SHEET STACKING DEVICE, SHEET POST PROCESSING DEVICE, AND IMAGE FORMING SYSTEM

A sheet stacking device includes a sheet outlet, a lower discharge roller, and a paddle member. The paddle member is disposed coaxially to a rotation shaft of the lower discharge roller, and is driven to rotate independently of the lower discharge roller in the same direction as the lower discharge...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	KOTANI, Takashi
Format:	Patent
Sprache:	eng
Schlagworte:	CONVEYING HANDLING THIN OR FILAMENTARY MATERIAL HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES PACKING PERFORMING OPERATIONS STORING TRANSPORTING
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Beschreibung
Zusammenfassung:	A sheet stacking device includes a sheet outlet, a lower discharge roller, and a paddle member. The paddle member is disposed coaxially to a rotation shaft of the lower discharge roller, and is driven to rotate independently of the lower discharge roller in the same direction as the lower discharge roller, so as to contact downward an upstream part in a discharging direction of a sheet discharged through the sheet outlet. The paddle member includes a base part in which the rotation shaft is inserted, an arm part protruding in a direction separating from an axis center of the base part, and a paddle elastic part protruding from the arm part. A rotation speed of the paddle member is the same as a rotation speed of a discharge roller pair when the sheet passes through a nip of the discharge roller pair.