Aaron: please ignore my previous message. Your suggestion works! I had forgotten to connect then USB cable the first time. :-)
In short: after adding myself (user pjotr) to the scanner group, HPLIP Toolbox can be started with no errors, as user.
I still am a bit mystified as to what this printer is doing in the scanner group.... :-)
Aaron: please ignore my previous message. Your suggestion works!
I had forgotten to connect then USB cable the first time. :-)
In short: after adding myself (user pjotr) to the scanner group, HPLIP Toolbox can be started with no errors, as user.
I still am a bit mystified as to what this printer is doing in the scanner group.... :-)