Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Process of making radiation-sensitive product
Reexamination Certificate
2006-04-25
2006-04-25
Goodrow, John L (Department: 1756)
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Process of making radiation-sensitive product
C427S248100, C428S446000
Reexamination Certificate
active
07033721
ABSTRACT:
The invention provides a method for producing an electrophotographic photosensitive member such that even if abnormal grown portions called spherical protrusions203exist on the surface of the photosensitive member, they do not appear on images, thus making it possible to considerably alleviate image defects. The method for producing the electrophotographic photosensitive member including layers each constituted by a non-single crystal material includes the steps of placing a substrate having a conductive surface in a film forming apparatus capable of being airtight-sealed under vacuum having evacuating means and raw material gas supplying means, and decomposing at least a raw material gas by a high frequency power to form a first layer constituted by at least a non-single crystal material on the substrate as a first step; exposing the substrate with the first layer formed thereon to a gas containing oxygen and water vapor as a second step; and decomposing at least a raw material gas by a high frequency power in the film forming apparatus to form on the first layer a second layer including an upper blocking layer constituted by a non-single crystal material as a third step.
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Ehara Toshiyuki
Hashizume Junichiro
Hitsuishi Koji
Hosoi Kazuto
Kojima Satoshi
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Goodrow John L
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