Image Reading Section: Foggy Background Or Rough Image - Develop INEO 161 Service Manual

17. Image quality problem
17.2.4

Image Reading Section: Foggy background or rough image

A. Typical Faulty Images
B. Troubleshooting Procedure
Step
1 Original Glass is dirty.
2 Scanner mirrors are dirty.
3 Exposure Lamp (LA2) is dirty.
CCD Unit lens and CCD surface are dirty.
4 <Check Procedure>
Remove lens cover to check for possible contamination.
Exposure Lamp is abnormally lit (flickers or abnormally
5
dark) when the Start key is pressed.
6 Inverter Board (copier: PU2) connector is loose.
7 CCD Board (copier: PWB-J) connector is loose.
158
Check
Field Service Ver. 1.0 Apr. 2005
4011T004AA
Result
YES • Clean.
YES • Clean.
YES • Clean.
YES • Clean.
NO • Go to step 7.
YES • Reconnect.
• Change Exposure
NO
Lamp (LA2).
YES • Reconnect.
• Change Inverter Board
(PU2).
NO
• Change Control Board
(copier: PWB-C).
Action