Auto-bias developing apparatus

Details Auto-bias developing apparatus Auto-bias developing apparatus

1976-03-30

1979-02-13

Pellinen, A. D.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

96 1LY, 118647, G03G 1510

Patent

active

041392990

ABSTRACT:
The process and device are for use in an electrophotographic copying machine using a developing agent of liquid type. A counter-electrode is maintained closely spaced from the peripheral surface of a photosensitive drum bearing an electrostatic latent image thereon and itself electrically floating. The developing solution, which inherently has a substantial conductivity is supplied into the space between the drum surface and the counter-electrode so as to develop the latent image. During the development of latent image, a weak d.c. current flow, is passed between the counter-electrode and the drum through the segment of the developing solution filling the space so that a good relation between potentials on the drum surface and the counter-electrode is obtained to eliminate background smearing. The d.c. current may be controlled to decrease in value as the induced potential on the counter-electrode increases.

REFERENCES:
patent: 3576623 (1971-04-01), Snelling
patent: 3782818 (1974-01-01), Smith
patent: 3892481 (1975-01-01), Schaefer et al.
patent: 3944356 (1976-03-01), Hayne
patent: 3980049 (1976-09-01), Tasumi et al.
patent: 3981267 (1976-09-01), Gardiner et al.

Affiliated with

Also associated with

Rating

Auto-bias developing apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Auto-bias developing apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Auto-bias developing apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-688866