Organophotoreceptor with charge transport material having two hydrazone groups, electrophotographic imaging apparatus comprising the same and electrophotographic imaging process using the same

摘要

The present invention has been as an organophotoreceptor comprising an electrically conductive substrate and a photoconductive element on the electrically conductive substrate, the photoconductive element (a) to a charge transport material, and (b) a charge generating compound having the formula 1, improving It relates to the organophotoreceptor: ; Formula 1 ; In the formula 1, R _1, R _2, R _3, R _4, R _5, R _6, R ₇ and R ₈ are, independently represents an alkyl group, a cyclic group alkaryl group, an aryl group or heterocyclic, X and X ' is an aromatic group independently, Z has the formula - (CH _2)m - minute and branched or linear divalent linking group, m is between 1 and 30, inclusive integer, one or more of the methylene groups with is O, S, C = O, O = S = O, a heterocyclic group, an aromatic group, urethane, urea, an ester group, NR ₉ group, CHR ₁₀ group or a CR ₁₁ R ₁₂ group may be substituted, R ₉ and R ₁₀ is, independently, H, hydroxyl, thiol, an alkoxy group, an alkyl group or an aryl group, R ₁₁ and R ₁₂ are, independently, H, hydroxyl, thiol, an alkoxy group, an alkyl group, an aryl group or a cyclic ring a part of. ; An electrophotographic image forming apparatus and method of using the charge transport material is also described. The charge transport material of this invention has excellent electrostatic properties.