Canon iR4570 Series Service Manual page 23

12.3 Scheduled Servicing Basic Procedure ........................................................................................................... 12- 5
12.3.1Scheduled Servicing for the Reader Unit ................................................................................................ 12- 5
12.3.2Scheduled Servicing for the Printer Unit ................................................................................................ 12- 5
12.3.3Scheduled Servicing Basic Procedures ................................................................................................... 12- 8
12.3.4Points to Note About the Scheduled Servicing ..................................................................................... 12- 10
12.4 Cleaning....................................................................................................................................................... 12- 12
12.4.1Cleaning the Transfer/Feed Guide ........................................................................................................ 12- 12
12.4.2Cleaning the Developing Assembly Spacer, Feed Guide, Dust-Blocking Glass, and Fixing Inlet Guide. 12-
12
12.4.3Cleaning the Film Bias Static Eliminator.............................................................................................. 12- 21
12.4.4Cleaning the Film Bias Static Eliminator.............................................................................................. 12- 29
Chapter 13 Standards and Adjustments
13.1 Image Adjustments........................................................................................................................................ 13- 1
13.1.1Standards for Image Position .................................................................................................................. 13- 1
13.1.2Adjusting the Image Position .................................................................................................................. 13- 1
13.1.3Cassette.................................................................................................................................................... 13- 3
13.1.4Manual Feed Tray ................................................................................................................................... 13- 5
13.1.5Side Paper Deck ...................................................................................................................................... 13- 5
13.2 Scanning System ........................................................................................................................................... 13- 7
13.2.1After Replacement of the CIS ................................................................................................................. 13- 7
13.2.2After Replacing the Reader Controller PCB or Initializing the RAM .................................................... 13- 7
13.3 Laser Exposure System ................................................................................................................................. 13- 9
13.3.1After Replacing the Laser Scanner Unit.................................................................................................. 13- 9
13.4 Image Formation System............................................................................................................................. 13- 10
13.4.1After Replacing the Developing Unit.................................................................................................... 13- 10
13.4.2After Replacing the Drum Unit (APVC correction) ............................................................................. 13- 10
13.5 Electrical Components ................................................................................................................................ 13- 11
13.5.1After Replacing the HDD...................................................................................................................... 13- 11
13.5.2After Replacing the DC Controller PCB ............................................................................................... 13- 11
13.5.3After Replacing the Main Controller PCB ............................................................................................ 13- 11
13.5.4After Replacing the Reader Controller PCB ......................................................................................... 13- 12
13.6 Pickup/Feeding System ............................................................................................................................... 13- 14
13.6.1Adjusting the Horizontal Registration When Replacing the Cassette................................................... 13- 14
13.6.2Adjusting the Horizontal Registration When Replacing the Duplex Unit ............................................ 13- 16
13.6.3Adjusting the Manual Feed Pickup Horizontal Registration................................................................. 13- 16
13.6.4Registering the Paper Width Basic Value ............................................................................................. 13- 17
Chapter 14 Correcting Faulty Images
14.1 Making lnitial Checks ................................................................................................................................... 14- 1
14.1.1Site Environment ..................................................................................................................................... 14- 1
14.1.2Checking the Paper.................................................................................................................................. 14- 1
14.1.3Checking the Placement of Paper............................................................................................................ 14- 1
14.1.4Checking the Durables ............................................................................................................................ 14- 1
14.1.5Checking the Periodically Serviced Items............................................................................................... 14- 1
14.1.6Checking the Units and Functional Systems ........................................................................................... 14- 2
14.1.7Others ...................................................................................................................................................... 14- 3
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