Solution; Image Reading System: Blank Or Black Prints; Image Reading System: Low Image Density - Konica Minolta bizhub 160f Service Manual

22. Image quality problem

22.4 Solution

22.4.1

Image Reading System: Blank or Black Prints

A. Troubleshooting Procedures
Step
1 Are there no bent connector pins on the cables
connecting the control boards, are all connec-
tors correctly plugged in, and are no cables
broken?
2 Does the Exposure Lamp light up?
22.4.2

Image Reading System: Low Image Density

A. Troubleshooting Procedures
Step
1 Is the surface of the Original Glass dirty?
2 Are the Shading Sheet or back surface of the
Original Glass dirty?
3 Are the mirror or lens dirty?
4 Is the Exposure Lamp dirty?
5 Are there no bent connector pins on the cables
connecting the control boards, are all connec-
tors correctly plugged in, and are no cables
broken?
258
<Sample of Image Quality Problem>
4011T035AA
Check
<Sample of Image Quality Problem>
Check
Confidential – for internal use only, do not distribute
Field Service Ver. 1.0 Apr. 2005
4011T036AA
Result Action
NO Correctly plug in the connectors.
Replace connection cables.
NO Replace the Scanner Assy.
4011T003AA
Result Action
YES Clean it.
YES Clean them.
YES Clean them.
Replace the Scanner Assy.
YES Clean it.
Replace the Scanner Assy.
NO Correctly plug in the connectors.
Replace connection cables.