You can try to install manually like in https://forum.zorin.com/t/upgrading-hplip-in-zorin-os-for-scanner/1166/5, but I couldn't get libavahi-dev installed
You can try to install manually like in https:/ /forum. zorin.com/ t/upgrading- hplip-in- zorin-os- for-scanner/ 1166/5, but I couldn't get libavahi-dev installed