Samsung Networked Color Multifunction Printer Manuale Utente

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<Troubleshooting>
I encounter error 
“Cannot open port 
device file” when 
printing a document.
Please avoid changing the 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, please, try to 
release the port. 
When printing a 
document over the 
network in SuSE 9.2, 
the machine does not 
print.
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).
Problem
Possible cause and solutions