International Business Machines Corporation

Lexmark International, Inc.

Ronald A Merten

Robert L Vollmer

Vernon M Balthis

Donald Gini

Alex Simonetti

Theodore L Larson

Robert J Rumery

A photoconductor for use in electrophotographic reproduction devices is disclosed. This photoconductor exhibits improved oil resistance when used with liquid toners and excellent cycling stability. The photoconductors of the present invention utilize a phthalocyanine dye, particularly an X-form metal-free phthalocyanine, dispersed in a medium molecular weight polyvinyl chloride binder in the charge generating layer, and a charge transport molecule, particularly a hydrazone such as DEH, in a polyestercarbonate binder in the charge transport layer.

Electrophotographic photoconductor having improved cycling stability and

Magnetic recording media highly loaded with magnetic oxide particles. This media possesses a very smooth surface finish, and in operation exhibits low media wear, as well as low wear of an associated transducing head. This media includes an internal lubricant tridecyl stearate; i.e. a linear, 31-carbon fatty acid ester molecule formed by the ester linking of 13-carbon tridecyl alcohol and 18-carbon stearic acid, the molecule having the composition ##STR1##

Magnetic media having tridecyl stearate lubricant

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Boulder, CO, United States of America

Ronald A Merten