A Black Line Appears Longitudinally; A Black Line Appears Laterally; One Side Of The Copy Image Is Darker Than The Other; Black Dots Appear On The Image - Kyocera KM-2540 Service Manual

(6) A black line appears longitudinally.

Copy example
Dirty platen.
Dirty or flawed drum.
Deformed or worn cleaning blade.
Dirty scanner mirror.
Dirty main charger wire.

(7) A black line appears laterally.

Copy example
Flawed drum.
Dirty developing section.
Leaking main charger housing.
Leaking separation electrode.

(8) One side of the copy image is darker than the other.

Copy example
Dirty main charger wire.
Defective exposure lamp.

(9) Black dots appear on the image.

Copy example
Dirty or flawed drum.
Dirty platen.
Deformed or worn cleaning blade.
Dirty drum separation claws.
Dirty the heat roller separation claws.
Causes
Causes
Causes
Causes
Check procedures/corrective measures
Clean the platen.
Perform the drum refresh operation. If the drum is flawed,
replace the drum unit (see page 1-5-35).
Replace the drum unit (see page 1-5-35).
Clean the scanner mirror.
Clean the wire or, if it is extremely dirty, replace it (see page
1-5-37).
Check procedures/corrective measures
Replace the drum unit (see page 1-5-35).
Clean any part contaminated with toner in the developing
section.
Clean the main charger wire and grid.
Clean the separation electrode.
Check procedures/corrective measures
Clean the wire or, if it is extremely dirty, replace it (see page
1-5-37).
Check if the exposure lamp light is distributed evenly. If not,
replace the exposure lamp (see page 1-5-15).
Check procedures/corrective measures
Perform the drum refresh operation. If the drum is flawed,
replace the drum unit (see page 1-5-35).
Clean the platen.
Replace the drum unit (see page 1-5-35).
Clean the drum separation claws.
Clean the heat roller separation claws.
2JB/2JC
1-4-37