Magnet for use in a magnetic brush development apparatus

Details Magnet for use in a magnetic brush development apparatus Magnet for use in a magnetic brush development apparatus

1988-01-21

1989-02-21

Hix, L. T.

Photocopying

Including fiber optics

118657, 118658, G03G 1509, G03G 1508

Patent

active

048069710

ABSTRACT:
A cylindrical magnet for a magnetic brush developer unit used in an electrophotographic printing machine is of U-shaped cross section having a cylindrical outer surface, and a cavity through which extends the rotary axis of the sleeve. The material forming the magnet is a moldable plastic containing a comminuted ferrite. The longitudinal, angularly spaced, poles are produced in the material during the molding operation. The magnetic body is bonded to end support members, and it is self-supporting between them.

REFERENCES:
patent: 4044719 (1977-08-01), Ohmori
patent: 4303331 (1981-12-01), Thompson
patent: 4318607 (1982-03-01), Bonham et al.
patent: 4517719 (1985-05-01), Okumura et al.
patent: 4597661 (1986-07-01), Yamashita
Article: Eliminate Shape Restrictions with Molded Plastic Magnets; Authors: John Theberge et al.; Machine Design Magazine dated 2/10/77.
Article: Magnalox Injection Molded Magnetics; Published by Xolox Corporation of Fort Wayne, Indiana.
Article: Custom Molded Plastic Magnetics; published by Tengam Engineering Inc. of Otsego, Michigan.

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