Samsung ML-2550 Series Manual De Usuario

S

OLVING

 P

ROBLEMS

7.17

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 page 6.9. After the printout, if you 
still have the same problems, install a new toner cartridge. 
See “Installing the Toner Cartridge” on page 2.4.

• 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 scatter results from bits of toner 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.

• 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 G.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 2.14). For service, contact 
a service representative.

• Check the paper type and quality. See “Paper Specifications” 

• Ensure that the paper or other material is loaded correctly 

and the guides are not too tight or too loose against the 
paper stack.

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