Canon iR1600 Technical Information PDF herunterladen (Seite 14)

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101

2002 CANON INC. 2001 2001 CANON iR1600/iR2000/iR1610/iR2010 SERIES REV.0 MAR. 2002

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CONTENTS

1 Outline of Operation .......................... 4-1

1.1 Outline ....................................... 4-1

1.2 Basic Sequence of Operation

(laser exposure system) ............. 4-3

2 Generating the Horizontal Signal ...... 4-4

2.1 Outline ....................................... 4-4

2.2 Signals Used .............................. 4-4

3 Laser Driver Circuit ........................... 4-6

3.1 Laser Control ............................. 4-6

CHAPTER 4 LASER EXPOSURE SYSTEM

4 Controlling the Scanner Motor .......... 4-8

4.1 Outline ....................................... 4-8

4.2 Controlling the Scanner

Motor ......................................... 4-8

4.3 Scanner Pre-Rotation ................ 4-9

5 Disassembly and Assembly ............. 4-10

5.1 Removing the Laser/

Scanner Unit ............................ 4-11

1 Outline of Processes........................... 5-1

1.1 Sequence of Operation

(image formation system) ......... 5-3

2 1 Controlling the Primary Charging

Roller Bias .......................................... 5-4

2.1 Outline ....................................... 5-4

2.2 Turning On and Off the Bias ..... 5-5

2.2.1 DC Bias ............................... 5-5

2.2.2 AC Bias ............................... 5-5

2.3 Bias Constant Voltage/

Constant Current Control .......... 5-5

2.3.1 DC Bias Constant Voltage

Control ................................. 5-5

2.3.2 AC Bias Constant Current

Control ................................. 5-5

3 Controlling the Developing Bias ....... 5-6

3.1 Outline ....................................... 5-6

3.2 Turning On/Off the Bias ........... 5-7

3.2.1 DC Bias ............................... 5-7

3.2.2 AC Bias ............................... 5-7

CHAPTER 5 IMAGE FORMATION SYSTEM

3.3 Controlling the Bias to a

Constant Voltage Level.............. 5-7

3.3.1 Controlling the Developing

DC Bias to a Constant

Level .................................... 5-7

3.3.2 Controlling the Developing

AC Bias to a Constant

Voltage Level ....................... 5-7

3.4 Controlling the Voltage Level of

the Developing DC Bias ............ 5-7

4 Controlling the Transfer

Charging Roller Bias.......................... 5-8

4.1 Outline ....................................... 5-8

4.2 Turning On and Off the Bias ..... 5-9

4.2.1 Turning On and Off the

Positive DC Bias ................. 5-9

4.2.2 Turning On and Off the

Negative DC Bias ................ 5-9

4.3 Controlling the Bias to a Constant

Current /Voltage Level .............. 5-9

5.2 CS Unit .................................... 3-23

5.2.1 Removing the CS Unit ...... 3-23

5.2.2 Points to Note When

Mounting the CS Unit ....... 3-26

5.2.3 After Replacing the

CS Unit .............................. 3-28

5.2.4 Points to Note When

Handling the CS Unit ........ 3-29

5.3 Reader Motor ........................... 3-30

5.3.1 Removing the Reader

Motor ................................. 3-30

5.3.2 Points to Note When Mounting

the Reader Motor .............. 3-31

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 737 738

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