Stéphane, can you check whether the usblp kernel module is blacklisted for you. If it is blacklisted and therefore you did the tests with the module blacklisted, please remove the blacklisting via
cancel -a mv /etc/modprobe.d/blacklist-cups-usblp.conf ~ sudo rmmod usblp sudo modprobe usblp
turn off and turn on the printer and test again. Thanks.
Stéphane, can you check whether the usblp kernel module is blacklisted for you. If it is blacklisted and therefore you did the tests with the module blacklisted, please remove the blacklisting via
cancel -a d/blacklist- cups-usblp. conf ~
mv /etc/modprobe.
sudo rmmod usblp
sudo modprobe usblp
turn off and turn on the printer and test again. Thanks.