Electrographic development station with improved developer mixer

Details Electrographic development station with improved developer mixer Electrographic development station with improved developer mixer

1985-12-11

1987-01-06

Pianalto, Bernard D.

Coating apparatus

With means to apply electrical and/or radiant energy to work...

With electromagnetic and/or electrostatic removal of...

G03G 1509

Patent

active

046338071

ABSTRACT:
A development station applies developer material to a latent image on a photoconductor of an electrographic apparatus. An applicator in the station receives developer material from a sump and provides it to the latent image, and excess developer material from the applicator travels along a skive and is returned to the sump. A developer mixer in the sump includes a plurality of blades which are driven about an axis to mix the developer material and supply such material to the applicator. One of the mixer blades is longer than the other blades and strikes the skive during rotation of the mixer to flex the skive and thus facilitates movement of any developer material on the skive toward the sump. The longer blade of the mixer also engages an arcuate surface of the sump during rotation of the blade to wipe developer material from that surface, and removes excess developer from part of the applicator.

REFERENCES:
patent: 3640248 (1972-02-01), Nielander
patent: 4481903 (1984-11-01), Haberhauer

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