| 摘要 |
The invention is to provide a sheet processing apparatus enabling a piled amount of debris paper scraps in a debris storage box to be detected accurately in a simplified mechanism in performing cutting processing on sheets, and the sheet processing apparatus is provided with an apparatus frame, sheet processing means disposed in the apparatus frame to perform cutting such as punching and trimming on a transported sheet, debris storage box for storing paper debris generated in the sheet processing means, and debris amount detecting means for detecting a debris amount inside the debris storage box, where the debris storage box is supported by the apparatus frame to be able to move to positions between an installation position for storing the paper debris and a non-installation position for removing stored paper debris in an orthogonal direction to a transport direction of the transported sheet, and the debris amount detecting means is formed of a pair of sensors arranged to oppose each other in positions for enabling the sensors to detect a debris amount piled inside the debris storage box present in the installation position in the orthogonal direction to the transport direction of the transported sheet.
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