1.1 Periodically Replaced Parts............................................................................................................................... 1- 1

1.1.1Outline ......................................................................................................................................................... 1- 1

1.1.2Reader Unit.................................................................................................................................................. 1- 1

1.1.3Printer Unit .................................................................................................................................................. 1- 1

1.2 Durables and Consumables ............................................................................................................................... 1- 3

1.2.1Outline ......................................................................................................................................................... 1- 3

1.2.2Reader Unit.................................................................................................................................................. 1- 3

1.2.3Printer Unit .................................................................................................................................................. 1- 3

1.3 Scheduled Servicing Basic Procedure ............................................................................................................... 1- 6

1.3.1Scheduled Servicing Basic Procedure ......................................................................................................... 1- 6

1.3.2Periodical Servicing Chart Reader Unit ...................................................................................................... 1- 7

1.3.3Periodical Servicing Chart Printer Unit....................................................................................................... 1- 8

1.3.4Points to Note for Periodical Servicing ..................................................................................................... 1- 10

1.4 Cleaning........................................................................................................................................................... 1- 12

1.4.1Cleaning the Primary Anti-Stray Sheet ..................................................................................................... 1- 12

1.4.2Cleaning the Developing Anti-Stray Sheet ............................................................................................... 1- 12

1.4.3Cleaning the Cleaner Side Scraper ............................................................................................................ 1- 12

1.4.4Cleaning the Photosensitive Drum ............................................................................................................ 1- 13

Chapter 2　Standards and Adjustments

2.1 Image Adjustment Basic Procedure .................................................................................................................. 2- 1

2.1.1Making Pre-Checks ..................................................................................................................................... 2- 1

2.1.2Making Checks on the Printer Unit (1/2) .................................................................................................... 2- 2

2.1.3Making Checks on the Printer Unit (2/2) .................................................................................................... 2- 4

2.1.4Making Checks on the Reader Unit ............................................................................................................ 2- 6

2.1.5Checking the Potential System.................................................................................................................... 2- 9

2.1.6Checking the Surface Potential Control System ....................................................................................... 2- 12

2.1.7Potential Control System Conversion Table ............................................................................................. 2- 16

2.1.8Emergency Measures for a Fault in the Potential Sensor.......................................................................... 2- 22

2.2 Image Adjustments.......................................................................................................................................... 2- 23

2.2.1Standards of Image Position...................................................................................................................... 2- 23

2.2.2Checking the Image Position..................................................................................................................... 2- 23

2.2.3Adjusting Side Registration....................................................................................................................... 2- 23

2.2.4Adjusting the Image Leading Edge Margin .............................................................................................. 2- 25

2.2.5Adjusting the Left/Right Non-Image Width ............................................................................................. 2- 26

2.2.6Adjusting the Leading Edge Non-Image Width........................................................................................ 2- 26

2.3 Scanning System ............................................................................................................................................. 2- 27

2.3.1After Replacing the Reader Controller PCB ............................................................................................. 2- 27

2.3.2When Replacing the CCD Unit ................................................................................................................. 2- 27

2.3.3Adjusting the Position of the No. 1/No. 2 Mirror Base............................................................................. 2- 28

2.3.4When Replacing the Platen Board Glass................................................................................................... 2- 29

Contents