| 摘要 |
A switchback unit has a switchback roller which receives a paper sheet conveyed in a first direction into a nip for forward rotation and backwardly rotates the paper sheet after stopping the paper sheet to feed the paper sheet to a second conveyance path. When the conveyance of the paper sheet stopped on the way to the switchback section is resumed, control is performed so that the switchback roller is forwardly rotated until a sensor detects the tip of the paper sheet, and then the switchback roller is stopped and backwardly rotated.
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