I'm having the same issue and get the same error message. Can't anyone at Xerox address this post? It seems to be a 'known' problem.
I have this same problem. Did you ever find the solution?
The scanner has worked fine until I started to receive this error every time I press "Scan" in Easy Printer manager:
"The current processing has failed, probably, due to a lack of memory or disk space in your system or due to problems at the device side. Output images have not been saved"
I have tried rebooting, reinstalling the drivers, firmware upgrade, but it doesn't help and I am not able to use the scanner.
Does anyone how to fix this problem?