17. Image quality problem
Field Service Ver. 1.0 Apr. 2005
162
ineo 161
ineo 210
T
roubleshooting
17.2.8
Image Reading Section: Uneven image density
A. Typical Faulty Images
B. Troubleshooting Procedure
4011T525AA
Step
Check
Result
Action
1
Original Glass is dirty, scratchy, worn, or damaged.
YES
• Clean or change.
2
Shading sheet reading portion (the portion on the back-
side of the Original Glass to which Original Width Scale is
affixed) is dirty.
YES
• Clean.
3
Scanner mirrors are dirty, scratchy, or damaged.
YES
• Clean or change.
4
Exposure Lamp (LA2) is dirty.
YES
• Clean or change.
5
CCD Unit lens and CCD surface are dirty or scratchy.
<Check Procedure>
Remove lens cover to check for possible contamination.
YES
• Clean or change.
6
Exposure Lamp is abnormally lit (flickers or abnormally
dark) when the Power Switch is turned ON.
NO
• Go to step 8.
7
Inverter Board (PU2) connector CN1PU2 is loose.
YES
• Reconnect.
NO
• Change Exposure
Lamp (LA2).
8
CCD Board (PWB-J) connector is loose.
YES
• Reconnect.
9
Control Board (PWB-C/C) connector is loose.
YES
• Reconnect.
NO
• Change CCD Unit.
• Change Control Board
(PWB-C/C).