| 摘要 |
A paper feeder including a platen roller for feeding paper sheet supplied from a manual paper supply opening to a printing section and conveying the same after printing again to the manual paper supply opening so as to be discharged. In the paper feeder, the length of the paper sheet supplied from the manual paper supply opening is the same as the distance between a paper sensor disposed at the manual paper supply opening and the paper catching position of the platen roller, and the platen roller is inversely rotated by the length when the power source is switched on, and therefore a paper sheet remaining in a conveyance path can be discharged certainly to the manual paper supply opening.
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