Electrophotography – Image formation – Development
Reexamination Certificate
2008-01-15
2010-11-16
Ngo, Hoang (Department: 2852)
Electrophotography
Image formation
Development
C399S272000
Reexamination Certificate
active
07835676
ABSTRACT:
A developing apparatus for visualizing an electrostatic latent image on an electrostatic latent image bearing member by using a developer including toner and carrier particles, has a developer including toner and carrier particles, a first transport member, a second transport member positioned to oppose to the first transport member across a first region and to the electrostatic latent image bearing member across a second region. A first electric field forming unit forms a first electric field between the first and second transport members to move the toner particles from the first transport member to the second transport member. A second electric field forming unit forms a second electric field between the second transport member and the electrostatic latent image bearing member to move the toner particles from the second transport member to the electrostatic latent image bearing member and thereby to visualize an electrostatic latent image on the image into a visible image. The developer further includes charging particles releasably retained on surfaces of the toner particles. Once released from the toner particles and then held on surfaces of the carrier particles, the third particles function to provide an electric charge of the first polarity to the toner particles by the contact therewith.
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Office Action in JP 2007-006720 dated Jan. 27, 2009.
English Language Translation of Japanese Office Action in corresponding Patent Application No. 2007-006720 dated Jan. 27, 2009.
Notice of Preliminary Rejection issued in corresponds Japanese Application No. 2007-006720 dated Oct. 6, 2009, and an English Translation thereof.
Goto Hiroshi
Takai Takayuki
Tsutsui Chikara
Buchanan & Ingersoll & Rooney PC
Konica Minolta Business Technologies Inc.
Ngo Hoang
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