Device for and method of cleaning photoreceptor medium of electrophotographic image forming apparatus
AssigneeSamsung Electronics Co., Ltd.
InventorsSeung-Young Byun, Jun-Hee Cho
Life of this patent
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Abstract
A device for and a method of cleaning a photoreceptor medium of an electrophotographic image forming apparatus include a magnet which is installed in a lengthwise direction of the photoreceptor medium and is separated from an outer surface of the photoreceptor medium, and a magnetic fluid which fills a space between the magnet and the outer surface of the photoreceptor medium and closely contacts the outer surface of the photoreceptor medium. Accordingly, abrasion of the photoreceptor medium can be prevented, and since the developer does not stick to the magnetic fluid, a decrease in a cleaning efficiency can be prevented.
Claims28
A photoreceptor medium cleaning device eliminating a remaining developer from an outer surface of a photoreceptor medium after a developed image of a developer is transferred from the photoreceptor medium to a transfer unit in an electrophotographic image forming apparatus, the photoreceptor medium cleaning device comprising:
- a magnet which is disposed in a lengthwise direction of the photoreceptor medium and is separated from the outer surface of the photoreceptor medium;
- and
- a magnetic fluid which fills a space between the magnet and the outer surface of the photoreceptor medium and contacts the outer surface of the photoreceptor medium.
A photoreceptor medium cleaning device eliminating a remaining developer from an outer surface of a photoreceptor medium after a developed image of a developer is transferred from the photoreceptor to a transfer unit in an electrophotographic image forming apparatus, the photoreceptor medium cleaning device comprising:
- a plurality of magnets each of which is installed in a lengthwise direction of the photoreceptor medium and is separated from the outer surface of the photoreceptor medium and to which magnetic fluids filling spaces between the outer surface of the photoreceptor and the magnets are attached.
A method of cleaning a photoreceptor medium in an image forming apparatus, the method comprising:
- preparing a magnet, to which a magnetic fluid contacting an outer surface of the photoreceptor medium is attached, in a lengthwise direction of the photoreceptor medium;
- and
- eliminating a remaining developer remaining on the outer surface of the photoreceptor using the magnetic fluid while the photoreceptor medium is rotated.
A photoreceptor medium cleaning device eliminating a remaining developer from an outer surface of a photoreceptor medium in an electrophotographic image forming apparatus, comprising:
- a magnet disposed to be spaced-apart from the outer surface of the photoreceptor medium;
- and
- a magnetic fluid disposed in a space between the magnet and the outer surface of the photoreceptor medium to eliminate the remaining developer from the outer surface of the photoreceptor medium.
Dependencies are inferred from the claim text.