Electrophotography – Diagnostics – Consumable
Reexamination Certificate
2005-02-22
2005-02-22
Brase, Sandra L. (Department: 2852)
Electrophotography
Diagnostics
Consumable
C399S061000
Reexamination Certificate
active
06859627
ABSTRACT:
A developing device for developing an electrostatic latent image formed on an electrophotographic photosensitive member, said developing device being mountable to a main assembly of an electrophotographic image forming apparatus, said developing device includes a developer carrying member for feeding a developer to said electrophotographic photosensitive member to develop the electrostatic latent image formed on the electrophotographic photosensitive member; a first electroconductive portion; a second electroconductive portion for cooperating with said first electroconductive portion to provide an electrostatic capacity; a first electrical contact for receiving a voltage to be applied to said first electroconductive portion from the main assembly of the electrophotographic image forming apparatus; a second electrical contact for transmitting, to the main assembly of the electrophotographic image forming apparatus, an electric signal corresponding to an electrostatic capacity between said first electroconductive portion and said second electroconductive portion when a voltage is applied to said first electroconductive portion to detect a remaining amount of the developer by the main assembly of the electrophotographic image forming apparatus.
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Karakama Toshiyuki
Matsumoto Hideki
Oguma Toru
Sakurai Kazushige
Brase Sandra L.
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
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