Abstract: The present invention relates to a photosensitive member having an a-C layer as a charge transporting layer, which a-C layer is specified in the ratio of the number of saturated carbon bonding with hydrogen to the number of saturated carbon not bonding with hydrogen or in the ratio of the number of unsaturated carbon bonding with hydrogen to the number of unsaturated carbon not bonding with hydrogen; the photosensitive member has an excellent charge transportability as well as a chargeability.

Abstract: This invention provides a photosensitive member with a surface protector layer. The surface protective layer comprises a resin layer and an amorphous carbon layer. The surface protective layer of the invention is effective for a soft photoconductive layer, for example, an inorganic photoconductive layer such as a selenium layer, a selenium-arsenic, selenium-tellurium layer, and an organic photoconductive layer. The surface protective layer does not deteriorate the photosensitive properties. The photosensitive layer of the invention is excellent in durability and resistance to peeling off.

Abstract: The practice of this invention provides a photosensitive member which comprises a charge transporting layer and a charge generating layer, said charge transporting layer comprising amorphous carbon containing hydrogen, said amorphous carbon comprising hydrogen bonded carbon N.sub.1, and carbon N.sub.2 free from linking with hydrogen, the ratio of the amount of N.sub.1 to that of N.sub.2 being 1:0.1 to 1:1, and said hydrogen being contained in an amount of 20 to 67 atomic %;or said amorphous carbon comprising unsaturated carbon N.sub.3 linked with hydrogen and saturated carbon N.sub.4 linked with hydrogen, the ratio of the amount of N.sub.3 to that of N.sub.4 being 1:1 to 1:16, said hydrogen being contained in an amount of 20 to 67 atomic %;or said amorphous carbon comprising unsaturated compound N.sub.5 free from linking with hydrogen and saturated carbon N.sub.6 free from linking with hydrogen, the ratio of the amount of N.sub.5 to that of N.sub.5 being 1:20 to 1:0.

Abstract: The present invention provide a photosensitive member comprising at least an organic photoconductive layer and a surface protective layer on an electrically conductive substrate, wherein the surface protective layer comprises an amorphous carbon layer with non-directive upheave patterns, which is formed by a glow discharge method.A photosensitive member of the invention is excellent in the reproducibility of fine lines as well as the improvement of the prevention of filming phenomenon.A photosensitive member of the invention can be used for a long time.

Abstract: The practice of this invention provides a photosensitive member which comprises a charge transporting layer and a charge generating layer, said charge transporting layer essentially consists of a plasma-polymerized layer of amorphous material comprising methyl group and methylene group in the ratio of the number of the former to the number of the latter being 0.5:1 to 3:1. The photosensitive member obtained thereby is excellent in charge-transporting property and chargeability and, moreover, exhibits advantages corona resistance and resistances to acids, moisture and heat and also in physical properties such as stiffness.

Abstract: The practice of this invention provides a photosensitve member which comprises a charge transporting layer and a charge generating layer, said charge transporting layer essentially consisting of plasma-polymerized layer of amorphous material having carbon atoms constituting methyl group in a ratio of 20 to 60% against all the carbon atoms therein. The photosensitve member obtained thereby is excellent in charge-transporting property and chargeability and, moreover, exhibits advantages in corona resistance and resistances to acids, moisture and heat and also in physical properties such as stiffness.

Abstract: An image forming method wherein an electrostatic latent image formed on a photosensitive member having an organic plasma polymerized layer formed on the surface of the member is developed by using a toner having a pH of about 2.5 to 6.5. By this method, a sharp and clear image can be obtained over a long period of time.

Abstract: The practice of this invention provides a photosensitive member which comprises a charge generating layer, and a plasma-polymerized layer, wherein said plasma-polymerized layer having an infrared absorption spectrum of a ratio of coefficients of absorptivities attributed to methyl group (--CH.sub.3) to those of methylene group (--CH.sub.2 --), and is a coefficient of absorptivity attributed to methylene group (--CH.sub.2 --) at about 2925 cm.sup.-1. The photosensitive member obtained thereby is excellent in charge-transporting property and chargeability and, moreover, exhibits advantages in corona resistance and resistances to acids, moisture and heat and also in physical properties such as stiffness.

Abstract: A photosensitive member of the present invention comprising an electrically conductive substrate, a photosensitive layer comprising an organic material and a hydrogen-containing amorphous carbon overcoat layer containing halogen atoms and at least one or more elements selected from the group consisting of chalcogen and elements in Group III, IV and V of the periodic table.The overcoat layer contains hydrogen in an amount of about 5 to about 50 atomic % based on the combined amount of hydrogen atoms and carbon atoms.

Abstract: A photosensitive member of the present invention comprises an electrically conductive substrate, a photoconductive layer and an overcoat layer.The photoconductive layer comprises selenium-arsenic alloy layer, or selenium layer and selenium-tellurium layer formed in this order. The overcoat layer comprises amorphous carbon containing hydrogen and contains at least one or more elements selected from the group consisting of chalcogen and elements in Group III and IV of the periodic table.The photosensitive member of this construction is harmless and excellent in electrophotographic characteristics inclusive of durability and surface hardness.

Abstract: A Photosensitive member of the present invention comprises an electrically conductive substrate, a photoconductive layer and an overcoat layer.The photoconductive layer comprises selenium-arsenic alloy layer, or selenium layer and selenium-tellurium layer formed in this order. The overcoat layer comprises amorphous carbon containing hydrogen and contains elements in Group V of the periodic table.The overcoat layer may contain at least one or more elements selected from the group consisting of oxygen, nitrogen, chalcogen, halogen and elements in Group III and IV of the periodic table in addition to elements in Group V of the periodic table.The photosensitive member of this construction is harmless and excellent in electrophotographic characteristics inclusive of durability and surface hardness.

Abstract: A photosensitive member of the present invention comprises an electrically conductive substrate, a photosensitive layer comprising an organic material and a hydrogen-containing amorphous carbon overcoat layer containing one or more elements selected from the group consisting of chalcogen and elements in Group III, IV and V of the periodic table.The overcoat layer contains hydrogen in an amount of about 30 to about 60 atomic % based on the combined amount of hydrogen atoms and carbon atoms.

Abstract: A photosensitive member of the present invention comprises an electrically conductive substrate, a photoconductive layer comprising an organic material and a hydrogen-containing amorphous carbon overcoat layer containing one or more atoms selected from the group consisting of halogen, oxygen and nitrogen.The overcoat layer contains hydrogen in an amount of about 5 to about 50 atomic % based on the combined amount of hydrogen atoms and carbon atoms.

Abstract: A photosensitive member comprising an electrically conductive substrate, a charge generating layer and a charge transporting layer comprising amorphous carbon which contains hydrogen.The charge transporting layer contains about 0.1 to about 10 atomic % of chalcogen atoms or transition metal elements based on all the constituent atoms therein.The photosensitive member of this construction is excellent in electrophotographic characteristics inclusive of charge transportability and charging ability.

Abstract: A photosensitive member of the present invention comprises an electrically conductive substrate, a hydrogenated and/or halogenated amorphous silicon:germanium charge generating layer and a hydrogen-containing amorphous carbon charge transporting layer which contains halogen and oxygen and/or nitrogen. The charge generating layer may further contain various elements such as boron or phosphorus, oxygen, nitrogen and carbon as a chemical modifier.

Abstract: A photosensitive member of the present invention comprises an electrically conductive substrate, a hydrogenated and/or halogenated amorphous silicon:germanium charge generating layer and a hydrogen-containing amorphous carbon charge transporting layer which contains oxygen and/or nitrogen. The charge generating layer may further contain various elements such as boron or phosphorus, oxygen, nitrogen and carbon as a chemical modifier.

Abstract: A photosensitive member of the present invention comprises an electrically conductive substrate, a charge generating layer and a charge transporting layer comprising amorphous carbon which contains hydrogen.The charge transporting layer contains about 0.1 to about 25 atomic % of halogen based on all the constituent atoms therein, and in addition to halogen, oxygen and/or nitrogen may be contained in the charge transporting layer.The photosensitive member of this construction is excellent in electrophotographic characteristics inclusive of charge tranportability and charging ability.

Abstract: This invention discloses a photosensitive member which comprises in the order an electrically conductive substrate, a first layer region of amorphous silicon including carbon, a second layer region of amorphous silicon and a third layer region of amorphous silicon including germanium. Group IIIA impurity of the Periodic Table is included in all the layer region so as to be most enriched at the first layer region. The first layer region comprises a first amorphous silicon transient layer to assure the adhesion between the first and second layer region. Similarly, the third layer region comprises a second amorphous silicon transient layer to assure the adhesion between the second and third layer region.This invention further relates to a process for producing by glow discharge a photosensitive member of the present invention.

Abstract: A photosensitive member of the present invention comprises an electrically conductive substrate, a charge generating layer and a charge transporting layer comprising amorphous carbon which contains a chain hydrocarbon and a cyclic hydrocarbon.The charge transporting layer is formed by using a chain hydrocarbon and a cyclic hydrocarbon such that the flow rate ratio of the former to the latter is preferably 19:1-1:19.The photosensitive member of this construction is excellent in electrophotographic characteristics inclusive of charge transportability and charging ability.

Abstract: A resist layer comprising an organic polymer which is formed by subjecting a methacrylate incorporating fluorine and/or an acrylate incorporating fluorine to a glow-discharge plasma polymerization process.Further, a process for forming resist pattern on the resist layer comprising a step of forming the resist layer; a step of forming a latent image by exposing the resist layer to an electron beam; and a step of visualizing the latent image by plasma etching.