Major Components - Canon iR4570 Series Service Manual

Chapter 6

6.1.2 Major Components

iR2270 / iR2870 / iR3570 / iR4570 / iR3530
[1]
Name
[1] Laser unit
[2] Polygon mirror
[3] BD mirror
[4] BD PCB
6.1.3 Construction of the Control System
iR2270 / iR2870 / iR3570 / iR4570 / iR3530
The laser exposure system is primarily controlled by the DC controller PCB.
iR2270/2270F/2870/2870F/2230/2230F/2830
6-2
Laser scanner motor control
Laser shutter control
[3]
[2]
F-6-1
T-6-5
Description
Generates laser light
Scans laser light in main scanning direction.
Reflects laser light in the direction of the BD PCB.
Generates the BD signal.
[4]
0006-5970
0006-5971