JP2007148294A5 - - Google Patents

Claims (10)

Conductive support, the conductive support on the intermediate layer comprising the formed electron transport compound, a charge generating layer containing a charge generating material formed on the intermediate layer, a positive formed in the charge generation layer a hole transport layer have the electronic photosensitive member comprising a hole transporting material,
The intermediate layer
Has an alkylene in the main chain, the thermoplastic resin comprises a lifting one unitary unit a hydroxyaryl group in the side chain and,
An electrophotographic photosensitive member, characterized in that a layer formed from the coating liquid for the intermediate layer with the electron transport compound.   The electrophotographic photosensitive member according to claim 1, wherein the aryl group of the hydroxyaryl group is a phenyl group. The electrophotographic photosensitive member according to claim 1 or 2 which is a compound represented by any one of the electron transport compound is represented by the following formula (1) to (4).

(In the formula _(1), X 1 ~X ₄ each independently represent a hydrogen atom; or an alkyl group which may have a substituent; a halogen group; a nitro group; an optionally substituted alkoxy group the .R ₁ and R ₂ shown, each independently, an alkyl group which may be interrupted by an ether group, an ether alkenyl group which may be interrupted by a group; a heterocyclic group; an alkyl group, an alkenyl group, a nitro group, aryl group Moshiku may have a halogen group or a halogen-substituted alkyl group is an alkyl group; carbonyl substituted with an alkyl group; an alkenyl group, a nitro group, a halogen group or a halogen-substituted aralkyl group which may have an alkyl group Group ; or a sulfonyl group substituted with an alkyl group.)

(In the formula (2), _{Z 1} and _{Z 2} each independently represent an oxygen atom; C _{(CN) 2} group; or N-R group (R is an aryl group Moshiku may have a substituent is alkyl . showing a group) is _.X 11 _{to X 18} showing a each independently represent a hydrogen atom, a hydroxyl group, a halogen atom, nitro groups, trifluoromethyl group, carboxyl group, an amino group, an optionally substituted alkoxy group; and or aryl group which may have a substituent); an optionally substituted alkyl group; an optionally substituted carbonyl group; an optionally substituted ester group.

(In the formula _{(3), Z 11} and _{Z 12} each independently represent an oxygen atom; C _{(CN) 2} group; or N-R group (R is an aryl group Moshiku may have a substituent is alkyl . showing a group) _.X 21 _{to X 26} showing a each independently represent a hydrogen atom, a hydroxyl group, a halogen atom, nitro groups, trifluoromethyl group, carboxyl group, an amino group, an optionally substituted alkoxy group; and or aryl group which may have a substituent); an optionally substituted alkyl group; an optionally substituted carbonyl group; an optionally substituted ester group.

(In the formula _{(4), Z 21} and _{Z 22} each independently represent an oxygen atom; C _{(CN) 2} group; or N-R group (R is an aryl group Moshiku may have a substituent is alkyl . showing a group) _.X 31 _{to X 36} showing a each independently represent a hydrogen atom, a hydroxyl group, a halogen atom, nitro groups, trifluoromethyl group, carboxyl group, an amino group, an optionally substituted alkoxy group; and or aryl group which may have a substituent); an optionally substituted alkyl group; an optionally substituted carbonyl group; an optionally substituted ester group. The electrophotographic photosensitive member according to any one of claims 1 to 3, wherein the content of the electron transport compound contained in the intermediate layer is 31 to 70 mass% with respect to the entire intermediate layer. The electrophotographic photosensitive member according to claim 1, wherein the intermediate layer coating solution further comprises a isocyanate bets of compounds. The electrophotographic photosensitive member according to any one of claims 1 to 5 before Symbol collector load generating material is phthalocyanine. The electrophotographic photosensitive member according to claim 6 , wherein the gallium phthalocyanine is hydroxygallium phthalocyanine. The electrophotographic photosensitive member according to any one of claims 1 to 7, wherein the hole transport layer contains a polyarylate. An electrophotographic photosensitive member according to any one of claims 1-8, and developed a charging means for charging the surface of the electrophotographic photosensitive member, an electrostatic latent image formed on the surface of the electrophotographic photosensitive member with toner Te developing means for forming a toner image on the surface of the electrophotographic photosensitive member, and, on one body and at least one means selected from the group consisting of cleaning means for removing transfer residual toner on the surface of the electrophotographic photosensitive member A process cartridge which is supported and detachable from an electrophotographic apparatus main body. The electrophotographic photosensitive member according to any one of claims 1-8, charging means for charging the surface of the electrophotographic photosensitive member, charged electrophotographic photoconductor electrophotographic photosensitive member I rows exposure to the surface of the exposing means for forming an electrostatic latent image on the surface of the developing means for forming a toner image on the surface of the electrophotographic photosensitive member to develop the electrostatic latent image formed on the surface of the electrophotographic photosensitive member with toner, and an electrophotographic apparatus characterized in that it comprises a transfer means for transferring to a transfer material the toner image formed on the surface of the electrophotographic photosensitive member.