Canon iR1600 Service Manual page 114

CHAPTER 4 LASER EXPOSURE SYSTEM
The following shows the major components of the laser exposure system and its func-
tions; the machine's laser scanning method is based on a 6-facet polygon mirror and a single
beam:
No. 1 reflecting
mirror
Component
Laser semi-
conductor
Scanner motor
(M102)
Polygon mirror
BD mirror/BD PCB
Laser driver PCB
DC controller PCB
4-2
BD PCB
drum
F04-101-01
Infrared light (about 785 nm), 1-beam
DC brushless motor
6-faceted
Laser beam detection
Laser emission control
Scanner motor rotation control
T04-101-02
COPYRIGHT© 2002 CANON INC.
Laser unit
(laser driver PCB)
Description
2000
Cylindrical lens
6-facet mirror
Scanner motor
Imaging lens
BD mirror
No. 2 reflecting mirror
CANON iR1600/iR2000 REV.1 JAN. 2002