I managed to get my printer back to work in 20.04 by installing hplip from ubuntu repo (3.20.3+dfsg0-2), and then following this hint to install the hp-plugin:
https://askubuntu.com/a/1248018
I had to type "cont" and press return after the depicted command to start the process.
I managed to get my printer back to work in 20.04 by installing hplip from ubuntu repo (3.20.3+dfsg0-2), and then following this hint to install the hp-plugin:
https:/ /askubuntu. com/a/1248018
I had to type "cont" and press return after the depicted command to start the process.