Kyocera TASKalfa 8002i

2WA/2NJ/2RK
7-66
(5-3) Black spots appear on the image
Step Check description Assumed cause Measures Reference
1 Checking the drum The drum surface is dirty
or has some scratches.
Execute the drum refresh. If
not repaired, replace the
drum unit.
Detaching
and Reat-
taching the
drum unit
2 Checking the main charger
unit
The main charger roller
surface is dirty.
Replace the main charger
roller unit.
Detaching
and reat-
taching the
main char-
ger roller
unit
3 Checking the settings The developer bias is easy
to leak since the main unit
is installed in the low alti-
tude environment.
Set the proper altitude at
U140 [Altitude Adjustment].
Executing
U140
4 Executing U140 Developer bias leaks. Execute [AC Calib] at U140. Executing
U140
5 Checking the developer
unit
The developer roller or the
magnet roller is dirty, or is
faulty.
Clean the developer roller.
Or, replace the developer unit
if not repaired after cleaning.
Detaching
and Reat-
taching the
developer
unit