Electrophotography – Image formation – Development
Patent
1997-11-28
1998-12-15
Royer, William
Electrophotography
Image formation
Development
G03G 1501
Patent
active
058505865
ABSTRACT:
In an image forming apparatus, a rotary developing device has a developing unit in which a plurality of developing chambers are arranged around an axis of rotation. The developing unit is rotated about the axis to bring one of the chambers to a developing position where an image carrier is located. In each of the chambers, part of a developer removed by a doctor blade is received by a guide and then released from the guide into the chamber. This part of the developer is agitated in the vertical direction together with the developer existing in the chamber by the rotation of the device. As a result, the developer is agitated and charged in a desirable manner.
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Ishikawa Tomoji
Kosuge Katsuhiro
Sugihara Kazuyuki
Ricoh & Company, Ltd.
Royer William
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