Patent ID: 7220523

Claim:
An organophotoreceptor comprising an electrically conductive substrate and a photoconductive element on the electrically conductive substrate, the photoconductive element comprising: (a) a charge transport material having the formula where R 1 , R 2 , R 3 , R 4 , R 5 , and R 6 comprise, each independently, H, an alkyl group, an alkenyl group, an alkynyl group, an aromatic group, or a heterocyclic group; X 1 and X 2 are, each independently, a —(CH 2 ) n — group, where n is an integer between 1 and 10, inclusive, and one or more of the methylene groups is optionally replaced by O, S, C═O, O═S═O, an NR a group, or a CR c R d group, where R a , R c , and R d , are, each independently, H, a hydroxyl group, a thiol group, a carboxyl group, an amino group, a halogen, an alkyl group, or an alkoxy group; X 3 is linking group; and Q 1 , Q 2 , Q 3 , Q 4 , Q 5 , and Q 6 are, each independently, O, S, NR, where R is, H, or an alkyl group; and (b) a charge generating compound.