Development system using electrically field dependent developer

Details Development system using electrically field dependent developer Development system using electrically field dependent developer

1984-02-01

1986-01-21

Grimley, A. T.

Photocopying

Including fiber optics

355 14D, 118658, G03G 1509

Patent

active

045654387

ABSTRACT:
An apparatus in which an image region recorded on a photoconductive surface is developed with a developer material comprising at least carrier granules and toner particles. The developer material has the resistivity thereof varying continuously as a function of the electrical field applied thereto. A transport moves the developer material closely adjacent to the photoconductive surface. An alternating electrical field is generated between the transport and the photoconductive surface. The alternating electrical field has an amplitude sufficient to change the resistivity of the developer material to a more conductive state.

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patent: 4267797 (1981-05-01), Huggins
patent: 4279942 (1981-07-01), Swapceinski
patent: 4343548 (1982-08-01), Bares et al.
patent: 4385823 (1983-05-01), Kasper et al.
patent: 4391891 (1983-07-01), Tamura et al.
patent: 4466732 (1984-08-01), Folkins

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