Samsung SCX-4725FN Manual De Usuario

13.11   

<Troubleshooting>

The scanner does 
not work.

• Make sure that you place the original to be 

scanned face down on the scanner glass, or 
face up in the ADF.

• 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 cable is connected 

properly.

• Make sure that the USB 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 
slowly.

• Check if the machine is printing received 

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 the BIOS setting. 
It will help to increase the speed. For details 
about how to set BIOS, refer to your 
computer user’s guide.

The machine is not 
working, there is no 
display and the 
buttons are not 
working.

• Unplug the power cord and plug it in again. 
• Ensure that there is power to the electrical 

outlet.

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 in memory 
do not dial 
correctly.

Make sure that the numbers are stored in 
memory correctly. Print a Phone Book list, 
referring to page 10.4.

The original does 
not feed into the 
machine.

• Make sure that the paper is not wrinkled and 

you are putting it in correctly. Check that the 
original is the right size, not too thick or thin.

• Make sure that the ADF is firmly closed.
• The ADF rubber pad may need to be replaced. 

See page 12.6.

Faxes are not 
received 
automatically.

• The receiving mode should be set to Fax.
• Make sure that there is paper in the tray.
• Check to see if the display shows any error 

messages. If it does, clear the problem.

The machine does 
not send.

• Make sure that the original is loaded in the ADF 

or on the scanner glass. 

• Sending 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 blank spaces 
or is of poor-
quality.

• The fax machine sending you the fax may be 

faulty. 

• 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 page 12.4. 

Some of the words 
on an incoming fax 
are stretched.

The fax machine sending you the fax had a 
temporary document jam. 

There are lines on 
the originals you 
send.

Check your scan unit for marks and clean it. See 
page 12.3.

The machine dials 
a number, but a 
connection with the 
other fax machine 
fails.

The other fax machine may be turned off, out of 
paper, or cannot answer incoming calls. Speak 
with the other machine operator and ask her/him 
to sort out the problem.