Samsung ML-1640 Series User Manual page 36

CONDITION
Background scatter results from bits of toner
Background scatter
randomly distributed on the printed page.
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A
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Misformed
characters
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Page skew
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Curl or wave
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Wrinkles or creases •
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SUGGESTED SOLUTIONS
The paper may be too damp. Try printing with a
different batch of paper. Do not open packages
of paper until necessary so that the paper does
not absorb too much moisture.
If background scatter occurs on an envelope,
change the printing layout to avoid printing over
areas that have overlapping seams on the
reverse side. Printing on seams can cause
problems.
If background scatter covers the entire surface
area of a printed page, adjust the print
resolution through your software application or
the printer properties.
If characters are improperly formed and
producing hollow images, the paper stock may
be too slick. Try a different paper. See page 18.
Ensure that the paper is loaded properly.
Check the paper type and quality. See page 18.
Ensure that the paper or other material is loaded
correctly and the guides are not too tight or too
loose against the paper stack.
Ensure that the paper is loaded properly.
Check the paper type and quality. Both high
temperature and humidity can cause paper curl.
See page 18.
Turn over the stack of paper in the tray. Also try
rotating the paper 180° in the tray.
Ensure that the paper is loaded properly.
Check the paper type and quality. See page 18.
Turn over the stack of paper in the tray. Also try
rotating the paper 180° in the tray.
CONDITION
• Check for leaking toner. Clean the inside of the
Back of printouts
machine. See page 25.
are dirty
• The toner cartridge may not be installed
Black pages
properly. Remove the cartridge and reinsert it.
• The toner cartridge may be defective and need
replacing. Remove the toner cartridge and install
A
a new one. See page 28.
• The machine may require repair. Contact a
service representative.
• Clean the inside of the machine. See page 25.
Loose toner
• Check the paper type and quality. See page 18.
• Remove the toner cartridge and install a new
one. See page 28.
• If the problem persists, the machine may require
repair. Contact a service representative.
Character voids are white areas within parts of
Character Voids
characters that should be solid black:
• If you are using transparencies, try another
type of transparency. Because of the
A
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 page 18.
If horizontally aligned black streaks or smears
Horizontal stripes
appear:
• The toner cartridge may be installed
AaBbCc
improperly. Remove the cartridge and reinsert
AaBbCc
it.
• The toner cartridge may be defective. Remove
AaBbCc
the toner cartridge and install a new one. See
AaBbCc
page 28.
• If the problem persists, the machine may
AaBbCc
require repair. Contact a service
representative.
SUGGESTED SOLUTIONS
Troubleshooting_ 36