Hello, I also had the not-very-helpful message from CUPS:
No destination host name supplied by cups-browsed for printer, is cups-browsed running? Of course, cups-browsed was well running and I even tried to restart it, also cups.service, etc. The solution I found, before reading this report, was inspired by this answer: https://askubuntu.com/a/1128869 Here it is. First some context: the printer is connected to <hostnameA> and printing from <hostnameB> first worked, then failed for the *very same document* in the *very same Okular instance*---I simply wanted to print two sets of pages from the same document, oh my... Solution (everything done on <hostnameB>): 1) I purged the cups-browsed package, even though cups-daemon recommends it. 2) Then I figured out I needed to do “Delete Printer” from the CUPS web administration page for the printer (otherwise, trying to do step 3 would fail with the incomprehensible error message “Unable to add printer:Cannot change printer-is-shared for remote queues.”—that, regardless of whether “Share printer” was being checked). 3) From the CUPS web administration page: Administration → Add Printer → Discovered Network Printers: Brother DCP-L2550DN (driverless) @ <hostnameA> (DCP-L2550DN DCP-L2550DN series) → ... → Add Printer (the button). Finally, I was able to print from <hostnameB>. Even though this solution is quite different from that proposed by Gabriel, this may very well be the same issue, because now that I've found this report, I see that my /var/log/syslog on <hostnameB> from before the fix has entries like: Sep 11 13:39:09 localhost kernel: [15658.624326] audit: type=1400 audit(...): apparmor="DENIED" operation="capable" profile="/usr/sbin/cupsd" pid=6811 comm="cupsd" capability=12 capname="net_admin" Sep 11 13:39:09 localhost kernel: [15658.718083] audit: type=1400 audit(...): apparmor="DENIED" operation="capable" profile="/usr/sbin/cups-browsed" pid=6814 comm="cups-browsed" capability=23 capname="sys_nice" Hope this helps other people. Regards, -- Florent
