76 _Troubleshooting

Common Linux problems

CONDITION SUGGESTED SOLUTIONS
The machine does
not print. • Check if the printer driver is installed in your
syste m. Op en Unified Driver conf igu r ato r
and swit ch to the Print ers tab in Printers
configuration window to look at the list of
available printers. Make sure that your
machi ne is disp layed on the list. If no t, invoke
Add new p rinte r wiz ard to se t up your device.
• Check if the printer is started. Open Printers
config uration a nd sele ct you r mac hine on the
printers list. Look at the description in the
Selected printer pane. If its status contains
“(stopped)” string, press the Start button.
After that normal operation of the printer
should be restored. The “stopped” status
might be activate d when some problems in
prin ting oc c urred . F or i ns tanc e, thi s co uld be
an attempt to print document when port is
claim ed by a sca nni ng app lic ation.
• Check if the po rt is not busy. Si nce func tional
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 av oid possible conflicts, only
one of them at a time is allowed to gain
control over the device. The other
“consumer” will encounter “device busy”
respons e. You sh ould open ports
configuration and s el ect the port assigned to
your printer. In the Selected port pane you
can se e if th e p ort is oc cupie d by s ome 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 pr esent owner is no t functioning
properly.
• Check if your application has special print
option such as “-oraw”. If “-oraw” is specified
in the com m and lin e para me ter th en re mov e
it to pri nt properl y. For Gimp front-end, select
“print” -> “Setup printer” and edit command
line parameter in the command item.
• The CUPS (Common Unix Printing System)
version distributed with S uSE Linux 9.2
(cups-1.1.21) has a problem with ipp
(Internet Printing Protocol) printing.Use the
socket printing instead of ipp or install later
version of CUPS (cups-1.1.22 or higher).
Some color images
come out all black. This is a known bug in Ghostscript (until GNU
Ghostscript version 7.05) when the base color
space of the document is indexed color space
and it is converted through CIE color space.
Because Postscript uses CIE color space for
Color Matching System, you should upgrade
Ghostscript on your system to at least GNU
Ghostscript version 7.06 or later. You can find
recent Ghostscript versions at
www.ghostscript.com.
Some color images
come out in
unexpected color.
This is a k nown bug in Gho s tscript (until GNU
Ghostscript version 7.xx) when the base color
space of th e document is indexed RGB color
space and it is converted through CIE color
space. Be cause Postscript u s es CIE color
spac e for Color Matching System, you sho uld
upgrade Ghost s cript on your system to at least
GNU Ghos ts cri pt v ers io n 8.x x or la ter. Yo u c an
find recent Ghostscript versions at
www.ghostscript.com.
The machine does
not print whole pages
and its output is half
page printed.
It is a known problem that occurs when a color
printer is used on version 8.51 or ear lier of
Ghostscript, 64-bit Linux OS, and reported to
bugs.ghostscript.com as Ghostscript Bug
688252.
The problem is solved in AFPL Ghostscript v.
8.52 or above. Download the latest version of
AFPL Ghostscript from http://sourceforge.net/
projects/ghostscript/ and install it to solve this
problem.
I cannot scan via
Gimp Front-e nd. • Check if Gi mp Front-e nd has “Xsane: Devic e
dialog.” on the “Acquire” menu. If not, you
should install Xsane plug-in for Gimp on the
your computer. You can find Xsane plug-in
packag e for Gimp on Linux d istribution C D or
Gimp home page. For the detail information,
refer to the Help for Linux distribution CD or
Gimp Front-end application.
If you wi sh to us e ot her k ind of s ca n app li cat ion ,
refer to the Help for application.
I encounter error
“Cannot open port
device file” when
print ing a document.
Avoid changing print job parameters (via LPR
GUI, for example) while a print job is in
progress. Known versions of CUPS server
break the print job whenever print options are
change d a nd the n try to re sta rt th e j ob from th e
beginning. Since Unified Linux Driver locks port
while printing, the abrupt termination of the
driver keeps the port locked and ther efore
unavailable for subsequent print jobs. If this
situation occurred, try to release the port.
CONDITION SUGGESTED SOLUTIONS