16. Image quality problem
Field Service Ver. 1.0 Apr. 2007
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T
roubleshooting
16.2.19
Printer section: Void areas
A. Typical faulty images
B. Troubleshooting procedure
A09AF3C533DA
Step
Check
Result
Action
1
Foreign matter is present along the paper path.
YES
• Remove foreign matter.
2
Paper dust plugs up the paper dust remover.
YES
• Clean or change.
3
PC drum charge corona, grid mesh, and comb electrode
are loose.
YES
• Reinstall.
4
PC drum charge corona contact is dirty, scratchy,
deformed, worn, or damaged.
YES
• Clean, correct, or
change.
5
Developing roller is dirty, scratchy, deformed, worn, or
damaged.
YES
• Clean or change.
6
Toner is even on sleeve/magnet roller.
NO
• Adjust Db.
For details, see
ADJUSTING/SETTING.
7
Developer is not even in the developer mixing chamber of
IU.
YES
• Even out developer in
the developer mixing
chamber.
8
DB of IU is plugged with foreign matter
(such as paper dust).
YES
• Remove foreign matter.
9
Image transfer roller is dirty, scratchy, deformed, worn, or
damaged.
YES
• Clean, correct, or
change.
10
Image transfer roller assy is installed correctly.
NO
• Reinstall.
11
Charge neutralizing plate is dirty, scratchy, folded, or bent.
YES
• Clean, correct, or
change.
12
Fusing roller is dirty, scratchy, deformed, or worn.
YES
• Clean or change.
NO
• Change IU.
Содержание bizhub 163
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