Canon iR5000i Service Manual page 168

Contents
CHAPTER 1 GENERAL DESCRIPTION
1. Safety .............................................. 1-1P
1.1 Safety of Laser Light ............... 1-1P
1.2 Regulations Under the Center for
Devices and Radiological Health
................................................. 1-1P
CHAPTER 2 SEQUENCE OF OPERATIONS
1. Basic Operations ............................ 2-1P
1.1 Functional Construction .......... 2-1P
1.2 Outline of Electrical Circuitry ... 2-2P
1.2.1 Outline ............................... 2-2P
1.2.2 DC Controller PCB ........... 2-2P
1.3 Sequence of Basic Operations ... 2-4P
1.3.1 Basic Sequence of Operations at
Power-On ........................... 2-4P
1.4 Controlling the Main Motor (M2)
................................................. 2-6P
CHAPTER 3 LASER EXPOSURE SYSTEM
1. Outline of Operations ..................... 3-1P
1.1 Outline ..................................... 3-1P
1.2 Basic Sequence of Operations
(laser exposure system) ........... 3-3P
2. Generating Sync Signals ................ 3-4P
2.1 Outline ..................................... 3-4P
2.2 Flow of Sync Signals ............... 3-5P
COPYRIGHT © 2001 CANON INC. 2000 2000 2000 2000 CANON iR5000i/iR6000i REV.0 JUNE 2001
1.3 Handling the Laser Unit ........... 1-3P
1.4 Safety of Toner ......................... 1-6P
2. Image Formation ............................ 1-7P
2.1 Outline ..................................... 1-7P
1.4.1 Outline ............................... 2-6P
1.5 Inputs to and Outputs from the Ma-
jor PCBs ................................... 2-7P
1.5.1 Wiring Diagram of Major PCBs
........................................... 2-7P
1.5.2 Inputs to the DC Controller
PCB .................................... 2-8P
1.5.3 Inputs to the DC Controller
PCB .................................. 2-14P
3. Laser Driver Circuit ....................... 3-6P
3.1 Controlling the Laser ............... 3-6P
4. Controlling the Laser Scanner Motor
........................................................ 3-9P
4.1 Outline ..................................... 3-9P
5. Disassembly and Assembly .......... 3-10P
5.1 Scanner Unit .......................... 3-11P
CONTENTS
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