Dai Nippon Printing probably isn't a company you're terribly familiar with, but you might feel inclined to keep closer tabs on the Japanese outfit. With help from the University of Tokyo, Dai Nippon has created a book scanner that can plow through texts at up to 250 pages a second. A mechanism flips through pages at lightning speeds while a pair of cameras overhead snap detailed images of each sheet as it flies by. Special software then flattens out the photos and turns the picture into a machine readable, 400 pixel-per-inch scan th