Electrophotographic image forming apparatus having...

Details Electrophotographic image forming apparatus having... Electrophotographic image forming apparatus having...

2011-05-10

2011-05-10

Porta, David P (Department: 2884)

Electrophotography

Image formation

Development

C399S299000, C399S300000

Reexamination Certificate

active

07941078

ABSTRACT:
An electro photographic image forming apparatus includes first and second photosensitive bodies, first and second exposing units to form electrostatic latent images on the first and second photosensitive bodies each of which being charged to a uniform electric potential, a first developing unit to develop the electrostatic latent image on the first photosensitive body by supplying a transparent toner thereto, and a second developing unit to develop the electrostatic latent image on the second photosensitive body by supplying color toners thereto, wherein the first developing unit is a developing unit employing a two-component developing technique using a magnetic carrier and a transparent toner.

REFERENCES:
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patent: 5915144 (1999-06-01), Ide et al.
patent: 6122473 (2000-09-01), Goseki et al.
patent: 6389260 (2002-05-01), Kataoka et al.
patent: 6678493 (2004-01-01), Maeyama et al.
patent: 2005/0214669 (2005-09-01), Hayashi et al.
patent: 2006/0127134 (2006-06-01), Sakamaki et al.

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