Samsung ML-3470 User Manual

Also see for ML-3470: User guide

Contents

9.12 < Troubleshooting>BackgroundscatterBackground scatter results from bits of tonerdistributed on the printed page.• The paper may be too damp. Try printing with adifferent batch of paper. Do not open packagesof paper until necessary so that the paper doesnot absorb too much moisture.• If background scatter occurs on an envelope,change the printing layout to avoid printing overareas that have overlapping seams on the reverseside. Printing on seams can cause problems.• If background scatter covers the entire surfacearea of a printed page, adjust the printresolution through your software application orvia the printer properties window.Misformedcharacters• If characters are improperly formed andproducing hollowed images, the paper stockmay be too slick. Try a different paper. Seepage 5.3.• If characters are improperly formed andproducing a wavy effect, the scanner unit mayneed service. Verify that it also occurs on ademo page (see page 2.5). For service, contacta service representative.Page skew • Ensure that the paper is loaded properly.• Check the paper type and quality. Seepage 5.2.• Ensure that the paper or other material isloaded correctly and the guides are not tootight or too loose against the paper stack.Curl or wave • Ensure that the paper is loaded properly.• Check the type and quality. Both hightemperature and humidity can cause papercurl. See page 5.2.• Turn over the stack of paper in the tray. Also tryrotating the paper 180° in the tray.• Try printing to the rear cover (face-up).Wrinkles orcreases • Ensure that the paper is loaded properly.• Check the paper type and quality. Seepage 5.2.• Open the rear cover and try printing to the rearcover (face-up).• Turn over the stack of paper in the tray. Also tryrotating the paper 180° in the tray.Condition Suggested solutionsAAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcBack ofprintouts aredirty• The transfer roller may be dirty. See page 8.1.• Check for leaking toner. Clean the inside of theprinter.Solid color orBlack pages • The toner cartridge may not be installedproperly. Remove the cartridge and reinsert.• The toner cartridge may be defective and needreplacing. Install a new toner cartridge.• The printer may require repair. Contact aservice representative.Loose toner • Clean the inside of the printer.• Check the paper type and quality. Seepage 5.2.• Install a new toner cartridge. See page 8.3.• If the problem persists, the printer may requirerepair. Contact a service representative.CharacterVoidsCharacter voids are white areas within charactersthat should be solid black:• If you are using transparencies, try anothertype of transparency. Because of thecomposition of the transparency, somecharacter voids may be normal.• You may be printing on the wrong surface onthe paper. Remove the paper and turn itaround.• The paper may not meet paper specifications.See page 5.3.Horizontalstripes If horizontally aligned black streaks or smearsappear:• The toner cartridge may be installedimproperly. Remove the cartridge and reinsert.• The toner cartridge may be defective. Install anew toner cartridge. See page 8.3.• If the problem persists, the printer may requirerepair. Contact a service representative.Condition Suggested solutionsAAAaBbCcAaBbCcAaBbCcAaBbCcAaBbCc