Canon IMAGERUNNER ADVANCE C5030, Руководство по обслуживанию, Страница: 76 / 1455

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Technology■>■Laser■Exposure■System■>■Various■Controls■>■Image■tilt■correction■control
Technology■>■Laser■Exposure■System■>■Various■Controls■>■Image■tilt■correction■control
For color For color
Close Close
Close
Open
Open Open
Laser
Shutter
Shutter Cam
(PS29)
Laser shutter position
Relation of shutter lever and cam
Sensor lever position
For Bk
For Bk
Shutter
Lever
Sensor
Lever
Related■error■code■
E0112-0000:■Laser■shutter■motor■error■(not■in■home■position)
If■the■Laser■Shutter■Sensor■(PS29)■is■not■in■the■home■position■at■initial■operation.
E0112-0001:■Laser■shutter■motor■error■(operation■failure■at■shutter■close)
If■the■Laser■Shutter■Sensor■(PS29)■is■not■in■the■home■position■after■approx.■10■sec■from■the■
shutter■close■operation.■
E0112-0002:■Laser■shutter■motor■error■(operation■failure■at■shutter■open)
If■the■Laser■Shutter■Sensor■(PS29)■is■still■in■the■home■position■after■approx.■10■sec■from■the■
shutter■open■operation.
F-2-58
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Image■tilt■correction■control
■ ● Purpose
This■is■to■prevent■the■gap■of■laser■emission.
■ ● Execution timing
At■power-ON,■per■total■360■sheets■printing
■ ● Execution time
Approx.■3■sec
■ ● Control detail
1)■DC■Controller■creates■the■patch■pattern■of■each■color■on■the■ITB.
2)■DC■Controller■compares■the■patch■pattern■with■the■standard■value■backed■up■in■the■
DC■Controller■by■reading■this■patch■pattern■at■the■Patch■Sensor■and■detects■the■color■
displacement■amount.
3)■Based■on■the■foregoing■detection■result,■the■laser■emission■position■(tilt■degree)■of■Laser■
Scanner■Unit■is■changed.