Comment 1 for bug 55283

smurf wrote:

> if I try to print a test page it says:
> Unsupported format 'application/postscript'!

> If I try to print from command line this is the result:

> luca@luca:~$ lp file.txt
> lp: Unsupported format 'text/plain'!

This is stange, do you have the file /etc/cups/mime.types?
This file contains the mime types known to CUPS, are "application/postscript" and "text/plain" listed in this file?

Could you also give the output of the following commands?

$ lpinfo -v
This shows the printer devices detected by CUPS.

$ /usr/lib/cups/backend/usb
This should indicate if the usb backend supports your printer.