Canon imageRUNNER ADVANCE C5255 Series Service Manual page 108

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 Technology > Image Formation System > Controls > Image stabilization control
ITB
Patch sensor
(center)
(UN49)
Patch image date
F-2-101
Measurement data (SIN) transmission
Comparison of measurement data (SIN)
INT
40
α
20
SIN
10 40
Offset value (alpha) determination
Data output(D-CON)
(i.e., difference between SIN and INT)
Current gradation
100
characteristics
60 Gradation characteristics
after correction
40
α
20
40
Data output(V-CON)
2-70
Start
DC controller(UN1)
Patch pattern formation
Patch sensor(center)(UN49)
Patch scanning
DC controller(UN1)
Main controller2
and reference data (INT)
Main controller2
Main controller2
Inclusion of result in
D-half correction table
F-2-102
2-70