I have the same issue, unable to print using an HP DeskJet3720 since upgrading to 20.04, none of the HP apps open - the icons appear but nothing happens. I tried the advice in the above two posts and it made no difference. I ve tried older versions of HPLIP still no joy.
When reinstalling using the command given in post #4 I was asked to use current config or the standard one (or manufacturers cant remember the actual term) I chose my current config, tried the command again (in order to pick the other option) but I dont get the same prompt. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1879649 Title: Since I upddated to Ubuntu 20.04 my HP printer doesn't print To manage notifications about this bug go to: https://bugs.launchpad.net/hplip/+bug/1879649/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs