Post by John Dean
The story has been around for a while that if you try to photocopy a
banknote your copier will either a) refuse b) introduce an obvious error or
c) notify the Feds (or d) any two out of three
I can't see anything on Snopes. Is this documented / debunked anywhere?
It's kind of true, depending on the copier.
I can give you first hand experience from 15 years ago when
I was working at a print shop. Ricoh had a brand of high
quality digital/laser colo[u]r copiers, and just brought out
a new model.
Just about every print shop will, indeed, try making a copy
of a dollar bill just to see what it looks like. (We did
so, too. Shhhh).
Anyway, our Ricoh technician grumbled to us that he'd just
spent the past few days resetting a half dozen of the new
machines which... people had tried copying dollars with.
There are a couple of other tricks these use:
1: I don't think any current units freeze up, but
a hefty number will "fuzz out" any image that matches
2: many, make that MANY, of the current copiers _do_
include a "hidden", serial number in the print. This
lets "them" backtrack any paper to the duplication machine.
"Investigating Machine Identification Code Technology in
Color Laser Printers"
"At the request of the United States Secret Service,
manufacturers developed mechanisms that print in an
encoded form the serial number and the manufacturer's
name as indiscernible markings on color documents. The
Secret Service and manufacturers would be able to decode
these values from the markings and in the event a color
machine was used to print a suspected counterfeited document,
these values would be used with customer information to
discover the identity of the machine's owner..."
Knowledge may be power, but communications is the key
[to foil spammers, my address has been double rot-13 encoded]