Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1992-01-06
1994-07-26
Rosasco, Steve
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
430111, 428403, 428404, G03G 900
Patent
active
053326393
ABSTRACT:
A toner for use in electrophotography in accordance with the present invention comprises toner particles and an external additive that is constituted by a silica fine powder composed of inexpensive silica particles coated with a mixture of homogeneously distributed tin oxide and antimony, and that is attached to the surface of the toner particles. The use of the silica fine powder improves the flowability of the toner whereby images with a uniform density can be obtained. In addition, the toner is stabilized as the above mixture lowers the electric resistance on the surface of the toner particles.
The above external additive may also be composed of aluminum oxide fine powder or cerium oxide fine powder. For instance, with a toner for use in electrophotography that comprises an external additive composed of cerium oxide fine powder, the surface of the photoreceptor is polished though the polishing action of the cerium oxide whereby the formation of a toner film on the photoreceptor can be prevented and clear images can be obtained.
REFERENCES:
patent: 4514485 (1985-04-01), Ushiyama et al.
patent: 4803144 (1989-02-01), Hosoi
patent: 4828951 (1989-05-01), Kaneko et al.
Iwai Shougo
Nakamura Tadashi
Rosasco Steve
Sharp Kabushiki Kaisha
LandOfFree
Toner for use in electrophotography and its manufacturing proces does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Toner for use in electrophotography and its manufacturing proces, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Toner for use in electrophotography and its manufacturing proces will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1052374