Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1982-12-09
1985-02-12
Martin, Roland E.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
430122, 118657, 118658, G03G 1309
Patent
active
044991690
ABSTRACT:
The invention is directed to a developing method for electrophotography in which an insulating magnetic toner contacts an electrostatic image carrier to develop an electrostatic latent image. A magnetic bias is applied to restrain movement of the magnetic toner toward the image carrier and an alternating electric field is applied to the toner, all subject to the condition V/d.gtoreq.0.1.nu. in which V represents the effective voltage impressed upon the toner, d represents the clearance in millimeters between the image carrier and a developing sleeve, and .nu. represents the frequency in kilohertz of the alternating electric field.
REFERENCES:
patent: 4299900 (1981-11-01), Mitsuhashi et al.
patent: 4336318 (1982-06-01), Fukumoto et al.
patent: 4376813 (1983-03-01), Yuge et al.
patent: 4385829 (1983-05-01), Nakahata et al.
Whittaker, "A Magnetic Brush Developer Roll Employing a Sinusoidal Magnetic Field", Xerox Discl. Jour., vol. 1, No. 2, Feb. 1976, p. 39.
Haneda Satoshi
Itaya Masahiko
Tomono Makoto
Bierman Jordan B.
Konishiroku Photo Industry Co,., Ltd.
Martin Roland E.
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