Filtering system for removing toner from an air stream in a deve

Details Filtering system for removing toner from an air stream in a deve Filtering system for removing toner from an air stream in a deve

1998-11-20

2000-04-25

Royer, William

Electrophotography

Internal machine environment

Particle or contaminant control

399 93, G03G 2120

Patent

active

060553936

ABSTRACT:
An electrophotographic printing machine of the type in which an electrostatic latent image recorded on a charge retentive surface is developed with toner particles to form a visible image thereof, including; a housing having a supply of toner and developer therein; a donor member for transporting toner from said housing to the development zone; a means for conveying toner to the donor member; means for generating a negative air stream for carrying toner therein; and a filter for removing the toner from the negative air stream, being positioned so that developer impinges on said filter to dislodge material collected in said filter.

REFERENCES:
patent: 4154521 (1979-05-01), Tanaka
patent: 4583112 (1986-04-01), Morano et al.
patent: 4868600 (1989-09-01), Hays et al.
patent: 5550062 (1996-08-01), Wohltjen et al.

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