Organic photo sensitive member for electrophotography
AssigneeFuji Electric Co., Ltd.
InventorsNoriaki Kawata, Kiyoshi Hikima
Life of this patent
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Abstract
An organic photosensitive member for electrophotography is formed of a cylindrical supporting member and an organic photosensitive layer on an outer surface of the supporting member. The supporting member is formed of a material of 10.sup.4 ohm.multidot.cm in volume resistivity containing a cross-linking type polyphenylenesulfide resin as a main component, and a highly conductive carbon black of 10.sup.1 ohm.multidot.cm or less in volume resistivity. Thus, the supporting member has a light weight with good productivity and good chemical and thermal resistance. The supporting member can be made with dimensional accuracy despite its thin and long shape, and also has a uniform surface roughness, stable surface quality and good adhesion.
Claims9
An electrophotographic organic photosensitive member comprising,
- a cylindrical supporting member formed of a material of 10.sup.4 ohm.multidot.cm in volume resistivity containing a cross-linked polyphenylenesulfide resin as a main component, and a highly conductive carbon black of 10.sup.-1 ohm.multidot.cm or less in volume resistivity, an amount of the cross-linked polyphenylenesulfide resin contained in the cylindrical supporting member being at least 40 wt % to provide dimensional accuracy and an average particle diameter of the carbon black contained in the cylindrical supporting member being 20 to 50 nm, and
- an organic photosensitive layer formed on an outer surface of the cylindrical supporting member.
An electrophotographic organic photosensitive member formed by steps of:
- preparing a cylindrical supporting member formed of a material of 10.sup.4 ohm.multidot.cm in volume resistivity containing a cross-linked polyphenylenesulfide resin as a main component, and a highly conductive carbon black of 10.sup.-1 ohm.multidot.cm or less in volume resistivity, an amount of the cross-linked polyphenylenesulfide resin contained in the cylindrical supporting member being at least 40 wt % to provide dimensional accuracy, an amount of the carbon black contained in the cylindrical supporting member being less than 20 wt %, and an average particle diameter of the carbon black contained in the cylindrical supporting member being 20 to 50 nm so that a surface roughness of the cylindrical supporting member is 0.5-1.2 .mu.m,
- irradiating ultraviolet rays of 180 to 255 nm in wavelength on an outer surface of the cylindrical supporting member, and
- forming an organic photosensitive layer on the outer surface of the cylindrical supporting member.
An electrophotographic organic photosensitive member formed by steps of:
- preparing a cylindrical supporting member formed of a material of 10.sup.4 ohm.multidot.cm in volume resistivity containing a cross-linked polyphenylenesulfide resin as a main component, and a highly conductive carbon black of 10.sup.-1 ohm.multidot.cm or less in volume resistivity, an amount of the cross-linked polyphenylenesulfide resin contained in the cylindrical supporting member being at least 40 wt % to provide dimensional accuracy, an amount of the carbon black contained in the cylindrical supporting member being less than 20 wt %, and an average particle diameter of the carbon black contained in the cylindrical supporting member being 20 to 50 nm so that a surface roughness of the cylindrical supporting member is 0.5-1.2 .mu.m,
- inducing corona discharge treatment on an outer surface of the cylindrical supporting member, and
- forming an organic photosensitive layer on the outer surface of the cylindrical supporting member.
Dependencies are inferred from the claim text.