Magnetic curtain seal for development apparatus

Details Magnetic curtain seal for development apparatus Magnetic curtain seal for development apparatus

1976-07-12

1978-07-18

Moses, Richard L.

Photocopying

Including fiber optics

118653, G03G 1500

Patent

active

041012119

ABSTRACT:
For use in an electrographic development apparatus having a development station and a sump wherein at least one auger moves developer between the sump and the development station, a magnetic curtain seal is disposed adjacent the auger proximate to the auger passageway (between sump and development station) and attracts sufficient developer to block the auger passageway and thereby prevent toner dust from escaping from the sump into the development station.

REFERENCES:
patent: 3764208 (1973-10-01), Takahashi et al.
patent: 3791730 (1974-02-01), Sullivan
patent: 3906899 (1975-09-01), Harpavat
patent: 3981272 (1976-09-01), Smith et al.
patent: 4007707 (1977-02-01), Buchan et al.

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