The fix is in fact more complex than I thought. The problem was access to /usr/lib/backend/paralell For some reason (don't know if it's me or the distro), /usr/lib/backend folder had priviledges 700. This was fixed for me as follows: chmod 755 /usr/lib/backend Then remove and add back the printer in cups web interface -- Lancelot du Lac http://www.contrees-du-reve.com