Canon imageRUNNER 1019j, Service Manual

Page: 7 / 26

Contents
4.2.2
Basic Sequence after Depression of Start Key (Book mode, One Sheet of original)
4-4
4.2.3
Basic Sequence after Depression of Start Key (ADF Mode, One Sheet of Original)
4-5
.3
Various Control
.................................................................................................. 4-6
4.3.1
Enlargement/Reduction
............................................................................................4-6
4.3.1.1
Magnification Change in Vertical Scan Direction
............................................................ 4-6
4.3.1.2 Magnification Change in Horizontal Scan Direction ........................................................ 4-6
4.3.2 Dirt Sensor Control ....................................................................................................4-6
4.3.2.1 Outline .................................................................................................................................... 4-6
4.4 Parts Replacement Procedure ........................................................................ 4-8
4.4.1
Copyboard glass
........................................................................................................4-8
4.4.2 Reader Controller PCB .............................................................................................4-8
4.4.3 Scanner Motor ............................................................................................................4-9
4.4.4
Contact sensor
...........................................................................................................4-9
4.4.5 Contact Sensor HP Sensor ....................................................................................4-10
Chapter 5
Laser Exposure
5.1
Construction
....................................................................................................... 5-1
5.1.1 Specifications and Control Mechanism .................................................................. 5-1
5.1.2
Main Components
...................................................................................................... 5-2
5.2 Parts Replacement Procedure ........................................................................ 5-3
5.2.1
Laser Scanner Unit
....................................................................................................5-3
Chapter 6 Image Formation
6.1 Construction ....................................................................................................... 6-1
6.1.1 Specifications and Control Mechanism .................................................................. 6-1
6.1.2
Outline
.......................................................................................................................... 6-2
6.2
Image Formation Process
................................................................................ 6-3
6.2.1
Reproduction Processes
........................................................................................... 6-3
6.3 Parts Replacement Procedure ........................................................................ 6-5
6.3.1 Developing Assembly ................................................................................................6-5
6.3.2 Transfer Charging Roller ..........................................................................................6-5
6.3.3
Waste Toner Full Sensor
..........................................................................................6-6
Chapter 7 Pickup/Feeding System
7.1 Construction ....................................................................................................... 7-1
7.1.1
Outline
.......................................................................................................................... 7-1