Samsung SCX-4100 manual Printing Quality Problems, Toner specks, Dropouts

Printing Quality Problems

If the inside of the printer is dirty, or paper is improperly loaded, print quality maybe reduced. See the table below to clear the problem.

Condition	Suggested solutions
Light or faded	If a vertical white streak or faded area appears on the page:
print	• The toner supply is low. You may be able to temporarily
	extend the toner cartridge life. See “Redistributing Toner” on
	page 7.7. If this does not improve the print quality, install a
	new toner cartridge.
	• The paper may not meet paper specifications; for example,
	the paper is too moist or too rough. See “Paper
	Specifications” on page A.5.
	• If the entire page is light, the print resolution setting is too
	low or Toner Save mode is on. Adjust the print resolution and
	turn Toner Save mode off. See page 3.8 and page 1.27
	respectively.

•A combination of faded or smeared defects may indicate that the toner cartridge needs cleaning. See “Cleaning the Drum” on page 7.9.

•The surface of the document glass may be dirty. Clean the document glass. See page 7.5.

•The surface of the LSU may be dirty. Clean the LSU. See page 7.4.

Toner specks	• The paper may not meet specifications; for example, the
	paper is too moist or too rough. See “Paper Specifications” on
	page A.5.

• The transfer roller or paper path may be dirty. Clean the inside of your machine and the drum. See page 7.3 and page 7.9.

Dropouts	If generally rounded faded areas, 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 brand of paper. See
	“Paper Specifications” on page A.5.
	• The paper lot is bad. The manufacturing process can cause
	some areas to reject toner. Try a different kind or brand of
	paper.
	• The toner cartridge may be defective. Vertical repetitive
	defects on the next page.
	• If these steps do not correct the problems, contact a service
	representative.

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TROUBLESHOOTING 8.13