| 摘要 |
PROBLEM TO BE SOLVED: To provide a device feeding sheets to a sheet processing device, for example, even when an image forming device becomes high speed, the device responding thereto and improving the sheet stacking performance. SOLUTION: A typical constitution of this sheet processing device is provided with a first loading means 130 temporarily loading a plurality of delivered sheets, a delivering means 180 delivering the sheets loaded on the first loading means 130, at least a second loading means 200 loading the delivered sheets, a stiffness applying rib 190 applying the stiffness in the carrier direction to the stacked sheets, and a drive means M190 moving the stiffness applying rib 190.
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