| 摘要 |
Includes a sensor section (240) which irradiates light onto paper that is being conveyed and which detects a quantity of light transmitted through the paper, and a type-of-money judging section (290) and a number-of-sheet-of-paper collating section (320) which correct a light transmission quantity when the external shape of paper obtained from the light transmission quantity coincides with a prescribed shape and also when the light transmission quantity is lower than a pre-set threshold value, and judge types of money and a number of sheets of paper based on a result of this correction.
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