Canon iR4570 Series Service Manual page 24

Contents
Chapter 12 Maintenance and Inspection
12.1 Periodically Replaced Parts ........................................................................................................................... 12- 1
12.1.1Overview.................................................................................................................................................. 12- 1
12.1.2Reader Unit .............................................................................................................................................. 12- 1
12.1.3Printer Unit .............................................................................................................................................. 12- 1
12.2 Durables and Consumables............................................................................................................................ 12- 2
12.2.1Overview.................................................................................................................................................. 12- 2
12.2.2Reader Unit .............................................................................................................................................. 12- 2
12.2.3Printer Unit .............................................................................................................................................. 12- 2
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