Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – To produce multiple image on medium or plural radiant energy...
Patent
1988-06-02
1990-01-02
Grimley, A. T.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
To produce multiple image on medium or plural radiant energy...
355218, 355245, 355268, 430100, 430126, G03G 15046
Patent
active
048912875
ABSTRACT:
An image editing method utilizing an electrophotographic process, which method includes a first charging step of charging a photosensitive medium; a step of projecting an image onto the charged photosensitive medium to form an electrostatic latent image; a first developing step of developing the electrostatic latent image into a first powder image by the use of a first toner material having the same polarity as the charged polarity; a first transferring step of transferring the powder image onto a copying paper; a second charging step of again charging the photosensitive medium to a polarity the same as that of the charge established during the first charging step; a step of radiating rays of light to the charged photosensitive medium to remove the electrostatic charge at a specificed area of the photosensitive medium; a second developing step of developing the specified area of the photosensitive medium by the use of a second toner material different in color from the first toner material to form a second powder image; and a second transferring step of transferring the second powder image onto said copying paper so as to cover the first powder image which has been transferred onto the copying paper.
REFERENCES:
patent: 3808026 (1974-04-01), Sato et al.
patent: 3963341 (1976-06-01), Tully
patent: 4579443 (1986-04-01), Abuyama et al.
patent: 4582417 (1986-04-01), Yagasaki et al.
patent: 4720750 (1988-01-01), Watanabe
Okamoto Hiroshi
Tabuchi Kenji
Takebe Kaoru
Toyoshi Naoki
Yokoyama Tomoaki
Beatty Robert
Grimley A. T.
Minolta Camera Kabushiki Kaisha
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