Electrophotographic sensitive member suitable for coherent beams and method of producing same

Claim 1

A method of producing an electrophotographic sensitive member in which the interference produced between twice reflected rays and incident rays may be reduced, whereby a striped pattern may be prevented from being produced on an image formed by a laser printer, said member comprising an electrically conductive substrate coated with a photosensitive layer consisting of at least a photoconductive layer and receiving laser rays from the surface side of said photosensitive layer to produce photocarriers in said photoconductive layer, wherein the product of a×b is 0.2 or less, where a is the transmissivity of said laser rays through said photosensitive layer and b is the reflection factor of said laser rays by said substrate, said method comprising the following steps: previously mirror-polishing the surface of said substrate so as to reach the surface roughness of 0.2 μm or less; etching the surface of said substrate so as to reach the surface roughness of 0.2 to 4 μm; and coating said substrate with said photosensitive layer.

Claim 2

A method of producing an electrophotographic sensitive member in which the interference produced between twice reflected rays and incident rays may be reduced, whereby a striped pattern may be prevented from being produced on an image formed by a laser printer, said member comprising an electrically conductive substrate coated with a photosensitive layer consisting of at least a photoconductive layer and receiving laser rays from the surface side of said photosensitive layer to produce photocarriers in said photoconductive layer, wherein the product of a×b is 0.2 or less, where a is the transmissivity of said laser rays through said photosensitive layer and b is the reflection factor of said laser rays by said substrate, said method comprising the following steps: previously mirror-polishing the surface of said substrate so as to reach the surface roughness of 0.2 μm or less; etching the surface of said substrate so as to reach the surface roughness of 0.2 to 4 μm; and coating said substrate with said photosensitive layer.

Claim 10

A method of forming an electrophotographic sensitive member in which the interference produced between twice reflected rays and incident rays may be reduced, whereby a striped pattern may be prevented from being produced on an image formed by a laser line printer of the type having a recording member having transmission wave lengths of 400 to 850 nm, the method comprising the steps of: (a) treating a major surface of a conductive substrate such that the surface roughness of the major surface is 0.2 m or less; (b) treating the major surface resulting from step (a) so as to reach a surface roughness ranging from 0.2 to 4.0 m; and (c) forming a photosensitive layer on the major surface resulting from step (b) so that the product of a and b is 0.2 or less, where a is the transmissivity of the laser through the photosensitive layer and where b is the reflection factor of the conductive substrate major surface.

Claim 11

A method of forming an electrophotographic sensitive member in which the interference produced between twice reflected rays and incident rays may be reduced, whereby a striped pattern may be prevented from being produced on an image formed by a laser line printer of the type having a recording member having transmission wave lengths of 400 to 850 nm, the method comprising the steps of: (a) treating a major surface of a conductive substrate such that the surface roughness of the major surface is 0.2 m or less; (b) treating the major surface resulting from step (a) so as to reach a surface roughness ranging from 0.2 to 4.0 m; and (c) forming a photosensitive layer on the major surface resulting from step (b) so that the product of a and b is 0.2 or less, where a is the transmissivity of the laser through the photosensitive layer and where b is the reflection factor of the conductive substrate major surface.