Samsung ML-1440 User Manual

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

Contents

7.16 PROBLEM SOLVINGProblem Solution• The paper may not meet paper specifications (for example,the paper is too moist or too rough). See “PaperSpecifications” on page A.2.• The transfer roller may be dirty. See “Cleaning the Inside”on page 6.4.• The paper path may need cleaning. See “Cleaning theInside” on page 6.4.Toner specksIf faded areas, generally rounded, occur randomly on thepage:• A single sheet of paper may be defective. Try reprintingthe job.• The moisture content of the paper is uneven or the paperhas moist spots on its surface. Try a different kind or brandof paper. See “Paper Specifications” on page A.2.• The paper lot is bad. The manufacturing processes cancause some areas to reject toner. Try a different kind orbrand of paper.• The toner cartridge may be defective. See “Repetitivevertical defects” on page 7.17.• If these steps do not correct the problems, contact aservice representative.DropoutsIf black vertical streaks appear on the page:• The photosensitive drum inside the toner cartridge hasprobably been scratched. Install a new toner cartridge.If white vertical streaks appear on the page:• The surface of the LSU part inside the printer may be dirty.Clean the LSU (see page 6.5).Vertical linesAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcAaBbCcSolving Print Quality Problems