How the photocopier changed the way we worked and played

The Smithsonian: In 1959, Xerox released the "914"--the first easy-to-use photocopier. The culmination of more than 20 years of experimentation, it was a much cleaner, "dry" process. The copier created an electrostatic image of a document on a rotating metal drum, and used it to transfer toner--ink in a powdered format--to a piece of paper, which would then be sealed in place by heat. It was fast, cranking out a copy in as little as seven seconds. When the first desk-size, 648-pound machines wer...