Samsung SCX-4520 Printer User Manual


 
T
ROUBLESHOOTING
9.21
9
Toner smear
Clean the inside of the machine. See “Cleaning the Inside”
on page 8.3.
Check the paper type and quality. See “Paper
Specifications” on page F.6.
Remove the toner cartridge and install a new one. See
“Replacing the Toner Cartridge” on page 8.8.
Vertical repetitive
defects
If marks repeatedly appear on the printed side of the page at
even intervals:
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 “Cleaning the Drum” on
page 8.11. After the printout, if you still have the same
problems, remove the toner cartridge and install a new
one. See “Replacing the Toner Cartridge” on page 8.8.
Parts of the machine 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.
If you use inferior quality paper;see “Cleaning the Drum”
on page 8.11.
Background scatter
Background scatter results from bits of toner randomly
distributed on the printed page.
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.
Misformed
characters
If characters are improperly formed and producing hollow
images, the paper stock may be too slick. Try a different
paper. See “Paper Specifications” on page F.6.
If characters are improperly formed and producing a wavy
effect, the scanner unit may need service. For service,
contact a service representative.
Condition Suggested solutions
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