2K3/2L3
1-4-23
(3) Image is too light.
(4) The background is colored.
(5) White streaks are printed vertically.
Print example Causes Check procedures/corrective measures
Defective
transfer
charger out-
put.
Defective connector cable
or poor contact in the con-
nector.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
High voltage PWB and engine PWB (YC10)
Defective high voltage
PWB.
Replace the high voltage PWB
(see page 1-5-36).
Defective engine PWB. Replace the engine PWB (see page 1-5-34).
Insufficient toner. If the display shows the message requesting
toner replenishment, replace the container.
Deteriorated toner. Perform the drum refresh operation.
Print example Causes Check procedures/corrective measures
Defective
main
charger out-
put.
Defective connector cable
or poor contact in the con-
nector.
Reinsert the connector. Also check for conti-
nuity within the connector cable. If none,
replace the cable.
High voltage PWB and engine PWB (YC10)
Defective high voltage
PWB.
Replace the high voltage PWB
(see page 1-5-36).
Defective engine PWB. Replace the engine PWB (see page 1-5-34).
Deteriorated toner. Perform the drum refresh operation.
Print example Causes Check procedures/corrective measures
Foreign matter in the devel-
oper unit.
Check if the magnetic brush is formed uniformly. Replace
the developer unit if any foreign matter (see page 1-5-16).
Dirty shading plate. Clean the shading plate.
Adhesion of soiling to transfer
roller.
Clean the transfer roller. Replace the transfer roller if it is
extremely dirty (see page 1-5-20).
Dirty LSU dust shield glass. Perform the LSU dust shield glass cleaning.
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