2PV/2PW
1-4-31
(6) The background is colored.
(7) White streaks are printed vertically.
(8) Black streaks are printed vertically.
Print example Causes Check procedures/corrective measures
Defective color calibration. Perform the color calibration (Refer to opera-
tion guide).
Defective
developing
bias output.
Defective developing unit. Replace the developing unit for the color that
causes an error (see page 1-5-19).
Defective high voltage
PWB.
Replace the high voltage PWB
(see page 1-5-35).
Defective engine PWB. Replace the engine PWB (see page 1-5-27).
Defective
drum sur-
face charg-
ing.
Defective drum unit. Replace the drum unit (see page 1-5-21).
Defective high voltage
PWB.
Replace the high voltage PWB
(see page 1-5-35).
Defective engine PWB. Replace the engine PWB (see page 1-5-27).
Print example Causes Check procedures/corrective measures
Foreign object in one of the
developing units.
Replace the developing unit for the color that causes an
error (see page 1-5-19).
Adhesion of soiling to transfer
belt.
Clean the transfer belt. Replace the intermediate transfer
unit if it is extremely dirty (see page 1-5-22).
Adhesion of soiling to transfer
roller.
Clean the transfer roller. Replace the transfer roller if it is
extremely dirty (see page 1-5-25).
Dirty LSU dust shield glass. Perform the LSU dust shield glass cleaning.
Print example Causes Check procedures/corrective measures
Dirty contact glass. Clean the contact glass.
Dirty slit glass. Clean the slit glass.
Dirty or flawed drum. Perform the drum surface refreshing (see page 1-3-93).
Flawed drum. Replace the drum unit (see page 1-5-21).
Deformed or worn cleaning
blade in the drum unit.
Replace the drum unit (see page 1-5-21).
Worn primary transfer belt. Replace the intermediate transfer unit (see page 1-5-22).
Defective transfer roller. Replace the transfer roller (see page 1-5-25).
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