Troubleshooting_71

Printing quality problems

If the inside of the machine is dirty or paper has been loaded improperly,
you may notice a reduction in print quality. See the table below to clear the
problem.
The printer
does not
print PDF file
correctly.
Some parts
of graphics,
text, or
illustrations
are missing .
Incompatibility
between the PDF
file and the Acrobat
products.
Printing the PDF file as an image
may solve this probl em. Turn on
Print As Image from the Acrobat
printing options.
It will take longer to print
when you print a PDF file
as an image.
The print
quality of
photos is not
good. Images
are not clear.
The resol ution of the
photo is very low. Reduce the photo size. If you
increase the photo size in the
software application, the
resolution will be reduced.
The machine
prints, but
the text is
wrong,
garbled, or
incomplete.
If you are under the
DOS environment,
the font setting for
your machine may
be set incorrectly.
Suggested solutions: Change the
font setting. See "C ha ngi ng the
font setting" on page 28.
Before
printing, the
machine
emits vapor
near the
output tray.
Using damp paper
can cause vapor
during printing.
This is not a problem. Just keep
printing.
CONDITION SUGGESTED SOLUTIONS
Light or faded print
If a vertical white streak or faded area appears on
the page:
• The toner supply is low. You may be able to
temporarily extend the toner cartridge life. See
page 60. If this does not improve the print
quality, install a new toner cartridge.
• The paper may not meet paper specifications;
for example, the paper is too moist or too
rough. See page 30.
• If the entire page is light, the print resolution
setting is too low. Adjust the print resolution.
See the help screen of the printer driver.
• A combination of faded or smeared defects
may indicate that the toner cartridge needs
cleaning.
• The surface of the LSU part inside the machine
may be dirty. Clean the LSU, contact a service
representative.
CONDITION POSSIBLE
CAUSE SUGGESTED SOLUTIONS
Toner specks
• The paper may not meet specifications; for
example, the paper is too moist or too rough .
See page 30.
• The paper path may need cleaning. See
"Cleaning the inside" on page 57.
Dropouts
If faded areas, generally rounded, occur randomly
on the page:
• A single sheet of paper may be defective. Try
reprinting the job.
• The moisture c on tent of the paper is un ev en o r
the paper has moist spot s on its surface. Try a
different brand of paper. See page 30.
• The paper lot is bad. The manufacturing
processes can cause some areas to reject
toner. Try a different kind or brand of pa per.
• Change the printer option and try again. Go to
printer propert ies, cl ick Paper tab, and set type
to Thick Paper. Refer to the Software section
for details.
If these steps do no t corre ct the pr oblem, cont act a
service represen tati ve.
White Spots White spot s app ear on the pag e:
• The paper is too rough and a lot of dirt from the
paper falls to the inner devices within the
machine, which means the transfer belt may be
dirty. Clean the inside of you r machi ne. Contac t
a service representative.
• The paper path may need cleaning. Contact a
service represe nta tiv e.
Vertical lines
If black vertical streaks appear on the page:
• The d rum inside the toner cartridge has
probably been scratched. Remove the toner
cartri dge and in stall a new one. See page 6 0.
If white vertical streaks appear on the page:
• The surface of the LSU p art ins ide th e mac hine
may be dirty. Clean the L SU, contact a ser vice
representative.
Color or Black
background
If the amount of background shading becomes
unacceptable:
• Change to a lighte r weigh t pap er. See page 30.
• Check the machi ne ’s env ironment: very dry
(low humidity) or high humidity (higher than
80% RH) conditions can increase the amount
of backgr ound shading.
• Remove the old toner cartridge and install a
new one. See page 60.
CONDITION SUGGESTED SOLUTIONS
AaBbCc
AaBbCc
AaBbCc
AaBbCc
AaBbCc
AaBbCc
AaBbCc
AaBbCc
AaBbCc
AaBbCc