Summary: I have owned a number of scanners, but this one is absolutely the worst. SAVE YOUR MONEY!! The first one I received would not work at all. I did return for a replacement and it only works intermittently. I have contacted Canon Support on numerous occasions and they have not been able to resolve the problem(s). This was a HUGE waste of money, but I will toss it (probably out the windo so it shatters into a million pieces) and purchase an HP scanner.