Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1994-11-21
2000-08-08
Rodee, Christopher D.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
430125, G03G 1509
Patent
active
061000027
ABSTRACT:
A method of forming an image includes the steps of forming an electrostatic latent image on an organic photoconductive drum, applying a developer containing toner particles to a sleeve in which a permanent magnet member is disposed, developing the electrostatic latent image by relative rotation of the sleeve to the permanent magnet member such that a magnetic brush is formed on the sleeve, the magnetic brush brushing the surface of the photoconductive drum to form a toner image, transferring the toner image to a transfer means, fixing the transferred image, and cleaning the remaining toner particles from the image carrier with a fur brush. The developer contains toner particles comprising at least one binder resin and a colorant, and from 0.1 to 3 parts by weight per 100 parts by weight of the toner particles of finely powdered cleaning assistant is disposed on the surface of the toner particles. The toner particles have an average size of 2 to 9 .mu.m and are produced by polymerization, and the cleaning assistant is at least one oxide of a rare earth element having an average particle size of 0.01 to 5.0 .mu.m.
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Hitachi Metals Ltd.
Rodee Christopher D.
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