Obviously the SANE driver list of Netrunner is not the recent one. With Maui I could install the repository of Rolf Bensch (https://launchpad.net/~rolfbensch/+archive/ubuntu/sane-git) by using the orders
sudo add-apt-repository ppa:rolfbensch/sane-git
sudo apt-get update
After a restart of Maui the new SANE drivers were installed and I could use my Canon MG5750 for scanning. I tried the same procedure here. But the Konsole tells me that it don’t want to allow this repository.
How can I install the recent SANE drivers to make my Scanner working?