Just a tip for those setting up cups to let windows clients print via IPP.... Remove any commas from the nickname line in /etc/cups/cupsd.conf. There's a bug in windows where it doesn't like the commas. And don't use ipp:// when setting up windows clients, you have to use a URL of the form "http://myhost:631/printers/myprintername" Spent like 2 hours troubleshooting this, and finally found the answer to the comma problem on a page written in swedish. :) Note that you'll need to put "AuthType None" under the location sections for "/" and "/printers" since it appears that windows doesn't like authentication over IPP. Jay