How do atm machines spot counterfeit money?

Question

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Answer 1

it scans it upon insertion.

Answer 2

I think ATM only dispenses money, they then don't check on the counterfeit notes. The deposit taking machine (if you call them ATM also) will detect counterfeit money with various means; one among them is the ink which they have the capacity to scan; also they could scan picture in comparison with the picture they have in their memories. Other thing would be that they preloaded with point detector of the counterfeit banknotes series; i.e. 1990 100 notes counterfeit will have mark at the lower end of the back.

This is a big science, but some good machines can detect close to 99 per cent (of course that leaves a lot of one big percent).

Answer 3

I don't think the ATM machine does it since all money and cheque deposited are placed into envelopes in Canada. How can you scan something if it is in an enevelope. I think the bank assumes your deposit is valid until they verify the deposit envelope for correct amount of cash, cheque and counterfit bills.

Answer 4

The paper it's printed on

Answer 5

They have a midget inside with one of those pens, who checks the money. Who dosen't know that!