Konica Minolta bizhub C360 Service Manual page 773

23. IMAGE QUALITY PROBLEM
23.3.14 Scanner system: uneven density
A. Typical faulty images
B. Troubleshooting procedure
Step Section
1 ADF read
position
2 2nd/3rd mirrors
carriage
3 Scanner motor
4
2.1
718
2.1
Check item
The uneven density occurs when
reading the original from ADF.
Exposure unit is not properly
aligned with 2nd/3rd mirrors car-
riage.
Scanner motor turns smoothly.
The problem has been eliminated
through the checks of steps up to 3.
Field Service Ver. 2.1 Feb. 2012
Result Action
YES Readjust.
YES Perform "Focus positioning of the
scanner and 2nd/3rd mirrors car-
riage" and "Scanner Position
Adjustment."
NO Change belt.
Change scanner motor.
NO Change exposure unit.
Change CCD unit.
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