Samsung CLX-6240FX, CLX-6200ND, CLX-6210FX, CLX-6200FX manual Printing quality problems

CONDITION	POSSIBLE	SUGGESTED SOLUTIONS
	CAUSE
The machine	If you are under the	Suggested solutions: Change
prints, but the	DOS environment,	the font setting. See
text is wrong,	the font setting for	"Changing the font
garbled, or	your machine may	setting" on page 31.
	be set incorrectly.
incomplete.
Before printing,	Using damp paper	This is not a problem. Just
the machine	can cause vapor	keep printing.
emits vapor near	during printing.
the output tray.
The machine	Paper size and	Set the correct paper size in
does not print	paper size setting do	the Custom in the Paper tab
special sized	not match.	in the printer propeties. See
paper such as a		Software section.
billing paper.

Printing quality problems

If the inside of the machine is dirty or paper has been loaded improperly, you may notice a reduction in print quality. See the table below to clear the problem.

CONDITION	SUGGESTED SOLUTIONS
Light or faded print If a vertical white streak or faded area appears
	on the page:
	• The toner supply is low. You may be able
	to temporarily extend the toner cartridge
	life. See page 66. 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 page 33.
	• If the entire page is light, the print
	resolution setting is too low. Adjust the print
	resolution. See the help screen of the
	printer driver.
	• A combination of faded or smeared defects
	may indicate that the toner cartridge needs
	cleaning.
	• The surface of the LSU part inside the
	machine may be dirty. Clean the LSU,
	contact a service representative.
Toner specks	• The paper may not meet specifications; for
AaBbCc	example, the paper is too moist or too
	rough. See page 33.
AaBbCc	• The paper path may need cleaning. See
	"Cleaning the inside" on page 63.
AaBbCc
AaBbCc
AaBbCc

	CONDITION	SUGGESTED SOLUTIONS
Dropouts		If faded areas, generally rounded, occur
		randomly on the page:
	AaBbCc	Try reprinting the job.
	AaBbCc	• A single sheet of paper may be defective.
		• The moisture content of the paper is
	AaBbCc	uneven or the paper has moist spots on its
	AaBbCc	surface. Try a different brand of paper. See
		page 33.
	AaBbCc	• The paper lot is bad. The manufacturing
		processes can cause some areas to reject
		toner. Try a different kind or brand of
		paper.

•Change the printer option and try again. Go to printer properties, click Paper tab, and set type to Thick Paper. Refer to the Software section for details.

	If these steps do not correct the problem,
	contact a service representative.
White Spots	White spots appear on the page:
	• The paper is too rough and a lot of dirt from
	the paper falls to the inner devices within
	the machine, which means the transfer belt
	may be dirty. Clean the inside of your
	machine. Contact a service representative.
	• The paper path may need cleaning.
	Contact a service representative.
Vertical lines	If black vertical streaks appear on the page:
	• The drum inside the toner cartridge has
	probably been scratched. Remove the
	toner cartridge and install a new one. See
	page 66.
	If white vertical streaks appear on the page:
	• The surface of the LSU part inside the
	machine may be dirty. Clean the LSU,
	contact a service representative.
	If vertical streaks appear on the page:
	• The surface of the scanner glass and its
	white sheet may be dirty. Clean these unit.
	See 65 . If this problem persists, contact a
	service representative.
Color or Black	If the amount of background shading becomes
background	unacceptable:
	• Change to a lighter weight paper. See
	page 33.
	• Check the machine’s environment: very dry
	(low humidity) or high humidity (higher than
	80% RH) conditions can increase the
	amount of background shading.
	• Remove the old toner cartridge and install
	a new one. See page 66.

84_Troubleshooting