Note on the workaround, if you find your printer drops out of the list on the Mac client, typing this at the terminal on the client helped for me:
cupsctl BrowseRemoteProtocols=cups Found from http://lists.apple.com/archives/printing/2007/Nov/msg00017.html -- CUPS DNS-SD (Bonjour/mDNS/Zeroconf/Avahi) not broadcasting https://bugs.launchpad.net/bugs/465916 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs