Contents
5.3.4.1
Scanning Lamp ...................................................................................................................................................................... 5- 10
5.3.4.2
Overview ................................................................................................................................................................................ 5- 10
5.3.4.3
Activation Control................................................................................................................................................................... 5- 10
5.3.4.4
Error Detection....................................................................................................................................................................... 5- 10
5.3.5
Detecting the Size of Originals .............................................................................................................................. 5- 10
5.3.5.1
Overview ................................................................................................................................................................................ 5- 10
5.3.5.2
Points of Original Size Detection ........................................................................................................................................... 5- 11
5.3.5.3
Overview of Detection Operation ........................................................................................................................................... 5- 11
5.3.6
Dirt Sensor Control ................................................................................................................................................ 5- 13
5.3.6.1
Overview ................................................................................................................................................................................ 5- 13
5.3.7
Image Processing.................................................................................................................................................. 5- 15
5.3.7.1
Overview ................................................................................................................................................................................ 5- 15
5.3.7.2
Driving the CCD ..................................................................................................................................................................... 5- 15
5.3.7.3
Gain Correction and Offset Correction for the CCD Output................................................................................................... 5- 16
5.3.7.4
A/D Conversion of the CCD Output ....................................................................................................................................... 5- 16
5.3.7.5
Shading Correction (outline) .................................................................................................................................................. 5- 16
5.3.7.6
Shading Adjustment............................................................................................................................................................... 5- 16
5.3.7.7
Shading Correction ................................................................................................................................................................ 5- 16
5.4
Parts Replacement Procedure .................................................................................................................5- 17
5.4.1
Copyboard Glass................................................................................................................................................... 5- 17
5.4.1.1
Removing the Copyboard Glass ............................................................................................................................................ 5- 17
5.4.1.2
After Replacing the Copyboard Glass.................................................................................................................................... 5- 17
5.4.1.3
Removing the ADF Reading Glass ........................................................................................................................................ 5- 17
5.4.1.4
After Replacing the ADF Reading Glass................................................................................................................................ 5- 18
5.4.2
Reader Controller PCB.......................................................................................................................................... 5- 18
5.4.2.1
Before Replacing the Reader Controller PCB........................................................................................................................ 5- 18
5.4.2.2
Before Removing the Reader Controller PCB ....................................................................................................................... 5- 18
5.4.2.3
Removing the Reader Controller PCB ................................................................................................................................... 5- 18
5.4.2.4
After Replacing the Reader Controller PCB........................................................................................................................... 5- 19
5.4.3
Inverter PCB .......................................................................................................................................................... 5- 20
5.4.3.1
Before Removing the Inverter PCB........................................................................................................................................ 5- 20
5.4.3.2
Removing the Inverter PCB ................................................................................................................................................... 5- 20
5.4.4
Scanner Motor ....................................................................................................................................................... 5- 21
5.4.4.1
Before Removing the Scanner Motor..................................................................................................................................... 5- 21
5.4.4.2
Removing the Scanner Motor ................................................................................................................................................ 5- 21
5.4.5
Contact Sensor...................................................................................................................................................... 5- 21
5.4.5.1
Before Removing the Contact Image Sensor (CIS) ............................................................................................................... 5- 21
5.4.5.2
Removing the Contact Image Sensor (CIS)........................................................................................................................... 5- 21
5.4.5.3
After Replacing the CIS ......................................................................................................................................................... 5- 22
5.4.6
Original Cover Sensor ........................................................................................................................................... 5- 22
5.4.6.1
Before Removing the Copyboard Cover Open/Closed Sensor (front/rear)............................................................................ 5- 22
5.4.6.2
Removing the Copyboard Cover Open/Closed Sensor (front/rear) ....................................................................................... 5- 22
5.4.7
Contact Sensor HP Sensor ................................................................................................................................... 5- 23
5.4.7.1
Before Removing the Contact Sensor HP Sensor ................................................................................................................. 5- 23
5.4.7.2
Removing the Contract Sensor Home Position Sensor ......................................................................................................... 5- 23
5.4.8
Original Sensor...................................................................................................................................................... 5- 23
5.4.8.1
Before Removing the Original Size Sensor (AB/Inchconfiguration)....................................................................................... 5- 23
5.4.8.2
Removing the Original Size Sensor (AB/Inch-configuration) ................................................................................................. 5- 23
Chapter 6
Laser Exposure
6.1
Construction ...............................................................................................................................................6- 1
6.1.1
Specifications, Control Mechanisms, and Functions ............................................................................................... 6- 1
6.1.2
Overview.................................................................................................................................................................. 6- 1
6.2
Various Control...........................................................................................................................................6- 3
6.2.1
Controlling the Laser Activation Timing ................................................................................................................... 6- 3
6.2.1.1
Turning On and Off the Laser Light ......................................................................................................................................... 6- 3
6.2.1.2
Controlling Synchronization in Main Scanning Direction ......................................................................................................... 6- 4
6.2.1.3
Controlling Synchronization in Sub Scanning Direction........................................................................................................... 6- 5
6.2.1.4
BD Correction .......................................................................................................................................................................... 6- 7
Summary of Contents for iR C3380 series
Page 1: ...Aug 29 2006 Service Manual iR C3380 2880 Series...
Page 2: ......
Page 6: ......
Page 23: ...Chapter 1 Introduction...
Page 24: ......
Page 26: ......
Page 52: ......
Page 53: ...Chapter 2 Installation...
Page 54: ......
Page 127: ...Chapter 3 Basic Operation...
Page 128: ......
Page 130: ......
Page 136: ......
Page 137: ...Chapter 4 Main Controller...
Page 138: ......
Page 160: ......
Page 161: ...Chapter 5 Original Exposure System...
Page 162: ......
Page 188: ...Chapter 5 5 24 F 5 68 4 Remove the original sensor 2 hook 1 F 5 69...
Page 189: ...Chapter 6 Laser Exposure...
Page 190: ......
Page 192: ......
Page 206: ......
Page 207: ...Chapter 7 Image Formation...
Page 208: ......
Page 256: ......
Page 257: ...Chapter 8 Pickup Feeding System...
Page 258: ......
Page 262: ......
Page 303: ...Chapter 9 Fixing System...
Page 304: ......
Page 306: ......
Page 321: ...Chapter 10 Externals and Controls...
Page 322: ......
Page 326: ......
Page 336: ...Chapter 10 10 10 F 10 10 2 Remove the check mark from SNMP Status Enabled...
Page 337: ...Chapter 10 10 11 F 10 11...
Page 359: ...Chapter 11 MEAP...
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Page 362: ......
Page 401: ...Chapter 12 RDS...
Page 402: ......
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Page 411: ...Chapter 13 Maintenance and Inspection...
Page 412: ......
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Page 416: ...Chapter 13 13 2 F 13 1 8 9 1 2 3 3 5 6 7 10 11 12 13 14 4...
Page 421: ...Chapter 14 Standards and Adjustments...
Page 422: ......
Page 424: ......
Page 431: ...Chapter 15 Correcting Faulty Images...
Page 432: ......
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Page 459: ...Chapter 16 Self Diagnosis...
Page 460: ......
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Page 481: ...Chapter 17 Service Mode...
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Page 484: ......
Page 571: ...Chapter 18 Upgrading...
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Page 603: ...Chapter 19 Service Tools...
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Page 609: ...Aug 29 2006...
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