Konica Minolta bizhub C203 Service Manual page 588

Field Service Ver. 1.0 Jul. 2007
18.3.2 Scanner system: white lines in main scan direction, white bands in main
scan direction, colored lines in main scan direction, and colored bands in
main scan direction
A. Typical faulty images
White lines in main
scan direction
B. Troubleshooting procedure
Step Section
1 Original
2 ADF
Original glass
3
Machine → Scan
Area → Image
4 Position: Top
Edge
(Service Mode)
5
White bands in main
scan direction
Check item
Original is damaged or dirty.
Original pad is dirty.
Original glass is dirty.
The adjustment value for [Image
Position: Leading Edge] falls within
the specified range.
The problem has been eliminated
through the checks of steps up to 4.
18. Image quality problem
Color lines in main Color bands in main
scan direction scan direction
Result
YES Change original.
YES Clean.
Wipe the surface clean with a
YES
soft cloth.
Readjust.
NO
Change scanner assy.
NO
Change CCD unit.
A02EF4C508DA
Action
543