Sheet conveying device, sheet feeder, and image forming apparatus

A sheet conveying device includes a primary sheet guide including a bending portion to bend a sheet while the sheet slides over the bending portion to change a sheet conveyance direction and a secondary sheet guide disposed opposite the primary sheet guide with an interval between the primary sheet...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Niitsuma Youhei, Ochiai Takaya, Okamoto Ikuhisa, Shimazu Takehisa, Akai Takeshi
Format:	Patent
Sprache:	eng
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR CINEMATOGRAPHY CONVEYING ELECTROGRAPHY ELECTROPHOTOGRAPHY HANDLING THIN OR FILAMENTARY MATERIAL HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES HOLOGRAPHY MAGNETOGRAPHY METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PACKING PERFORMING OPERATIONS PHOTOGRAPHY PHYSICS SOUND-PRODUCING DEVICES STORING TRANSPORTING
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Beschreibung
Zusammenfassung:	A sheet conveying device includes a primary sheet guide including a bending portion to bend a sheet while the sheet slides over the bending portion to change a sheet conveyance direction and a secondary sheet guide disposed opposite the primary sheet guide with an interval between the primary sheet guide and the secondary sheet guide. A noise attenuator intakes and attenuates slide noise generated by the bending portion while the sheet slides over the bending portion. The noise attenuator includes a resonant cavity disposed opposite an outer face of one of the primary sheet guide and the secondary sheet guide. A sound inlet is disposed in proximity to the bending portion and intakes the slide noise generated by the bending portion. A sound guide communicates with the sound inlet and the resonant cavity to guide the slide noise from the sound inlet to the resonant cavity.