Konica Minolta magicolor 3730DN User Manual page 147

Symptom
There are
toner
smudges or
residual
images.
There are
toner
smudges on
the back side
of the page
(whether or
not it has
been
duplexed).
Abnormal
areas (white,
black, or
color) appear
in a regular
pattern.
7-32
Cause
One or more of the
toner cartridges may
be defective or
installed incorrectly.
The media path is
dirty with toner.
One or more of the
toner cartridges may
be defective.
The laser lens is dirty. Clean the laser lens.
A toner cartridges
may be defective.
Solving Problems with Printing Quality
Solution
Remove the toner cartridges and
check them for damage. If one is dam-
aged, replace it.
Print several blank sheets and the
excess toner should disappear.
Remove the toner cartridges and
check it for damage. If it is damaged,
replace it.
Remove the toner cartridges with the
color causing the abnormal image.
Replace it with a new toner cartridges.