12.24 <Troubleshooting>
The machine does
not appear on the
scanners list.
• Check if your machine is attached to your
computer. Make sure that it is connected
properly via the USB port and is turned on.
• Check if the scanner driver for your machine is
installed in your system. Open the Unified
Driver configuration tool, switch to Scanner
configuration, then press
Drivers
. Make sure
that the window lists a driver with a name
corresponding to your machine's name. Check
if the port is not busy. Since functional
components of MFP (printer and scanner)
share the same I/O interface (port), the
situation of simultaneous access to different
“consumer” applications using the same port is
possible. To avoid possible conflicts, only one
of them is allowed to gain control over the
device at a time. The other “consumer” will
encounter a “device busy” response. This
usually happens while starting the scan
procedure, and an appropriate message box
appears.
• To identify the source of the problem, you
should open ports configuration and select the
port assigned to your scanner. The port 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 with some other
application. If this is the case, you should wait
for completion of the current job or you should
press the Release port button, if you are sure
that the port owner is not functioning properly.
Problem
Possible Cause and Solution
The machine does
not scan.
• Check if a document is loaded into the
machine.
• Check if your machine is connected to the
computer. Make sure it is connected properly if
an I/O error is reported while scanning.
• Check if the port is not busy. Since functional
components of MFP (printer and scanner)
share the same I/O interface (port), the
situation of simultaneous access for different
“consumer” applications to the same port is
possible. To avoid possible conflicts, only one
of them is allowed to gain control over the
device at a time. The other “consumer” will
encounter “device busy” response. This
usually happens while starting the scan
procedure, and an appropriate message box
will be displayed.
To identify the source of the problem, you
should open ports configuration and select the
port assigned to your scanner. 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 you should
press the Release port button, if you are sure
that the port owner is not functioning properly.
I cannot scan via
Gimp Front-end.
• Check if Gimp Front-end has “Xsane: Device
dialog.” on the “Acquire” menu. If not, you
should install the Xsane plug-in for Gimp on
your computer. You can find Xsane plug-in
package for Gimp on downloaded Linux
package (from Samsung website) or on the
Gimp home page. For detailed information,
refer to Help for Linux or Gimp Front-end
application.
If you wish to use an other kinds of scan
applications, refer to the Help for application.
I encounter error
“Cannot open port
device file” when
printing a document.
Please avoid changing print job parameters (via
LPR GUI, for example) while a print job is in
progress. Known versions of CUPS server cut off
the print jobs whenever print options are changed
and then try to restart the job from the beginning.
Since Unified Linux Driver locks port while
printing, the abrupt termination of the driver
keeps the port locked and therefore unavailable
for subsequent print jobs. If this situation
occurred, try to release the port.
Problem
Possible Cause and Solution