In Debian, I have been successful with the attached patch against 3.20.9. It's basically a revert to the state of these printers at the state of models.dat in the 3.20.5 version.
** Patch added: "0076-3.20.6-regression-In-models.dat-take-3.20.5-s-plugin.patch" https://bugs.launchpad.net/hplip/+bug/1883898/+attachment/5421380/+files/0076-3.20.6-regression-In-models.dat-take-3.20.5-s-plugin.patch -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1883898 Title: version 3.20.6 turns off plugin requirement for most printers To manage notifications about this bug go to: https://bugs.launchpad.net/hplip/+bug/1883898/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs