I never watch the 'alphabet' network news channels, but the following linked video made by CBS was sent to me and it seems legitimate. Commercial copiers contain hard drives just like a computer and copies are stored on them virtually forever. If one of the copiers is refurbished and resold, chances are the hard drive still contains every single document ever scanned. If you have a business and are concerned about sensitive documents I think you should watch this:
Thanks to Terri S.