In the hope of solving the problem, I have completely de-installed (with --purge option) all printing-related packages and reinstalled them all. It did not work out and the output from the Macs is still gray.
Here are.the requested files (after the reinstall). ** Attachment added: "some files from /etc/cups and /usr/share/cups" http://launchpadlibrarian.net/52772296/cups-files.tgz ** Changed in: gutenprint (Ubuntu) Status: Incomplete => In Progress -- Print quality degraded when printing from a Mac onto a CUPS server under Ubuntu https://bugs.launchpad.net/bugs/511550 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