RE: [CentOS] CUPS Problem

When setting up a raw queue on the CentOS box, it might be necessary to

edit couple of files in /etc/cups.

mime.convs - uncomment this line:

#application/octet-stream application/vnd.cups-raw 0

mime.types - uncomment this line:

#application/octet-stream

I was going to suggest this as it seems to always fix printing problems with me. Just a few additional notes:

1) After editing file: service cups restart

2) If you do a yum update and there's any update done to cups, a default instance of the above file is put back in place and you have to re-edit the file.