I have the same problem, but I moved the apparmor file, usr.sbin.cupsd, to /etc/apparmor.d/disable and restarted apparmor: "service apparmor restart".
I have the same problem, but I moved the apparmor file, usr.sbin.cupsd, to /etc/apparmor. d/disable and restarted apparmor: "service apparmor restart".