Can no longer scan using Xerox WorkCentre 6515
I've successfully scanned using my Xerox WorkCentre 6515 for over 2 years. That is, until Big Sur. Now, all I get is "scanner error." No codes, no other information. Incredibly unhelpful. I have removed the printer/scanner from my preferences and reloaded it. I have rebooted the printer. The printer is working just fine I have no idea what to do next. Would be very grateful for any suggestions.
Thanks!
Bernie R.
iMac 21.5″, OS X 10.10