Canon IMAGERUNNER 7105, Руководство по обслуживанию, Страница: 7 / 21

Contents
7.7.1
Outline
...................................................................................................................................................... 7- 19
7.7.2
Controlling the Developing Assembly
................................................................................................. 7- 20
7.7.3
Controlling the Toner Cartridge Drive Mechanism
........................................................................... 7- 21
7.7.4 Controlling the Developing Bias ........................................................................................................... 7- 22
7.7.5 Detecting the Toner Level and Controlling the Toner Supply Mechanism ................................... 7- 23
7.8 Transfer Mechanism ..................................................................................................................................... 7- 27
7.8.1
Transfer Guide Bias
............................................................................................................................... 7- 27
7.8.1.1 Overview ........................................................................................................................................... 7- 27
7.8.1.2 Controlling the Output to Suit the Environment .......................................................................... 7- 28
7.8.2 Transfer Charging Mechanism ............................................................................................................. 7- 29
7.8.2.1 Outline ............................................................................................................................................... 7- 29
7.8.2.2 Controlling the Output to Suit the Environment (fuzzy control) ................................................ 7- 30
7.8.2.3 Correcting the Output at the Trailing Edge of Paper ................................................................. 7- 30
7.8.2.4 Transfer Charging Assembly Cleaning Mechanism .................................................................. 7- 31
7.8.2.5 Others ............................................................................................................................................... 7- 32
7.9 Separation Mechanism ................................................................................................................................ 7- 33
7.9.1 Separation Charging Mechanism ......................................................................................................... 7- 33
7.9.1.1 Outline ............................................................................................................................................... 7- 33
7.9.1.2 Correcting the Output to Suit the Environment and the Toner Deposit .................................. 7- 34
7.9.1.3 Correcting the Output upon Detection of Leakage .................................................................... 7- 34
7.9.1.4 Others ............................................................................................................................................... 7- 34
7.10 Parts Replacement Procedure .................................................................................................................. 7- 35
7.10.1 Process Unit .......................................................................................................................................... 7- 35
7.10.2 Pre-Exposure Lamp ............................................................................................................................. 7- 36
7.10.3 Primary Charging Assembly ............................................................................................................... 7- 37
7.10.4 Pre-Transfer Charging Assembly ....................................................................................................... 7- 37
7.10.5 Photosensitive Drum ............................................................................................................................ 7- 38
7.10.6 Drum Cleaner Unit ................................................................................................................................ 7- 39
7.10.7 Photosensitive Drum Heater ............................................................................................................... 7- 40
7.10.8 Sub Hopper ............................................................................................................................................ 7- 40
7.10.9 Developing Assembly .......................................................................................................................... 7- 42
7.10.10 Developing Cylinder ........................................................................................................................... 7- 43
7.10.11 Developing Blade ................................................................................................................................ 7- 44
7.10.12 Developing Cylinder Deceleration Clutch ....................................................................................... 7- 45
7.10.13 Developing Cylinder Clutch ............................................................................................................... 7- 46
7.10.14 Transfer/Separation Charging Assembly ........................................................................................ 7- 46
7.10.15 Pre-Transfer Exposure LED .............................................................................................................. 7- 47
7.10.16 Separation Claw/Separation Claw Drive Assembly ...................................................................... 7- 47
7.10.17 Potential Sensor .................................................................................................................................. 7- 48
7.10.18 Dust-Collecting Roller ........................................................................................................................ 7- 50
7.10.19 Charging Wire ..................................................................................................................................... 7- 50
Chapter 8 Pickup/Feeding System
8.1
Construction
..................................................................................................................................................... 8- 1
8.1.1
Specifications and Construction
............................................................................................................ 8- 1
8.1.2
Arrangement of Rollers and Sensors
.................................................................................................... 8- 1
8.1.3
Control System
......................................................................................................................................... 8- 2
8.1.4
Controlling the Pickup Motor (M2)
......................................................................................................... 8- 3