Summary: I purchased this scanner a little over a year ago, and it performed beautifully....until a week ago when I got a standard paper-feed jam on a single sheet I was trying to scan. As I have done many times before, I opened the front, removed the sheet and reset the scanner. It fed the sheet in a couple inches and then gave me an error message stating "Failed to calibrate the scanner.
Summary: The feeder jams at anything over two sheets of paper. If a piece of paper has a staple hole, the feeder jams. If a piece of paper was ever folded, the feeder jams. The manufacturer will not take the product back, so if you get one with a bad feeder you are stuck. I see all the great reviews, but my experience with the product has been very bad.
Summary: Comments about Fujitsu S510M: Received the product promptly. Did not come with a power cord. Two of the three software DVDs were missing. Not worth the hassle to buy a refurbished product. Obviously zero quality control when it comes to packaging.
Summary: Well, Adobe Acrobat Professional on its own, runs about 384, and this scanner, with a free copy of Acrobat Professional, runs about 500. But outside of that, the scanner is an unreliable sheet feeder. It has a great cold-cathode imaging light, meaning it gets solid color, great images, but it's sensitive to being banged around. When it scans, it does so effortlessly--recognizing double sided pages, and scanning both sides in an instant.