Developing device, image developing method, image forming...

Electrophotography – Image formation – Development

Reexamination Certificate

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Reexamination Certificate

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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).

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