Chapter 5 Laser Exposure System; Operations; Functions - Canon CLC 1120 Service Manual

I.

OPERATIONS

A. Functions
The major parts and functions of the laser exposure system are as follows:
Major parts
Laser semiconductor
Laser scanner motor (M3)
BD mirror/BD PCB
Laser controller PCB
Laser driver PCB
Laser scanner motor driver PCB
DC driver
PCB
Cylindrical lens
Collimating lens
Laser unit
Photosensitive
drum
Laser driver
PCB
COPYRIGHT © 1999 CANON INC.
Figure 5-101
8-facet mirror
Laser scanner motor (M3)
BD mirror
Laser
controller
PCB
Figure 5-101
CANON CLC1120/1130/1150 REV.0 MAR. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)

CHAPTER 5 LASER EXPOSURE SYSTEM

Descriptions
Visible light (670 nm)
Brushless DC motor
Laser detection/BD signal generation
Laser emission timing and video signal control
Laser emission control
Laser scanner motor rotation control
Imaging lenses
BD PCB
Image processor
PCB
CPU PCB
5-1