Electrophotographic photoreceptor and electrophotographic...

Details Electrophotographic photoreceptor and electrophotographic... Electrophotographic photoreceptor and electrophotographic...

2006-12-14

2009-11-24

Chapman, Mark A (Department: 1795)

Radiation imagery chemistry: process, composition, or product th

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

Radiation-sensitive composition or product

C430S059500, C430S073000, C430S074000, C399S159000

Reexamination Certificate

active

07622232

ABSTRACT:
An electrophotographic photoreceptor including a photosensitive layer which includes a titanyl phthalocyanine crystal having a major absorption peak at a wavelength of 780 nm±10 nm and a minor absorption peak having an intensity of ¾ or less of the major absorption peak at 690 nm±10 nm in the visible-infrared absorption spectrum and a distyryl compound having a predetermined structure. An electrophotographic image forming apparatus employing the electrophotographic photoreceptor is also provided. The electrophotographic photoreceptor and the electrophotographic image forming apparatus have good photosensitivity and charging properties and good stability over repeated charging obtained by using an optimum combination of a new crystal type of a highly photosensitive titanyl phthalocyanine and a distyryl compound which is a charge transporting material that is compatible with the titanyl phthalocyanine.

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