Samsung ML ML-4050N User Manual page 56

Condition
Vertical If marks repeatedly appear on the printed side of
repetitive the page at even intervals:
defects
• The toner cartridge may be damaged. If a
repetitive mark occurs on the page, print a
cleaning sheet several times to clean the
cartridge; see page 8.3. After the printout, if
you still have the same problems, install a new
toner cartridge. See page 8.4.
• Parts of the printer may have toner on them. If
the defects occur on the back of the page, the
problem will likely correct itself after a few
more pages.
• The fusing assembly may be damaged.
Contact a service representative.
Background Background scatter results from bits of toner
scatter distributed on the printed page.
• The paper may be too damp. Try printing with
a different batch of paper. Do not open
A
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
via the printer properties window.
Misformed • If characters are improperly formed and
characters
producing hollowed images, the paper stock
may be too slick. Try a different paper. See
page 5.3.
• If characters are improperly formed and
producing a wavy effect, the scanner unit may
need service. Verify that it also occurs on a
demo page (see page 2.6). For service,
contact a service representative.
Page skew • Ensure that the paper is loaded properly.
• Check the paper type and quality. See page
5.2.
• Ensure that the paper or other media is loaded
correctly and the guides are not too tight or
too loose against the paper stack.
Suggested solutions Condition
Curl or wave • Ensure that the paper is loaded properly.
• Check the type and quality. Both high
• Turn over the stack of paper in the tray. Also
• Try printing to the rear cover (face-up).
Wrinkles or • Ensure that the paper is loaded properly.
creases
• Check the paper type and quality. See page
• Open the rear cover and try printing to the rear
• Turn over the stack of paper in the tray. Also
Back of • The transfer roller may be dirty. See page 8.1.
printouts are • Check for leaking toner. Clean the inside of
dirty
Black pages • The toner cartridge may not be installed
• The toner cartridge may be defective and
A
• The printer may require repair. Contact a
Loose toner • Clean the inside of the printer.
• Check the paper type and quality. See page
• Install a new toner cartridge. See page 8.4.
• If the problem persists, the printer may require
9.12
<Troubleshooting>
Suggested solutions
temperature and humidity can cause paper
curl. See page 5.2.
try rotating the paper 180° in the tray.
5.2.
cover (face-up).
try rotating the paper 180° in the tray.
the printer.
properly. Remove the cartridge and reinsert.
need replacing. Install a new toner cartridge.
service representative.
5.2.
repair. Contact a service representative.