Electrophotography – Image formation – Development
Reexamination Certificate
2007-09-06
2010-10-19
Gray, David M (Department: 2852)
Electrophotography
Image formation
Development
Reexamination Certificate
active
07817946
ABSTRACT:
The present invention provides a developing device that allows for maintaining the conveyance amount of a toner within a certain definite range. A developing device12of the present invention is provided with a toner conveying unit13configured to convey a first toner and a controlling member15configured to control the thickness of a toner layer formed with the first toner conveyed by the toner conveying unit13, wherein a second toner provided with a charged amount per unit mass that differs from a charged amount per unit mass of the first toner is applied over the surface of the controlling member15.
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Nippon Gazo Gakkai shi or “Journal of the Imaging Society of Japan”, vol. 39, No. 3, at p. 259 (with partial English translation).
Fuwa Kazuoki
Hagi Masayuki
Inoue Masahide
Ishikawa Yoshimichi
Kadota Takuya
Curran Gregory H
Gray David M
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Ricoh & Company, Ltd.
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