As it's coming up to the first anniversary of the bug, I thought I would mention that I too have run into it. I normally use Ubuntu 12.04 but I'm trying out Ubuntu 16.04, so my first reaction was that the user interface for CUPS must have changed.
However I got pointed to this page and succeeded with the above mentioned fix of changing line
"ExecStart=/usr/bin/cupsd -l"
to
"ExecStart=/usr/bin/cupsd -f"
in /lib/systemd/system/cups.service
and then
"systemctl daemon-reload"
As it's coming up to the first anniversary of the bug, I thought I would mention that I too have run into it. I normally use Ubuntu 12.04 but I'm trying out Ubuntu 16.04, so my first reaction was that the user interface for CUPS must have changed.
However I got pointed to this page and succeeded with the above mentioned fix of changing line /usr/bin/ cupsd -l" /usr/bin/ cupsd -f" system/ cups.service
"ExecStart=
to
"ExecStart=
in /lib/systemd/
and then
"systemctl daemon-reload"