Process and apparatus for rejuvenating electrostatic copy machin

Details Process and apparatus for rejuvenating electrostatic copy machin Process and apparatus for rejuvenating electrostatic copy machin

1983-08-30

1985-08-27

Welsh, John D.

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Process of making developer composition

361143, 361153, 427130, 427444, 148103, 148108, G03G 908, G01R 3312, C22C 1900

Patent

active

045378509

ABSTRACT:
A method and apparatus for rejuvenating magnetic toner used in certain electrostatic copying machines. The used toner is placed in a container which is inserted in an air coil which is energized to produce a magnetic field which remagnetizes the toner. The coil is provided by mounting a hollow non-magnetic tube in a case and winding this tube with wire. A timing circuit energized by a momentary switch determines the length of time a magnetic field is applied to the toner being recycled.

REFERENCES:
patent: 3523836 (1970-08-01), Buschow et al.
patent: 3535621 (1970-10-01), Ptomey et al.
patent: 4080054 (1978-03-01), Watanabe
patent: 4108658 (1978-08-01), Koeleman et al.
patent: 4176078 (1979-11-01), Lu

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