Scanner System: Uneven Pitch - Konica Minolta magicolor 2590MF Service Manual

17. Miscellaneous errors
17.2.7

Scanner system: Uneven pitch

A. Typical faulty images
B. Troubleshooting procedure
Step Section
1 Scanner motor Scanner motor drive is being transmitted.
2 Scanner unit
3 Scanner rails
PWBs and con-
4
nection cables
5
Image process-
ing board
6
262
Check Item
Exposure lamp harness is not hooked.
Scanner rails are scratched or dirty.
Connectors are securely connected with no
bent pins and no breaks in the connection
cables.
Connectors on the image processing board
are connected properly.
The problem has been eliminated after per-
forming step 5.
Field Service Ver. 1.0 Aug. 2007
4040F4C500DA
Result
Correct or change drive
NO
coupling mechanism.
NO Correct.
NO Clean or Change.
Reconnect.
NO Replace the connection
cable.
NO Reconnect.
Change image processing
NO
board.
Action