Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus

A process cartridge integrally supporting an electrophotographic photosensitive member and at least one unit selected from the group consisting of a charging unit, a developing unit, a transfer unit, and a cleaning unit, the process cartridge being detachably attachable to a main body of an electrophotographic apparatus,

• wherein the electrophotographic photosensitive member includes a support and a surface layer,
• the surface layer contains a copolymer of a composition which contains at least a compound represented by the following general formula (1) and a compound represented by the following general formula (2),
• a content of the compound represented by the general formula (1) in the composition is 25 mass % or more and 70 mass % or less with respect to a total content of the compound represented by the general formula (1) and the compound represented by the general formula (2), and
• the total content of the compound represented by the general formula (1) and the compound represented by the general formula (2) is 55 mass % or more with respect to a total mass of the composition:
• in the general formula (1), a and b are 0 or 1, p is an integer of 2 or more and 5 or less:
• in the general formula (2), e is 0 or 1, q is an integer of 2 or more and 5 or less:
• however, at least one of a, b, and e is 1.

An electrophotographic apparatus comprising an electrophotographic photosensitive member, a charging unit, an exposure unit, a developing unit and a transfer unit,

• wherein the electrophotographic photosensitive member includes a support and a surface layer,
• the surface layer contains a copolymer of a composition which contains at least a compound represented by the following general formula (1) and a compound represented by the following general formula (2),
• a content of the compound represented by the general formula (1) in the composition is 25 mass % or more and 70 mass % or less with respect to a total content of the compound represented by the general formula (1) and the compound represented by the general formula (2), and
• the total content of the compound represented by the general formula (1) and the compound represented by the general formula (2) is 55 mass % or more with respect to a total mass of the composition:
• in the general formula (1), a and b are 0 or 1, p is an integer of 2 or more and 5 or less:
• in the general formula (2), e is 0 or 1, q is an integer of 2 or more and 5 or less:
• however, at least one of a, b, and e is 1.