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Manuals and User Guides for Canon 1140. We have
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Canon 1140 manual available for free PDF download: Service Manual
Canon 1140 Service Manual (965 pages)
COLOR LASER COPIER
Brand:
Canon
| Category:
Copier
| Size: 17.32 MB
Table of Contents
1
Service Information
11
Table of Contents
25
General Description
27
Chapter 1 GENERAL DESCRIPTION
27
Features
28
Specifications
28
Type
28
System
29
Functions
31
Others
32
Default Ratios
34
Copying Speed
35
CLC Paper Deck-E1
36
Names of Parts
36
External View
38
Cross Section
41
Using the Copier
41
Control Panel
42
Extended Functions
43
User Mode
45
Daily Maintenance By the User
46
Safety
46
Safety of Laser Light
47
CDRH Regulations
48
Handling the Laser Assembly
50
Safety of Toner
51
Image Formation
51
Outline
53
Auxiliary Process
54
Basic Operation
56
Chapter 2 Basic Operation
56
Outline of Operations
56
Functional Construction
57
Electrical Circuitry
57
Outline
57
Cpu Pcb
57
Control Panel
59
Basic Sequence of Operations
59
At Power-On
61
Basic Sequence of Operations (Copying)
62
Generating the Image Leading Edge Signal
63
Controlling Side a and Side B
65
Controlling Electrical Mechanisms
65
Controlling the Main Motor (M4)
65
Outline
67
Controlling the Drum Motor (M2)
67
Outline
69
Inputs to and Outputs From the Major Pcbs
104
Chapter 3 Exposure System
104
Operation
104
Outline
105
Basic Sequence of Operations
105
Sequence of Operations
106
Scanner Home Position Sensor and Operation
107
Scanner Drive System
107
Controlling the Scanner Motor
107
Outline
108
Operations
108
Changing the Reproduction Ratio
109
Controlling the Intensity of the Scanning Lamp
109
Outline
110
Operations
110
Turning On/Off the Scanning Lamp
110
Detecting the Activation of the Scanning Lamp
111
Disassembly/Assembly
111
IV. Disassembly/Assembly
112
Original Exposure System
113
Removing the Standard White Plate
114
Scanner Drive Assembly
122
Chapter 4 Image Processing System
122
Outline
123
CCD/CCD Drive
123
Controlling the CCD
123
CCD Driver Circuit
124
Analog Image Processing
125
Digital Image Processing
125
Outline
127
Shading Correction
128
3-Line CCD Position Matching Circuit
128
Sensor Color Correction Circuit
129
Original Position Detection Circuit
130
Black Detection Circuit and Edge/Line Width Detection Circuit
131
Chromatic Space Correction Circuit
131
Direct Mapping Circuit
132
Logarithmic Correction and Bgr-To-Ymc Conversion
132
Logarithmic Correction
132
Bgr-To-Ymc Conversion4-11
133
Toner Color Correction Circuit
133
Coloring/Contour Processing
134
Density Processing
134
Enlargement/Reduction, Shift, and Edit Processing
135
Sharpness/Filter Processing
135
Anti-Counterfeit Mechanism
135
Counterfeit Tracing Mechanism
135
Bank Note Detection Mechanism
136
Cmybk/Rgb Integration
136
Texture Processing
136
Color Conversion
137
Disassembly/Assembly
138
Electrical Parts
142
Laser Exposure System
144
Chapter 5 Laser Exposure System
144
Operations
144
Functions
145
Sequence of Operations (Laser Exposure System)
146
Generating the Bd Signal
147
Laser Driver Circuit
147
Controlling the Laser System
148
Controlling the Temperature of the Laser Unit
149
Laser Scanner Motor
150
Disassembly/Assembly
158
Controlling the Primary Charging Mechanism and
160
Chapter 6 Image Formation System
160
Image Formation System
160
Outline
162
Controlling the C Sensor
166
Sequence of Operations (Image Formation System)
167
Image Stabilization
167
Outline
169
Controlling the Surface Potential of the Drum
169
Outline
170
Potential of the Drum
170
Measuring the Dark Area Potential Attenuation
170
Controlling the Environment
170
Contrast Potential
171
Setting the Grid Bias and the Developing Bias
175
Potential Control Timing)
176
Controlling the Charging Mechanism
177
Controlling the Developing Bias
177
Operation
178
When Controlling the M Developing Bias
179
Controlling the Attraction Charging Mechanism and Transfer Charging Current
179
Operations
180
Controlling the Separation Charging Current
180
Operation
182
Controlling the External/Internal Static Eliminating Current
182
Operation
183
Controlling the Post-Cleaning Charging Current
183
Operations
184
Controlling the Temperature of the Photosensitive Drum
184
Control
184
Controlling the Power Using the Environment Switch SW6
186
Controlling the Primary Charging Wire Cleaning Mechanism
186
Operations
186
Conditions for Operation
187
Developing Assemblies
187
Outline
187
IV. Developing Assemblies
188
Locking the Developing Assembly
190
Controlling the Concentration of Color Toner
190
Outline
191
Measuring the Concentration of Color Toner On the Developing Cylinder Assembly
192
Toner Concentration
192
Drum
192
Of the Photosensitive Drum
193
Sequence of Measurement
194
Controlling the Concentration of Black Toner
194
Outline
194
Controlling the Supply of Black Toner
195
Measuring the Concentration of Black Toner (Patch Detection)
197
Detecting Dirt On the Window
198
Sequence of Operations (Measurement)
199
Error Code (E020) Related to Control of Toner Concentration
206
New Gradation Correction Control (Patch Detection; CLC1140/ 1160/1180)
206
Outline
206
New Gradation Correction Control (Patch Detection)
208
Timing of Measurement
209
Error Code Related to New Gradation Correction Control (E020)
212
Supplying Toner
213
Photosensitive Drum Cleaner Assembly
213
Outline
214
Controlling the Reciprocating Mechanism of the Cleaning Blade
214
Controlling the Collection of Waste Toner
214
Checking the Waste Toner Case (Full)
215
Detecting a Waste Toner Feedscrew Lock Condition
216
Disassembly/Assembly
217
Photosensitive Drum Assembly
217
Construction
217
Removing the Photosensitive Drum
222
When Replacing the Photosensitive Drum
223
Cleaning the Photosensitive Drum
224
Removing the Drum Heater
225
Removing the Drum Heater Brush
225
Pre-Exposure Lamp
225
Removing the Pre-Exposure Lamp Unit
226
Charging Assembly
226
Outline
226
Removing the Primary Charging Assembly
226
Removing the Grid Plate
226
Assembly
228
Removing the Post-Cleaning
228
Charging Assembly
228
Adjusting the Height of the Charging Wire
229
Developing Assemblies
229
Construction of the Y/M/C Developing Assembly
229
Construction of the Bk Developing Assembly
229
Removing the Developing Assembly
230
Removing the ATR Sensor of the Y/M/C Developing Assembly
231
Removing the Developing Cylinder
235
Adjusting the S-B Gap
235
Replacing the Developer
240
Hoppe Assembly
240
Opening the Hopper
240
Removing the Hopper Unit
241
Removing the Hopper Motor
242
Removing the Toner Supply Clutch
244
Photosensitive Drum Cleaner Assembly
244
Removing the Photosensitive Drum Cleaner Unit
248
Replacing the
248
Sheet
248
Removing the
249
Assembly No. 2 Scoop-Up
249
Sheet Assembly
249
Replacing the No. 2 Scoop-Up Sheet Assembly
249
Points to Note When Handling the Pre-Cleaning Sensor Assembly
249
Pre-Cleaning Sensor Assembly No. 2 Scoop-Up Sheet Assembly
250
Black Toner Concentration Sensor Assembly
250
Removing the Black Toner Concentration Sensor
252
Removing the No. 2 Blade
253
Removing the Gradation Sensor (CLC1140/1160/ 1180 Only)
254
Cleaner Blade Reciprocating Motor
254
6-82A
254
Removing the Reciprocating Motor
254
Assembly
254
Waste Toner Feeding Assembly
254
Removing the Waste Toner
257
Developing Drive Assembly
257
Removing the Developing Drive Assembly and the Developing Assembly Rail
257
Developing Drive
259
Assembly
264
Outline
268
Chapter 7 PICK-UP / FEEDING SYSTEM
268
Pickup Assembly
268
Pickup From the Cassette
268
Outline
272
Lifter Movement
272
Outline
273
Detecting the Presence/Absence of Paper
273
Detecting the Level of Paper
274
Detecting the Paper Size Inside the Cassette
274
Fixed-Size Type Cassette
274
Universal Type Cassette
275
Paper Sizes and Cassettes
276
Paper Width Basic Value
277
Sequence of Operations (Pickup From the Cassette)
278
Pickup From the Multifeeder
278
Operations
279
Detecting the Size of Paper
280
Movement of the Lifter
281
Sequence of Operations
282
Picking Up Transparencies
284
Duplexing Unit (Clc1150/1180 Only)
284
Outline
284
Basic Construction
286
Arrangement of Rollers and Sensors
287
Stacking Paper
288
Movement of the Paper Jogging Guide Plate
288
Operations
290
Sequence of Operations (1St Side of a Double-Sided Copy)
291
Re-Pickup From the Duplexing Unit
291
Operations
292
Sequence of Operations
293
Controlling the Registration/Attraction Mechanism
293
Outline
294
Locking and Unlocking the Registration Roller
295
Controlling the Attraction Mechanism
296
Sequence of Operations (Registration/Attraction)
297
Transfer Drum
297
Outline
299
Controlling the Locking Cam Inside the Transfer Drum
302
Controlling Separation
302
Outline
303
Separating Paper
304
Cleaning the Separation Drum Sheet
304
Outline
305
External Brush
305
Polishing Roller
307
Sequence of Operations (Transfer Drum)
308
Detecting Jams
308
Outline
310
Sequence of Operations (Jam Detection)
311
Disassembly/Assembly (Pick-Up Assembly)
312
Pickup Assembly
312
Construction
312
Removing the Cassette Pickup Assembly/Duplexing Pickup Assembly
314
Removing the Pickup Roller
314
Removing the Cassette Pickup Assembly Feed Roller/Separation Roller
314
Pickup Assembly
316
Adjusting the Pressure of the Separation Roller
318
Position of the Cassette Pickup Assembly and Pickup Roller Solenoid (SL7, SL8, SL9)
318
Registration of the
319
Removing the Duplexing Unit Feed Roller
319
Removing the Duplex Unit Separation Roller
320
Removing the Duplexing Unit Pickup Roller
323
Multifeeder
323
Removing the Multifeeder Assembly
323
Removing the Pickup Roller, Feed Roller, and Separation Roller
326
Left/Right Registration
326
Position of the Multifeeder
327
Duplexing Unit
327
Removing the Duplexing
327
Removing the Feed Roller
328
Remove the Duplexing
331
Adjusting the Left/Right
331
Registration of the
332
Adjusting the Position of the
332
Jogging Guide Plate
333
Position of the Stopper Plate Solenoid
333
Position of the Duplexing Paper Feed Roller Solenoid
334
Position of the Stacking Guide Solenoid
335
Pickup Motor Drive Assembly
335
Removing the Cassette
335
Pickup Drive Assembly/Re
335
Pickup Drive Assembly
335
Removing the Duplexing Motor
336
Disassembly/Assembly
336
Disassembly/Assembly (Transfer Assembly/Delivery Assembly)
337
Removing the Transfer Drum Assembly/Transfer Drum Frame
337
Removing the Transfer Drum
338
Points to Note When Handling the Transfer Drum
339
Removing the Transfer Drum Frame
340
No. 1 Feeding Assembly
340
Construction
340
Removing the Horizontal Path Assembly
341
Removing the Attraction Roller Unit
343
Removing the Scraper of the Attraction Roller
343
Removing the Attraction Roller
343
Replacing the Attraction Roller Unit Spring Clutch Assembly
344
Removing the Registration Roller
348
Replacing the Registration Roller Releasing Spring Clutch Assembly
349
Transfer Cleaner Unit
349
Removing the Transfer Cleaner Unit
349
Removing the Transfer Cleaner Brush
349
Removing the Scraper
350
Removing the Transfer
350
Drum Cleaner Assembly
350
Filter
350
Applying Lubricant to the Transfer Drum Cleaner
351
Transfer Drum Assembly
351
Construction
352
Removing the Transfer Drum Sheet
353
Attaching the Transfer Drum Sheet
358
Removing the Attraction Brush
358
Remove the Transfer Blade
358
Removing the External Static Eliminator
359
Removing the Internal Static Eliminator
359
Removing the Separation Changing Assembly
359
Removing the Polishing Roller
360
Removing the Polishing Roller Unit
362
Removing the Separation Push-Up Solenoid
363
Remove the Brush
364
Removing the Transfer Cleaner Push-On Brush Unit
365
Removing the Separation Push-Up Roll
365
Transfer Drum Locking Motor Assembly (PM5)
365
Transfer Drum Cleaner Locking
365
Motor Assembly (PM6)
366
Transfer Drum Cleaner Locking Motor Assembly (PM6)
366
Removing the Transfer Drum Cleaner Locking Motor Assembly
366
Delivery Assembly
366
Removing the Delivery Assembly
367
Duplexing Delivery Assembly (CLC1150/1180 Only)
368
Fixing System
370
Chapter 8 Fixing System
370
Operations
370
Outline
372
Sequence of Operations (Fixing System)
373
Fixing Drive System
373
Controlling the Speed of the Fixing Roller
375
Taking Up the Fixing Cleaning Belt
376
Fixing Oil Applying Mechanism
378
Controlling the Fixing Temperature
378
Controlling the Temperature of the Fixing Roller
380
Protective Functions
382
Disassembly/Assembly
383
Fixing Assembly
383
Removing the Fixing Assembly
383
Opening the Fixing Upper Roller Unit
384
Removing the Fixing Upper Heater
384
Removing the Fixing Upper Roller
385
Removing the Fixing Lower Heater
386
Removing the Fixing Lower Roller
387
Difference Among Fixing Rollers (Upper/Lower, Front/Rear)
389
Removing the Fixing Thermal Switch (Lower)
389
Adjusting the Fixing Nip
390
Fixing Cleaner Assembly
390
Removing the Fixing Upper Cleaning Belt
391
Mounting the Fixing Upper Cleaning Belt
392
Removing the Fixing Lower Cleaning Belt
393
Mounting the Fixing
394
Oil Applying Assembly/Removing Assembly
394
Removing the Oil Applying Felt
395
Removing the Oil Fixing Blade
395
Internal Delivery Assembly
395
Removing the Fixing Separation Claw
396
Drive Assembly
396
Removing the Fixing Motor (M5)
396
Points to Note When Replacing the Oil Pump
396
Adjusting the Fixing Upper/Lower Solenoid
400
Chapter 9 Externals / Auxiliary Mechanisms
400
Control Panel
400
Outline
401
Downloading
401
Outline
405
Registering Firmware
408
Making Connections
411
Downloading the Firmware
413
Uploading Backup Data
415
Downloading Backup Data
417
Work at the End of a Job
418
Counters
418
Outline
419
Fans
419
Outline
421
Operations
421
Speed Rotation Control
421
Sequence of Operations
422
Power Supply
422
Supplying Power
422
Outline
423
Distribution of Power Among Switches
425
Rated Outputs of the DC Power Supply PCB
426
Protection System
428
Backup Battery
429
Editor
429
Outline
429
Operations
431
Zero-Adjustment of Input Coordinates
432
Disassembly/Assembly
433
Right Upper Cover
433
Covers
433
External Covers
434
Left Inside Cover
434
Transfer Drum Frame
434
Fixing Assembly Cover
435
Transfer Drum Frame Right Cover
435
Removing the Copyboard Glass
436
Removing the Upper Cover
437
Control Panel
437
Removing the Control Panel
437
Removing the Control Panel PCB
437
Removing the LCD PCB
438
Removing the Numeric Keypad PCB
439
Editor
439
Removing the Editor Controller PCB
440
Removing the Editor Mirror
441
Flywheel
441
Removing the Flywheel
441
Points to Note When Handling the Flywheel
442
Outline
443
Drive System Belt Layout
443
Drum Motor Assembly
443
Removing the Drum Motor (M2)
445
Mounting the Drum
447
Main Motor (M4) Drive Assembly
447
Assembly
447
Removing the Main Motor (M4)
448
Cpu Pcb
448
Removing the CPU PCB
448
Replacing the CPU PCB
448
Replacing the Flash Memory On the CPU
450
Pcb
450
Hvt Pcb
450
Removing the HVT PCB
450
Developing Bias PCB
450
Removing the Developing Bias PCB
452
Chapter 10 Paper Deck
452
Paper Deck
452
Inputs to and Outputs
452
From the Deck Driver
457
Pickup
457
Outline
457
Pickup Operations
459
Sequence of Operations
460
Detecting Paper in the Deck
460
Detecting the Presence/Absence of Paper
461
Switching the Deck Paper Size
461
Detecting the Level of Paper in the Deck
462
Deck Lifter
462
Lifter Movement
464
Paper Level Indicator On the Deck
465
Opening/Closing the Deck
465
Deck Opening/Closing Movement
466
Sequence of Operations
467
Controlling the Deck Motors
467
Controlling the Deck Pickup Motor (PM101)
468
Controlling the Deck Lifter Motor (M101)
470
Detecting Jams
470
Outline
472
Disassembly/Assembly
473
External Covers
473
Removing the
475
Removing the Rear
475
Removing the Right Cover
475
Removing the Upper Cover
476
Paper Deck - Related Work
476
Removing the Deck From the Copier
478
Removing the Compartment
479
Changing the Deck Paper Size
480
Adjusting the Deck Registration
480
Adjusting the Position of the Roll
481
Drive System
481
Removing the Deck Pickup Clutch (CL102)
481
Motor Assembly
482
Removing the Deck Lifter
483
Removing the Lifter Cable
486
Routing the Lifter Cable
487
Feeding System
487
Removing the Deck Pickup Unit
487
Removing the Deck Pickup Roller
488
Orientation of the Deck Pickup Roller
489
Removing the Deck Separation Roller
490
Separation Roller
491
Position of the Deck Pickup
491
Solenoid (SL101)
491
Electrical System
491
Removing the Deck Driver PCB
492
Removing the Deck Open Switch PCB
494
Chapter 11 INSTALLATION
494
Selecting the Site
494
Installation
494
Removing the Fixing Materials
494
And Mounting the Waste Toner
494
Collection Case
494
Mounting the Drum Cleaner
499
A. Unpacking
504
C. Supplying Fixing Oil
511
Switch
512
Supplying Toner
516
Supplying the Starter
516
Developer
520
Checking the Images and Operations
522
Changing the Cassette
522
Paper Size
525
Relocating the Copier
530
Setting the Board
533
Removing From the Copier
533
Checking Operations
534
Installing the Remote Diagnostic Device
534
Installing to the Copier
543
Installing the Cassette Heater
548
Chapter 12 Maintenance and Servicing
548
Periodically Replaced Parts
548
Consumables and Durables
548
Scheduled Servicing
548
Chart
551
Copier
553
Paper Deck
558
Scheduled Servicing List
558
Copier
560
Chapter 12 Maintenance and Servicing
561
Paper Deck
562
Chapter 13 Troubleshooting
579
Exposure System
580
Image Formation System
587
Pickup/Feeding System
597
Fixing System
600
Externals/Controls
601
Paper Deck
605
Electrical System
620
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
621
Checking the Paper
621
Checking Periodically Replaced Parts
621
Others
622
Standard Images
625
Test Print
625
Selecting a Test Print Pattern
626
Horizontal Stripe Test Print (PG>TYPE=10, 16)
627
Color Test Print (PG>TYPE=2)
628
Gradation Test Print (PG>TYPE=3)
629
Gradation Test Print (PG>TYPE=4)
630
Halftone Test Print (PG>TYPE=5)
632
Grid Test Print (PG>TYPE=6)
633
Ymcbk 64-Gradation Test Print (PG>TYPE=12)
634
BGR 64-Gradation Test Print (PG>TYPE=13)
635
Full-Color 16-Gradation (Ymcbk) Test Pint (PG>TYPE=14)
636
Full-Color Light Area/16-Gradation (Ymcbk) Test Print (PG>TYPE=15)
637
Full Color Block Pattern
639
Troubleshooting Image Problems
656
The Copy Has a Fixing Fault
658
The Copy Is Blank
659
The Copy Is Solid Black
669
Cpu Pcb
672
Pcb
677
Pcb
701
DC Fuse PCB
713
Ac Power Is Absent
714
DC Power Is Absent
717
The Scanning Lamp Fails to Turn On
724
The Registration Roller Fails to Rotate
728
The Fixing Heater Fails to Turn On
730
The Drum Heater Fails to Operate
743
Double Feeding
743
B. Feeding Faults
744
A. Sensors
753
E. Fans
758
H. Paper Deck
758
Sensors and Switches
760
Check Pins By Pcb
764
AC Fuse PCB
764
Developing Bias PCB
765
Hvt-Ac Pcb
765
Potential Measurement PCB
766
Service Mode
766
Outline
766
VII. Service Mode
767
Starting Service Mode and Making Selections
802
C. I/O (I/O Display Mode)
894
F. Option (Settings Mode)
910
G. Pg (Test Print)
918
VIII. Self Diagnosis
941
B. Rdf
942
C. Sorter
965
Recycled Paper
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