Electrophotographic photoreceptor, method of manufacturing the photoreceptor, and electrophotographic device

An electrophotographic photoreceptor that is a negative-charged, multi-layered photoreceptor, comprising:

• a conductive substrate;
• and
• a photosensitive layer including:
• a charge generation layer that is provided on the conductive substrate and that comprises a charge generation material and a resin binder that is cross-linked;
• and
• a charge transport layer that is provided in direct contact with the charge generation layer and that includes a charge transport portion that includes:
• a first hole transport material represented by General Formula (1) below,
• a curable resin as a binder resin, and
• a cross-linked structure between the first hole transport material and the curable resin:
• where, in Chemical Formula (1),
• Za denotes a polymerizable functional group represented by Structural Formula (2) below,
• Zb denotes a divalent group represented by Structural Formula(6) or (7) below,
• each of Ra, Rb, Rc and Rd denotes a branched or unbranched alkyl group having from 1 to 6 carbon atoms, an alkoxy group having from 1 to 6 carbon atoms, a substituted or
• unsubstituted phenyl group, or a substituted or unsubstituted styryl group,
• 1 is an integer of 0 or 1,
• m is an integer in a range of 0 to 5,
• n, o, and p are each an integer in a range of 0 to 4, and
• q is an integer in a range of 1 to 3;
• and
• Structural Formulae (2), (6), and (7)
• where:
• in Structural Formula (6), t is an integer in a range of 1 to 6;
• and
• in Structural Formulae (6) and (7), *1 and *2 respectively represent binding positions, wherein Zb is bonded to a phenyl group at a *2 side.

An electrophotographic photoreceptor that is a positive-charged, monolayer photoreceptor, comprising:

• a conductive substrate;
• and
• a photosensitive layer that is provided on the conductive substrate and that comprises a charge generation material and a charge transport portion that includes:
• a first hole transport material represented by General Formula (1) below,
• a curable resin as a binder resin, and
• a cross-linked structure between the first hole transport material and the curable resin:
• where, in Chemical Formula (1),
• Za denotes a polymerizable functional group represented by Structural Formula (2) below,
• Zb denotes a divalent group represented by Structural Formula (6) or (7) below,
• each of Ra, Rb, Rc and Rd denotes a branched or unbranched alkyl group having from 1 to 6 carbon atoms, an alkoxy group having from 1 to 6 carbon atoms, a substituted or unsubstituted phenyl group, or a substituted or unsubstituted styryl group,
• 1 is an integer of 0 or 1,
• m is an integer in a range of 0 to 5,
• n, o, and p are each an integer in a range of 0 to 4, and
• q is an integer in a range of 1 to 3;
• and
• Structural Formulae (2), (6) and (7)
• where:
• in Structural Formula (6), t is an integer in a range of 1 to 6;
• and
• in Structural Formulae (6) and (7), *1 and *2 respectively represent binding positions,
• wherein Zb is bonded to a phenyl group at a *2 side.