Samsung SCX-4521F, SCX-4321 manual Common Macintosh Problems, Problems in Printer Setup Utility

Problem	Possible Cause and Solution
I can’t print	• Since both Linux Printer Package and MFP driver make a
when I	symbolic link to “lpr” printing command, which is
installed both	commonly used on Unix clones, it is not recommended to
Linux Print	use both package on the same machine.
Package (LPP)	• If you still want to use both packages simultaneously,
and MFP driver	please install the LPP first.
on the same	• If you want to uninstall only one of them, please uninstall
machine	both packages and install that one you want to use again.
simultaneously.	• If you don’t want to uninstall MFP driver and install it
	again, you may make the necessary symbolic link
	yourself. Please, log in as root user and invoke the
	following command:
	ln -sf /usr/local/bin/samsung/slpr /usr/bin/lpr
Can’t scan via	• Check if Gimp Front-end has “Xsane:Device dialog..” on
Gimp Front-	the “Acquire” menu. If not, you should install Xsane plug-
end.	in for Gimp on the your computer. You can find Xsane
	plug-in package for Gimp on Linux distribution CD or
	Gimp home page. For the detail information, refer to the
	Help for Linux distribution CD or Gimp Front-end
	application.
	If you wish to use other kind of scan application, refer to
	the Help for application.
I encounter	Please avoid changing print job parameters (via SLPR
error “Cannot	utility, for example) while a print job is in progress. Known
open MFP port	versions of CUPS server break the print job whenever print
device file”	options are changed and then try to restart the job from
when printing	the beginning. Since Linux MFP driver locks MFP port while
a document.	printing, the abrupt termination of the driver keeps the port
	locked and therefore unavailable for subsequent print jobs.
	If this situation occurred, please, try to release the MFP
	port.

Common Macintosh Problems

Problems in Printer Setup Utility

Problem	Possible Cause and Solution
There is described	• Software is not installed correctly. Reinstall the
"driver not	software. See Software User’s Guide.
installed" at Product	• Make sure that you are using a high-quality cable.
List Window after
you click Add and
Select USB.
Your product not	• Make sure that the cables are connected correctly
listed at Product	and the printer is turned on.
List Window after	• Check if “Ready” appears on the display of the
you click Add and	control panel. If not, clear the problem depending
Select USB.	on the error message; see “Clearing LCD Error
	Messages” on page 9.4.
	• Make sure that the correct printer driver has been
	selected at Product List Window after you click Add
	and Select USB.

9.13 Troubleshooting