Binding unit, sheet processing device, and image forming device provided with them
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United States of America Patent
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May 19, 2020
Grant Date -
Nov 29, 2018
app pub date -
May 25, 2018
filing date -
May 26, 2017
priority date (Note) -
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status (Latency Note)
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Abstract
A sheet processing device has a binding unit that applies water to a crimping range of sheets and then crimps the sheets. The sheet processing device includes a processing tray on which sheets are placed, a pair of pressure teeth (pressure teeth and receiving teeth) that crimps the sheets placed on the processing tray at a crimping position with the sheets interposed therebetween, and a water application member (cylinder and piston) that applies water to the crimping position before crimping by the pressure teeth. When the number of sheets placed on the processing tray is equal to or less than a predetermined number, the sheets are crimped by the pressure teeth without water application; while when the number of sheets placed on the processing tray exceeds the predetermined number, the sheets are crimped by the pressure teeth after water application.
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