I've used my old HP Laserjet 4050 with Ubuntu 16.04 without problems so far. It just appeared when I connected my computer to my home-network. But recently, in order to test a HP Deskjet 1010, I had to install HPLIP from sourceforge, as far as I remember. And now, nothing works anymore. Firts, the printer was 'paused' and no it gives an error. There seems to be something missing, but how do I get it there?
Screendump from my cups interface:
