Electrophotographic photosensitive member, production method therefor, process cartridge, and electrophotographic image-forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorsHaruki Mori, Koichi Nakata, Masaki Nonaka, Shinji Takagi
Life of this patent
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Abstract
Provided is an electrophotographic photosensitive member that suppresses image smearing at the time of its repeated use, and expresses satisfactory wear resistance and electric characteristics. The electrophotographic photosensitive member includes a support and a photosensitive layer in the stated order, wherein a surface layer of the electrophotographic photosensitive member contains a copolymer of a hole-transportable compound having a chain-polymerizable functional group and a specific compound having maleimide groups.
Claims14
An electrophotographic photosensitive member comprising in this order:
- a support;
- and
- a photosensitive layer,
- wherein a surface layer of the electrophotographic photosensitive member contains a copolymer of a hole-transportable compound having a chain-polymerizable functional group and a compound represented by the following formula (1):
- in the formula (1), X represents a divalent group obtained by removing two hydrogen atoms from a hydrocarbon having 2 or more and 18 or less carbon atoms.
A production method for an electrophotographic photosensitive member, the production method comprising:
- preparing a coating liquid for a surface layer containing a hole-transportable compound having a chain-polymerizable functional group and a compound represented by the following formula (1);
- forming a coat of the coating liquid for a surface layer;
- and
- curing the coat to form a surface layer:
- in the formula (1), X represents a divalent group obtained by removing two hydrogen atoms from a hydrocarbon having 2 or more and 18 or less carbon atoms.
A process cartridge comprising:
- an electrophotographic photosensitive member including a support and a photosensitive layer in the stated order;
- and
- at least one unit selected from the group consisting of a charging unit, a developing unit, and a cleaning unit,
- the process cartridge integrally supporting the electrophotographic photosensitive member and the at least one unit, and being removably mounted onto a main body of an electrophotographic image-forming apparatus,
- wherein a surface layer of the electrophotographic photosensitive member contains a copolymer of a hole-transportable compound having a chain-polymerizable functional group and a compound represented by the following formula (1):
- in the formula (1), X represents a divalent group obtained by removing two hydrogen atoms from a hydrocarbon having 2 or more and 18 or less carbon atoms.
An electrophotographic image-forming apparatus comprising:
- an electrophotographic photosensitive member including a support and a photosensitive layer in the stated order;
- and
- at least one unit selected from the group consisting of a charging unit, an exposing unit, a developing unit, and a transferring unit,
- wherein a surface layer of the electrophotographic photosensitive member contains a copolymer of a hole-transportable compound having a chain-polymerizable functional group and a compound represented by the following formula (1):
- in the formula (1), X represents a divalent group obtained by removing two hydrogen atoms from a hydrocarbon having 2 or more and 18 or less carbon atoms.
Dependencies are inferred from the claim text.