
Troubleshooting
9.32
I can’t print when I 
installed both Linux 
Print Package (LPP) and 
MFP driver on the same 
machine 
simultaneously.
• Since both Linux Printer Package and MFP driver make a 
symbolic link to “lpr” printing command, which is 
commonly used on Unix clones, it is not recommended to 
use both package on the same machine. 
• If you still want to use both packages simultaneously, 
please install the LPP first. 
• If you want to uninstall only one of them, please uninstall 
both packages and install that one you want to use again. 
• If you don’t want to uninstall MFP driver and install it 
again, you may make the necessary symbolic link yourself. 
Please, log in as root user and invoke the following 
command:
 ln -sf /usr/local/bin/xerox/slpr /usr/bin/lpr
Can’t 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 MFP port 
device file” when 
printing a document.
Please avoid changing print job parameters (via SLPR utility, 
for example) while a print job is in pr ogress. 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 Linux MFP driver locks MFP port while 
printing, the abrupt termination of the driver keeps the port 
locked and therefore unavailable for subsequent print jobs. If 
this situation occurred, please, try to release the MFP port. 
Problem Possible Cause and Solution