240
  - Removing the Hopper Motor
    241
  - Removing the Toner Supply Clutch
    242
  - Photosensitive Drum Cleaner Assembly
    244
- Removing the Photosensitive Drum Cleaner Unit
  244
  - Replacing the
    248
    
    Removing the
    248
    
    Sheet
    248
    
    Assembly No. 2 Scoop-Up
    249
    
    Points to Note When Handling the Pre-Cleaning Sensor Assembly
    249
    
    Pre-Cleaning Sensor Assembly No. 2 Scoop-Up Sheet Assembly
    249
    
    Replacing the No. 2 Scoop-Up Sheet Assembly
    249
    
    Sheet Assembly
    249
  - Black Toner Concentration Sensor Assembly
    250
    
    Removing the Black Toner Concentration Sensor
    250
    
    Removing the No. 2 Blade
    252
    
    Removing the Gradation Sensor (CLC1140/1160/ 1180 Only)
    253
  - Cleaner Blade Reciprocating Motor
    254
    
    6-82A
    254
    
    Assembly
    254
    
    Removing the Reciprocating Motor
    254
  - Waste Toner Feeding Assembly
    254
    
    Feedscrew Assembly
    254
    
    Removing the Waste Toner
    254
  - Developing Drive Assembly
    257
    
    Developing Drive
    257
    
    Removing the Developing Drive Assembly and the Developing Assembly Rail
    257
    
    Assembly
    259
    
    Outline
    264
Chapter 7 Pick-Up / Feeding System

268
- Pickup Assembly
  268
  - Pickup from the Cassette
    268
    
    Outline
    268
  - Lifter Movement
    272
    
    Outline
    272
    
    Detecting the Level of Paper
    273
    
    Detecting the Presence/Absence of Paper
    273
  - Detecting the Paper Size Inside the Cassette
    274
    
    Fixed-Size Type Cassette
    274
    
    Universal Type Cassette
    274
    
    Paper Sizes and Cassettes
    275
    
    Paper Width Basic Value
    276
    
    Sequence of Operations (Pickup from the Cassette)
    277
  - Pickup from the Multifeeder
    278
    
    Operations
    278
    
    Detecting the Size of Paper
    279
    
    Movement of the Lifter
    280
    
    Sequence of Operations
    281
  - Picking up Transparencies
    282
- Duplexing Unit (Clc1150/1180 Only)
  284
  - Outline
    284
    
    Basic Construction
    284
    
    Arrangement of Rollers and Sensors
    286
  - Stacking Paper
    287
  - Movement of the Paper Jogging Guide Plate
    288
    
    Operations
    288
  - Sequence of Operations (1St Side of a Double-Sided Copy)
    290
  - Re-Pickup from the Duplexing Unit
    291
    
    Operations
    291
    
    Sequence of Operations
    292
- Controlling the Registration/Attraction Mechanism
  293
- Transfer Drum
  297
  - Outline
    297
  - Controlling the Locking Cam Inside the Transfer Drum
    299
  - Controlling Separation
    302
    
    Outline
    302
    
    Separating Paper
    303
  - Cleaning the Separation Drum Sheet
    304
    
    Outline
    304
    
    External Brush
    305
    
    Polishing Roller
    305
  - Sequence of Operations (Transfer Drum)
    307
- Detecting Jams
  308
  - Outline
    308
  - Sequence of Operations (Jam Detection)
    310
- Disassembly/Assembly (Pick-Up Assembly)
  311
  - Pickup Assembly
    312
    
    Construction
    312
    
    Removing the Cassette Pickup Assembly/Duplexing Pickup Assembly
    312
    
    Pickup Assembly
    314
    
    Removing the Cassette Pickup Assembly Feed Roller/Separation Roller
    314
    
    Removing the Pickup Roller
    314
    
    Adjusting the Pressure of the Separation Roller
    316
    
    Position of the Cassette Pickup Assembly and Pickup Roller Solenoid (SL7, SL8, SL9)
    318
    
    Registration of the
    318
    
    Removing the Duplex Unit Separation Roller
    319
    
    Removing the Duplexing Unit Feed Roller
    319
    
    Removing the Duplexing Unit Pickup Roller
    320
  - Multifeeder
    323
    
    Removing the Multifeeder Assembly
    323
    
    Removing the Pickup Roller, Feed Roller, and Separation Roller
    323
    
    Left/Right Registration
    326
    
    Position of the Multifeeder
    326
  - Duplexing Unit
    327
    
    Removing the Duplexing
    327
    
    Removing the Feed Roller
    327
    
    Remove the Duplexing
    328
    
    Adjusting the Left/Right
    331
    
    Registration of the
    331
    
    Adjusting the Position of the
    332
    
    Jogging Guide Plate
    332
    
    Position of the Duplexing Paper Feed Roller Solenoid
    333
    
    Position of the Stopper Plate Solenoid
    333
    
    Position of the Stacking Guide Solenoid
    334
  - Pickup Motor Drive Assembly
    335
    
    Pickup Drive Assembly
    335
    
    Pickup Drive Assembly/Re
    335
    
    Removing the Cassette
    335
    
    Removing the Duplexing Motor
    335
- Disassembly/Assembly
  336
- Transfer Cleaner Unit
  349
  - Removing the Transfer Cleaner Unit
    349
  - Removing the Transfer Cleaner Brush
    349
  - Removing the Scraper
    349
  - Removing the Transfer
    350
    
    Drum Cleaner Assembly
    350
    
    Filter
    350
  - Applying Lubricant to the Transfer Drum Cleaner
    350
- Transfer Drum Assembly
  351
  - Construction
    351
  - Removing the Transfer Drum Sheet
    352
  - Attaching the Transfer Drum Sheet
    353
  - Removing the Attraction Brush
    358
  - Remove the Transfer Blade
    358
  - Removing the External Static Eliminator
    358
  - Removing the Internal Static Eliminator
    359
  - Removing the Separation Changing Assembly
    359
  - Removing the Polishing Roller
    359
  - Removing the Polishing Roller Unit
    360
  - Removing the Separation Push-Up Solenoid
    362
  - Remove the Brush
    363
  - Removing the Transfer Cleaner Push-On Brush Unit
    364
  - Removing the Separation Push-Up Roll
    365
  - Transfer Drum Locking Motor Assembly (PM5)
    365
  - Transfer Drum Cleaner Locking
    365
  - Motor Assembly (PM6)
    365
  - Transfer Drum Cleaner Locking Motor Assembly (PM6)
    366
    
    Removing the Transfer Drum Cleaner Locking Motor Assembly
    366
  - Delivery Assembly
    366
    
    Removing the Delivery Assembly
    366
    
    Duplexing Delivery Assembly (CLC1150/1180 Only)
    367
    
    Fixing System
    368
Chapter 8 Fixing System

370
- Operations
  370
  - Outline
    370
  - Sequence of Operations (Fixing System)
    372
- Fixing Drive System
  373
- Controlling the Fixing Temperature
  378
  - Controlling the Temperature of the Fixing Roller
    378
  - Protective Functions
    380
- Disassembly/Assembly
  382
- Fixing Cleaner Assembly
  390
- Oil Applying Assembly/Removing Assembly
  394
  - Removing the Oil Applying Felt
    394
  - Removing the Oil Fixing Blade
    395
- Internal Delivery Assembly
  395
  - Removing the Fixing Separation Claw
    395
- Drive Assembly
  396
Chapter 9 Externals / Auxiliary Mechanisms

400
- Control Panel
  400
  - Outline
    400
- Downloading
  401
  - Outline
    401
  - Registering Firmware
    405
  - Making Connections
    408
  - Downloading the Firmware
    411
  - Uploading Backup Data
    413
  - Downloading Backup Data
    415
  - Work at the End of a Job
    417
- Counters
  418
  - Outline
    418
- Fans
  419
  - Outline
    419
  - Operations
    421
    
    Sequence of Operations
    421
    
    Speed Rotation Control
    421
- Power Supply
  422
  - Supplying Power
    422
    
    Outline
    422
    
    Distribution of Power Among Switches
    423
    
    Rated Outputs of the DC Power Supply PCB
    425
    
    Protection System
    426
    
    Backup Battery
    428
- Editor
  429
  - Outline
    429
  - Operations
    429
  - Zero-Adjustment of Input Coordinates
    431
- Disassembly/Assembly
  432
  - Right Upper Cover
    433
  - Covers
    433
  - External Covers
    433
  - Left Inside Cover
    434
  - Transfer Drum Frame
    434
    
    Fixing Assembly Cover
    434
    
    Removing the Copyboard Glass
    435
    
    Transfer Drum Frame Right Cover
    435
  - Removing the Upper Cover
    436
- Control Panel
  437
  - Removing the Control Panel
    437
  - Removing the Control Panel PCB
    437
  - Removing the LCD PCB
    437
  - Removing the Numeric Keypad PCB
    438
- Editor
  439
  - Removing the Editor Controller PCB
    439
  - Removing the Editor Mirror
    440
- Flywheel
  441
  - Removing the Flywheel
    441
  - Points to Note When Handling the Flywheel
    441
  - Outline
    442
- Drive System Belt Layout
  443
- Drum Motor Assembly
  443
  - Removing the Drum Motor (M2)
    443
  - Mounting the Drum
    445
- Main Motor (M4) Drive Assembly
  447
  - Assembly
    447
  - Removing the Main Motor (M4)
    447
- Cpu Pcb
  448
  - Removing the CPU PCB
    448
  - Replacing the CPU PCB
    448
  - Replacing the Flash Memory on the CPU
    448
  - Pcb
    450
- Developing Bias PCB
  450
  - Removing the Developing Bias PCB
    450
- Hvt Pcb
  450
  - Removing the HVT PCB
    450
Chapter 10 Paper Deck

452
- Paper Deck
  452
  - Inputs to and Outputs
    452
    
    From the Deck Driver
    452
  - Pickup
    457
    
    Outline
    457
    
    Pickup Operations
    457
    
    Sequence of Operations
    459
  - Detecting Paper in the Deck
    460
    
    Detecting the Presence/Absence of Paper
    460
    
    Detecting the Level of Paper in the Deck
    461
    
    Switching the Deck Paper Size
    461
  - Deck Lifter
    462
    
    Lifter Movement
    462
    
    Paper Level Indicator on the Deck
    464
  - Opening/Closing the Deck
    465
    
    Deck Opening/Closing Movement
    465
    
    Sequence of Operations
    466
  - Controlling the Deck Motors
    467
    
    Controlling the Deck Pickup Motor (PM101)
    467
    
    Controlling the Deck Lifter Motor (M101)
    468
- Detecting Jams
  470
  - Outline
    470
- Disassembly/Assembly
  472
  - External Covers
    473
    
    Removing the
    473
    
    Removing the Rear
    475
    
    Removing the Right Cover
    475
    
    Removing the Upper Cover
    475
  - Paper Deck - Related Work
    476
  - Removing the Deck from the Copier
    476
  - Removing the Compartment
    478
  - Changing the Deck Paper Size
    479
  - Adjusting the Deck Registration
    480
  - Adjusting the Position of the Roll
    480
- Drive System
  481
  - Removing the Deck Pickup Clutch (CL102)
    481
    
    Motor Assembly
    481
  - Removing the Deck Lifter
    482
  - Removing the Lifter Cable
    483
  - Routing the Lifter Cable
    486
- Feeding System
  487
  - Removing the Deck Pickup Unit
    487
  - Removing the Deck Pickup Roller
    487
  - Orientation of the Deck Pickup Roller
    488
  - Removing the Deck Separation Roller
    489
    
    Separation Roller
    490
  - Position of the Deck Pickup
    491
    
    Solenoid (SL101)
    491
- Electrical System
  491
  - Removing the Deck Driver PCB
    491
  - Removing the Deck Open Switch PCB
    492
- Installation
  494
  - Removing the Fixing Materials
    494
    
    And Mounting the Waste Toner
    494
    
    Collection Case
    494
  - Mounting the Drum Cleaner
    494
    
    And Setting the Environment
    494
- Selecting the Site
  494
Chapter 11 Installation

499
- A. Unpacking
  499
- C. Supplying Fixing Oil
  504
  - Switch
    511
- Supplying Toner
  512
- Supplying the Starter
  516
  - Developer
    516
- Checking the Images and Operations
  520
- Changing the Cassette
  522
  - Paper Size
    522
- Relocating the Copier
  525
  - Setting the Board
    530
  - Removing from the Copier
    533
  - Checking Operations
    533
- Installing the Remote Diagnostic Device
  534
  - Installing to the Copier
    534
- Installing the Cassette Heater
  543
Chapter 12 Maintenance and Servicing

548
- Consumables and Durables
  548
- Periodically Replaced Parts
  548
- Scheduled Servicing
  548
  - Chart
    548
  - Copier
    551
  - Paper Deck
    553
- Scheduled Servicing List
  558
  - Copier
    558
  - Chapter 12 Maintenance and Servicing
    560
  - Paper Deck
    561
Chapter 13 Troubleshooting

562
- Exposure System
  579
- Image Formation System
  580
- Pickup/Feeding System
  587
- Fixing System
  597
- Externals/Controls
  600
- Paper Deck
  601
- Electrical System
  605
- Troubleshooting Faulty Images
  620
  - Making Initial Checks
    620
  - Environment of the Site
    620
  - Checking the Originals against Symptoms
    620
  - Checking the Copyboard Cover, Copyboard Glass, and Standard White Plate
    620
  - Checking the Charging Assemblies
    620
  - Checking the Developing Assembly
    620
  - Checking the Paper
    621
  - Checking Periodically Replaced Parts
    621
  - Others
    621
- Standard Images
  622
- Test Print
  625
- Troubleshooting Image Problems
  639
  - The Copy Has a Fixing Fault
    656
  - The Copy Is Blank
    658
  - The Copy Is Solid Black
    659
  - Cpu Pcb
    669
    
    Pcb
    672
    
    Pcb
    677
  - DC Fuse PCB
    701
    
    Ac Power Is Absent
    713
    
    DC Power Is Absent
    714
    
    The Scanning Lamp Fails to Turn on
    717
    
    The Registration Roller Fails to Rotate
    724
    
    The Fixing Heater Fails to Turn on
    728
    
    The Drum Heater Fails to Operate
    730
    
    B. Feeding Faults
    743
    
    Double Feeding
    743
    
    A. Sensors
    744
- E. Fans
  753
  - H. Paper Deck
    758
  - Sensors and Switches
    758
  - Check Pins by Pcb
    760
  - AC Fuse PCB
    764
  - Developing Bias PCB
    764
  - Hvt-Ac Pcb
    765
  - Potential Measurement PCB
    765
- Outline
  766
- Service Mode
  766
  - VII. Service Mode
    766
  - Starting Service Mode and Making Selections
    767
  - C. I/O (I/O Display Mode)
    802
  - F. Option (Settings Mode)
    894
  - G. Pg (Test Print)
    910
  - VIII. Self Diagnosis
    918
  - B. Rdf
    941
  - C. Sorter
    942
  - Recycled Paper
    965

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