G - Physics – 03 – G
Patent
G - Physics
03
G
32/12, 314/37
G03G 13/02 (2006.01) G03G 15/02 (2006.01) G03G 15/06 (2006.01) G03G 15/08 (2006.01)
Patent
CA 1186012
ABSTRACT This invention is directed to a unique development system, apparatus and process for charging insulating toner particles, the apparatus comprising in operative relationship a means for charging insulating toner particles and a means for transporting insulating toner particles, said means for charging, and said means for transporting biased to a predetermined potential; and the process in one embodiment comprising (1) providing a means for charging insulating toner particles, which means contains thereon a triboelectrically active coating, (2) providing a means for transporting toner particles, (3) depositing weakly charged toner particles on the transporting means and (4) contacting the weakly charged toner particles with the triboelectrically active coating in a charging zone situated between the means for charging and the means for transporting, whereat the charges on the toner particles are amplified to a positive or negative polarity. In one specific embodiment, the present invention is directed to an apparatus for simul- taneously metering and charging non-magnetic insulating toner particles, which comprises in operative relationship a metering/charging roll means containing thereon a triboelectrically active coating, a transporting means, a drive roll means, an idler roll means, said transporting means forming a path of movement around said drive roll means and said idler roll means, a toner supply reservoir means, containing therein weakly charged insulating toner particles possessing about an equal number of positive and negative charges thereon, a voltage source means for the metering/charging roll means, a voltage source means for the drive roll means, and the transporting means, a tensioning means, and an imaging member means said metering/charging roll means moving in a direction opposite to the direction of movement of the transport means. The apparatus and process of the present invention are useful, for example, in electrostatographic imaging devices comprised of a charging means, an imaging means, a development means, a fixing means, and a fusing means, the improvement residing in the development means which is comprised of an apparatus for charging toner particles comprised in operative relationship of a means for charging insulating toner particles, and a means fortransporting insulating toner particles, said means for charging, and said means for transporting, biased to a predetermined potential.
403197
Hays Dan A.
Wayman William H.
Gowling Lafleur Henderson Llp
Xerox Corporation
LandOfFree
Apparatus, process for charging toner particles does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus, process for charging toner particles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus, process for charging toner particles will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1218143