Photocopying – Including fiber optics
Patent
1976-10-27
1978-08-08
Pellinen, A. D.
Photocopying
Including fiber optics
323 21, G03G 1502
Patent
active
041053214
ABSTRACT:
Apparatus for controlling the charge level on the photoconductive surface of a reproduction machine to enhance imaging. A corona generator is used to initially charge the photoconductive surface following which the charge is examined and compared with a preselected reference charge. Where an overcharge is found, a lamp, the illumination intensity of which is matched to the degree of overcharge, is actuated to reduce the charge level on the photoconductive surface to substantially the same as the reference charge. The discharge lamp may be combined with the corona generator or be provided separate therefrom. An alternate embodiment has a lamp providing a fixed illumination output is provided with a liquid crystal interposed between the photoconductive surface and the lamp to control the degree of illumination to which the photoconductive surface is subjected.
REFERENCES:
patent: 3604925 (1971-09-01), Snelling et al.
patent: 3654893 (1972-04-01), Piper et al.
patent: 3789223 (1974-01-01), Sato
patent: 3843885 (1974-10-01), Sato et al.
patent: 3944354 (1976-03-01), Benwood
patent: 4008954 (1977-02-01), Ogawa et al.
patent: 4026643 (1977-05-01), Bergman
Pellinen A. D.
Xerox Corporation
LandOfFree
Illuminated charge control system for xerographic machines does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Illuminated charge control system for xerographic machines, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Illuminated charge control system for xerographic machines will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-915901