I have, and I'm sure my employer copies stuff like pay stubs, SS#'s etc. I did not know that most newer copiers have large hard drives that keep a digital copy of all that crap and most times when the copier goes back when the lease is up they do not get erased. Scary stuff.
http://www.wimp.com/copymachines/
http://www.wimp.com/copymachines/