Best Answer Awarded 4 How Do (vending, Change) Machines Know The Difference Between A $1 And A $5,$10 And $20?

How do (vending, change) machines know the difference between a $1 and a $5,$10 and $20
does the machine see something we don’t? I mean they’re the same size, they just have different things printed on them. How does the machine know? websites welcome

Bookmark It

Hide Sites

Tags: $5$10, Answer, Awarded, Best, Between, Change, Difference, Know, Machines, Vending

This entry was posted on Wednesday, January 13th, 2010 at 12:36 pm and is filed under Buying Vending Machines. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

2 Responses to “Best Answer Awarded 4 How Do (vending, Change) Machines Know The Difference Between A $1 And A $5,$10 And $20?”

1. mickelun Says:
   January 13th, 2010 at 2:34 pm

   The eye censors aren’t the only thing in a vending machine. There is also a small sophisticated computer inside that has the information of each bill stored in memory.
   The sensitive censors in the bill reader check for certain markings throughout both sides of the note. By finding these markings, it is able to determine which bill is which and whether or not it is fake. That is why sometimes a folded bill is harder for the machine to read, because it may be trying to read something in the crease, which is then distorted when it’s not flat.

2. Hank H Says:
   January 13th, 2010 at 8:51 pm

   that works by laser detection on the markings of the bill, like a cd

Leave a Reply

You must be logged in to post a comment.