Electrophotography – Image formation – Development
Reexamination Certificate
2011-06-28
2011-06-28
Gray, David M (Department: 2852)
Electrophotography
Image formation
Development
C399S258000, C399S284000, C399S285000
Reexamination Certificate
active
07970323
ABSTRACT:
A developing device including a developer bearing member configured to feed a developer to an image bearing member; a developer supplying member, which is contacted with the developer bearing member at a first nip while opposed thereto and which is configured to supply the developer to the developer bearing member; and a developer layer forming member, which is contacted with the developer bearing member at a second nip located on the downstream side from the first nip relative to the rotation direction of the developer bearing member to form the layer of the developer on the developer bearing member, wherein the developer is a nonmagnetic one component developer, and the distance between the front edge of the second nip and the rear edge of the first nip relative to the rotation direction of the image bearing member is greater than 0.8 mm and less than 2.0 mm.
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Jul. 15, 2010 Japanese official action (and partial English translation enclosed) in connection with counterpart Japanese patent application.
Fuwa Kazuoki
Hagi Masayuki
Inoue Masahide
Katoh Hiroaki
Mikuriya Yoshihiro
Cooper & Dunham LLP
Gray David M
Gray Francis
Ricoh & Company, Ltd.
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