To provide a light and compact reversing part by providing a gear train which is connected to a drive source and rotationally drives a carrying roller, fitting a gear for roller on each of a pair of holding rollers of a reversing frame, and constantly engaging each gear for roller with a transmission gear.

A pair of first and second holding rollers 65 are provided across reversing shafts 63a, 63b to turnably support a reversing frame 62, and selectively turned by first and second transmission gears 71, 72. The first and second holding rollers 65 are provided with a gear 65a for the first and second rollers to be engaged with the first and second transmission gears 71, 72. A gear train 84 to be connected to a drive gear 83a of a carrying roller 83 and turned is provided. The reversing frame 62 is turned around the reversing shafts 63a, 63b, and when the first transmission gear 71 is engaged with a final gear 84b of the gear train 84, the first holding roller 65 is turned, and when the second transmission gear it engaged with the final gear 84b, the second holding roller is turned. A drive part for carrying a card need not be provided exclusively, and the light and compact reversing part can be provided.