Xerox Printer fwww Manuale Utente

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<Troubleshooting>

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).

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 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 
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.

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.