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Chapter 8
8.3.5.6 Detecting/Correcting Changes in the Reproduction Ratio in Main Scanning
Direction
The Bk pattern is used as the reference. The machine copies the center line of the Bk image correction pattern
(rear) and the center line of the individual image position correction patterns (rear), and identifies the difference
between the two as the change in the reproduction ratio in main scanning direction.
When the machine detects any change, it corrects the timing at which the video signals are transferred to the
laser unit.
(rear)
Bk
C
M
Y
F-8-22
8-21
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