Samsung SCX 4725FN User Manual

13.3   
3 Open the rear cover.
4 Pull the jammed paper out.
Caution  
Inside of the machine is very hot. Take care when removing paper 
from the machine.
5 Close the rear cover. Printing automatically resumes.
Tips for avoiding paper jams
By selecting the correct media types, most paper jams can be avoided. 
When a paper jam occurs, follow the steps outlined on page 13.1. 
• Follow the procedures on page 5.5. Ensure that the adjustable guides 
are positioned correctly.
• Do not overload the tray.
• Do...

13.4   
[Low Heat Error] There is a problem 
in the fuser unit. Unplug the power cord 
and plug it back in. If the 
problem persists, please 
call for service.
[LSU Error] A problem has 
occurred in the LSU 
(Laser Scanning 
Unit). Unplug the power cord 
and plug it back in. If the 
problem persists, please 
call for service.
[No Answer] The receiving fax 
machine has not 
answered after 
several redial 
attempts. Try again. Make sure that 
the receiving machine is 
operational.
[No Paper]
Add Paper The...

13.5   
Toner cartridge-related messages
Power Failure Power has turned off 
then on and the 
machine’s memory 
has not been back 
up. The job which you were 
trying to do before the 
power failure must be 
completely re-done.
Retry Redial? The machine is 
waiting for a 
specified time 
interval to redial a 
previously busy 
station. You can press 
Enter to 
immediately redial, or 
Stop/Clear  to cancel the 
redial operation.
Scanner locked The scanner module 
is locked. Unlock the scanner and 
press...

13.6   
Paper does not 
feed into the 
machine.• Remove any obstructions from inside the machine.
• Paper has not been loaded correctly. Remove 
paper from the tray and reload it correctly.
• There is too much paper in the tray. Remove  excess paper from the tray.
• The paper is too thick. Use only paper that meets  the specifications required by the machine. See 
page 5.7.
• If an original does not feed into the machine, the  ADF rubber pad may require to be replaced. See 
page 12.6.
The paper keeps...

13.7   
The 
machine 
selects print 
materials 
from the 
wrong 
paper 
source. The paper source 
selection in the 
printer properties 
may be incorrect.
For many software 
applications, the paper 
source selection is found 
under the 
Paper
 tab within 
the printer properties. Select 
the correct paper source. 
See the printer driver help 
screen.
A print job 
is extremely 
slow. The job may be very 
complex.
Reduce the complexity of the 
page or try adjusting the print 
quality settings.
If you are...

13.8   
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. 
ConditionSuggested solutions
Light or faded printIf a vertical white streak or faded area appears 
on the page:
• The toner supply is low. You may be able to 
temporarily extend the toner cartridge life. See 
page 12.4. If this does not improve the print 
quality, install a new toner cartridge.
• The paper...

13.9   
Background scatterBackground scatter results from bits of toner 
randomly distributed on the printed page. 
• The paper may be too damp. Try printing with 
a different batch of papers. Do not open 
packages of paper until necessary so that the 
paper does not absorb too much moisture.
• If background scatter occurs on an envelope,  change the printing layout to avoid printing 
over areas that have overlapping seams on 
the reverse side. Printing on seams can cause 
problems.
• If background...

13.10   
Horizontal stripesIf 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 
page 12.4.
• If the problem persists, the machine may 
require repair. Contact a service 
representative.
CurlIf the printed paper is curled or paper does not 
feed into the machine:
• Turn over the stack of paper in the tray. Also try...

13.11   
Scanning problems
ConditionSuggested solutions
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...

13.12   
Common Windows problems
Note
Refer to Microsoft Windows 98/Me/2000/XP(32/64bit)/2003
(32/64bit) User’s Guide that came with your PC for further 
information on Windows error messages.
Faxes do not store 
in memory. 
There may not be enough memory space to store 
the fax. If the display shows the 
Memory Full 
message, delete from memory any faxes you no 
longer need and then try again to store the fax.
Blank areas 
appear at the 
bottom of each 
page or on other 
pages, with a small 
strip of...