G - Physics – 03 – G
Patent
G - Physics
03
G
32/12.14, 117/3.
G03G 13/10 (2006.01) G03G 15/06 (2006.01) G03G 15/10 (2006.01)
Patent
CA 1057138
ABSTRACT OF THE DISCLOSURE A method of and apparatus for toning an exposed electrophotographic member in a camera or other electrostatic imaging device which uses liquid toner comprising toner particles suspended in dispersant. The method contemplates running the liquid toner into a chamber containing the photoconductive surface of the electrophotographic member and a metal plate parallel with one another and spaced apart as two boundaries of the chamber. During the toning operation, a low d.c. bias potential is applied across the chamber between the photoconductive surfaces and the plate of a polarity such as to repel toner particles from the photoconductive surface and drive them from the surface toward the plate, but the voltage of the bias is low enough not to affect increments which have substantial charge on them. The result is that incre- ments with very little charge are left with practically no adhering particles. When the toning is completed, the bias is substantially increased to cause attraction by the plate so that particles floating in the liquid toner which have not been adhered to the surface tend to move toward the plate. Since the majority of particles have already adhered to the latent image of the photo- conductive surface, the toner is cleared of floating particles and can be run out of the chamber leaving the toned image clean of particles in the untoned areas. The invention contemplates apparatus which enables the method described to be carried out. - 1 -
239400
Kuehnle Manfred R.
Talmage Peter G.
LandOfFree
Method of and apparatus for toning electrophotographic film does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of and apparatus for toning electrophotographic film, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of and apparatus for toning electrophotographic film will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-799122