I recently replaced my MX350 printer with an identical new machine. I use Windows10 and a wireless connection (which is strong). Since swapping to the new printer, I can print without problem, but, when I try to scan from my computer I get an err...
I have had the problem solved by phoning the technical support line. Not sure what he did as he took control of my machine, but the end result is I'm a happy camper with a fully functional scanner. I had the model number wrong - it is a PIXMA MX532...