14.19 <
Troubleshooting>
Common Linux problems
Problem Possible Cause and Solution
The machine does not
print
• Check if the printer driver is installed in
your system. Open Unified Driver
configurator and switch to the Printers
tab in Printers configuration window to
look at the list of available printers. Make
sure that your machine is displayed on
the list. If not, please, invoke Add new
printer wizard to set up your device.
• Check if the printer is started. Open
Printers configuration and select your
machine on the printers list. Look at the
description in the Selected printer pane.
If its status contains “(stopped)” string,
please, press the OK button. After that
normal operation of the printer should be
restored. The “stopped” status might be
activated when some problems in
printing occurred. For instance, this
could be an attempt to print document
when port is claimed by a scanning
application.
• 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 of different
“consumer” application to the same port
is possible. To avoid possible conflicts,
only one of them at a time is allowed to
gain control over the device. The other
“consumer” will encounter “device busy”
response. You should open ports
configuration and select the port
assigned to your printer. 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 owner is not
functioning properly.
• Check if your application has special
print option such as “-oraw”. If “-oraw” is
specified in the command line parameter
then remove it to print properly. For
Gimp front-end, select “print” -> “Setup
printer” and edit command line
parameter in the command item.
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 Unified Driver configurator, switch
to Scanners configuration, then press
Drivers. Make sure that driver with a
name corresponding to your machine's
name is listed in the window. 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 of different “consumer”
application to the same port is possible.
To avoid possible conflicts, only one of
them at a time 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 appears.
• 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 should press Release
port button, if you are sure that the
present port's owner is not functioning
properly.
Problem Possible Cause and Solution