Patent ID: 7316877

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: R 1 —N═N—Ar 1 —X—Ar 2 —N═N—R 2 where R 1 and R 2 comprise, each independently, a 4-oxo-2,5-cyclohexadiene-1-ylidenyl group; X comprises oxy, thio, sulfonyl, sulfinyl, sulfonyldioxy, azo, carbonyl, thiocarbonyl, carbonyldioxy, oxalyl, an arylene group, an arylenebisazo group, an imino group, a hydrazo group, a carbonimidoyl group, a vinylene group, or a combination thereof; and Ar 1 and Ar 2 comprise, each independently, an aromatic group; and (b) a charge generating compound.