Le 21/04/2017 à 18:44, m.roth at 5-cent.us a écrit : > Firewall open on the port... no, you said it sends some signal, since it > prints out a blank page. And CUPS on your box is configured to understand > the printer, right? I have a few sandbox machines in this office, so I experimented some more, and here's what I found. 1. Vanilla installation of CentOS 7 + GNOME = works fine 2. Custom installation of CentOS 7 with KDE = prints blank page So I guess the RHEL maintainers forgot a little dependency somewhere. By the way, when I print from the KDE client, a peek in /var/log/cups/* shows me that everything is fine, even though the printer printed a blank page. So... printer ejecting blank paper, CUPS thinking everything's OK, what package might be missing? Cheers, Niki -- Microlinux - Solutions informatiques durables 7, place de l'église - 30730 Montpezat Web : http://www.microlinux.fr Mail : info at microlinux.fr Tél. : 04 66 63 10 32