Samsung ML-1440 User Manual

Also see for ML-1440: Product guide User guide Service manual

Contents

7.17PROBLEM SOLVINGSolving Print Quality ProblemsProblem SolutionIf the amount of background toner shading becomesunacceptable, the procedures below may help to clear thecondition:• Change the paper to a lighter basis weight. See “PaperSpecifications” on page A.2.• Check the printer’s environment; very dry (low humidity)or high humidity (higher than 80 % RH) conditions canincrease the amount of background shading.• Install a new toner cartridge.Gray background• Clean the inside of the printer. See “Cleaning the Inside”on page 6.4.• Check the paper type and quality. See “PaperSpecifications” on page A.2.• Try installing a new toner cartridge.Toner smearIf marks repeatedly appear on the printed side of the pageat even intervals:• The toner cartridge may be damaged. If a repetitive markoccurs every 95 mm or 38 mm on the page, print thecleaning sheet several times to clean the cartridge (seepage 6.5). If you still have the same problems, install anew toner cartridge.• Parts in the printer may have toner on them. If the defectsoccur on the back of the page, the problem will likelycorrect itself after a few more pages.• The fusing assembly may be damaged. Contact a servicerepresentative.Repetitive verticaldefectsAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCc