Development apparatus for developing electrostatic latent image

Details Development apparatus for developing electrostatic latent image Development apparatus for developing electrostatic latent image

1997-07-24

1998-11-24

Royer, William J.

Electrophotography

Image formation

Development

399290, G03G 1501, G03G 1508

Patent

active

058420894

ABSTRACT:
The present invention is intended to provide a compact development apparatus using a nonmagnetic one-component toner. The apparatus comprises a toner storage container, a toner supply roller, a toner passage through which supplied toner passes, and an attracting fan for attracting the toner and generating a toner powder stream. The toner is held in the toner storage container. The toner supply roller supplies the toner from a supply port of the storage container. The toner passage is provided with an opening opposite to a photosensitive drum. The toner supplied into the toner passage and frictionally charged is attracted by the attracting fan. The toner travels from the opening to the drum. The toner adheres to an electrostatic latent image on the drum and thus the image is developed. Unused toner is transported into the toner passage and recovered.

REFERENCES:
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patent: 3633544 (1972-01-01), Weiler
patent: 4386577 (1983-06-01), Hosono et al.
patent: 4421057 (1983-12-01), Hosono et al.
patent: 4458627 (1984-07-01), Hosono et al.
patent: 4527884 (1985-07-01), Nusser
patent: 4876573 (1989-10-01), Kamimura

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