Doing the change proposed by pitti in the 55-hpmud.rules file, I can scan and see ink levels as unprivileged user (in group "scanner" but not in "lp"). Also printing as unprivileged user works for me. Also setting up print queues and Plug'n'Print work.
Doing the change proposed by pitti in the 55-hpmud.rules file, I can scan and see ink levels as unprivileged user (in group "scanner" but not in "lp"). Also printing as unprivileged user works for me. Also setting up print queues and Plug'n'Print work.
So I will upload HPLIP with these settings now.