Dell 2355dn Multifunction Mono Laser Printer User's Guide - Page 288
Vertical repetitive defects, Background scatter, Misformed characters, skew
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Condition Suggested solutions 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". After the printout, if you still have the same problems, install a new toner cartridge. See "Replacing the Toner Cartridge". • 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 A 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. Misformed characters • If characters are improperly formed and produce hollow images, the paper stock may be too slick. Try a different paper. See "Paper Specifications". • If characters are improperly formed and produce a wavy effect, the scanner unit may need service. For service, contact a service representative. Page skew AAAAaAaaaBaBBBbBbbbCbCCCCccccc • Ensure that the paper is loaded properly. • 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. 287