Canon ImageRunner iR8500 Series Service Manual page 905

Sub-item
ADJ-X
ADJ-Y
ADJ-S
ADJ-Y-DF
<CCD>
COPIER > ADJUST > ADJ-XY
Adjusting the optical image head position (image read start position in the subscan
direction)
<Setting range> 0 to 2970
Increasing the value by 1 shifts the image read start position 0.1 mm backward.
Horizontal size plate
Copyboard glass
Standard
white plate
Lower
Higher
value
value
Adjusting the CCD read start cell position (image read start position in the main scan
direction)
<Setting range> 0 to 1000
Increasing the value by 1 shifts the image read start position 0.1 mm outward.
Lower value
Higher value
Original
Vertical size plate
Adjusting the optical shading measuring position
<Setting range> 0 to 4
Increasing the value by 1 shifts the shading measuring position 0.1 mm forward.
HP sensor
Vertical
size plate
Standard white plate
Lower value Higher value
Adjusting the main scan position at DF flow read
<Setting range> 0 to 1000
Increasing the value by 1 shifts the image read start position 0.1 mm outward.
Print image
Lower value
Higher value
Feed
direction
Description
Read start position
Copyboard glass
Chapter 17
Level
1
1
1
1
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