Canon iR1600 Series Service Manual page 148

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
COPYRIGHT© 2002 CANON INC.
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
Laser unit
(laser driver PCB)
Description
2000 CANON iR1600/iR2000/iR1610/iR2010 SERIES REV.0 MAR. 2002
Cylindrical lens
6-facet mirror
Scanner motor
Imaging lens
BD mirror
No. 2 reflecting mirror