Kyocera TASKalfa 620 - A Black Line Appears Longitudinally; A Black Line Appears Laterally; One Side of the Copy Image Is Darker than the Other

2KN/2KP
1-4-54
(6) A black line appears longitudinally.
(7) A black line appears laterally.
(8) One side of the copy image is darker than the other.
Copy example Causes Check procedures/corrective measures
Dirty or flawed drum. Clean the drum. If the drum is flawed, replace the drum
(see page 1-5-44).
Deformed or worn cleaning blade. Replace the cleaning blade.
Dirty contact glass. Clean the contact glass.
Dirty scanner mirror. Clean the scanner mirror.
Dirty upper and lower slit glass. Clean the upper and lower slit glass.
Dirty main charger wire. Clean the main charger wire or, if it is extremely dirty,
replace it.
Dirty or flawed press roller. Clean the press roller.
Copy example Causes Check procedures/corrective measures
Flawed drum. Replace the drum (see page 1-5-44).
Dirty developing section. Clean any part contaminated with toner in the developing
section.
Leaking main charger housing. Clean the main charger wire and grid.
Contact fail-
ure of
developing
bias termi-
nal.
Poor installation of high
voltage PWB.
Check the installation state of the high voltage PWB.
Copy example Causes Check procedures/corrective measures
Dirty main charger wire. Clean the wire or, if it is extremely dirty, replace it (see page
1-5-27).
Defective exposure lamp. Check if the exposure lamp light is distributed evenly. If not,
replace the exposure lamp (see page 1-5-28).
Defective CIS. Check if the CIS light is distributed evenly.
If not, replace the CIS (see page 1-5-79).