My Samsung printer broke about 2 weeks ago with this error and I have not been able to get it working again. I have upgraded all my cups packages to the latest (1.3.9-7) and went through the gs-eps procedure here.
Printing the test page from the cups web interface gives me: Unsupported format 'application/postscript'! Printing from Konqueror gives me: A print error occurred. Error message received from system: cupsdoprint -P 'Samsung_ML2510_Laser' -J '' -H '/var/run/cups/cups.sock:631' -U 'michael' -o ' copies=1 orientation-requested=3' '/tmp/kde-michael/kghostview0a1jub.ps' : execution failed with message: client-error-document-format-not-supported # grep -H "*NickName" /etc/cups/ppd/*.ppd /etc/cups/ppd/ML-2510_Series.ppd:*NickName: "Samsung ML-2510, 1.1.0" /etc/cups/ppd/Samsung_ML2510_Laser.ppd:*NickName: "Samsung ML-2510, 1.1.0" # lpstat -v device for Samsung_ML2510_Laser: usb://Samsung/ML-2510%20Series # ls -l /etc/cups/*.types /etc/cups/*.convs -rw-r--r-- 1 root root 4409 2008-12-01 13:48 /etc/cups/mime.convs -rw-r--r-- 1 root root 6184 2008-04-23 02:14 /etc/cups/mime.types -rw-r--r-- 1 root root 60 2008-04-01 17:46 /etc/cups/oopstops.convs -rw-r--r-- 1 root root 88 2008-04-01 17:46 /etc/cups/oopstops.types -rw-r--r-- 1 root root 50 2008-11-20 16:40 /etc/cups/pstopdf.convs -rw-r--r-- 1 root root 946 2006-09-29 05:58 /etc/cups/pstoraster.convs -rw-r--r-- 1 root root 242 2008-05-22 02:49 /etc/cups/raw.convs -rw-r--r-- 1 root root 213 2008-05-22 02:49 /etc/cups/raw.types # cat /etc/cups/*.types /etc/cups/*.convs | grep "text/plain" text/plain txt printable(0,1024) text/plain application/postscript 33 texttops # ls -l /usr/lib/cups/filter/texttops -rwxr-xr-x 1 root root 54976 2008-11-20 16:44 /usr/lib/cups/filter/texttops # grep -H "application/vnd.cups-raster" /etc/cups/*.types /etc/cups/mime.types:application/vnd.cups-raster string(0,"RaSt") string(0,"tSaR") # cat /etc/cups/*.convs | grep pstoraster # pstoraster is part of GPL Ghostscript... application/vnd.cups-postscript application/vnd.cups-raster 100 pstoraster # "$Id: pstoraster.convs,v 1.1.2.3 2003/07/20 22:54:45 mike Exp $" application/vnd.cups-postscript application/vnd.cups-raster 100 pstoraster # End of "$Id: pstoraster.convs,v 1.1.2.3 2003/07/20 22:54:45 mike Exp $". # grep -H "application/vnd.cups-command" /etc/cups/*.types /etc/cups/*.convs /etc/cups/mime.types:application/vnd.cups-command string(0,'#CUPS-COMMAND') -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]