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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