Dell 1235cn manual AaBbCc

CONDITION	SUGGESTED SOLUTIONS
Dropouts	If faded areas, generally rounded, occur
	randomly on the page:
AaBbCc	• A single sheet of paper may be defective.
AaBbCc	Try reprinting the job.
	• The moisture content of the paper is
AaBbCc	uneven or the paper has moist spots on its
AaBbCc	surface. Try a different brand of paper.
	See "Selecting print media" on page 24.
AaBbCc	• The paper lot is bad. The manufacturing
	processes can cause some areas to reject
	toner. Try a different kind or brand of
	paper.

•Change the printer option and try again. Go to printer properties, click Paper tab, and set type to Thick Paper. Refer to the Software section for details.

If these steps do not correct the problem, contact a service representative.

White Spots White spots appear on the page:

•The paper is too rough and a lot of dirt from

the paper falls to the inner devices within the printer, which means the transfer belt may be dirty. Clean the inside of your printer. Contact a service representative.

• The paper path may need cleaning. Contact a service representative.

Vertical lines If black vertical streaks appear on the page:

•The drum inside the toner cartridge has probably been scratched. Remove the

toner cartridge and install a new one. See "Replacing the toner cartridge" on page 53.

If white vertical streaks appear on the page:

•The surface of the LSU part inside the

printer may be dirty. Clean the LSU, contact a service representative.

Color or Black	If the amount of background shading becomes
background	unacceptable:

•Change to a lighter weight paper.

See "Selecting print media" on page 24.

•Check the printer’s environment: very dry

(low humidity) or high humidity (higher than 80% RH) conditions can increase the amount of background shading.

•Remove the old toner cartridge and install

	a new one. See "Replacing the toner
	cartridge" on page 53.
Toner smear	• Clean the inside of the printer.
	See "Cleaning the inside" on page 50.
	• Check the paper type and quality.
	See "Selecting print media" on page 24.
	• Remove the toner cartridge and install a
	new one. See "Replacing the toner
	cartridge" on page 53.

CONDITION	SUGGESTED SOLUTIONS
Vertical repetitive	If marks repeatedly appear on the printed side
defects	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. 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 53.
	• 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 scatter Background scatter results from bits of toner randomly distributed on the printed page.

A	• 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	• If characters are improperly formed and
characters	producing hollow images, the paper stock
	may be too slick. Try a different paper.
	See "Selecting print media" on page 24.
	• If characters are improperly formed and
	producing a wavy effect, the scanner unit
	may need service. For service, contact a
	service representative.
Page skew	• Ensure that the paper is loaded properly.
AaBbCc	• Check the paper type and quality.
	See "Selecting print media" on page 24.
AaBbCc	• Ensure that the paper or other material is
	loaded correctly and the guides are not too
AaBbCc	tight or too loose against the paper stack.
AaBbCc
AaBbCc

Troubleshooting 67