After having done the blacklisting test and reported here, undo the blacklisting by removing /etc/modprobe.d/blacklist-usblp.conf and turning off and turning on your printer again. Then please add my PPA to your system as described on
and update your system. This should give you an update of the CUPS packages (version 1.5.2-9ubuntu1.1~ppa2). Please cancel all jobs and turn off and turn on your printer again. Then try whether your problem gets solved.
After having done the blacklisting test and reported here, undo the blacklisting by removing /etc/modprobe. d/blacklist- usblp.conf and turning off and turning on your printer again. Then please add my PPA to your system as described on
https:/ /launchpad. net/~till- kamppeter/ +archive/ ppa
and update your system. This should give you an update of the CUPS packages (version 1.5.2-9ubuntu1. 1~ppa2) . Please cancel all jobs and turn off and turn on your printer again. Then try whether your problem gets solved.