Konica Minolta bizhub C25 - Manual (Page 299)

Solving Problems with Printing Quality 10-38
If the problem is not resolved, even after all of the above have been per-
formed, contact Technical Support with the error information.
Lateral lines
or bands
appear on
image. The machine is not
level. Place the machine on a flat, hard, level
surface.
The media path is
dirty with toner. Print several sheets and the excess
toner should disappear.
One or more of the
toner cartridges may
be defective. Remove the toner cartridges and
check for damage. If it is damaged,
replace it.
One or more of the
imaging units is
defective. Remove the imaging units and check
for damage. If it is damaged, replace
it.
Colors look
drastically
wrong. One or more of the
toner cartridges may
be defective. Remove the toner cartridges and verify
that the toner is distributed evenly on
each cartridge roller, and reinstall the
toner cartridges.
Colors are
not register-
ing properly;
colors are
mixed or
have
page-to-pag
e variation. Gradations are not
adjusted correctly. Set [MACHINE SETTING]/[CALIBRA-
TION] in the [UTILITY] menu to [ON],
and then perform the AIDC color cali-
bration. For details, refer to
“MACHINE SETTING Menu” on
page 2-24.
The front cover is
opened during the
calibration.
One or more of the
toner cartridges may
be defective. Remove the toner cartridges and
check for damage. If it is damaged,
replace it.
The media is moist
from humidity. Remove the moist media and replace
it with new, dry media.
The color
has a poor
reproduc-
tion or has
poor color
density. One or more of the
imaging units may be
defective. Remove the imaging units and check
for damage. If it is damaged, replace
it.
Symptom Cause Solution