Samsung ML-4600 manual Solving Print Quality Problems

Solving Print Quality Problems

Problem

Solution

Toner specks	• The paper may not meet paper specifications (for example,
	the paper is too moist or too rough). See “Paper
	Specifications” 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 the
	Inside”.
Dropouts	If faded areas, generally rounded, occur randomly on the
	page:
	• A single sheet of paper may be defective. Try reprinting the
	job.
	• The moisture content of the paper is uneven or the paper
	has moist spots on its surface. Try a different kind or brand
	of paper. See “Paper Specifications” on page A.2.
	• The paper lot is bad. The manufacturing processes can
	cause some areas to reject toner. Try a different kind or
	brand of paper.
	• The toner cartridge may be defective. See “Vertical
	repetitive defects” on page 7.13.
	• If these steps do not correct the problems, contact a
	service representative.
Vertical lines	If black vertical streaks appear on the page:
	• The photosensitive drum inside the toner cartridge has
	probably been scratched. Install a new toner cartridge.
	If white vertical streaks appear on the page:
	• The surface of LSU part inside the printer may be dirty.
	Clean the LSU (see page 6.4).

7.12 PROBLEM SOLVING