Double-layered positively-charged organic photoreceptor

Details Double-layered positively-charged organic photoreceptor Double-layered positively-charged organic photoreceptor

2005-09-27

2005-09-27

Goodrow, John L (Department: 1756)

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Radiation-sensitive composition or product

C430S117200, C399S159000

Reexamination Certificate

active

06949321

ABSTRACT:
A double-layered positively-charged organic photoreceptor has a charge transport layer with effective adhesion to an electroconductive support and effective resistance against dissolving when in contact with a hydrocarbon-based solvent of a wet developer. Therefore, the double-layered positively-charged organic photoreceptor requires neither anodizing on the electroconductive support nor an additional adhesive layer, and is compatible with wet developing methods. The double-layered positively-charged organic photoreceptor includes: an electroconductive support; a charge transport layer formed on a surface of the electroconductive support and including a charge transport material for transporting holes, a polycarbonate-based first binder resin, and a second binder resin of a polyester copolymer with a biphenylfluorene group; and a charge generating layer formed on the surface of the charge transport layer.

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Korean Office Action; Dated: Oct. 30, 2004; Application No.: 10-2002-0041244.
Japanese Office Action dated Apr. 12, 2005 for corresponding Japanese Patent Application No. 2003-274539.

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