I opened the printer app this morning and got a message that I needed to install an update. I installed the update, and now I can no longer scan. Scanning was working fine before. I can still print. When I try to scan something from either the doc feeder or the flatbed, it says "an unknown error has occurred."
I have tried reinstalling the Scan driver, restarting the printer and my computer. no change.
Thank you in advance for any help.