Image bearing member, image forming apparatus, and process cartridge

An image bearing member comprising:

• an electroconductive substrate;
• a charge generation layer provided overlying the electroconductive substrate;
• a charge transport layer provided overlying the charge generation layer;
• and
• a cross-linked type charge transport layer provided overlying the charge transport layer,
• the cross-linked type charge transport layer comprising a structure unit deriving from a first component, a second component, and a third component,
• the first component comprising a copolymer having a weight average molecular weight of 2,000 to 100,000, having at least one cyclic structure selected from the group consisting of an adamantane ring and a norbornane ring, and having a structure represented by a Chemical structure 1 as a repeating unit,
• where Ra represents a hydrogen atom or methyl group and Rb represents a straight-chained saturated aliphatic hydrocarbon group having 8 to 34 carbon atoms,
• the second component comprising at least one of a radical polymerizable monomer and a radical polymerizable oligomer without a charge transport structure, and
• the third component comprising one or more kinds of radical polymerizable compounds having a charge transport structure.