Samsung CLX-8380ND User Manual (user Manual) (ver.5.00) (English) - Page 114
White Spots, Vertical lines, Toner smear, Condition, Suggested solutions, Vertical repetitive, defects
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Condition White Spots Vertical lines Color or Black background Toner smear Suggested solutions White spots appears on the page: • The paper is too rough and a lot of dirt from a paper falls to the inner devices within the machine, so the transfer roller may be dirty. Clean the inside of your machine. (Page 11.2) Contact a service representative. • The paper path may need cleaning. Contact a service representative. If black vertical streaks appear on the page: • The drum inside the printer has probably been scratched. Remove the imaging unit and install a new one. (Page 11.5) If white vertical streaks appear on the page: • The surface of the LSU part inside the machine may be dirty. Clean the LSU. Contact a service representative. If vertical streaks appear on the page: • The surface of the scanner glass and its white sheet may be dirty. Clean these unit. See 11.2 . If this problem persists, contact a service representative. If the amount of background shading becomes unacceptable: • Change to a lighter weight paper. (Page 4.3) • Check the environmental conditions: very dry conditions (low humidity) or a high level of humidity (higher than 80% RH) can increase the amount of background shading. • Remove the old imaging unit and then, install a new one. (Page 11.4) • Clean the inside of the machine. Contact a service representative. • Check the paper type and quality. (Page 4.3) • Remove the imaging unit and then, install a new one. (Page 11.4) Condition Suggested solutions Vertical repetitive defects If marks repeatedly appear on the printed side of the page at even intervals: • The imaging unit may be damaged. If a repetitive mark occurs on the page, run a cleaning sheet through several times to clean the cartridge; contact a service representative. After the printout, if you still have the same problems, remove the imaging unit and then, install a new one. (Page 11.4) • Parts of the machine 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. • 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 in printer properties. Misformed characters • If characters are improperly formed and producing hollow images, the paper stock may be too slick. Try different paper. (Page 4.3) • If characters are improperly formed and producing a wavy effect, the scanner unit may need service. Contact a service representative. 12.18