Samsung CLX-9251NA User Manual Ver.1.03 (English) - Page 154

Condition Vertical repetitive defects Background scatter A Misformed characters Suggested Solutions 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 imaging unit. Cleaning the inside. If you still have the same problems, remove the imaging unit and install a new one. Contact a service representative. • 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 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 Printing Preferences (see "Opening printing preferences" on page 101). • If characters are improperly formed and producing hollow images, the paper stock may be too slick. Try different paper (see "Print media specifications" on page 165). • If characters are improperly formed and producing a wavy effect, the scanner unit may need service. Cleaning the scan unit or contact a service representative. Page skew • Ensure that the paper is loaded properly. • Check the paper type and quality (see "Print media specifications" on page 165). • Ensure that the paper or other material is loaded correctly and the guides are not too tight or too loose against the paper stack. • Ensure that the standard tray right bottom door, dual cassette feeder right bottom door or high capacity feeder right bottom door is securely closed. If the bottom doors are not completely closed, open and close the bottom doors. Condition Curl or wave Suggested Solutions • Ensure that the paper is loaded properly. • Check the paper type and quality. Both high temperature and humidity can cause paper curl (see "Print media specifications" on page 165). • Turn the stack of paper over in the tray. Also try rotating the paper 180° in the tray. Wrinkles or creases Back of printouts are dirty • Ensure that the paper is loaded properly. • Check the paper type and quality (see "Print media specifications" on page 165). • Turn the stack of paper over in the tray. Also try rotating the paper 180° in the tray. • Ensure that the standard tray right bottom door, dual cassette feeder right bottom door or high capacity feeder right bottom door is securely closed. If the bottom doors are not completely closed, open and close the bottom doors. Check for leaking toner. Clean the inside of the machine. Cleaning the inside or contact a service representative. Solid Color or Black pages A • The imaging unit may not be installed properly. Remove the imaging unit and reinsert it. • The imaging unit may be defective and need replacing. Remove the imaging unit and install a new one. Contact a service representative. • The machine may require repair. Contact a service representative. Loose toner • Clean the inside of the machine. Cleaning the inside or contact a service representative. • Check the paper type and quality (see "Print media specifications" on page 165). • Remove the imaging unit and install a new one. Contact a service representative. • If the problem persists, the machine may require repair. Contact a service representative. Troubleshooting_ 154