Samsung SCX-4500 Copying problems, Condition Suggested solutions Loose toner, Character Voids

	Condition		Suggested solutions
Loose toner		•	Clean the inside of the machine. Contact a
			service representative to clean the inside of
			the machine. After cleaning the inside of the
			machine, if you still have the same
			problems, contact a service representative.
		•	Check the paper type and quality. (See
			"Specifications on print media" on page 4.3.)
		• Remove the toner cartridge, and then install
			a new one. (See "Replacing the toner
			cartridge" on page 8.5.)

•If the problem persists, the machine may require repair. Contact a service representative.

Character Voids	Character voids are white areas within parts of
	characters that should be solid black:
	•	If you are using transparencies, try another
		type of transparency. Because of the
		composition of transparencies, some
		character voids are normal.
	• You may be printing on the wrong surface of
		the paper. Remove the paper and turn it
		around.
	•	The paper may not meet paper
		specifications. (See "Specifications on print
		media" on page 4.3.)
Horizontal stripes	If horizontally aligned black streaks or smears
	appear:
	•	The toner cartridge may be installed
		improperly. Remove the cartridge and
		reinsert it.
	•	The toner cartridge may be defective.
		Remove the toner cartridge and install a
		new one. (See "Replacing the toner
		cartridge" on page 8.5.)
	•	If the problem persists, the machine may
		require repair. Contact a service
		representative.
Curl	If the printed paper is curled or paper does not
	feed into the machine:
	• Turn the stack of paper over in the tray. Also
		try rotating the paper 180° in the tray.

Condition	Suggested solutions
An unknown image	You machine is probably being used at an
repetitively appears	altitude of 1,000 m (3,281 ft) or above. The
on the next few	high altitude may affect the print quality from
sheets or loose	loose toner or light imaging. You can set this
toner, light print, or	option through the Printer Tab in printer
contamination	driver’s properties. See page 3.2.
occurs.

Copying problems

Condition		Suggested solutions
Copies are too light	Use Darkness arrows to darken or lighten the
or too dark.	backgrounds of copies.
Smears, lines,	•	If the defects are on the original, press
marks, or spots		Darkness arrows to lighten the background
appears on copies.		of your copies.
	•	If there are no defects on the original, clean
		the scan unit. (Page page 8.3)
Copy image is	•	Ensure that the original is face down on the
skewed.		scanner glass.
	•	Check that the copy paper is loaded
		correctly.
Blank copies print	Ensure that the original is face down on the
out.	scanner glass.
Image rubs off the	•	Replace the paper in the tray with paper
copy easily.		from a new package.
	•	In high humidity areas, do not leave paper in
		the machine for extended periods of time.
Frequent copy	•	Fan the stack of paper, then turn it over in
paper jams occur.		the tray. Replace the paper in the tray with a
		fresh supply. Check/adjust the paper guides,
		if necessary.
	•	Ensure that the paper is the proper paper
		weight. 75 g/m2 paper is recommended.
	•	Check for copy paper or pieces of copy
		paper remaining in the machine after a
		paper jam has been cleared.
toner cartridge	•	Your originals may contain pictures, solids,
produces fewer		or heavy lines. For example, your originals
copies than		may be forms, newsletters, books, or other
expected before		documents that use more toner.
running out of	•	The machine may be turned on and off
toner.		frequently.
	•	The scanner lid may be left open while
		copies are being made.

9.12 <Troubleshooting>