Title:
SINGLE LAYER TYPE ELECTROPHOTOGRAPHIC PHOTORECEPTOR, ELECTROPHOTOGRAPHIC METHOD, ELECTROPHOTOGRAPHIC APPARATUS AND PROCESS CARTRIDGE FOR ELECTROPHOTOGRAPHIC APPARATUS
Document Type and Number:
Japanese Patent JP3925916
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a single layer type electrophotographic photoreceptor having good electrification ability and sensitivity, excellent in light resistance and durability and ensuring high stability of electrostatic property even after repetition of a copying process.
SOLUTION: In the electrophotographic photoreceptor obtained by disposing a single layer type photosensitive layer on an electrically conductive support directly or by way of an intermediate layer, an azo compound of the formula Ar(-N=N-Cp)n is contained in the photosensitive layer. In the formula, Ar is an aromatic hydrocarbon group or an aromatic heterocyclic group that may bond through a bonding group; Cp is a coupler residue; n is an integer of 1-4; and at least one of the symbols Cp is selected from formulae (2)-(3), wherein R51-R56 are each H, alkyl, alkoxy, halogen or the like; X51 is H, alkyl, an aromatic hydrocarbon group or the like; and Y51 is alkylene, a divalent organic residue or the like.
Inventors:
Yuko Komai
Masayuki Shoji
Masayuki Shoji
Application Number:
JP2002229177A
Publication Date:
June 06, 2007
Filing Date:
August 06, 2002
Export Citation:
Assignee:
株式会社リコー
International Classes:
G03G5/06; G03G5/05; (IPC1-7): G03G5/06; G03G5/05
Domestic Patent References:
| JP8006273A | ||||
| JP2093470A | ||||
| JP10133400A | ||||
| JP9319115A | ||||
| JP11065154A | ||||
| JP2001175010A | ||||
| JP2003167365A | ||||
| JP2003207914A | ||||
| JP2003206411A | ||||
| JP2003202689A | ||||
| JP5210252A |
Attorney, Agent or Firm:
Hidehiko Takei
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