Canon imageRUNNER ADVANCE C5051 Series Service Manual page 104

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Technology■>■Image■Formation■System■>■Controls■>■Image■stabilization■control
● ARCDAT■control ■
This■control■obtains■ideal■gradation■characteristics■while■reducing■down■time
Execution■timing
1)■When■replacing■a■drum■unit■or■developing■assembly
2)■At■post-rotation■every■time■the■total■reaches■25■prints■(when■continuously■making■prints,■
printing■is■interrupted■for■every■100■prints■to■execute■this■control)■
Control■details
1)■DC■Controller■creates■the■patch■pattern■of■each■color■(Y,■M,■C,■Bk)■on■the■ITB.
(3■patterns■per■each■color,■total■12■patterns)
2)■DC■Controller■measures■the■patch■pattern■with■the■Patch■Sensor■(center)■(UN49)■and■
returns■the■result■to■the■Main■Controller■2.
3)■The■Main■Controller■2■compares■the■actual■measured■data■with■the■backed■up■standard■
data■for■ARCDAT■control.■Difference■after■comparison■is■reflected■to■D-half■result■as■offset■
value.
2 Technology■>■Image■Formation■System■>■Controls■>■Image■stabilization■control
Laser scanner unit 1/2
Video data
DC controller(UN1)
Density data
ARCDAT Control
Main controller2
2-68
ITB
Patch sensor
(center)
(UN49)
Patch image date
F-2-102
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