Electrophotographic photoreceptor, manufacturing method of electrophotographic photoreceptor, process cartridge, and electrophotographic apparatus

A manufacturing method of an electrophotographic photoreceptor, comprising:

• preparing a coating liquid for a surface layer;
• forming a coating film of the coating liquid for a surface layer;
• and
• forming a surface layer of the electrophotographic photoreceptor by curing the coating film,
• wherein the coating liquid contains a copolymer of a composition which contains resin particles containing fluorine atoms, a charge transport compound having 2 or more polymerizable functional groups, a compound represented by General Formula (1),
• (in General Formula (1), R1 represents one of a hydrogen atom and a methyl group, and R2 represents an alkyl group having 3 or more to 6 or less carbon atoms), and
• a resin having a structure represented by General Formula (2) and a structure represented by General Formula (3),
• (in General Formula (2), R11 represents one of a hydrogen atom and a methyl group, R12 represents an alkylene group having 1 or more to 4 or less carbon atoms, and a is any integer among 3 to 5),
• (in General Formula (3), R111 represents one of a hydrogen atom and a methyl group, and R112 represents an alkyl group having 1 or more to 9 or less carbon atoms),
• the polymerizable functional groups are independently selected from an acryloyloxy group and a methacryloyloxy group, and
• a content of the compound represented by General Formula (1) in the composition is 0.10% by mass or more.

A process cartridge which supports an electrophotographic photoreceptor and at least one unit selected from the group consisting of a charging unit, a developing unit, a transfer unit, and a cleaning unit as a whole and is detachably mounted on the body of an electrophotographic apparatus,

• wherein the electrophotographic photoreceptor includes a support and a photosensitive layer,
• a surface layer of the electrophotographic photoreceptor contains a copolymer of a composition which contains resin particles containing fluorine atoms, a charge transport compound having 2 or more polymerizable functional groups, a compound represented by General Formula (1),
• (in General Formula (1), R1 represents one of a hydrogen atom and a methyl group, and R represents an alkyl group having 3 or more to 6 or less carbon atoms), and
• a resin having a structure represented by General Formula (2) and a structure represented by General Formula (3),
• (in General Formula (2), R11 represents one of a hydrogen atom and a methyl group, R12 represents an alkylene group having 1 or more to 4 or less carbon atoms, and a is any integer among 3 to 5),
• (in General Formula (3), R111 represents one of a hydrogen atom and a methyl group, and R112 represents an alkyl group having 1 or more to 9 or less carbon atoms),
• the polymerizable functional groups are independently selected from an acryloyloxy group and a methacryloyloxy group, and
• a content of the compound represented by General Formula (1) in the composition is 0.10% by mass or more.

An electrophotographic apparatus comprising:

• an electrophotographic photoreceptor,
• a charging unit;
• an exposing unit;
• a developing unit;
• and
• a transfer unit,
• wherein the electrophotographic photoreceptor includes a support and a photosensitive layer,
• a surface layer of the electrophotographic photoreceptor contains a copolymer of a composition which contains resin particles containing fluorine atoms, a charge transport compound having 2 or more polymerizable functional groups, a compound represented by General Formula (I),
• (in General Formula (1), R1 represents one of a hydrogen atom and a methyl group, and R2 represents an alkyl group having 3 or more to 6 or less carbon atoms), and
• a resin having a structure represented by General Formula (2) and a structure represented by General Formula (3),
• (in General Formula (2), R11 represents one of a hydrogen atom and a methyl group, R12 represents an alkylene group having 1 or more to 4 or less carbon atoms, and a is any integer among 3 to 5),
• (in General Formula (3), R111 represents one of a hydrogen atom and a methyl group, and R112 represents an alkyl group having 1 or more to 9 or less carbon atoms),
• the polymerizable functional groups are independently selected from an acryloyloxy group and a methacryloyloxy group, and
• a content of the compound represented by General Formula (1) in the composition is 0.10% by mass or more.