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COPYRIGHT
©
2001 CANON INC. 2000 2000 2000 2000 CANON iR2200/iR2800/iR3300 REV.0 MAR. 2001
CONTENTS
R1
Contents
CHAPTER 1 BASIC OPERATION
CHAPTER 2 ORIGINAL EXPOSURE SYSTEM
1 Outline of Electrical Circuitry....... 1-1R
1.1 Outline .................................... 1-1R
1.2 Reader Controller PCB ........... 1-1R
2 Basic Sequence of Operations....... 1-2R
2.1 Basic Sequence of Operations at
Power-On ................................ 1-2R
1 Outline of Operations.................... 2-1R
1.1 Outline .................................... 2-1R
1.2 Sequence of Operations (original
exposure)................................. 2-3R
1.2.1 Book Mode, 1 Original,
Copyboard Closed ............ 2-3R
1.2.2 Book Mode, 1 Original,
Copyboard Cover Open .... 2-4R
1.3 Enlargement/Reduction (zoom)
................................................ 2-5R
1.3.1 Changing the Reproduction Ra-
tio in Main Scanning Direction
.......................................... 2-5R
1.3.2 Changing the Reproduction Ra-
tio in Sub Scanning Direction
.......................................... 2-5R
2 Scanner Drive System ................... 2-6R
2.1 Outline .................................... 2-6R
2.2 Controlling the Scanner Motor
................................................ 2-7R
2.2.1 Controlling the Motor When
Scanning an Image ........... 2-7R
2.2.2 Reversing the Scanner After
Scanning in Main Reading Di-
rection ............................... 2-8R
3 Controlling the Scanning Lamp (LA2)
....................................................... 2-9R
3.1 Outline .................................... 2-9R
3.2 Scanning Lamp ....................... 2-9R
2.2 Basic Sequence of Operations in
Book Mode ............................. 1-2R
3 Inputs to and Outputs from the Major
PCBs.............................................. 1-3R
3.1 Wiring of Major PCBs ............ 1-3R
3.3 Turning On/Off the Lamp ....... 2-9R
3.4 Detecting an Error................. 2-10R
4 Detecting the Size of Originals ... 2-11R
4.1 Outline .................................. 2-11R
4.2 Points of Detection ............... 2-11R
4.3 Outline of Detection ............. 2-11R
4.4 Outline of Detection Operation
.............................................. 2-12R
4.4.1 Book Mode, 1 Original,
Copyboard Cover Open ... 2-12R
4.4.2 Book Mode, 1 Original,
Copyboard Cover Close... 2-13R
5 Disassembly and Assembly......... 2-15R
5.1 Exposure Lamp ..................... 2-16R
5.1.1 Removing the Exposure Lamp
........................................ 2-16R
5.1.2 After Replacing the Scanning
Lamp ............................... 2-17R
5.2 Scanner Drive Assembly ....... 2-18R
5.2.1 Removing the Scanner Motor
........................................ 2-18R
5.2.2 Mounting the Motor Unit
........................................ 2-19R
5.2.3 Removing the Scanner Drive
Cable ............................... 2-20R
5.2.4 Routing the Scanner Drive
Cable ............................... 2-21R
5.2.5 Adjusting the Position of the No.
1/No. 2 Mirror Base ........ 2-22R