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Laser Control System; Overview; Controls - Canon MF8580Cdw Service Manual

Mf8500/mf8200 series
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Also See for MF8580Cdw 
Manual - 750 pages
User manual - 750 pages
Getting started - 292 pages

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Technical Overview > Laser Control System > Controls > Failure detection

Laser Control System

Overview

The Laser Scanner system is to form a static latent image on the photosensitive drum based
on the video signal sent from the Main Controller.
The Laser Scanner Unit is composed of the laser driver, the Scanner Motor Unit and other
components, which are controlled based on signals input by the DC Controller.
The figure below shows the Laser Scanner Unit schematically.
Scanning Mirror
Scanning Motor
Photosensitive Drum
(Y)
Photosensitive Drum
(M)
Photosensitive Drum
(C)
Photosensitive Drum
(K)
DC Controller
Main Controller
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Technical Overview > Laser Control System > Controls > Failure detection
Laser Driver
BD Sensor
F-2-14

Controls

■ Failure detection
1. Scanner Motor failures
• The rotation does not reach the pre-defined value after a certain time elapsed from the
Scanner Motor actuated.
• The rotation failed to meet the tolerable range consecutively within a certain time during the
Scanner Motor in drive.
Error Code:
E110-0000
2. BD failures
• When out-of-range BD cycle is detected during printing.
2-15
2-15

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