Organophotoreceptor having an improved ground stripe
AssigneeSamsung Electronics Co., Ltd.
InventorsNam Jeong Lee, Zbigniew Tokarski, Kam Wah Law
Life of this patent
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Abstract
An organophotoreceptor comprising (a) at least one photoconductive element capable of retaining an electrophotographic latent image; (b) an electrically conductive substrate having an electrically conductive surface; (c) an electrically conductive ground stripe adjacent to the photoconductive element and in electrical contact with the electrically conductive substrate, wherein the electrically conductive ground stripe comprising a film forming binder, conductive particles, inorganic particles having a Mohs hardness greater than 5, and a surfactant; (d) at least a charge transport compound; and (e) at least a charge generating compound.
Claims39
An organophotoreceptor comprising:
- (a) at least one photoconductive element capable of retaining an electrophotographic latent image;
- (b) an electrically conductive substrate having an electrically conductive surface;
- (c) an electrically conductive ground stripe adjacent to the photoconductive element and in electrical contact with the electrically conductive substrate, wherein the electrically conductive ground stripe comprises a film forming binder, conductive particles, inorganic particles having a Mohs hardness greater than 5, and a surfactant;
- (d) at least a charge transport compound;
- and
- (e) at least a charge generating compound.
An electrophotographic imaging apparatus comprising:
- (a) a plurality of support rollers, at least one having a diameter no greater than about 40 mm;
- and
- (b) an organic photoreceptor in the form of a flexible belt threaded around said support rollers, said organophotoreceptor comprising:
- (i) at least one photoconductive element capable of retaining an electrophotographic latent image;
- (ii) an electrically conductive substrate having an electrically conductive surface;
- and
- (iii) an electrically conductive ground stripe adjacent to the photoconductive element and in electrical contact with the electrically conductive substrate, wherein the electrically conductive ground stripe comprises a film forming binder, conductive particles, and inorganic particles having a Mohs hardness greater than 5;
- (iv) at least a charge transport compound;
- and
- (v) at least a charge generating compound.
An electrophotographic imaging process comprising:
- (a) applying an electrical charge to a surface of an organophotoreceptor comprising:
- (i) at least one photoconductive element capable of retaining an electrophotographic latent image;
- (ii) an electrically conductive substrate having an electrically conductive surface;
- and
- (iii) an electrically conductive ground stripe adjacent to the photoconductive element and in electrical contact with the electrically conductive substrate, wherein the electrically conductive ground stripe comprising a film forming binder, conductive particles, inorganic particles having a Mohs hardness greater than 5, and a surfactant;
- (iv) at least a charge transport compound;
- and
- (v) at least a charge generating compound;
- (b) imagewise exposing said surface of said organic photoreceptor to radiation to dissipate charge in selected areas and thereby form a pattern of charged and uncharged areas on said surface;
- (c) contacting said surface with a liquid toner comprising a dispersion of colorant particles in an organic liquid to create a toned image;
- and
- (d) transferring said toned image to a substrate.
An electrically conductive ground stripe comprising:
- (a) a film forming binder;
- (b) conductive particles;
- (c) inorganic particles having a Mohs hardness greater than 5;
- and
- (d) a surfactant.
A process of making a ground stripe comprising the steps of:
- (a) dispersing inorganic particles having a Mohs hardness greater than 5 in a first liquid to form a first inorganic particle dispersion;
- (b) dispersing a mixture of conductive particles, a surfactant, a binder, and said first inorganic particle dispersion in a second liquid to form a ground stripe dispersion;
- (c) coating said ground stripe dispersion on a substrate;
- and
- (d) hardening said ground stripe dispersion on said substrate.
A process of making a ground stripe comprising the steps of:
- (a) dispersing inorganic particles having a Mohs hardness greater than 5 in a first liquid to form an inorganic particle dispersion;
- (b) dispersing a mixture of conductive particles, a surfactant, and a binder in a second liquid to form a conductive particle dispersion;
- (c) mixing or dispersing said inorganic particle dispersion and said conductive particle dispersion together to form a ground stripe dispersion;
- (d) coating said ground stripe dispersion on a substrate;
- and
- (e) drying said ground stripe dispersion on said substrate.
A process of making a ground stripe comprising the steps of:
- (a) mixing inorganic particles having a Mohs hardness greater than 5 in a first liquid to form a first inorganic particle dispersion;
- (b) dispersing a mixture of conductive particles, a binder, and said the first inorganic particle dispersion in a second liquid to form a ground stripe dispersion;
- (c) mixing or dispersing said ground stripe dispersion with a surfactant;
- (d) coating said ground stripe dispersion on a substrate;
- and
- (e) drying said ground stripe dispersion on said substrate.
Dependencies are inferred from the claim text.