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Troubleshooting

Common Linux problems

CONDITION

SUGGESTED SOLUTIONS

The printer 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. Ensure that your printer is 

displayed on the list. If not, invoke Add new 

printer wizard to set up your device.

•

Check if the printer is started. Open Printers 

configuration and select your printer 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 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 CUPS (Common Unix Printing System) 

version distributed with SuSE 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 known bug in Ghostscript (until GNU 

Ghostscript version 7.xx) when the base color 

space of the document is indexed RGB 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 8.xx or later. You can 

find recent Ghostscript versions at 

www.ghostscript.com.

The printer 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 earlier 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-end.

•

Check if Gimp Front-end has “Xsane: Device 

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 

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 error 

“Cannot open port 

device file” when 

printing 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 

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. 

CONDITION

SUGGESTED SOLUTIONS