Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1997-07-15
1998-11-03
Goodrow, John
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
430110, G03G 914
Patent
active
058306161
ABSTRACT:
The present invention relates to a developing agent used for electrophotography, electrostatic recording, electrostatic printing, magnetic recording and the like, and particularly a developing agent with excellent image properties, fixing properties and storability, which is magnetic latent image developing toner.
The magnetic latent image developing toner of the invention contains a permanent antistatic agent which includes quaternary ammonium base-containing copolymer, and conductive powder, and the electrical resistance of the toner is in the range of 10.sup.8 -10.sup.14 .OMEGA..multidot. cm. The magnetic latent image developing toner also contains external additives or a charge control agent, to keep the frictional electrification of the toner to between -5 and 5 .mu.C/g.
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Fujino Atsushi
Yaguchi Shigenori
Goodrow John
Iwatsu Electric Co., Inc.
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