Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
AssigneeCanon Kabushiki Kaisha
InventorsTakahiro Mitsui, Koichi Nakata, Haruki Mori, Shubun Kujirai
Life of this patent
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Abstract
Provided is an electrophotographic photosensitive member improved both in wear resistance and in image unevenness. The electrophotographic photosensitive member includes a support, and a photosensitive layer and a surface layer on the support, wherein the surface layer is a cured product of a composition containing a compound represented by the formula (A) and a charge-transporting substance having at least one reactive functional group selected from the group consisting of a hydroxy group, a methoxy group, an amino group, a thiol group, and a carboxyl group.
Claims7
An electrophotographic photosensitive member comprising:
- a support;
- a photosensitive layer;
- and
- a surface layer,
- the photosensitive layer and the surface layer being arranged on the support,
- wherein the surface layer is a cured product of a composition containing:
- a compound represented by the formula (A);
- and
- a charge-transporting substance having at least one reactive functional group selected from the group consisting of a hydroxy group, a methoxy group, an amino group, a thiol group, and a carboxyl group:
- in the formula (A), RA1 and RA2 each independently represent an alkyl group having 1 or more and 4 or less carbon atoms, or a substituted or unsubstituted phenyl group, RA1 and RA2 may be bonded to each other to form a ring, RA3 represents an alkyl group having 1 or more and 4 or less carbon atoms, and RA4 and RA5 each represent an alkylene group having 1 or more and 4 or less carbon atoms.
A process cartridge comprising:
- an electrophotographic photosensitive member;
- 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 apparatus,
- wherein the electrophotographic photosensitive member includes a support, and a photosensitive layer and a surface layer on the support, and
- wherein the surface layer is a cured product of a composition containing:
- a compound represented by the formula (A);
- and
- a charge-transporting substance having at least one reactive functional group selected from the group consisting of a hydroxy group, a methoxy group, an amino group, a thiol group, and a carboxyl group:
- in the formula (A), RA1 and RA2 each independently represent an alkyl group having 1 or more and 4 or less carbon atoms, or a substituted or unsubstituted phenyl group, RA1 and RA2 may be bonded to each other to form a ring, RA3 represents an alkyl group having 1 or more and 4 or less carbon atoms, and RA4 and RA5 each represent an alkylene group having 1 or more and 4 or less carbon atoms.
An electrophotographic apparatus comprising:
- an electrophotographic photosensitive member comprising;
- a charging unit;
- an exposing unit;
- a developing unit;
- and
- a transferring unit,
- wherein the electrophotographic photosensitive member includes a support, and a photosensitive layer and a surface layer on the support, and
- wherein the surface layer is a cured product of a composition containing:
- a compound represented by the formula (A);
- and
- a charge-transporting substance having at least one reactive functional group selected from the group consisting of a hydroxy group, a methoxy group, an amino group, a thiol group, and a carboxyl group:
- in the formula (A), RA1 and RA2 each independently represent an alkyl group having 1 or more and 4 or less carbon atoms, or a substituted or unsubstituted phenyl group, RA1 and RA2 may be bonded to each other to form a ring, RA3 represents an alkyl group having 1 or more and 4 or less carbon atoms, and RA4 and RA5 each represent an alkylene group having 1 or more and 4 or less carbon atoms.
Dependencies are inferred from the claim text.