Dell 5330dn Workgroup Mono Laser Printer - Manual (Page 121)

Toner specks l The paper may not meet specifications; for example, the paper is too moist
or too rough. See
"Paper Specifications" .
l The transfer roller may be dirty. Clean the inside of your printer. See
"Cleaning the Interior" .
l The paper path may need cleaning. See "Cleaning the Interior" .
Dropouts If faded areas, generally rounded, occur randomly on the page:
l A single sheet of paper may be defective. Try reprinting the job.
l The moisture content of the paper is uneven or the paper has moist spots
on its surface. Try a different brand of paper. See
"Paper Specifications" .
l The paper lot is bad. The manufacturing process can cause some areas to
reject toner. Try a different kind or brand of paper.
l The toner cartridge may be defective. See "Vertical repetitive defects" on
the next page.
l If these steps do not correct the problems, contact a service representative.
Vertical lines l If black vertical streaks appear on the page, the drum inside the toner
cartridge has probably been scratched. Install a new toner cartridge. See
"Replacing the Toner Cartridge" .
l If white vertical streaks appear on the page, the surface of the LSU part inside
the printer may be dirty. Clean the LSU (see
"Cleaning the Interior" ).
Gray background If the amount of background shading becomes unacceptable:
l Change to lighter weight pages. See "Paper Specifications" .
l Check the printer's environment; very dry (low humidity) or high humidity
(higher than 80% RH) conditions can increase the amount of background
shading.
l Remove the old toner cartridge and install a new one. See "Replacing the
Toner Cartridge" .
Toner smear l Clean the inside of the printer. See "Cleaning the Interior" .
l Check the paper type and quality. See "Paper Specifications" .
l Remove the toner cartridge and install a new one. See "Replacing the Toner
Cartridge" .
Vertical repetitive
defects If marks repeatedly appear on the printed side of the page at even intervals:
l 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
"Printing a
cleaning sheet" . After the printout, if you still have the same problems, install
a new toner cartridge. See "Replacing the Toner Cartridge" .
l 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.
l The fusing assembly may be damaged. Contact a service representative.
Background scatter Background scatter results from bits of toner distributed on the printed page.
l 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.
l 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.
l 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 l If characters are improperly formed and produce hollow images, the paper
stock may be too slick. Try a different paper. See
"Paper Specifications" .
l If characters are improperly formed and produce a wavy effect, the scanner
unit may need service. For service, contact a service representative.
Page skew l Ensure the paper is loaded properly.