Measuring toner concentration

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage

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118646, 355 3R, G01R 2912

Patent

active

039991199

ABSTRACT:
Toner concentration of an electrostatic developer is measured by disposing the developer between two electrodes and agitating the developer to produce electronic noise as a result of triboelectrification and measuring and determining from the generated noise the concentration of the developer.

REFERENCES:
patent: 3376853 (1968-04-01), Weiler et al.
patent: 3544889 (1970-12-01), Alauzet et al.
patent: 3707134 (1972-12-01), Gawron
patent: 3893408 (1975-07-01), Lamel
Procedure For Making Triboelectric Measurements, E. C. Giaimo, Jr., RCA Engineer-Engineering & Research Notes, June-July 1971, V17, No. 1, pp. 102-103.

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