COPYRIGHT © 2001 CANON INC.
2000 2000 2000 2000
CANON iR5000i/iR6000i REV.0 JUNE 2001
CHAPTER 3 LASER EXPOSURE SYSTEM
3-2 P
T03-101-02 List of Components
F03-101-01 External View
The laser exposure system consists of the following major components:
The machine uses a small-diameter, 12-facet polygon mirror, a lens construction
possesing a large angle of radiation, and a single-beam laser, all with considerations to high
speed, low power, and low noise operation.
Components
Laser semiconductor
Laser scanner motor (M15)
Polygon mirror
BD mirror/BD PCB
Laser driver PCB
DC controller PCB
Description
Visible laser light (aboxut 660 nm), 1 beam
DC motor, 2-speed control
12-faceted
Detects a laser beam.
Controls laser activation.
Controls laser scanner motor rotation.
Collimator lens
Imaging lens 3
Cylindrical lens
BD mirror
12-facet
polygon mirror
Laser unit
Laser mirror 4
Imaging lens 2
Imaging lens 1
Laser mirror 2
Laser mirror 3
Laser mirror 1
Photosensitive drum
BD PCB