sheet processing device and image forming device provided with the sheet processing device

The invention provides a sheet processing device and an image forming device provided with the sheet processing device. To provide a sheet processing device that performs saddle stitching processing that binds a bundle of stacked paper sheets at a position around a center thereof and then folds in h...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	FUKASAWA EIJI, NAKANO TAKAHIRO, SORITA HIROYUKI, KOBAYASHI TAKUMA, KUBOTA KAZUYUKI, NAKAJIMA JUNYA, SAITO TAKASHI, OSADA HISASHI, KUBOTA ICHITARO, KUBOTA YUUKI, KUBOTA HIDEYUKI, KONDO ISAO
Format:	Patent
Sprache:	eng
Schlagworte:	BOOKBINDING CINEMATOGRAPHY CONVEYING CUTTING CUTTING-OUT ELECTROGRAPHY ELECTROPHOTOGRAPHY FILE CARDS FILES FILING APPLIANCES HAND CUTTING TOOLS HANDLING THIN OR FILAMENTARY MATERIAL HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES HOLOGRAPHY INDEXING MAGNETOGRAPHY MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNERANALOGOUS TO PAPER MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD ORMATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER PACKING PERFORATING PERFORMING OPERATIONS PERMANENTLY ATTACHING TOGETHER SHEETS, QUIRES OR SIGNATURES ORPERMANENTLY ATTACHING OBJECTS THERETO PHOTOGRAPHY PHYSICS PUNCHING SEVERING SEVERING BY MEANS OTHER THAN CUTTING SHEETS TEMPORARILY ATTACHED TOGETHER SPECIAL PRINTED MATTER STAMPING-OUT STORING TRANSPORTING WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUSTO PAPER
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Beschreibung
Zusammenfassung:	The invention provides a sheet processing device and an image forming device provided with the sheet processing device. To provide a sheet processing device that performs saddle stitching processing that binds a bundle of stacked paper sheets at a position around a center thereof and then folds in half the paper sheet bundle at the binding portion, the device being capable of selectively performing both saddle stitching using a metallic staple and saddle stitching not using the metallic staple for environmental protection and capable of reducing a size. A sheet processing device includes a stacker section that temporarily stacks conveyed paper sheets in a substantially vertical attitude, a stopper that regulates the paper sheets stacked in the stacker section, a first binding section that is provided in the stacker and saddle-stitches, with a metallic staple, a paper sheet bundle at a binding position around a center of the paper sheet bundle in a sheet conveying direction, a second binding section that saddle-stitches, without using the metallic staple, the paper sheet bundle at the binding position around the center of the paper sheet bundle in the sheet conveying direction, and a folding section that folds in half the paper sheet bundle. An interval between the second binding section and folding section is set smaller than an interval between the first binding section and folding section.