Electrophotographic photoconductor having titanyl...

Details Electrophotographic photoconductor having titanyl... Electrophotographic photoconductor having titanyl...

2007-03-12

2010-11-23

RoDee, Christopher (Department: 1795)

Radiation imagery chemistry: process, composition, or product th

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

Radiation-sensitive composition or product

C430S056000, C399S159000

Reexamination Certificate

active

07838191

ABSTRACT:
The present invention provides a monolayer type electrophotographic photoconductor which can effectively suppress the generation of an exposure memory and exhibits high sensitivity and an image forming apparatus using the monolayer type electrophotographic photoconductor. In an electrophotographic photoconductor which has a monolayer type photoconductive layer including at least a charge generating agent, a hole transfer agent, an electron transfer agent and a binding resin on a substrate, the charge generating agent contains oxo-titanyl phthalocyanine crystal, the electron transfer agent has a reduction potential thereof set to a value which falls within a range from −0.97 to −0.83 V, and the reflection absorbance (A/−) of the photoconductive layer with respect to light having a wavelength of 700 nm, a film thickness (d/m) of the photoconductive layer, and the concentration (C/weight %) of the oxo-titanyl phthalocyanine crystal of the photoconductive layer (100 weight %) satisfy a following formula (1).in-line-formulae description="In-line Formulae" end="lead"?A·C−1·d−1>1.75×104  (1)in-line-formulae description="In-line Formulae" end="tail"?

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