Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – To produce color reproduction
Patent
1993-06-30
1994-09-06
McCamish, Marion E.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
To produce color reproduction
430 45, 430 46, 358500, G03G 1316
Patent
active
053447328
ABSTRACT:
A multi-color electrophotographic image formation method of a digital type for forming multi-color images is disclosed, in which latent electrostatic images corresponding to yellow, magenta, cyan and black images separated from an original image are developed with a yellow developer, a magenta developer, a cyan developer and a black developer, respectively to form visible yellow, magenta, cyan and black images, and the visible yellow, magenta, cyan and black images are fixed to an image receiving member, with the reflection image density (ID.sub.ref) and the transmission image density (ID.sub.tr) of the fixed black images formed by the black developer being in the relationship of ID.sub.ref .gtoreq.1.8.times.ID.sub.tr when the deposition of the black developer is in the range of 1.0 mg/cm.sup.2 or less.
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Asahina Yasuo
Chiba Shunichi
Makita Kayo
Nakayama Nobuhiro
Okamoto Yosihisa
Chapman Mark A.
McCamish Marion E.
Ricoh & Company, Ltd.
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