CHAPTER 3 LASER EXPOSURE SYSTEM

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:

Laser unit

Cylindrical lens

Polygon mirror (6-faceted)

Laser scanner motor

BD mirror

 

 

Collimating lens

 

BD PCB

 

Laser mirror

Photosensitive drum

 

 

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

3-2 P

COPYRIGHT © 2001 CANON INC.

CANON iR2200/iR2800/iR3300 REV.0 MAR. 2001

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Canon IR3300, IR2800, IR2200 manual F03-101-01, T03-101-02