Developing apparatus for preventing deterioration of toner charg

Details Developing apparatus for preventing deterioration of toner charg Developing apparatus for preventing deterioration of toner charg

1999-07-06

2000-11-21

Royer, William J.

Electrophotography

Image formation

Development

347 55, G03G 1508

Patent

active

061514756

ABSTRACT:
A developing apparatus deterioration of toner charge quantity on double rollers and prevents filming of the toner. The developing apparatus includes a first roller for conveying a developer contained in a container, a blade for charging the developer on the first roller to a predetermined polarity and for restricting the conveyance quantity of the developer, and a second roller opposed to the first roller. The second roller receives the developer from the first roller to hold it on an outer surface thereof. The apparatus further includes a developer recovering device for recovering the developer from the second roller at a non-developing time.

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