PUNCHING DEVICE AND IMAGE FORMING DEVICE

PROBLEM TO BE SOLVED: To provide a punching device capable of eliminating a paper jam in a non punching process, and improving reliability in carrying a paper sheet. SOLUTION: The punching device includes a side end part detecting sensor 17 for detecting a side end part position parallel to a carryi...

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Bibliographische Detailangaben
Hauptverfasser:	NAGAOKA TOMOTAKA, HIRATA TETSUO, KONO MASANOBU, OHASHI HIDEYO, HOSOYA HISAO, FUKUDA KAZUAKI, YOSHIE KOJI, GOTO MASARU, OUMI KAZUYOSHI
Format:	Patent
Sprache:	eng
Schlagworte:	CONVEYING CUTTING CUTTING-OUT HAND CUTTING TOOLS HANDLING THIN OR FILAMENTARY MATERIAL HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES PACKING PERFORATING PERFORMING OPERATIONS PUNCHING SEVERING SEVERING BY MEANS OTHER THAN CUTTING STAMPING-OUT STORING TRANSPORTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a punching device capable of eliminating a paper jam in a non punching process, and improving reliability in carrying a paper sheet. SOLUTION: The punching device includes a side end part detecting sensor 17 for detecting a side end part position parallel to a carrying direction of a paper sheet S, and punches a center of the paper sheet by moving a punching means 10 in a direction orthogonal to the carrying direction of the paper sheet S. The side end part detecting sensor 17 is provided so as to move along a direction orthogonal to the carrying direction of the paper sheet, and in a non punching process the side end part detecting sensor 17 is moved and waited so as to locate on an inner side or an outer side of a side end part position parallel to the carrying direction of the paper sheet and the paper sheet is passed through before a tip end of the paper sheet reaches the side end part detecting sensor 17.