Konica Minolta magicolor 1690MF User Manual page 247

Symptom
Thin white
horizontal
lines appear
at intervals
on images.
Colors look
drastically
wrong.
Colors are
not register-
ing properly;
colors are
mixed or
have
page-to-pag
e variation.
The color
has a poor
reproduction
or has poor
color density.
9-36
Cause
Toner is not evenly
adhering to the
media.
One or more of the
toner cartridges may
be defective.
The scanner unit or
front cover is opened
during the calibration.
Gradations are not
adjusted correctly.
The imaging car-
tridges is not correctly
seated.
One or more of the
toner cartridges may
be defective.
The media is moist
from humidity.
The imaging cartridge
may be defective.
Solving Problems with Printing Quality
Solution
Perform IMAGE REFRESH. (Set
MACHINE SETTING/IMAGE
in the
REFRESH UTILITY
.)
YES
If the problem persists, contact your
vendor or authorized service provider.
Remove the toner cartridges and verify
that the toner is distributed evenly on
each cartridge roller, and reinstall the
toner cartridges.
Set
MACHINE SETTING/CALI-
in the
BRATION UTILITY
, and then perform the AIDC color
ON
calibration. For details, refer to
"MACHINE SETTING Menu" on
page 2-22.
Remove the imaging cartridge and
check for damage. If it is damaged,
replace it.
Remove the toner cartridges and
check for damage. If it is damaged,
replace it.
Remove the moist media and replace it
with new, dry media.
Remove the imaging cartridge and
check for damage. If it is damaged,
replace it.
menu to
menu to