COPYRIGHT © 2001 CANON INC.
2000 2000 2000 2000
CANON iR2200/iR2800/iR3300 REV.0 MAR. 2001
CHAPTER 3 LASER EXPOSURE SYSTEM
3-2 P
F03-101-01 shows the major components for the laser exposure system; the machine’s la-
ser scanning is performed by means of a 6-facet polygon mirror and a single-beam laser unit:
F03-101-01
Component
Description
Laser semiconductor
Infrared laser light (785 nm), single-beam
Laser scanner motor (M10)
DC brush-less motor, constant speed control
Polygon mirror
6-faceted
BD mirror/BD PCB
Laser beam detection
Laser driver PCB
Laser activation control
DC controller PCB
Laser scanner motor rotation control
T03-101-02
Cylindrical lens
Laser scanner motor
Polygon mirror
(6-faceted)
Collimating lens
BD PCB
Photosensitive drum
Laser mirror
BD mirror
Laser unit
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