Developer housing

Details Developer housing Developer housing

1977-05-31

1978-08-22

Stein, Mervin

Coating apparatus

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

With electromagnetic and/or electrostatic removal of...

118653, G03G 1508

Patent

active

041081129

ABSTRACT:
An improvement in development apparatus for developing a latent image with magnetic toner having a development zone defined at least in part by a sloping wall member along which magnetic toner migrates under the influence of gravity, residing in providing a flux channeling member affixed to the sloping wall member and within the development zone. Magnetic flux emanating from latent magnetic images passing through the development zone are channeled by the magnetic flux member and in cooperation with the magnetic toner forms a magnetic seal which prevents the flow of toner from the development zone. The present invention obviates the need to utilize a physical barrier which can cause damage to the surface of imaging members.

REFERENCES:
patent: 3685488 (1972-08-01), Stover
patent: 3717122 (1973-02-01), Hudson
patent: 3809012 (1974-05-01), Delvecchio
patent: 3991712 (1976-11-01), Genthe et al.
patent: 4007707 (1977-02-01), Buchan et al.
patent: 4041903 (1977-08-01), Katakwa et al.
Xerox Disclosure Journal, Lynch et al., "Xerographic Developer Flow Regulating Valve", vol. 1, No. 1 (Jan. 1976) pp. 59-60.

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