DEVELOPING DEVICE

A developing device includes a developer carrying member, a first chamber, a second chamber, a partition wall, a first opening, a second opening, a first feeding member, a second feeding member including a first spiral portion, a second spiral portion and a connecting portion and a discharge opening...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	YAGO TOSHIHISA, MUGITA NAOKI
Format:	Patent
Sprache:	eng
Schlagworte:	CINEMATOGRAPHY ELECTROGRAPHY ELECTROPHOTOGRAPHY HOLOGRAPHY MAGNETOGRAPHY PHOTOGRAPHY PHYSICS
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Beschreibung
Zusammenfassung:	A developing device includes a developer carrying member, a first chamber, a second chamber, a partition wall, a first opening, a second opening, a first feeding member, a second feeding member including a first spiral portion, a second spiral portion and a connecting portion and a discharge opening. The second opening is provided at an overlapping position with both of the first spiral portion and the second spiral portion with respect to a rotational axis direction of the second feeding member. An inner wall of the second chamber opposing the connecting portion is provided with a projected portion projected toward the connecting portion and extended in a vertical direction. The projected portion has a lower end formed at a position lower than an upper end of the second spiral portion.