Samsung ML-2850D manual Solving print quality problems

Condition	Possible cause	Suggested solutions
Pages print,	The toner	Redistribute the toner
but are	cartridge is	cartridge. See page 8.2.
blank.	defective or out of	If necessary, replace the toner
	toner.
		cartridge. See page 8.3.
	The file may have	Check the file to ensure that it
	blank pages.	does not contain blank pages.
	Some parts, such	Contact a service
	as the controller	representative.
	or the board, may
	be defective.
The	The setting in the	Select Download as Bitmap in
illustrations	software	the Advanced Options window
print	application is	of the graphic properties. Print
incorrectly in	wrong.	the document again.
Adobe
Illustrator.
The printer	Incompatibility	Printing the PDF file as an
does not	between the PDF	image may solve this problem.
print PDF file	file and the	Turn on Print As Image from
correctly.	Acrobat products	the Acrobat printing options.
Some parts		Note: It will take longer to print
of graphics,		when you print a PDF file as an
text, or
		image.
illustrations
are missing.

Solving print quality problems

Dirt inside of the printer or improper paper loading may reduce print quality. See the table below to troubleshoot problems.

Condition	Suggested solutions
Light or faded	If a vertical white streak or faded area appears
print	on the page:

• The toner supply is low. You may be able to temporarily extend the toner cartridge life. See page 8.2. If this does not improve 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 page 5.3.

•If the entire page is light, the print resolution setting is too light or toner save mode is on. Adjust the print resolution and toner save mode in the printer properties. See the Software Section.

•A combination of faded or smeared defects may indicate that the printer needs cleaning. See page 8.1.

•The surface of LSU may be dirty. Clean the LSU. See page 8.2.

Toner spots	•	The paper may not meet specifications (for
		example, the paper is too moist or too rough).
		See page 5.3.
	•	The transfer roller or paper path may be dirty.
		See page 8.1.
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 page 5.3.

• 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 the next column.

•If these steps do not correct the problems, contact a service representative.

9.7 <Troubleshooting>