Electrophotography – Image formation – Development
Reexamination Certificate
2011-08-30
2011-08-30
Gray, David M (Department: 2852)
Electrophotography
Image formation
Development
C399S279000
Reexamination Certificate
active
08010023
ABSTRACT:
A developing device for developing an electrostatic latent image on an image carrier by supplying a one-component developer to the image carrier. Good images can be obtained over long periods of time, without printing history becoming apparent on account of residual developer. The developing device has a developer carrier that is rotatable and disposed facing an image carrier; and a conductive developer supply and recovery member rotatably arranged so as to abut the developer carrier. The rotation direction of the conductive developer supply and recovery member is opposite to the rotation direction of the developer carrier at a position where the developer carrier and the conductive developer supply and recovery member abut each other. A contact pressure P between the developer carrier and the conductive developer supply and recovery member is set so as to satisfy the relationship 0 (kPa)<P<5.0 (kPa).
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Inoue Ryuji
Murayama Shin
Nakagawa Shuichi
Yamada Shintaro
Bonnette Rodney
Gray David M
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Ricoh & Company, Ltd.
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