Method and apparatus for testing xerographic developer mix

Details Method and apparatus for testing xerographic developer mix Method and apparatus for testing xerographic developer mix

1981-10-09

1983-08-09

Gill, James J.

Measuring and testing

Miscellaneous

118689, 324452, G01N 2700, G01N 3326

Patent

active

043971849

ABSTRACT:
Xerographic toner and carrier are analyzed by placing a sample thereof in a closed container, the container having upper and lower nonmagnetic and electrically conductive flat plates separated by nonmagnetic and electrically nonconductive walls, and subjecting the container to a vibratory force, while a voltage simulating an electrostatic image is applied to one plate, and while the charge associate with the other plate is monitored.

REFERENCES:
patent: 3960738 (1975-06-01), O'Brien et al.
patent: 3970571 (1976-07-01), Olson et al.
patent: 4010366 (1977-03-01), Neukermans et al.
patent: 4195260 (1980-03-01), Sakamoto et al.
patent: 4242434 (1980-12-01), Hirakura et al.
patent: 4254203 (1981-03-01), Oka et al.
patent: 4331184 (1982-05-01), Terashima et al.
IBM Technical Disclosure Bulletin, vol. 22, No. 1, Jun. 1979, "Toner/Carrier Charge Measuring Apparatus and Method," by R. E. Marrs, pp. 17-20.
IBM Technical Disclosure Bulletin, vol. 23, No. 6, Nov. 1980, "Break-In of Toner/Carrier Mix," by S. C. Crossan and J. A. Thompson, pp. 2230-2231.

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