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Troubleshooting_ 116
Copying problems
Scanning problems
Character Voids
Character voids are white areas within parts of
characters that should be solid black:
• If you are using transparencies, try another
type of transparency. Because of the
composition of transparencies, some
character voids are normal.
• You may be printing on the wrong surface
of the paper. Remove the paper and turn it
around.
• The paper may not meet paper
specifications. (See "Specification on print
media" on page 35.)
Horizontal stripes
If horizontally aligned black streaks or smears
appear:
• The imaging unit may be installed
improperly. Remove the cartridge and
reinsert it.
• The imaging unit may be defective.
Remove the toner cartridge and install a
new one. (See "Replacing the toner
cartridge" on page 96.)
• If the problem persists, the machine may
require repair. Contact a service
representative.
Curl
If the printed paper is curled or paper does not
feed into the machine:
• Turn the stack of paper over in the tray.
Also try rotating the paper 180° in the tray.
• Change the printer option and try again. Go
to printer properties, click Paper tab, and
set type to Thin Paper. Refer to the
Software section for details.
An unknown
image repetitively
appears on a next
few sheets or
loose toner, light
print, or
contamination
occurs.
Your printer is probably being used at an
altitude of 1,000 m (3,281 ft) or above.
The high altitude may affect the print quality
such as loose toner or light imaging. You can
set this option through Paper or Printer tab in
printer driver’s properties. (See "Altitude
adjustment" on page 29.)
CONDITION SUGGESTED SOLUTIONS
Copies are too light
or too dark.
Use Light and Dark arrows to darken or
lighten the backgrounds of copies.
Smears, lines,
marks, or spots
appears on copies.
• If the defects are on the original, press
Light and Dark arrows to lighten the
background of your copies.
• If there are no defects on the original, clean
the scan unit. (See "Cleaning the scan
unit" on page 95.)
CONDITION SUGGESTED SOLUTIONS
A
Copy image is
skewed.
• Ensure that the original is face down on the
scanner glass or face up in the DADF.
• Check that the copy paper is loaded
correctly.
Blank copies print
out.
Ensure that the original is face down on the
scanner glass or face up in the DADF.
Image rubs off the
copy easily.
• Replace the paper in the tray with paper
from a new package.
• In high humidity areas, do not leave paper
in the machine for extended periods of
time.
Frequent copy paper
jams occur.
• Fan the stack of paper, then turn it over in
the tray. Replace the paper in the tray with
a fresh supply. Check/adjust the paper
guides, if necessary.
• Ensure that the paper is the proper paper
weight. 80 g/m
2
bond paper is
recommended.
• Check for copy paper or pieces of copy
paper remaining in the machine after a
paper jam has been cleared.
Toner cartridge
produces fewer
copies than expected
before running out of
toner.
• Your originals may contain pictures, solids,
or heavy lines. For example, your originals
may be forms, newsletters, books, or other
documents that use more toner.
• The machine may be turned on and off
frequently.
• The scanner lid may be left open while
copies are being made.
CONDITION SUGGESTED SOLUTIONS
The scanner does
not work.
• Make sure that you place the original to be
scanned face down on the scanner glass, or
face up in the DADF.
• There may not be enough available memory
to hold the document you want to scan. Try
the Prescan function to see if that works. Try
lowering the scan resolution rate.
• Check that the printer cable is connected
properly.
• Make sure that the printer cable is not
defective. Switch the cable with a known
good cable. If necessary, replace the cable.
• Check that the scanner is configured
correctly. Check scan setting in the
SmarThru Configuration
or the application
you want to use to make certain that the
scanner job is being sent to the correct port.
• In case of use of account feature, make sure
that you have extra scan count remained.
For example, if you try to scan 10-page
document while you have 5 scan count left,
the scan job would be canceled.
CONDITION SUGGESTED SOLUTIONS