Triboelectric charge measurement

Details Triboelectric charge measurement Triboelectric charge measurement

1990-02-26

1991-07-23

Grimley, A. T.

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118653, 118688, 355246, 430120, G03G 1506

Patent

active

050347756

ABSTRACT:
An apparatus in which the triboelectric charge of developer material toner adhering to carrier is measured. In the development system, a magnetic roller transports developer material closely adjacent a donor roller. The donor roller is electrically biased relative to the magnetic roller so that toner is developed onto the donor roller. The instantaneous current flow electrically biasing the donor roller is integrated and is indicative of the triboelectric charge to the developer material.

REFERENCES:
patent: 4319544 (1982-03-01), Weber
patent: 4492179 (1985-01-01), Folkins et al.
patent: 4538897 (1985-09-01), Osaka et al.
patent: 4643561 (1987-02-01), Folkins
patent: 4686934 (1987-08-01), Kohyama
patent: 4833500 (1989-05-01), Mochizuki

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