Imaging process utilizing classified high surface area carrier m

Details Imaging process utilizing classified high surface area carrier m Imaging process utilizing classified high surface area carrier m

1974-05-30

1978-11-21

Smith, Ronald H.

Gas separation: apparatus

Electric field separation apparatus

252 621P, 427 18, 427 20, 428407, G03G 910, G03G 1309

Patent

active

041264541

ABSTRACT:
An electrostatographic imaging process comprising the steps of providing an electrostatoraphic imaging member having a recording surface, forming an electrostatic latent image on said recording surface, and contacting said electrostatic latent image with a developer mixture comprising finely divided toner particles electrostatically clinging to the surface of classified high surface area carrier materials having a specific surface area of at least about 150 cm.sup.2 /gram, a particle size volume distribution geometric standard deviation of less than about 1.3, and a particle size distribution wherein the carrier particles have an average particle diameter of less than about 100 microns, whereby at least a portion of said finely divided toner particles are attracted to and deposited on said recording surface in conformance with said electrostatic latent image.

REFERENCES:
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patent: 3165420 (1965-01-01), Tomanek et al.
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patent: 3554778 (1971-01-01), Granzow
patent: 3650797 (1972-03-01), Tomanek
patent: 3811880 (1974-05-01), Browning
patent: 3839029 (1974-10-01), Berg et al.
patent: 3895125 (1975-07-01), Tsuchiya et al.

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