2NM/2NX/2NY/2NZ/2P0/2P6
1-4-85
(9) Uneven density horizontally.
Print example
Cause of trouble
1. Defective laser scanner unit.
2. Improper charging roller rotation
3. Improper contact on the developer unit terminals
Defective part
Check description
Corrective Action
1
LSU
Check the emission of laser is
even.
Replace the LSU. (see page 1-5-25)
2
Charging roller
Check if the charing roller is
improperly mounted.
1. Fix the charging roller properly.
2. Replace the charging roller.
(see page 1-5-36)
3
Developer unit
Check If the connecting termi-
nals of the developer bias is con-
taminated by toner.
1. If the connecting terminals is dirty.
2. Replace the developer unit.
(see page 1-5-30)
4
Transfer roller unit.
1. Check if the transfer roller is
contaminated on its surface
or damaged.
1. Replace the transfer roller unit.
2. Check if the connecting ter-
minals of high voltage are
dirty or deformed.
1. If the connector or terminals are dirty,
clean.If the connecting terminals are
deformed, correct for a proper conduction.
2. Replace the high voltage PWB.
5
Fuser unit
Check that the roller, its driving
unit, or the fusing pressure
release mechanism is deformed,
abraded, or damaged.
If the roller, its driving unit, or the fusing pres-
sure release mechanism is deformed,
abraded, or damaged, replace the fuser unit.
Summary of Contents for P-4030 MFP
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Page 19: ...2NM 2NX 2NY 2NZ 2P0 2P6 5 Installation Guide PF 320 Paper Feeder ...
Page 55: ...2NM 2NX 2NY 2NZ 2P0 2P6 1 2 24 This page is intentionally left blank ...
Page 386: ...2NM 2NX 2NY 2NZ 2P0 2P6 1 5 100 This page is intentionally left blank ...
Page 486: ...Installation Guide PF 320 Paper Feeder Installation Guide ...
Page 487: ...PF 320 㾌㙼 㾌㙼 PF 320 PF 320 PF 320 㪧㪝㪄㪊㪉㪇 㪧㪝㪄㪊㪉㪇䈱 㪧㪝㪄㪊㪉㪇G 㾌 㾌 PF 320 PF 320 ...