Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Radiation-sensitive composition or product
Reexamination Certificate
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.
Ahuja Suresh K.
Horgan Anthony M.
Mishra Satchidanand
Murti Dasarao K.
Yu Robert C. U.
Dote Janis L.
Palazzo Eugene O.
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