Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1993-09-10
1995-07-25
Martin, Roland
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
430903, 355251, G03G 9083, G03G 1509
Patent
active
054361028
ABSTRACT:
An apparatus develops an electrostatic latent image formed on an image carrier by attaching a developing agent containing toners, thereby converting the latent image into a toner image, transfers the toner image on a sheet, and fixes the toner image, thereby recording an image. The developing agent consists of a first magnetic toner containing less than 45 wt. % of a magnetic powder and having a comparatively low magnetism and low charge amount, and a second magnetic toner which has almost the same particle diameter as that of the first magnetic toner and charge characteristics of the same polarity as that of the first magnetic toner, contains 45 wt. % or more of a magnetic powder, and has a comparatively high magnetism and low charge amount. The first and second magnetic toners are mixed with a formulating proportion of 20 to 99 parts by weight and 1 to 80 parts by weight, respectively. The apparatus includes a convey mechanism for conveying the developing agent to the image carrier with a magnetism.
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Kubo Shun-ichi
Shionoya Masao
Martin Roland
Olympus Optical Co,. Ltd.
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