Samsung 4200 Machine does, Can’t print when, Installed both Linux, Scanners list, Application

Condition	Suggested solutions	Condition	Suggested solutions
The machine does	• Check if the MFP port is not busy. Since functional	I can’t print when I	• Since both Linux Printer Package and MFP driver
not appear on the	components of MFP (printer and scanner) share the	installed both Linux	make a symbolic link to “lpr” printing command,
scanners list	same I/O interface (MFP port), the situation of	Print Package (LPP)	which is commonly used on Unix clones, it is not
(continued).	simultaneous access of different “consumer”	and MFP driver on	recommended to use both package on the same
	application to the same MFP port is possible. To	the same machine	machine.
	avoid possible conflicts, only one of them at a time	simultaneously.	• If you still want to use both packages
	is allowed to gain control over the device. The		simultaneously, please install the LPP first.
	other “consumer” will encounter “device busy”		• If you want to uninstall only one of them, please
	response. This can usually happen while starting		uninstall both packages and install that one you
	scan procedure, and appropriate message box		want to use again.
	appears.		• If you don’t want to uninstall MFP driver and install
	• To identify the source of the problem, you should		it again, you may make the necessary symbolic link
	open MFP ports configuration and select the port		yourself. Please, log in as root user and invoke the
	assigned to your scanner. MFP port's symbol /dev/		following command:
	mfp0 corresponds to LP:0 designation displayed in		ln -sf /usr/local/bin/samsung/slpr /usr/bin/lpr
	the scanners’ options, /dev/mfp1 relates to LP:1
		Can’t scan via Gimp	• Check if Gimp Front-end has “Xsane:Device
	and so on. USB ports start at /dev/mfp4, so
		Front-end.	dialog.” on the “Acquire” menu. If not, you should
	scanner on USB:0 relates to /dev/mfp4
			install Xsane plug-in for Gimp on the your
	respectively and so forth sequentially. In the
			computer. You can find Xsane plug-in package for
	Selected port pane you can see if the port is
	occupied by some other application. If this is the		Gimp on Linux distribution CD or Gimp home page.
			For the detail information, refer to the Help for
	case, you should wait for completion of the current
			Linux distribution CD or Gimp Front-end
	job or should press Release port button, if you are
			application.
	sure that the present port's owner is not
	functioning properly.		If you wish to use other kind of scan application,
			refer to the Help for application.
The machine doesn’t	• Check if a document is loaded into the machine.
		I encounter error	Please avoid changing print job parameters (via SLPR
scan.	• Check if your machine is connected to the
		“Unable to open MFP	utility, for example) while a print job is in progress.
	computer. Make sure if it is connected properly if I/
		port device file!”	Known versions of CUPS server break the print job
	O error is reported while scanning.
		when printing a	whenever print options are changed and then try to
	• Check if MFP port is not busy. Since functional
		document.	restart the job from the beginning. Since Linux MFP
	components of MFP (printer and scanner) share the
			driver locks MFP port while printing, the abrupt
	same I/O interface (MFP port), the situation of
			termination of the driver keeps the port locked and
	simultaneous access of different “consumer”
			therefore unavailable for subsequent print jobs. If
	application to the same MFP port is possible. To
			this situation occurred, please, try to release the MFP
	avoid possible conflicts, only one of them at a time
			port.
	is allowed to gain control over the device. The
	other “consumer” will encounter “device busy”
	response. This can usually happen while starting
	scan procedure, and appropriate message box will
	be displayed.
	To identify the source of the problem, you should
	open MFP ports configuration and select the port
	assigned to your scanner. MFP port’s symbol /dev/
	mfp0 corresponds to LP:0 designation displayed in
	the scanners’ options, /dev/mfp1 relates to LP:1
	and so on. USB ports start at /dev/mfp4, so
	scanner on USB:0 relates to /dev/mfp4
	respectively and so forth sequentially. In the
	Selected port pane you can see if the port is
	occupied by some other application. If this is the
	case, you should wait for completion of the current
	job or should press Release port button, if you are
	sure that the present port’s owner is not
	functioning properly.

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Troubleshooting