Susan, Thank you. Do you know the essence of what he did? I've had some success since I posted by quitting the scanner app and retrying to scan repeatedly. I'll get a connection, then an abort, then a re-connection on later tries. Very inconsist...
I'm suddenly having this exact same issue. Scanner has worked flawlessly for two years. Now a stream of "cannot communicate" errors, # 200010, 600104, and 210009 all seen. Sometimes scan will start and abort with error after a few pages, other time...