Canon iR1200 Series Service Manual page 325

Contents
12.1 Image Adjustments......................................................................................................................................... 12-1
12.1.1 Leading Edge Read Start Position Adjustment ....................................................................................... 12-1
12.1.2 Left/Right Edge Read Start Position Adjustment.................................................................................... 12-1
12.2 Scanning System ............................................................................................................................................ 12-3
12.2.1 Preparing a Test Sheet for Adjustment.................................................................................................... 12-3
12.2.2 Contact Sensor LED Intensity Auto Adjustment .................................................................................... 12-3
12.3 Fixing System................................................................................................................................................. 12-4
12.3.1 Nip Adjustment ....................................................................................................................................... 12-4
12.4 Electrical Components ................................................................................................................................... 12-5
12.4.1 Outline ..................................................................................................................................................... 12-5
12.4.2 When Replacing the Image Processor PCB ............................................................................................ 12-5
12.5 ADF ................................................................................................................................................................ 12-6
12.5.1 Outline ..................................................................................................................................................... 12-6
12.5.1.1 Items of Adjustment and Sequence of Work.................................................................................... 12-6
12.5.1.2 Preparing a Test Sheet for Adjustment............................................................................................. 12-6
12.5.2 Adjusting the Mechanical System ........................................................................................................... 12-6
12.5.2.1 Removing the Skew.......................................................................................................................... 12-6
12.5.2.2 Left/Right Registration Adjustment ................................................................................................. 12-7
12.5.3 Adjusting the Ellectrical System ............................................................................................................. 12-7
12.5.3.1 Registration Arch Auto Adjustment................................................................................................. 12-7
12.5.3.2 Original Read Position Adjustment.................................................................................................. 12-8
12.5.3.3 Original Speed Adjustment .............................................................................................................. 12-8
12.5.3.4 Leading Edge Read Start Position Adjustment ................................................................................ 12-8
12.5.3.5 Trailing Edge Read End Position Adjustment.................................................................................. 12-9
Contents