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The money detector can't recognize white paper and gives high marks.

Excuse me, are you a money detector that takes in money one by one? If so, this machine is normal, because there are many such money detectors that use laser money detection methods, and their machines are designed like this. 1, because as soon as you hold counterfeit money in your hand, you know it's counterfeit. 2. Because the white paper is highly reflective and interferes with the laser, it is sometimes considered as real money. Not all counterfeit money like white paper can be caught. Don't worry about this. If you can't catch other counterfeit money, there is something wrong with the machine. However, if a money detector with a money counter in a bank can't catch blank paper, there is something wrong with the machine or the machine is not good.