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Chapter 13 Standards and Adjustments
13.1 Image Adjustment Basic Procedure ...........................................................................................................................13-1
13.1.1 Image Adjustment Basic Procedure 1...................................................................................................................................... 13-1
13.1.2 Image Adjustment Basic Procedure 2...................................................................................................................................... 13-1
13.1.3 Image Adjustment Basic Procedure 3...................................................................................................................................... 13-2
13.1.4 Image Adjustment Basic Procedure 4...................................................................................................................................... 13-3
13.2 Scanning System ........................................................................................................................................................13-5
13.2.1 After Replacing the CCD Unit................................................................................................................................................. 13-5
13.2.2 After Replacing the Copyboard Glass ..................................................................................................................................... 13-5
13.2.3 After Replacing the Reader Control PCB and Clearing the RAM .......................................................................................... 13-5
13.3 Image Formation System ...........................................................................................................................................13-5
13.3.1 After Replacing the Primary Charging Wire ........................................................................................................................... 13-5
13.3.2 After Replacing the Primary Charging Assembly ................................................................................................................... 13-5
13.3.3 Replacing the Potential Sensor ................................................................................................................................................ 13-6
13.3.4 After Replacing the Pre-transfer Charging Assembly ............................................................................................................. 13-7
13.3.5 After Replacing the Waste Toner Box..................................................................................................................................... 13-7
13.3.6 After Replacing the Secondary Transfer Roller Waste Toner Case ........................................................................................ 13-7
13.3.7 After Replacing the Photosensitive Drum ............................................................................................................................... 13-7
13.3.8 Replacing the Waste Toner Sensor .......................................................................................................................................... 13-7
13.3.9 After Replacing the ATR Sensor ............................................................................................................................................. 13-7
13.3.10 After Replacing the Patch Image Reading Sensor ................................................................................................................. 13-7
13.4 Fixing System ............................................................................................................................................................13-7
13.4.1 Checking the Nip Width ......................................................................................................................................................... 13-7
13.4.2 After Replacing the Fixing Roller............................................................................................................................................ 13-8
13.4.3 After Replacing the Fixing Belt ............................................................................................................................................... 13-8
13.4.4 After Replacing the Fixing Cleaning Belt ............................................................................................................................... 13-8
13.4.5 After Replacing the Fixing Belt / Pressure Pad Cover ............................................................................................................ 13-8
13.4.6 When replacing pressure belt................................................................................................................................................... 13-8
13.4.7 When Replacing Pressure Belt Unit-Related Durable Parts .................................................................................................... 13-9
13.5 Electrical Components .............................................................................................................................................13-10
13.5.1 Replacing the DC controller PCB.......................................................................................................................................... 13-10
13.5.2 After Replacing the Main Control PCB (main) ..................................................................................................................... 13-10
13.5.3 After Replacing the SRAM PCB ........................................................................................................................................... 13-10
13.5.4 After Replacing the HDD ...................................................................................................................................................... 13-11
13.5.5 Replacing the HV2, HV4, HV6-1 and HV6-2 ....................................................................................................................... 13-11
13.5.6 Inputting the Rank Value at Replacing the Paper Thickness Sensor..................................................................................... 13-11
13.6 Pickup/Feeding System............................................................................................................................................13-11
13.6.1 Vertical Registration Adjustment at Cassette Pickup ............................................................................................................ 13-11
13.6.2 Vertical Registration Adjustment at Manual Pickup ............................................................................................................. 13-11
13.6.3 Registering Paper Width Standard Value at Manual Feeder Tray......................................................................................... 13-12
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