Comments on: How Does A Vending Machine Know If A Bill Is Counterfeit?

By: Miguel H

Miguel H — Sat, 11 Apr 2009 04:40:29 +0000

Actually, the vending machine is smarter than the store clerk because it uses a very sophisticated more pattern plate to compare the one on the tray with a perfect bill. If all the lines don’t line up, it rejects the bill… there are some other things it does to test the bill too, but I’m not going to tell you what they are.
Vending machines don’t call the police because there is no need. You obviously don’t realize just how sophisticated that bill validating system is.

By: lordkelv

lordkelv — Sat, 11 Apr 2009 04:40:29 +0000

software… the machine will just reject the bill….

By: Pragmati

Pragmati — Sat, 11 Apr 2009 04:40:29 +0000

It is the little monkey inside the vending machine !

By: a.hawari

a.hawari — Sat, 11 Apr 2009 04:40:29 +0000

No they can’t their is a little strip in the dollar bill no strip no accept but true the machine can’t call the police.

By: CreoleSi

CreoleSi — Sat, 11 Apr 2009 04:40:29 +0000

It’s called technology!

By: Vampire 13R

Vampire 13R — Sat, 11 Apr 2009 04:40:29 +0000

magic
If they tell us, someone will find a way to fool it.

By: Razor Jim

Razor Jim — Sat, 11 Apr 2009 04:40:29 +0000

Modern machines use laser technology to view the various marks and watermarks on bills. They are not a 100% yet but close. If a bill is suspect it is rejected even if it is actually real. That’s why worn bills often don’t make it.