Electrophotographic photoconductor and electrophotographic devic

Details Electrophotographic photoconductor and electrophotographic devic Electrophotographic photoconductor and electrophotographic devic

2000-01-04

2000-10-03

Martin, Roland

Radiation imagery chemistry: process, composition, or product th

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

Radiation-sensitive composition or product

430 595, 399159, G03G 5047

Patent

active

061270784

ABSTRACT:
An organic electrophotographic photoconductor diminished in an image trouble due to history of a transfer process in a reversal development system is disclosed. The above organic electrophotographic photoconductor is called a separated-function laminated type organic electrophotographic photoconductor, which has an undercoat layer and a photosensitive layer laminated in this order on a conductive substrate, the photosensitive layer comprising a charge generation layer laminated on the undercoat layer and containing an organic compound, and a charge transport layer laminated on the charge generation layer and containing an organic compound. For the charge generation layer, a titanyloxyphthalocyanine compound is used as a charge generation material. The present invention uses the titanyloxyphthalocyanine compound having a clear diffraction peak at a Bragg angle (2.theta.) of 9.6.degree..+-.0.2.degree. or 27.3.degree..+-.0.2.degree. for CuK.alpha. characteristic X-ray (wavelength 1.541 .ANG.). For the charge transport layer, a specific organic compound is used as a charge transport material.

REFERENCES:
patent: 5736282 (1998-04-01), Tamura et al.

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