Image bearing member, image forming apparatus, and process cartridge

An image bearing member comprising:

• an electroconductive substrate;
• a photosensitive layer overlying the electroconductive substrate;
• and
• a protection layer overlying the photosensitive layer,
• the protection layer comprising a diamine compound represented by a chemical structure 1,
• more of the diamine compound being disposed on a photosensitive layer side than a surface side relative to a midpoint in a depth direction of the protection layer:
• where X represents a substituted or non-substituted arylene group, or a compound represented by a chemical structure 2:
• where R represents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms,
• where A1, A2, A3, and A4 independently represent (i) an alkyl group having 1 to 4 carbon atoms, (iii) a substituted or non-substituted aryl group, or (ii) —CH2(CH2)mZ, where Z represents a substituted or non-substituted aryl group, a substituted or non-substituted cycloalkyl group, and a substituted or non-substituted heterocycloalkyl group, and m represents 0 or 1, and a case in which each of A1, A2, A3, and A4 is (iii) is excluded, and
• where B1 and B2 represent —CH2—, —CH2CH2—, —CH2—Ara—, —Ara—CH2—, —CH2CH2—Ara—, and —Ara—CH2CH2—, and Ara represents a substituted or non-substituted arylene group,
• where the protection layer further comprises a cured material formed by a radical polymerizable compound having a charge transport structure and a radical polymerizable compound having no charge transport structure,
• where the photosensitive layer comprises a laminate structure including a charge generation layer and a charge transport layer, and
• where the diamine compound is included in the charge transport layer.