2P7/2R0/3PN
1-4-26
(6) Black streaks are printed vertically.
(7) Streaks are printed horizontally.
(8) Spots are printed.
Print example Causes Check procedures/corrective measures
Dirty or flawed drum. Perform the drum surface refreshing operation.
Flawed drum. Replace the drum unit (see page 1-5-17).
Deformed or worn cleaning
blade in the drum unit.
Replace the drum unit (see page 1-5-17).
Defective transfer roller. Replace the transfer roller unit (see page 1-5-21).
Defective chager roller. Replace the chager roller unit (see page 1-5-20).
Defective developer roller. Replace the developer unit (see page 1-5-14).
Print example Causes Check procedures/corrective measures
Dirty or flawed drum. Perform the drum surface refreshing operation.
Flawed drum. Replace the drum unit (see page 1-5-17).
Dirty developer section. Clean any part contaminated with toner in the developer
section.
Poor contact of grounding ter-
minal of drum unit.
Check the installation of the drum unit. If it operates incor-
rectly, replace it (see page 1-5-17).
The beam detection error of a
laser scanner unit
Replace the laser scanner unit
(see page 1-5-23).
Print example Causes Check procedures/corrective measures
Dirty or flawed drum. Perform the drum surface refreshing operation.
Flawed drum. Replace the drum unit (see page 1-5-17).
Deformed or worn cleaning
blade in the drum unit.
Replace the drum unit (see page 1-5-17).
Flawed developer roller. Replace the developer unit (see page 1-5-14).
Dirty heat roller and press
roller.
Clean the heat roller and press roller.
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