2L6/2N6/2N5/2N4
1-4-270
(12) Part of Image is missing.
(13) Image is out of focus.
Print example Cause of trouble
1. Flawed or dirty drum unit.
2. Deformed or dirty primary transfer roller on its surface.
Defective part Check description Corrective Action
1
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).
2
Primary transfer
roller (intermediate
transfer belt unit)
Check if the primary transfer
roller is deformed or contaimi-
nated on its surface.
If the intermediate transfer belt unit is
deformed or contaminated, replace the inter-
mediate transfer belt unit.
(see page 1-5-62)
Print example Cause of trouble
1. Drum condensation.
2. Dirty LSU slit glass.
Defective part Check description Corrective Action
1
Drum unit Check that the surface of the
drum has dew condensation.
Execute drum refreshing.
System Menu > Adjustment/Maintenance
2
LSU Check whether the LSU slit
glass is contaminated in its
entirety.
1. If the LSU slit glass is dirty, perform laser
scanner cleaning.
2. Replace the LSU. (Perform U119)
(see page 1-5-43)
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