First: thank you very much guys.
Printing works fine!
Scanning not so much. There is still the
"SCANNER" is already registered. issue. Anyone has an idea how to get that fixed?
Is it maybe possible to insert
name=SCANNER1 or something like that, or is this a fixed designation? (sorry if that's a dumb question, I'm pretty bad with Terminal/commands/coding and so on) to try with the other/right IP address?
riffer thanks for the installation advice! Is your "scanning problem" similar to mine or at which point are you stuck?
If I get this fixed Solus is pretty much set up for my needs at the time. I'm really grateful for the good and friendly help here in the forum!
EDIT: according to the Software center sane-backends ist installed/was already installed before I started trying to add the scanner but thx for the advice!