Imaging members

Details Imaging members Imaging members

2007-11-06

2007-11-06

Dote, Janis L. (Department: 1756)

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Radiation-sensitive composition or product

C430S058050, C430S058350, C430S058400, C430S058650, C430S058750, C430S058800, C430S059600, C430S970000

Reexamination Certificate

active

11611555

ABSTRACT:
An electrophotographic imaging member having a charge generating layer and a charge transport layer overlayed thereon is provided. The charge transport layer has a lower surface and an upper surface, wherein the lower surface is in contiguous contact with the charge generating layer. The charge transport layer comprises a film forming polymer binder and a charge transport compound molecularly dispersed or dissolved therein to form a solid solution. The concentration of the charge transport compound in the charge transport layer decreases from the lower surface to the upper surface. In such a construction, the resulting charge transport layer exhibits enhanced cracking suppression, improved wear resistance, excellent imaging member electrical performance, and improved copy print out quality.

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Diamond, A.S.,Handbook of Imaging Materials, Marcel Dekker, Inc., NY (1991), pp. 395-396.

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