perpetual printer problems

[mahesh]

I have a fairly new hp deskjet 4155e printer that has suddenly and unaccountably stopped printing from my ubuntu 20.04. It works from all my hand-held devices as well as my wife's hand-held devices. It just won't work with the desktop where I do all my work. I installed the latest hplip from hp which used to correct the problem but nothing at all. It's listed in the printer settings and everything seems just fine. It just doesn't print. Any suggestions?