Electrophotographic photosensitive member, method for producing the same, process cartridge, and electrophotographic apparatus
AssigneeCanon Kabushiki Kaisha
InventorsTakeshi Murakami, Hiroyuki Tomono, Kunihiko Sekido, Atsushi Okuda
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Abstract
An undercoat layer of an electrophotographic photosensitive member includes a product having electron transportability and a particle including titanium oxide, and a surface layer of the electrophotographic photosensitive member includes a product of a composition including a hole transporting substance having a polymerizable functional group and a photopolymerization initiator.
Claims19
An electrophotographic photosensitive member comprising:
- a conductive support;
- an undercoat layer on the support;
- and
- a photosensitive layer on the undercoat layer,
- wherein the undercoat layer comprises:
- three dimensional crosslinked product including a portion having electron transportability as a partial structure;
- and
- a particle including titanium oxide, and
- wherein a surface layer of the electrophotographic photosensitive member comprises a product of a composition comprising:
- a hole transporting substance having a polymerizable functional group;
- and
- a photopolymerization initiator.
A method for producing an electrophotographic photosensitive member comprising a conductive support, an undercoat layer on the support, and a photosensitive layer on the undercoat layer, the method comprising the steps of:
- (i) forming the undercoat layer comprising a three dimensional crosslinked product including a portion having electron transportability as a particle structure and a particle including titanium oxide;
- (ii) forming a coating film of a coating liquid, the coating liquid comprising a composition comprising a hole transporting substance having a polymerizable functional group and a photopolymerization initiator;
- and
- (iii) irradiating the coating film with ultraviolet radiation to cause the composition to be in order to form a surface layer of the electrophotographic photosensitive member.
A method for producing an electrophotographic photosensitive member comprising a conductive support, an undercoat layer on the support, and a photosensitive layer on the undercoat layer, the undercoat layer being a laminated undercoat layer comprising a first undercoat layer and a second undercoat layer formed on the first undercoat layer, the method comprising the steps of:
- (i) forming the first undercoat layer comprising a particle including titanium oxide;
- (ii) forming the second undercoat layer on the first undercoat layer, the second undercoat layer comprising a three dimensional crosslinked product including a portion having electron transportability as a partial structure;
- (iii) forming a coating film of a coating liquid, the coating liquid comprising a composition comprising a hole transporting substance having a polymerizable functional group and a photopolymerization initiator;
- and
- (iv) irradiating the coating film with ultraviolet radiation to cause the composition to be in order to form a surface layer of the electrophotographic photosensitive member.
Dependencies are inferred from the claim text.