Image Reading Section: Black Streaks Or Bands - Konica Minolta Di1611 Service Manual

TROUBLESHOOTING
4.4.5

Image Reading Section: Black streaks or bands

Step
1 Original Glass is dirty, scratchy, worn, or damaged.
2 Shading sheet reading portion (the portion on the
backside of the Original Glass to which Original
Width Scale is affixed) is dirty.
3 Scanner mirrors are dirty, scratchy, or damaged.
4 Exposure Lamp (LA2) is dirty.
5 CCD Unit lens and CCD surface are dirty or
scratchy.
<Check Procedure>
Remove lens cover to check for possible contami-
nation.
6 CCD Board (PWB-J) connector is loose.
7 Control Board (PWB-C/C) connector is loose.
Di1611/Di2011 FIELD SERVICE Ver.1.0 Mar. 2004
<Typical Faulty Images>
4011T017AA
Check
3-46
4011T023AA
Result Action
YES • Clean or change.
YES • Clean.
YES • Clean or change.
YES • Clean or change.
YES • Clean or change.
YES • Reconnect.
YES • Reconnect.
NO • Change CCD Unit.
• Change Control
Board (PWB-C/C).