Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – To produce color reproduction
Patent
1999-10-21
2000-05-09
Martin, Roland
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
To produce color reproduction
430106, 430110, 430111, G03G 909, G03G 1301
Patent
active
060602015
ABSTRACT:
An image forming method including the steps of providing a black toner, a yellow toner, a magenta toner and a cyan toner, wherein each toner includes a binder resin, a colorant and an external additive, wherein the external additive contains a silica, and wherein the content by weight of the external additive in the black toner is greater than any one of those in the yellow, magenta and cyan toner; developing an electrostatic latent image formed on an image bearing member with one of the toners to form a toner image; repeating the developing operation mentioned above using the other toners; transferring the toner images to a receiving material; and heating the toner images using a non-contact fixing device to fix the toner images.
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Aoki Mitsuo
Kinoshita Nobutaka
Oyamaguchi Akira
Martin Roland
Ricoh & Company, Ltd.
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