Electrographic development method, apparatus and system

Details Electrographic development method, apparatus and system Electrographic development method, apparatus and system

1984-06-18

1986-07-29

Braun, Fred L.

Photocopying

Including fiber optics

118657, 118658, G03G 1509

Patent

active

046028633

ABSTRACT:
Electrographic development is obtained by predeterminedly rotating an alternating pole core of a magnetic brush applicator, within a surrounding applicator shell, to supply developer, of the kind including small particle, hard-magnetic carrier and electrically insulative toner, to an electrostatic imaging member which moves past a development station with predetermined linear velocity. The shell can be stationary or rotate at a velocity significantly less than the image member velocity. The core is predeterminedly rotated so that (i) its fields effect a large portion of transport through the development zone and (ii) the developer moves co-currently with the imaging member and at a linear velocity generally equal to the imaging member velocity.

REFERENCES:
patent: 3152924 (1964-10-01), Wanielista et al.
patent: 4081571 (1978-03-01), Nishihama et al.
patent: 4235194 (1980-11-01), Wada et al.
patent: 4292921 (1981-10-01), Kroll et al.
patent: 4334497 (1982-06-01), Oka et al.
patent: 4345014 (1982-08-01), Oka et al.
patent: 4421057 (1983-12-01), Hosono et al.
patent: 4473029 (1984-09-01), Fritz et al.

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