User Guide
Solving Problems with Printing Quality 13-33
Image is 
blurred; 
background 
is lightly 
stained; 
there is 
insufficient 
gloss of the 
printed 
image.
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 may be 
defective.
Remove the imaging units and check 
for damage. If it is damaged, replace it.
The original glass is 
dirty.
Clean the original glass. For details, 
refer to “Cleaning the machine” on 
page 12-4.
The original cover 
pad is dirty.
Clean the original cover pad. For 
details, refer to “Cleaning the machine” 
on page 12-4.
The print or 
color density 
is uneven.
One or more of the 
toner cartridges may 
be defective or low.
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.
The machine is not 
level.
Place the machine on a flat, hard, level 
surface.
Irregular 
print or mot-
tled image 
appears.
The media is moist 
from humidity.
Adjust the humidity in the media stor-
age area.
Remove the moist media and replace it 
with new, dry media.
Unsupported media 
(wrong size, thick-
ness, type, etc.) is 
being used.
Use approved media. See “Specifica-
tions” on page 4-2.
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.
Symptom Cause Solution










