To achieve a simple mechanism superior in durability and weatherability for conveying and returning erroneously inserted thin foreign matter such as a card and a receipt thinner than a regular card, in the mechanism for sandwiching and conveying the card by a drive roller and an idler roller.
A medium conveying mechanism includes a first medium conveying part, a second medium conveying part and a third medium conveying part. The medium conveying mechanism is characterized in that the first medium conveying part, and the second medium conveying part and the third medium conveying part are juxtaposed in opposed positions by sandwiching a conveying passage for conveying a medium, a distance between the first medium conveying part and the third medium conveying part is arranged shorter than a distance between the first medium conveying part and the second medium conveying part, the third medium conveying part is constituted of a spiral member having hardness higher than that of the second medium conveying part, and the member has elasticity in the radial direction of a spiral.
Yuji Toda
Shigemi Iwasaki
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