US 7,349,653 B2 | ||
Developing apparatus and image forming method featuring colored and transparent toners | ||
Tadayoshi Nishihama, Abiko (Japan); Tadashi Fukuda, Toride (Japan); Kota Arimoto, Abiko (Japan); and Akihiro Noguchi, Toride (Japan) | ||
Assigned to Canon Kabushiki Kaisha, Tokyo (Japan) | ||
Filed on Feb. 09, 2006, as Appl. No. 11/349,903. | ||
Claims priority of application No. 2005-063180 (JP), filed on Mar. 07, 2005. | ||
Prior Publication US 2006/0198661 A1, Sep. 07, 2006 | ||
Int. Cl. G03G 15/01 (2006.01); G03G 15/08 (2006.01) |
U.S. Cl. 399—223 [399/257; 399/258] | 6 Claims |
1. A developing apparatus for developing an electrostatic image by means of colored toner and transparent toner, comprising:
a developing device for color receiving the colored toner and a carrier and developing the electrostatic image;
a developing device for transparence receiving the transparent toner and a carrier and developing the electrostatic image;
a developer replenishment container for color receiving a replenishment developer for color containing at least the colored
toner and the carrier, the developing device for color being replenished with the replenishment developer for color;
a developer replenishment container for transparence receiving a replenishment developer for transparence containing at least
the transparent toner and the carrier, the developing device for transparence being replenished with the replenishment developer
for the transparence,
wherein the replenishment developer for transparence having a carrier weight ratio lower than a carrier weight ratio in the
replenishment developer for color;
a developer discharge aperture for color arranged in the developing device for color and discharging a developer in the developing
device for color to an outside of the developing device for color in association with replenishment with the replenishment
developer for color; and
a developer discharge aperture for transparence arranged in the developing device for transparence and discharging a developer
in the developing device for transparence to an outside of the developing device for transparence in association with replenishment
with the replenishment developer for transparence.
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