Hello I had same effect with my HP PSC750. Your actions are alright, had to do this too. But i have also inserted support for raw-support. afterwards it worked. Don't forget to /sbin/service cupsd restart after your changes in mime.types and mime.convs are done. Let us know, whether this helped. Roger > [printers] > comment = All Printers > path = /var/spool/samba ... print command = lpr -r -o raw -P %p %s lpq command = lpstat -o %p lprm command = cancel %p-%j ... > > Cups > mime.convs has the following line uncommented: > application/octet-stream application/vnd.cups-raw 0 - > > mime.types has the following line uncommented: > application/octet-stream > > cups error log still indicates the following when I try to print to the > C80; > E [02/Feb/2004:12:13:22 -0600] print_job: Unsupported format > 'application/octet-stream'! > I [02/Feb/2004:12:13:22 -0600] Hint: Do you have the raw file printing > rules enabled? > > David Miller