Konica Minolta magicolor 1690MF User Manual page 245

Symptom
There is
insufficient
fusing or the
image
comes off
when
rubbed.
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).
9-34
Cause
The media is moist
from humidity.
Unsupported media
(wrong size, thick-
ness, type, etc.) is
being used.
Media type is set
incorrectly.
One or more of the
toner cartridges are
defective or installed
incorrectly.
The media path is
dirty with toner.
One or more of the
toner cartridges are
defective.
The imaging cartridge
may be defective.
Solving Problems with Printing Quality
Solution
Remove the moist media and replace it
with new, dry media.
Use KONICA MINOLTA-approved
media. See "Print Media" on page 3-2.
Also, refer to http://printer. konicami-
nolta.com for a complete list of cur-
rently approved media.
When printing envelopes, labels, letter-
head, postcards or thick stock, specify
the appropriate media type in the
printer driver.
Remove the toner cartridges and
check for damage. If it is damaged,
replace it.
Print several blank sheets and the
excess toner should disappear.
Remove the toner cartridges and
check for damage. If it is damaged,
replace it.
Remove the imaging cartridge and
check for damage. If it is damaged,
replace it.