Service manual

2DA/2DB
1-5-29
Causes Check procedures/corrective measures
1. Dirty contact glass.
2. Dirty or flawed drum.
3. Dirty scanner mirror.
4. Dirty main charger wire.
(6) A black line appears
longitudinally.
Causes
1. Dirty contact glass.
2. Dirty or flawed drum.
3. Dirty scanner mirror.
4. Dirty main charger wire.
Clean the contact glass.
Clean the drum or, if it is flawed, replace the drum unit
(see page 1-6-38).
Clean the scanner mirror.
Clean the main charger wire or, if it is extremely dirty, replace the
main chager unit (see page 1-6-40).
Causes Check procedures/corrective measures
1. Dirty main charger wire.
2. Defective exposure lamp.
Causes Check procedures/corrective measures
1. Dirty contact glass.
2. Dirty or flawed drum.
3. Dirty scanner mirror.
4. Dirty shading plate.
5. Leaking main charger housing.
(7) A black line ap-
pears laterally.
Causes
1. Dirty contact glass.
2. Dirty or flawed drum.
3. Dirty scanner mirror.
4. Dirty shading plate.
5. Leaking main charger housing.
(8) One side of the
copy image is
darker than the
other.
Causes
1. Dirty main charger wire.
2. Defective exposure lamp.
Clean the contact glass.
Clean the drum or, if it is flawed, replace it (see page 1-6-38).
Clean the scanner mirror.
Clean the shading plate.
Clean the main charger wire, grid and shield.
Clean the main charger wire or, if it is extremely dirty, replace the
main chager unit (see page 1-6-40).
Check if the exposure lamp light is distributed evenly. If not, replace
the exposure lamp and inverter PCB.