ELECTROPHOTOGRAPHIC PHOTORECEPTOR, ELECTROPHOTOGRAPHIC METHOD, ELECTROPHOTOGRAPHIC APPARATUS AND PROCESS CARTRIDGE FOR ELECTROPHOTOGRAPHIC APPARATUS

Title:

ELECTROPHOTOGRAPHIC PHOTORECEPTOR, ELECTROPHOTOGRAPHIC METHOD, ELECTROPHOTOGRAPHIC APPARATUS AND PROCESS CARTRIDGE FOR ELECTROPHOTOGRAPHIC APPARATUS

Document Type and Number:

Japanese Patent JP3806839

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To provide a high sensitivity and high durability electrophotographic photoreceptor for a high-speed copying machine and for a laser printer, an electrophotographic method, an electrophotographic apparatus and a process cartridge.
SOLUTION: In the electrophotographic photoreceptor obtained by disposing a photosensitive layer on an electroconductive support, an azo compound of the formula Ar-(N=N-Cp)n is contained in the photosensitive layer. In the formula, Ar is a substituted or unsubstituted aromatic hydrocarbon group or a heterocyclic group which may bond through a linking group; each Cp is a coupler residue; n is an integer of 1-4; and at least one of the symbols Cp is a coupler residue of formula (2) wherein X is H, alkyl, an aromatic hydrocarbon group, a heterocyclic group or amino.

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Inventors:

Yuko Komai
Masayuki Shoji

Application Number:

JP2002004521A

Publication Date:

August 09, 2006

Filing Date:

January 11, 2002

Export Citation:

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Assignee:

株式会社リコー

International Classes:

G03G5/06; (IPC1-7): G03G5/06

Domestic Patent References:

JP2003206411A

Attorney, Agent or Firm:

Hidehiko Takei

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