Konica Minolta bizhub C25 - Manual (Page 298)

Solving Problems with Printing Quality 10-37
There are
toner
smudges on
the back
side of the
page
(whether or
not it has
been
duplexed). The media transfer
roller is dirty. Clean the media transfer roller.
If you think the transfer roller should
be replaced, contact Technical Sup-
port with the error information.
The media path is
dirty with toner. Print several blank sheets and the
excess toner should disappear.
One or more of the
toner cartridges are
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.
Abnormal
areas (white,
black, or
color)
appear in a
regular pat-
tern. The laser lens is dirty. Clean the laser lens.
A toner cartridge may
be defective. Remove the toner cartridges with the
color causing the abnormal image.
Replace it with a new toner cartridge.
One or more of the
imaging units is
defective. Remove the imaging units and check
for damage. If it is damaged, replace
it.
Image
defects. The laser lens is dirty. Clean the laser lens.
A toner cartridge may
be leaking. Remove the toner cartridges and
check for damage. If it is damaged,
replace it.
A toner cartridge may
be defective. Remove the toner cartridge with the
color causing the abnormal image.
Replace it with a new toner cartridge.
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