Canon iR6570 Series Portable Manual page 33

Contents
2.1 Image Adjustment Basic Procedure ................................................................................................................... 2-1
2.1.1 Making Pre-Checks ..................................................................................................................................... 2-1
2.1.2 Making Checks on the Printer Unit (1/2) .................................................................................................... 2-2
2.1.3 Making Checks on the Printer Unit (2/2) .................................................................................................... 2-4
2.1.4 Making Checks on the Reader Unit ............................................................................................................ 2-6
2.1.5 Checking the Potential System.................................................................................................................... 2-9
2.1.6 Checking the Surface Potential Control System ....................................................................................... 2-12
2.1.7 Potential Control System Conversion Table ............................................................................................. 2-16
2.1.8 Emergency Measures for a Fault in the Potential Sensor.......................................................................... 2-22
2.2 Image Adjustments........................................................................................................................................... 2-23
2.2.1 Standards of Image Position...................................................................................................................... 2-23
2.2.2 Checking the Image Position..................................................................................................................... 2-23
2.2.3 Adjusting Side Registration....................................................................................................................... 2-24
2.2.4 Adjusting the Image Leading Edge Margin .............................................................................................. 2-28
2.2.5 Adjusting the Left/Right Non-Image Width ............................................................................................. 2-28
2.2.6 Adjusting the Leading Edge Non-Image Width........................................................................................ 2-29
2.3 Scanning System .............................................................................................................................................. 2-30
2.3.1 After Replacing the Reader Controller PCB ............................................................................................. 2-30
2.3.2 When Replacing the CCD Unit ................................................................................................................. 2-31
2.3.3 Adjusting the Position of the No. 1/No. 2 Mirror Base............................................................................. 2-31
2.3.4 When Replacing the Platen Board Glass................................................................................................... 2-34
2.3.5 When Replacing the Reading Glass .......................................................................................................... 2-34
2.3.6 When Replacing the Scanning Lamp ........................................................................................................ 2-34
2.3.7 When Replacing the Inverter PCB ............................................................................................................ 2-34
2.4 Laser Exposure System .................................................................................................................................... 2-36
2.4.1 When Replacing the Scanner Unit ............................................................................................................ 2-36
2.5 Image Formation System.................................................................................................................................. 2-37
2.5.1 Outline of the Charging Wire .................................................................................................................... 2-37
2.5.2 Routing the Charging Wire ....................................................................................................................... 2-37
2.5.3 Routing the Grid for the Primary Charging Assembly.............................................................................. 2-39
2.5.4 Adjusting the Height of the Charging Wire .............................................................................................. 2-40
2.5.5 Mounting the Cleaning Blade.................................................................................................................... 2-41
2.5.6 Mounting the Side Seal ............................................................................................................................. 2-42
2.6 Fixing System................................................................................................................................................... 2-44
2.6.1 Applying Grease After Replacing the Fixing Roller................................................................................. 2-44
2.6.2 Adjusting the Nip Width ........................................................................................................................... 2-44
2.6.3 Adjusting the Position of the Fixing Web Solenoid (SL9) ....................................................................... 2-45
2.6.4 After Replacing the Fixing Web ............................................................................................................... 2-45
2.6.5 Adjusting the Position of he Fixing Inlet Guide Solenoid (SL1) .............................................................. 2-46
2.6.6 Adjusting the Position of the Fixing Inlet Guide ...................................................................................... 2-46
2.7 Electrical Components ..................................................................................................................................... 2-47
2.7.1 When Replacing the DC Controller PCB.................................................................................................. 2-47
2.7.2 When Replacing the HVT PCB................................................................................................................. 2-47
2.7.3 After Replacing the HDD.......................................................................................................................... 2-48
Contents