Tech: Truth about Canon Copiers

[an4914@anon.penet.fi (Nitch)]

>
>       This is interesting.  Since most of the change-making machines in 
>   laundromats seem to use the side with the dead white guy, I wonder if it
>   would work to use this copy?
>   ----Dave REes (rees@cs.bu.edu)
>
>Nah, the changers just say "this side up" - the scanner may be looking at
>the underside of the bill, or at both sides (more probable).
>

Or, they may not "scan" at all!  Ever wonder why wrinkles, folds, and other
mutilations wreck their ability to recognize your cash?

I think many of them may be measuring paper thickness, folks.
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