Electrophotographic printer

Details Electrophotographic printer Electrophotographic printer

1998-06-16

1999-05-18

Lee, S.

Electrophotography

Image formation

Development

399296, G03G15/11;15/16

Patent

active

059059290

ABSTRACT:
An electrophotographic printer including: a photosensitive belt moving along a circular path and supported by a plurality of rollers; a main corona device for increasing an electrical charge potential on a surface of the photosensitive belt to a predetermined level for development; first, second, third and fourth laser scanning units for forming an electrostatic latent image on the photosensitive belt by color; first, second, third and fourth developing units for individually developing the electrostatic latent image using first, second, third and fourth developing solutions of different colors; a drying roller pressing the photosensitive belt for removing carrier from the developing solutions developed on the photosensitive belt, the drying roller being frictionally charged positively through contact with the photosensitive belt; an eraser for removing an electrostatic charge remaining on the photosensitive belt after development to uniformly electrify the surface of the photosensitive belt with exposing charge potential; and a potential-increasing electrifying unit for increasing the electrical charge potential on the surface of the photosensitive belt, which was lowered during previous developing, to a level for performing further developing using a different development solution.

REFERENCES:
patent: 4461561 (1984-07-01), Plumadore
patent: 5815779 (1998-09-01), Abramsohn

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