connected printer install, Hplip?

Hp Office Jet 4650 UbuntuMate 20.04 Did not install correctly. If I send a job to the Server it will print one page. If I 'add' the printer I get the error that the printer is disconnected, but it is obviously connected (by USB) if the server can find it and communicate with it. The same computer, and printer were working fine with UbuntuMate 18.04.

I've been struggling with this for several days. I tried to delete and renew the HPlip,so I may have messed up something else, but the problem is stil the same.

Any help you can give me would be appreciated.