And how do I install them manually? The program crashes at every attempt as you see in the 2 screenshots from the first comment.
"install the required plug-in" I suppose thats the one.
Or is it some other way to do that?
Edit: I have ask in the bug report about this:
"HPLIP is installed by default, but a part of software (firmware) that is not included in HPLIP must installed manually."
I suppose the developers know how you do.