Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1979-12-17
1981-08-18
Martin, Jr., Roland E.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
430107, 430108, 118657, G03G 1308, G03G 1309
Patent
active
042847028
ABSTRACT:
An electrographic developing method comprising forming a magnetic brush of a developer composed of at least two components of insulating toner particles and insulating carrier granules, and brushing a surface bearing an electrostatic latent image with the brush to render the latent image visible, the carrier granules having the properties of (1) triboelectrifying the toner particles to a polarity suitable for developing the latent image by coming into frictional contact with the toner particles, (2) being magnetic, (3) having a resistivity of at least 10.sup.12 ohm-cm, and (4) being 5 to 40 .mu.m in size.
REFERENCES:
patent: 3607750 (1971-09-01), Raney et al.
patent: 3895125 (1975-07-01), Tsuchiya et al.
patent: 3906121 (1975-09-01), Fraser et al.
patent: 3947370 (1976-03-01), Miller
patent: 4154520 (1979-05-01), Nishikawa
patent: 4165393 (1979-08-01), Suzuki et al.
Mizunoe Hiroaki
Oka Tateki
Tabuchi Kenji
Tanaka Susumu
Wada Kenichi
Martin Jr. Roland E.
Minolta Camera Kabushiki Kaisha
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