HP Printer Won't Scan in Big Sur

I have an HP Envy 7640. I updated my MacBook Pro to Big Sur about a month ago. I can print, but I just tried to scan something and am getting the message that it will damage my computer and won't work. I had this problem last fall after an iOS update before Big Sur, and I couldn't print or scan. When that happened an uninstall and reinstall of the printer worked. This time I updated the Firmware from HP as suggested, but no luck. I then uninstalled the printer and reinstalled it using HP's app HP Smart, and still no luck. I've read some suggestions on this forum, but nothing seems to be working and most only address printing, not scanning. Some are saying it's HP, and others are saying it's Apple. What is going on, and any suggestions as to how to scan in Big Sur without a 3rd party app?