Process control of electrostatographic machine by adjusting char

Details Process control of electrostatographic machine by adjusting char Process control of electrostatographic machine by adjusting char

1989-06-15

1991-09-10

Braun, Fred L.

Photocopying

Contact printing

Light boxes

355246, G03G 2100, G03G 1508

Patent

active

050478028

ABSTRACT:
Control over the electrostatographic process is provided by adjusting the toner charge-to-mass ratio in response to changes in toner contrast. An electrostatographic reproduction machine produces a signal having a value characteristic of the toned density of the developed image. Using the signal, the charge-to-mass ratio of the toner is adjusted. In a preferred embodiment, the signal is produced by comparing the toned density of the developed image to a reference value, and charge-to-mass is adjusted by directing an ion cloud over the toner particles.

REFERENCES:
patent: 4026643 (1977-05-01), Bergman
patent: 4647184 (1987-03-01), Russell et al.
patent: 4745282 (1988-05-01), Tagawa et al.
patent: 4786924 (1988-11-01), Folkins
patent: 4796064 (1989-01-01), Torrey

Affiliated with

Also associated with

Rating

Process control of electrostatographic machine by adjusting char does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process control of electrostatographic machine by adjusting char, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process control of electrostatographic machine by adjusting char will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-543305