Canon ImageCLASS MF4690 Скачать руководство пользователя страница 8

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Contents

4.1

Basic Operation .......................................................................................................................................... 4- 1

4.1.1

Basic Operation .......................................................................................................................................................4- 1

4.1.2

Original Detection ....................................................................................................................................................4- 2

4.2

Detection Jams........................................................................................................................................... 4- 2

4.2.1

Jam Detection ..........................................................................................................................................................4- 2

4.3

ADF ............................................................................................................................................................ 4- 3

4.3.1

Pick-up Roller...........................................................................................................................................................4- 3

4.3.1.1

Removing the ADF Pickup Roller ............................................................................................................................................ 4- 3

4.3.2

ADF Motor................................................................................................................................................................4- 3

4.3.2.1

Preparation for Removing the ADF Motor................................................................................................................................ 4- 3

4.3.2.2

Removing the ADF Motor ........................................................................................................................................................ 4- 3

4.3.3

Separation Pad ........................................................................................................................................................4- 4

4.3.3.1

Removing the Separation Pad ................................................................................................................................................. 4- 4

Chapter 5

Laser Exposure

5.1

Overview/Configuration .............................................................................................................................. 5- 1

5.1.1

Overview ..................................................................................................................................................................5- 1

5.2

Controlling the Laser Activation Timing ...................................................................................................... 5- 2

5.2.1

Laser ON / OFF Control...........................................................................................................................................5- 2

5.3

Controlling the Intensity of Laser Light ....................................................................................................... 5- 2

5.3.1

Auto Photoelectric Current Control (APC) ...............................................................................................................5- 2

5.4

Controlling the Laser Scanner Motor.......................................................................................................... 5- 3

5.4.1

Overview ..................................................................................................................................................................5- 3

5.4.2

Scanner Motor Speed Control .................................................................................................................................5- 3

5.4.3

Detection of Fault of the Scanner Motor ..................................................................................................................5- 3

5.5

Parts Replacement Procedure ................................................................................................................... 5- 4

5.5.1

Laser/Scanner Unit ..................................................................................................................................................5- 4

5.5.1.1

Preparation for Removing the Laser Scanner Unit .................................................................................................................. 5- 4

5.5.1.2

Removing the Laser Scanner Unit ........................................................................................................................................... 5- 4

Chapter 6

Image Formation

6.1

Overview/Configuration .............................................................................................................................. 6- 1

6.1.1

Configuration............................................................................................................................................................6- 1

6.1.2

Print Process............................................................................................................................................................6- 1

6.2

Driving and Controlling the High-Voltage System ...................................................................................... 6- 3

6.2.1

Generation of Transfer Charging Bias .....................................................................................................................6- 3

6.3

Toner Cartridge .......................................................................................................................................... 6- 3

6.3.1

Toner Level Detection..............................................................................................................................................6- 3

6.4

Parts Replacement Procedure ................................................................................................................... 6- 4

6.4.1

Transfer Charging Roller..........................................................................................................................................6- 4

6.4.1.1

Removing the Transfer Charging Roller .................................................................................................................................. 6- 4

Chapter 7

Pickup and Feed System

7.1

Overview/Configuration .............................................................................................................................. 7- 1

7.1.1

Overview ..................................................................................................................................................................7- 1

7.2

Other Control .............................................................................................................................................. 7- 1

7.2.1

Overview ..................................................................................................................................................................7- 1

7.3

Detection Jams........................................................................................................................................... 7- 3

7.3.1

Jam Detection Outline..............................................................................................................................................7- 3

7.3.1.1

Overview .................................................................................................................................................................................. 7- 3

7.3.2

Delay Jams ..............................................................................................................................................................7- 3

7.3.2.1

Pickup Delay Jam ................................................................................................................................................................... 7- 3

7.3.2.2

Delivery Delay Jam .................................................................................................................................................................. 7- 3