Canon iR1200 Series Service Manual page 10

Contents
9.2.1 Power Supply .............................................................................................................................................. 9- 2
9.2.2 Protection Function ..................................................................................................................................... 9- 4
9.2.3 Backup Battery ............................................................................................................................................ 9- 4
9.2.4 Energy-Saving Function.............................................................................................................................. 9- 8
9.3 Parts Replacement Procedure .......................................................................................................................... 9- 10
9.3.1 Control Panel............................................................................................................................................. 9- 10
9.3.2 Analog Processor PCB .............................................................................................................................. 9- 10
9.3.3 Removing the DC Controller PCB............................................................................................................ 9- 12
9.3.4 Image Processor PCB................................................................................................................................ 9- 16
9.3.5 Printer Controller PCB .............................................................................................................................. 9- 17
9.3.6 NCU PCB ............................................................................................................................................... 9- 17
9.3.7 Modular Jack PCB .................................................................................................................................... 9- 18
9.3.8 Removing the Printer Power Supply PCB ................................................................................................ 9- 18
9.3.9 Relay PCB ................................................................................................................................................. 9- 23
9.3.10 Humidity Sensor...................................................................................................................................... 9- 25
9.3.11 Reader Unit Slide Detecting Switch........................................................................................................ 9- 27
9.3.12 Toner Supply Cover Switch .................................................................................................................... 9- 30
9.3.13 Fans ......................................................................................................................................................... 9- 32
9.3.14 Motor of Main Drive Assembly .............................................................................................................. 9- 36
9.3.15 Right Door............................................................................................................................................... 9- 41
Chapter 10 Original Feeding System
10.1 Basic Construcion .......................................................................................................................................... 10- 1
10.1.1Outline ..................................................................................................................................................... 10- 1
10.2 Basic Operation ............................................................................................................................................. 10- 2
10.2.1Picking Up and Moving Originals ........................................................................................................... 10- 2
10.2.2Moving Down the Original Pickup Roller and Moving Up the Original Stopper................................... 10- 2
10.3 Detection Jams............................................................................................................................................... 10- 4
10.3.1Outline ..................................................................................................................................................... 10- 4
10.3.2Types of Jams .......................................................................................................................................... 10- 4
10.4 Parts Replacement Procedure ........................................................................................................................ 10- 6
10.4.1 ADF ......................................................................................................................................................... 10- 6
10.4.2 ADF Drive Unit....................................................................................................................................... 10- 7
10.4.3 ADF Motor Unit...................................................................................................................................... 10- 9
10.4.4 Feeding Outside Guide.......................................................................................................................... 10- 12
10.4.5 Separation Roller Unit........................................................................................................................... 10- 14
10.4.6 Separation Roller .................................................................................................................................. 10- 17
10.4.7 Pickup Roller ........................................................................................................................................ 10- 21
10.4.8 Original Separation Pad ........................................................................................................................ 10- 24
10.4.9 Registration Roller ............................................................................................................................... 10- 25
10.4.10 White Roller ....................................................................................................................................... 10- 28
10.4.11 Feed Roller ......................................................................................................................................... 10- 30
10.4.12 Original Feed Roller ........................................................................................................................... 10- 32
10.4.13 Original Delivery Roller...................................................................................................................... 10- 36
10.4.14 Original Sensor.................................................................................................................................... 10- 39
10.4.15 Registration Sensor ............................................................................................................................. 10- 42
10.4.16 Original Delivery Sensor..................................................................................................................... 10- 44
10.4.17 Slide Guide .......................................................................................................................................... 10- 47