(19)
(11) EP 1 930 778 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
published in accordance with Art. 153(4) EPC

(15) Correction information:
Corrected version no 1 (W1 A1)

(48) Corrigendum issued on:
30.07.2008 Bulletin 2008/31

(43) Date of publication:
11.06.2008 Bulletin 2008/24

(21) Application number: 06810755.6

(22) Date of filing: 28.09.2006
(51) International Patent Classification (IPC): 
G03G 5/06(2006.01)
G03G 5/10(2006.01)
 G03G 5/05(2006.01)
(86) International application number:
PCT/JP2006/319308
(87) International publication number:
WO 2007/037331 (05.04.2007 Gazette 2007/14)
(84) Designated Contracting States:
DE

(30) Priority: 28.09.2005 JP 2005282810
28.09.2005 JP 2005282811

(71) Applicant: Mitsubishi Chemical Corporation
Minato-ku Tokyo 108-0014 (JP)

(72) Inventors:
  • MITSUMORI, Teruyuki
    Yokohama-shi Kanagawa 227-8502 (JP)
  • HIROI, Masayuki
    Yokohama-shi Kanagawa 227-8502 (JP)
  • TAKAMURA, Hiroaki
    Yokohama-shi Kanagawa 227-8502 (JP)

(74) Representative: Merkle, Gebhard 
TER MEER STEINMEISTER & PARTNER GbR, Patentanwälte, Mauerkircherstrasse 45
81679 München
81679 München (DE)

   


(54) ELECTROPHOTOGRAPHIC PHOTOSENSITIVE BODY, IMAGE-FORMING DEVICE USING SAME AND CARTRIDGE


(57) To provide an electrophotographic photoreceptor excellent in electric characteristics and various characteristics, capable of forming a uniform photosensitive layer and excellent in repetitive characteristics, an image forming apparatus using it and an electrophotgraphic cartridge.
A lamination type electrophotographic photoreceptor comprising an electroconductive substrate and a photosensitive layer formed thereon, characterized in that the photosensitive layer contains a compound represented by the following formula (1), the ratio of the weight of the compound represented by the formula (1) to the weight content of all binder resins contained in the photosensitive layer is from 0.15 to 0.6, and the weight of the compound represented by the formula (1) is maximum among all charge transport materials:

wherein each of Ar1, Ar2 and Ar3 is an aryl group which may have a substituent, each of Ar4 and Ar5 which are independent of each other, is an arylene group which may have a substituent, and each of n1 and n2 which are independent of each other, is an integer of from 1 to 3.