Patent ID: 6416389
Filing Date: 2002-07-09
Classification: B24C,C23C,G03G

Abstract:
A process comprisingproviding a member having an exposed outer metal surface, propelling irregularly shaped solid carbon dioxide granules against the exposed outer metal surface with sufficient force to alter the texture of the outer metal surface to a predetermined surface roughness; depositing a material selected from the group consisting of a charge generating material and a charge transport material after altering the texture of the outer surface to the predetermined surface roughness; depositing onto the surface an optional blocking layer prior to depositing a material selected from the group consisting of a charge generating material and a charge transport material; and wherein the predetermined surface roughness is defined by Ra ranging from about 0.05 micrometer to about 0.5 micrometer, Rmax ranging from about 0.5 micrometer to about 4 micrometers, Rk ranging from about 0.2 micrometer to about 2 micrometers, Wt ranging from about 0.1 micrometer to about 1 micrometer, and Pt ranging from about 0.8 micrometer to about 6 micrometers.