Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Electrostatic image transfer
Patent
1997-05-20
1999-11-09
Berman, Susan W.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Electrostatic image transfer
430 61, 430 84, 430 57, G03G 1502, G03G 1504, G03G 1506
Patent
active
059811226
ABSTRACT:
Electric discharge between a photosensitive member and a charge retaining medium is ON/OFF controlled by changing the gas pressure between these two members, so that it is possible to effect image recording in a state where a DC voltage is applied. An electric charge which is opposite in polarity to an image forming charge is uniformly formed on the charge retaining medium in advance of the image exposure, and thereafter image exposure is carried out, thereby reducing the background potential at the unexposed region and increasing the contrast potential of the electrostatic latent image formed on the charge retaining medium. In addition, it is possible to increase the voltage distribution to the photosensitive member. As a result, it is possible to improve the photosensitivity of image exposure.
REFERENCES:
patent: 2833648 (1958-05-01), Walkup
patent: 3653890 (1972-04-01), Seimiya et al.
patent: 3653891 (1972-04-01), Thourson et al.
patent: 4207100 (1980-06-01), Kadokura et al.
R.M. Schaffert, Electrophotography, John Wiley, NY, 1975, pp. 512-533, 542-547.
Ichimura Kohji
Obata Hiroyuki
Berman Susan W.
Dai Nippon Printing Co. Ltd.
LandOfFree
Image recording method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Image recording method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image recording method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1453474