I remember hearing stories about a friend's cousin would use photo copiers / printers to copy small bills to put in coke machines, change machines etc. I never

I remember hearing stories about a friend's cousin would use photo copiers / printers to copy small bills to put in coke machines, change machines etc. I never tried this myself for obvious reasons, so I don't know if it actually worked, but I can see how being able to track down the printer type etc. would help in this.