Samsung SCX-4521FG manual Scanning Problems

Scanning Problems

Condition	Suggested solutions
The scanner does	• Make sure that you place the document to be
not work.	scanned face down on the document glass, or face
	up in the Automatic Document Feeder.
	• 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 USB or parallel cable is connected
	properly.
	• Make sure that the USB or parallel cable is not
	defective. Switch the cable with a known good
	cable. If necessary, replace the cable.
	• If you are using a parallel cable, ensure that it is
	compliant with IEEE 1284 standards.
	• 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, for example, LPT1.
The unit scans very	• Check if the machine is printing received data. If so,
slowly.	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.

Fax Problems (Only for SCX-4521F)

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 to the electrical outlet.
display and the
buttons are not
working.
No dial tone sounds.	• Check that the phone line is connected properly.
	• Check that the phone socket in the wall is working
	by plugging in another phone.
The numbers stored	Make sure that the numbers are stored in memory
in memory do not	correctly. Print a Phonebook list, referring to
dial correctly.	“Phonebook List” on page 7.13.

Condition	Suggested solutions
The document does	• Make sure that the document is not wrinkled and
not feed into the	you are putting it in correctly. Check that the
machine.	document is the right size, not too thick or thin.
	• Make sure that the ADF (Automatic Document
	Feeder) cover is firmly closed.
Faxes are not	• Fax mode should be selected.
received	• Make sure that there is paper in the tray.
automatically.	• Check to see if the display shows “Memory Full”.
The machine does	• Make sure that the document is loaded in the ADF
not send.	or on the document glass.
	• “TX” should show up on the display.
	• Check the fax machine you are sending to, to see
	if it can receive your fax.
The incoming fax has	• The fax machine sending you the fax may be
blank spaces or is of	faulty.
poor-quality.	• A noisy phone line can cause line errors.
	• Check your machine by making a copy.
	• The toner cartridge may be empty. Replace the
	toner cartridge, referring to “Replacing the Toner
	Cartridge” on page 8.4.
Some of the words	The fax machine sending you the fax had a
on an incoming fax	temporary document jam.
are stretched.
There are lines on	Check your scanning glass for marks and clean it.
the documents you	See “Cleaning the Scan Unit” on page 8.3.
send.
The machine dials a	The other fax machine may be turned off, out of
number, but a	paper, or cannot answer incoming calls. Speak with
connection with the	the other machine operator and ask her/him to sort
other fax machine	out the problem.
fails.
Documents are not	There may not be enough memory to store the
stored in memory.	document. If the display shows a “Memory Full”
	message, delete from memory any documents you
	no longer need and then try again to store the
	document.
Blank areas appear	You may have chosen the wrong paper settings in
at the bottom of each	the user option setting. For details about paper
page or on other	settings, see “Setting the Paper Size and Type” on
pages, with a small	page 2.11.
strip of text at the
top.

9.11 Troubleshooting