7-15
Troubleshooting > Image formation problems
[CONFIDENTIAL]
(1-12)Image is partly missing.
Print example Cause of trouble
1. Flawed or dirty drum unit.
1 Deformed or dirty transfer roller on its surface.
Defective part Check description Corrective Action
1
Paper
1. Check that the paper has mois-
ture absorbed.
2. Check that the paper has stored
in a humid place.
If the paper is damp, replace.Choose a dry place to
store paper.
2
Drum unit Check the print image on paper has
a problem at an interval equivalent
to the circumference of the drum
(94mm)
If the print image on paper has a problem at an
interval equivalent to the circumference of the drum,
exexcute drum refreshing
(System Menu > Adjustment/Maintenance).
3
Transfer roller unit Check if the transfer roller is
deformed or contaiminated on its
surface.
If the transfer roller unit is deformed or contami-
nated, replace the transfer roller unit.