Electrophotographic photosensitive member, process cartridge, and image forming apparatus

An electrophotographic photosensitive member comprising:

• a conductive substrate and a photosensitive layer, wherein
• the photosensitive layer is a single layer, and contains a charge generating material, an electron transport material, a binder resin, and a hole transport material,
• the electron transport material includes a compound represented by general formula (1), and
• the binder resin includes a polycarbonate resin having an end group and a main chain represented by general formula (10),
• where in the general formula (1), R1 and R2 each represent, independently of one another, a hydrogen atom, an alkyl group, a heterocyclic group, an alkoxy group, an aralkyl group, an allyl group, or an aryl group optionally substituted with at least 1 and no more than 5 substituents selected from the group consisting of a halogen atom, an alkyl group, and an alkoxy group,
• in the general formula (10),
• R101, R102, R103, and R104 each represent, independently of one another, a hydrogen atom, an alkyl group having a carbon number of at least 1 and no greater than 3 that is optionally substituted with a halogen atom, or an aryl group having a carbon number of at least 6 and no greater than 14,
• R103 and R104 may be bonded to each other to represent a bivalent group represented by general formula (X),
• R105 and R106 each represent an alkyl group having a carbon number of at least 1 and no greater than 3,
• m1 and m2 each represent, independently of one another, 0 or 1,
• W represents a single bond, —O—, or —CO—,
• n represents a number of greater than 0 and no greater than 100,
• when n represents 100, the end group is a first end group having a halogen atom, and
• when n represents a number of greater than 0 and less than 100, the end group is the first end group having a halogen atom or a second end group having no halogen atom, and
• where in the general formula (X), t represents an integer of at least 1 and no greater than 3.