Laser Exposure System; Overview - Canon imageRUNNER ADVANCE C2030 Service Manual

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Process/Operation > Laser Exposure System > Overview > Overview

Laser Exposure System

Overview

■ Overview
Laser exposure system forms the electrostatic latent image on the photosensitive drum by the
laser exposure.
This system is composed of the laser assembly and the scanner motor assembly that are
unified as the laser scanner unit.
In this machine, 1-polygon 4-laser method is adopted for the purpose of downsizing.
Photosensitive Drum
Scanner Motor
Driver
DC Controller
Main Controller
2 Process/Operation > Laser Exposure System > Overview > Overview
C/Bk Laser Driver
Y/M Laser Driver
Scanner Mirror
Relay PCB
[ 8]
[2]
[4]
[ 3]
[1]
[7]
[10]
[1] C/Bk Laser Driver
[2] C/Bk video signal
[3] C/Bk laser control signal
[4] Scanner motor control signal
[5] Y/M video signal
[6] Y/M laser control signal
[7] BD Circuit
F-2-43
Main Controller
DC Controller
[ 9]
[6]
[ 5]
[ 12]
[13]
[11]
[8] BD signal
[9] Y/M Laser Driver
[10] Imaging Lens
[11] Reflection Mirror
[12] Polygon Mirrors
[13] Scanner Motor Driver
2-32
[ 10]
[ 11]
F-2-44
2-32