Developing device and image forming apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 15, 2015
Grant Date -
Feb 21, 2013
app pub date -
Aug 13, 2012
filing date -
Aug 15, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A developing device includes a developer carrying member, rotatable while carrying a developer, for supplying developer to an image bearing member, a developer supplying member, which is provided with a foam layer at its surface and is rotatable in contact with the developer carrying member, for supplying the developer to the developer carrying member, and a first gear for transmitting a driving force to the developer supplying member. The first gear is movable to a first position where the driving force is not transmitted to the developer supplying member and to a second position where the driving force is transmitted to the developer supplying member. During initial drive of the developer carrying member, the developer supplying member is rotated by a frictional force generated between the developer supplying member and the developer carrying member, with the first gear to be moved from the first position to the second position.
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Family
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Cited Art Landscape
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