JP2007163578A5 - - Google Patents

Claims (9)

Electrically and conductive support, an intermediate layer formed on the electrically conductive substrate, an electrophotographic photosensitive member comprising a formed on the intermediate layer photosensitive layer,
The photosensitive layer contains a gallium phthalocyanine compound,
Intermediate layer, and the azo compound represented by the following formula (1), an electrophotographic photoreceptor, characterized by containing a polyamide resin containing a repeating unit represented by the following formula (5).
Formula (1)

(In Formula (1), R ₁ and R ₂ each independently represent a hydrogen atom, an aryl group which may have a substituent, or a carbamoyl group which may have a substituent, provided that R ₁ and R ₂ is not simultaneously a hydrogen atom, X represents O or S. Y is an aromatic hydrocarbon ring or aromatic heterocyclic ring which may be condensed with a benzene ring to have a substituent. And Ar represents a group represented by the following formula (2), (3) or (4) .
Formula (2)

Formula (3)

Formula (4)

(In the formula (2), R ₃ , R ₄ , R ₅ , R ₆ and R ₇ each independently have a hydrogen atom, a halogen atom, an alkyl group which may have a substituent, or a substituent. also alkoxy groups, .A showing an aryl group which may have a substituted or unsubstituted aralkyl group or substituent, O, S or N-R 8 _(provided that, R ₈ is a hydrogen atom, An alkyl group which may have a substituent, an aralkyl group which may have a substituent or an aryl group which may have a substituent.
Formula (5)

(In formula (5), R ₉ represents a divalent alkylene group which may have a substituent. R ₁₀ represents a hydrogen atom or an alkyl group which may have a substituent.) The phthalocyanine compound, Ru hydroxygallium phthalocyanine crystals der having strong peaks at 7.4 ° of ± 0.3 ° and 28.2 ° ± 0.3 ° position of the diffraction angle 2θ in CuKα characteristic X-ray diffraction 請 The electrophotographic photosensitive member according to claim 1. The weight ratio of the total sum of the weight of the polyamide resin containing a repeating unit represented by formula and the total sum of the weight of the azo compound (5) represented by the formula is contained in the intermediate layer (1) is 2: 1 to 1: 100 der Ru請 Motomeko 1 or 2 the electrophotographic photosensitive member according to. The mass ratio is 1: 5 to 1: The electrophotographic photosensitive member according to 100 der Ru請 Motomeko 3. The electrophotographic photosensitive member according to any one the formulas (1) azo compound represented by is 請 Motomeko 1-4 azo compounds der Ru represented by the following formula (6).
Formula (6)

(In the formula (6), Ar represents a group represented by the following formula (7), (8) or (9) . R ₁₁ represents a group represented by the following formula (10) or (11). )
Formula (7)

Formula (8)

Formula (9)

Formula (10)

Formula (11)
The azo compound represented by the formula (6) is represented by the following formula (12), (13) or the electrophotographic photosensitive member according to 請 Motomeko 5 azo compounds der Ru represented by (14).
Formula (12)

Formula (13)

Formula (14)
The electrophotographic photosensitive member according to any one of 請 Motomeko 1-6 Ru repeating units der the repeating unit represented by the formula (5) is represented by the following formula (15).
Formula (15)
An electrophotographic photosensitive member according to claim 1, charging means, integrally supported and at least one means selected from the group consisting of the developing means and cleaning means, detachably mountable to an electrophotographic apparatus main body A process cartridge characterized by being.   An electrophotographic apparatus comprising the electrophotographic photosensitive member according to claim 1, a charging unit, an image exposure unit, a developing unit, and a transfer unit.