Samsung CLP-300 Series Color or Black, Background, Toner smear, Vertical, Repetitive, Defects

Problem	Solution
Vertical lines	If black vertical streaks appear on the page:

AaBbCc	• A imaging unit has probably been scratched.
	Remove the imaging unit and install a new one. See
AaBbCc
	page 5.3.
AaBbCc	If white vertical lines appear on the page:
AaBbCc	• Clean the inside of the printer. See “Cleaning the
AaBbCc	Inside of the Printer” on page 5.7. If you still have
	the same problems, replace the imaging unit with a
	new one. See page 5.3.

Color or Black	If the amount of background shading becomes
background	unacceptable, the procedures below may fix the
	problem.

AaBbCc	• Change to lighter weight paper. See “Paper
AaBbCc	Specifications” on page 8.1.
AaBbCc	• Check the printer’s environment; very dry (low
	humidity) or high humidity (higher than 80% RH)
AaBbCc
	conditions can increase the amount of background
AaBbCc	shading.
	• Remove one of the old toner cartridges and install a
	new one.

Toner smear	• Clean the inside of the printer. See “Cleaning the
	Inside of the Printer” on page 5.7
	• Check the paper type and quality. See “Paper
	Specifications” on page 8.1.
	• Remove the imaging unit and install a new one. See
	“Replacing the Imaging Unit” on page 5.4.

Vertical	If marks repeatedly appear on the printed side of the
repetitive	page at even intervals:
defects	• Clean the inside of the printer. See “Cleaning the
AaBbCc	Inside of the Printer” on page 5.7. After cleaning
	the inside of the printer, if you still have the same
AaBbCc	problems, install a new toner cartridge of the
AaBbCc	problem color. See “Replacing Toner Cartridges” on
	page 5.3.
AaBbCc
	• Parts of the printer may have toner on them. If the
AaBbCc	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.

Problem	Solution
Background	Background scatter results from bits of toner
scatter	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 via the printer
	properties window.

Misformed	• If characters are improperly formed and producing
characters	hollowed images, the paper stock may be too slick.
	Try a different paper. See “Paper Specifications” on
	page 8.1.
	• If characters are improperly formed and producing
	a wavy effect, the printer may need service. Verify
	that it also occurs on a demo page. See page 2.7.
	For service, contact a service representative.
Page skew	• Ensure that the paper is loaded properly.

AaBbCc	• Check the paper type and quality. See “Paper
	Specifications” on page 8.1.
	• Ensure that the paper or other material is loaded
AaBbCc
	correctly and the guides are not too tight or too
AaBbCc
	loose against the paper stack.
AaBbCc
AaBbCc

Curl or wave • Ensure that the paper is loaded properly.

•Check the paper type and quality. Both high temperature and high humidity can cause paper curl. See “Paper Specifications” on page 8.1.

• Turn the stack of paper over in the tray. Also try rotating the paper 180° in the tray.

Wrinkles or	• Ensure that the paper is loaded properly.
creases	• Check the paper type and quality. See “Paper
	Specifications” on page 8.1.
	• Turn the stack of paper over in the tray. Also try
	rotating the paper 180° in the tray.

6.6

Solving Problems