COPYRIGHT © 2002 CANON INC.
2001 2001
CANON iR1600/iR2000/iR1610/iR2010 SERIES REV.0 MAR. 2002
xii
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
Содержание iR1600 Series
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