Developing device having a developer mixing chamber for use in e

Details Developing device having a developer mixing chamber for use in e Developing device having a developer mixing chamber for use in e

1993-11-19

1995-09-26

Pendegrass, Joan H.

Photocopying

Contact printing

Light boxes

118657, G03G 1508

Patent

active

054538203

ABSTRACT:
A developing device for use in an electrophotographic apparatus includes a casing for storing a developer including a toner and a carrier therein; a photosensitive drum having a surface on which an electrostatic latent image is formed; a carrying magnetic roll for drawing up the developer stored in said casing; a developing magnetic roll for forming a magnetic brush out of the developer fed by the carrying magnetic roll to develop the electrostatic latent image; and a developer mixing chamber including an impeller interposed between the carrying and developing magnetic rolls, for mixing the toner and carrier contained in the developer with each other, which is drawn up by the carrying magnetic roll, to supply the mixed developer to the developing magnetic roll.

REFERENCES:
patent: 3654902 (1972-04-01), Hakanson
patent: 4050413 (1977-09-01), Parker
patent: 4068623 (1978-01-01), O'Toole et al.
patent: 4690096 (1987-09-01), Hacknauer et al.

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