Samsung CLX-8385ND Series manual Printing quality problems

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 not enough. You may be able to temporarily extend the toner cartridge life. If this does not improve the print quality, install a new toner cartridge.

• The color tone might not be adjusted. Adjust the color tone. (Page 10.8)

• The paper may not meet paper specifications; for example, the paper may be too moist or rough. (Page 4.3)

•If the entire page is light, the print resolution setting is too low or the toner save mode is on. Adjust the print resolution and turn the toner save mode off. See the help screen of the printer driver and refer to Software section, respectively.

•A combination of faded or smeared defects may indicate that the toner cartridge needs cleaning. Contact a service representative.

•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
		example, the paper may be too moist or
		rough. (Page 4.3)
	•	The transfer roller may be dirty. Clean the
		inside of your machine. Contact a service
		representative.
	•	The paper path may need cleaning. Contact
		a service representative.
	•	Check the location of the machine. If the
		area is not well-ventilated, this problem may
		occur. (Page 3.1)
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 brand of paper. (Page 4.3)
	•	The paper lot is bad. The manufacturing
		processes can cause some areas to reject
		toner. Try a different kind or brand of paper.

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

	Condition		Suggested solutions
White Spots		White spots appears on the page:
		•	The paper is too rough and a lot of dirt from
			a paper falls to the inner devices within the
			machine, so the transfer roller may be dirty.
			Clean the inside of your machine.
			(Page 11.2) 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 printer has probably
			been scratched. Remove the imaging unit
			and install a new one. (Page 11.6)
		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.
		•	The inside of the Imaging Unit may be dirty.
			Change the Imaging Unit.
		If vertical streaks appear on the page:
		•	The surface of the scanner glass and its
			white sheet may be dirty. Clean these unit.
			See 11.2 . If this problem persists, contact a
			service representative.
Color or Black		If the amount of background shading becomes
background		unacceptable:
		•	Change the IBT if it has reached its lifespan.
		•	Check the environmental conditions: very
			dry conditions (low humidity) or a high level
			of humidity (higher than 80% RH) can
			increase the amount of background
			shading.
		•	Remove the old imaging unit and then,
			install a new one. (Page 11.4)
Toner smear		•	Clean the inside of the machine. Contact a
			service representative.
		•	Check the paper type and quality.
			(Page 4.3)
		•	Remove the imaging unit and then, install a
			new one. (Page 11.4)
		•	Change the IBT if it has reached its lifespan.

12.18 <Troubleshooting>