Summary: We have about a dozen canon scanners are very familiar with their products. This was advertised as new in box, but it was not. It was more likely an item that had been purchased and then returned or it was just used. It did not have the normal software and other items. First it only produces are 20 simplex images per minute when it supposed to do double this amount. It also consistently breaks down. It has a lift system that operates by a senor and it just doesn't work.
Summary: As other reviewers have pointed out, the machine does not have appropriate driver to support Windows Vista, Windows 7 and Mac OSX. I paid $2000+ for the machine. For a machine at that price range, you would expect the manufacturer to stand behind their product. Canon does a good job in supporting their cameras. Not for their scanners unfortunately.
Summary: I do not own this product. I own 2 Canon DR2080C document scanners. Quite frankly they worked well. I wish they still did. Canon elected not to support this product with drivers for Vista or Windows 7. The DR2080C is a high-speed, double-sided light-commercial scanner costing more than $400. One would think Canon would support such a product (it's not an $89 printer).
Summary: This scanner is amazing. We have it configured to scan 200 dpi color and it just flies through stacks of paper that are all sizes and thicknesses. As long as the 1/4th and 1/8th sheet papers are aligned at the center they never get missed. The ultrasonic double-feed connection is working extremely well too. We've tried all kinds of things to fake it out but it has always successfully detected double feeds. Clearing jams and double feeds are a piece of cake.