Summary: I have had one of these scanners from new. It was very expensive at the time. I have never ever been able to make it work.I have tried downloading drivers and it just opens ADOBE IMAGE READY or Canon tool box. Total waste of money so far as I am concerned.
Summary: I have purchased two of these scanners because I was hoping that the first one was defective. It was, and I think the second one was too! The closest I can come to describing the problem is to say that there was condensation under the flatbed glass. It dried and left a residue that shows up on every scan. The first time I thought this was a fluke (although I had read a review that said it happened to them.) so I returned it and ordered another.
Summary: A significant use for which I bought this scanner was for my wife and me to make copies on my printer using the one-button. I installed it today and, to my dismay, it didn't work. After two hoours on the phone with Canon tech support, Canon gave up and said it won't work with a laser printer. I have a laser printer with 1700 KB memory but it wasn't enough. This is a warning to prospective purchasers.