You seem to be missing the /etc/cups/pstoraster.convs file which is part of gs-esp.
Please give the output of the following command: $ dpkg -L gs-esp | grep pstoraster
Then reinstall gs-esp with following command and afterwards check if the file is present: $ sudo apt-get --reinstall install gs-esp
Restart cups: $ sudo /etc/init.d/cupsys restart
Reinstall your printer with the original ppd for your printer that came with Ubuntu.
Try to print a postscript and text file from the command line: $ lp file.ps $ lp file.txt
You seem to be missing the /etc/cups/ pstoraster. convs file which is part of gs-esp.
Please give the output of the following command:
$ dpkg -L gs-esp | grep pstoraster
Then reinstall gs-esp with following command and afterwards check if the file is present:
$ sudo apt-get --reinstall install gs-esp
Restart cups:
$ sudo /etc/init.d/cupsys restart
Reinstall your printer with the original ppd for your printer that came with Ubuntu.
Try to print a postscript and text file from the command line:
$ lp file.ps
$ lp file.txt