Black Dots Appear In The Image - Kyocera ECOSYS P2235dn Service Manual

(1-10) Black dots appear in the image

Image sample
Trouble location
1 Drum unit
2 Developer unit
(1-11) Offset occurs
Image sample
Trouble location
1 Drum unit
2 Developer unit
1. Charger roller dirt.
2. Drum unit scratch or dirt.
3. Cleaning blade is damaged or jammed by paper dust.
Check
Check the print image on paper
has a problem in the interval of
the circumference of the drum.
Check if the developer bias
leaks.
Check the print image on the
image in the 40mm interval.
1. Drum unit cleaning failure, scratch or dirt.
2. Developer bias leakage.
Check
Check the print image on paper
has a problem in the interval of
the circumference of the drum.
Check if offsets are observed in
the 40mm interval.
Factor
Replace the drum unit if the drum is scratched.
(see page 4-11)
1. Clean the edge of the developer roller if
leaked.
2. If used at high altitude, set the high altitude
adjustment at service setting of [Adjust-
ment/Maintenance] in [System Menu].
1. Clean the developer roller.
2. Replace the developer unit.
(see page 4-10)
Factor
If the drum unit is dirty with paper duct, toner,
etc., clean it and reattach it. Or, replace. (see
page 4-11)
If the developer unit is dirty with toner, etc.,
clean it and reattach it. Or, replace. (see page
4-10)
7-44
2RV/2RW/2RX/2RY/3RA-1
Measures
Measures