| 摘要 |
A sheet information output apparatus comprising an application member for applying external force to a sheet, a receiving member in opposition to the application member for receiving the external force, and an output unit for outputting a signal corresponding to the application of the external force. The receiving member has a depressed portion having a support portion for aerially supporting the sheet, a slope face provided inside the support portion and a bottom face. The smallest length of the supported sheet W, a depth from the support portion to the bottom face d, and a length of the application member in a direction of the smallest length at height d when the application member is brought into contact with the bottom face s satisfy [(W-s)/2>5d].
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