Technical information

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
Ratio in Main Scanning
Direction ........................... 2-5R
1.3.2 Changing the Reproduction
Ratio 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
Direction ........................... 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