Developing device and image forming device
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United States of America Patent
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May 7, 2013
Grant Date -
Sep 15, 2011
app pub date -
Sep 13, 2010
filing date -
Mar 15, 2010
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A developing device includes: a plurality of developer retaining bodies that retain developer and rotate, and that respectively convey the developer, which is supplied to each of the developer retaining bodies from a developer supply section, to an image bearing body that rotates and bears a latent image; and a speed changing unit that is adapted to change a rotation speed of at least one of the developer retaining bodies excluding a developer retaining body that is furthest downstream side in a direction of rotation of the image bearing body.
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