Field Service Ver. 1.0 Jun. 2008 19. Image quality problem
327
Troubleshooting
19.3.6 Scanner system: incorrect color image registration, sync shift (lines in
main scan direction)
A. Typical faulty images
B. Troubleshooting procedure
A02EF4C512DA
AA
AA
Step Section Check item Result Action
1 Original Original does not lie flat. YES Change original.
2
ADF ADF does not lie flat. YES Change ADF if it is deformed or
hinges are broken.
3 Scanner rails Foreign matter on rails. YES Clean and apply lubricant.
4
Scanner drive
wires
Wire kinks or is damaged. YES Correct or change.
5
Exposure unit Exposure unit moves smoothly. NO Adjust the scanner motor timing
belt.
o Change scanner motor.
o Change BCRUB.
6
The problem has been eliminated
through the checks of steps up to 5.
NO Change exposure unit.
d-Color MF201
Y109660-1 Sevice Manual
d-Color MF201
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