Patent ID: 7033717
Filing Date: 2006-04-25
Classification: G03G

Abstract:
1. A process for producing an electrophotographic photosensitive member having a layer formed of a non single crystal material, the process comprising the steps of: as a first step, placing a cylindrical substrate having a conductive surface, in a first film-forming chamber having an evacuation means and a source gas feed means and capable of being made vacuum-airtight, and decomposing a source gas by means of a high-frequency power to deposit on the cylindrical substrate a first layer formed of a non-single-crystal material; as a second step, taking out of the first film-forming chamber the cylindrical substrate on which the first layer has been deposited; and as a third step, placing the cylindrical substrate on which the first layer has been deposited, in a second film-forming chamber having an evacuation means and a source gas feed means and capable of being made vacuum-airtight, and decomposing a source gas by means of a high-frequency power to deposit on the first layer a second layer comprising an upper-part blocking layer formed of a non-single-crystal material, wherein said upper-part blocking layer comprises a non-single-crystal material composed chiefly of silicon atoms and containing at least one of carbon atoms, oxygen atoms and nitrogen atoms, wherein said a non-single-crystal material further contains atoms capable of controlling conductivity, and wherein said atoms capable of controlling conductivity which are contained in said upper-part blocking layer comprises an element belonging to Group 13 or Group 15 of the periodic table in a content of from 100 atomic ppm or more to 30,000 atomic ppm or less.