Electrophotographic apparatus having a film for separating printed media from a photoconductive drum
AssigneeSamsung Electronics Co., Ltd.
InventorSang-Yob Shin
Life of this patent
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Abstract
An electrophotographic development system preventive of a rolling of paper on a photosensitive drum includes a charging roller for charging the surface of the photosensitive drum with high voltage by a rotation with the photosensitive drum, an exposure unit for producing an electrostatic latent image on the charged part of the photosensitive drum, a developing roller having a thin and uniform toner layer through which the latent image on the photosensitive drum passes to be developed into a visible image, and a transfer roller for transferring the image on a paper, whereby to compulsorily separate the paper rolling up the photosensitive drum.
Claims17
An electrophotographic development system comprising:
- a charging roller for charging the surface of a photosensitive drum with high voltage;
- an exposure unit for producing an electrostatic latent image on said surface of the photosensitive drum;
- a developing roller having a thin and uniform toner layer, said developing roller transferring said toner onto the photosensitive drum to develop a visible image;
- a transfer roller for transferring said visible image onto a paper;
- and
- a paper separating means located between said transfer roller and said charging roller, said paper separating means comprising an urethane film;
- said urethane film separating said paper from said photosensitive drum when said paper has become attached to said photosensitive drum.
An electrophotographic development system, comprising:
- a paper conveyance path;
- a photosensitive drum having a surface;
- a charging roller for charging the surface of said photosensitive drum with a high voltage;
- an exposure unit for producing an electrostatic latent image on the charged surface of said photosensitive drum;
- a developing roller having a thin and uniform toner layer that is transferred to said photosensitive drum to be developed into a visible image;
- a transfer roller for transferring the visible image onto a paper from said photosensitive drum;
- a paper stripper located between said transfer roller and said charging roller for removing paper that has become attached to said photosensitive drum, said paper stripper comprising an urethane film;
- and
- said urethane film causing said paper to remain on said paper conveyance path.
An image forming apparatus, comprising:
- a recording medium;
- a paper path alone which said recording medium is transported;
- a photoconductive drum for forming an image onto said recording medium;
- and
- an urethane film positioned proximate to said photoconductive drum for separating said recording medium from said photoconductive drum when said recording medium means has become attached to said photoconductive drum.
Dependencies are inferred from the claim text.