MacBook suddenly cant see Epson 7720 printer help?

My wife has successfully printed wirelessly from her MacBook to our Epson WF7720 for several years but in last 24 hours its lost the ability to see the printer. She’s just spent several hours trying to fix the problem, rebooting everything, updating her mac software etc and is now climbing the walls. I successfully printed from my windows 10 PC desktop just a few hours ago. Is this a problem others have seen? Could something have changed recently?