Samsung SCX-6555NX Scanning problems, Fax problems, scanned face down on the scanner glass, or

CONDITION	SUGGESTED SOLUTIONS
Toner cartridge	• Your originals may contain pictures, solids,
produces fewer	or heavy lines. For example, your originals
copies than expected	may be forms, newsletters, books, or other
before running out of	documents that use more toner.
toner.	• The machine may be turned on and off
	frequently.
	• The scanner lid may be left open while
	copies are being made.

Scanning problems

CONDITION	SUGGESTED SOLUTIONS
The scanner does	• Make sure that you place the original to be
not work.	scanned face down on the scanner glass, or
	face up in the DADF.
	• There may not be enough available memory
	to hold the document you want to scan. Try
	the Prescan function to see if that works. Try
	lowering the scan resolution rate.
	• Check that the printer cable is connected
	properly.
	• Make sure that the printer cable is not
	defective. Switch the cable with a known
	good cable. If necessary, replace the cable.
	• Check that the scanner is configured
	correctly. Check scan setting in the
	SmarThru Configuration or the application
	you want to use to make certain that the
	scanner job is being sent to the correct port.
The unit scans very	• Check if the machine is printing received
slowly.	data. If so, scan the document after the
	received data has been printed.
	• Graphics are scanned more slowly than text.
	• Communication speed slows in scan mode
	because of the large amount of memory
	required to analyze and reproduce the
	scanned image. Set your computer to the
	ECP printer mode through BIOS setting. It
	will help to increase the speed. For details
	about how to set BIOS, refer to your
	computer user’s guide.

CONDITION	SUGGESTED SOLUTIONS
Message appears on	• There may be a copying or printing job in
your computer	progress. Try your job again when that job is
screen:	finished, try your job again.
• “Device can't be	• The selected port is currently being used.
set to the H/W	Restart your computer and try again.
mode you want.”	• The printer cable may be improperly
• “Port is being used	connected or the power may be off.
by another	• The scanner driver is not installed or the
program.”	operating environment is not set up properly.

•“Port is Disabled.” • Ensure that the machine is properly

•	“Scanner is busy	connected and the power is on, then restart
	receiving or	your computer.
	printing data.	• The USB cable may be improperly
	When the current	connected or the power may be off.
	job is completed,
	try again.”
•	“Invalid handle.”
•	“Scanning has
	failed.”
Fax problems
	CONDITION	SUGGESTED SOLUTIONS
The machine is not		• Unplug the power cord and plug it in again.
working, there is no		• Ensure that there is power being supplied to
display and the		the electrical outlet.
buttons are not
working.
No dial tone sounds.		• Check that the phone line is properly
		connected.
		• Check that the phone socket on the wall is
		working by plugging in another phone.
The numbers stored		Make sure that the numbers are stored in
in memory do not		memory correctly. Print a Fax Phone Book
dial correctly.		list. (See "In the multi-purpose tray" on
		page96)
The original does not		• Make sure that the paper is not wrinkled and
feed into the		you are inserting it in correctly. Check that
machine.		the original is the right size, not too thick or
		thin.
		• Make sure that the DADF is firmly closed.
		• The DADF rubber pad may need to be
		replaced. Contact a service representative.
Faxes are not		• The receiving mode should be set to Fax.
received		• Make sure that there is paper in the tray.
automatically.		• Check to see if the display shows any error
		message. If it does, clear the problem.
The machine does		• Make sure that the original is loaded in the
not send.		DADF or on the scanner glass.
		• Check the fax machine you are sending to,
		to see if it can receive your fax.

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