Apparatus and method for transporting powder to an image...

Details Apparatus and method for transporting powder to an image... Apparatus and method for transporting powder to an image...

2007-02-28

2009-08-18

Brase, Sandra L (Department: 2852)

Electrophotography

Image formation

Development

C399S254000

Reexamination Certificate

active

07577383

ABSTRACT:
An apparatus and method for dispensing toner in an electrostatographic printer includes an apparatus for transporting powder into a developer station containing at least powder and magnetic carrier including a conveyance housing divided into a mixing space adjacent to a second separate transport space, the second transport space located adjacent to a development roller, a powder conveying device located in the conveyance housing comprising two or more augers and a conveyance controller for controlling the powder conveying device, including the one or more augers, such that the auger preferentially mixes in the first mixing space and transports in the second transport space as the powder conveying device conveys the powder toward the imaging device of a print engine.

REFERENCES:
patent: 5025287 (1991-06-01), Hilbert
patent: 5260159 (1993-11-01), Ohtani et al.
patent: 5570170 (1996-10-01), Muranyi et al.
patent: 5655193 (1997-08-01), Fujishiro et al.
patent: 6421516 (2002-07-01), Kinoshita et al.
patent: 6480689 (2002-11-01), Jacobs
patent: 7228093 (2007-06-01), Sakai et al.

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