Printer Section: Uneven Image Density - Konica Minolta Bizhub 162 Service Manual

Field Service Ver. 1.0 Apr. 2005
17.2.21

Printer Section: Uneven image density

A. Typical Faulty Images
B. Troubleshooting Procedure
Step
PC Drum ground plate is dirty, scratchy, deformed, worn,
1
or damaged.
PC Drum Charge Corona grid mesh and Comb Electrode
2
are dirty, scratchy, deformed, worn, damaged, or loose.
Image Transfer Roller is dirty, scratchy, deformed, worn, or
3
damaged.
Sleeve/Magnet Roller is dirty, scratchy, deformed, worn, or
4
damaged.
5 Toner is even on Sleeve/Magnet Roller.
Developer is not even in the Developer Mixing Chamber of
6
IU.
Check
17. Image quality problem
4011T525AA
Result Action
• Clean, correct, or
YES
change.
• Clean, correct, or
YES
change.
YES • Clean or change.
YES • Clean or change.
• Adjust Db. For details,
NO see ADJUSTING/SET-
TING.
• Even out developer in
YES the Developer Mixing
Chamber.
• Change IU.
NO • Change Master Board
(PWB-A).
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