Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Radiation-sensitive composition or product
Patent
1989-10-11
1991-03-19
Goodrow, John
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Radiation-sensitive composition or product
430126, G03G 1314
Patent
active
050010301
ABSTRACT:
A method and apparatus for transferring a powder image, consisting of electrostatically charged developing powder, from an image forming medium to an image receiving medium by bringing the image forming medium with the powder image thereon into contact with the image receiving medium, which is provided with a resiliently deformable surface layer. During contact a pressure is exerted between said image forming medium and the image receiving medium with the powder image therebetween, which transfer pressure is sufficient to transfer the powder image to the image receiving medium. In the contact zone an electric field is applied across the image forming medium and the image receiving medium in such direction that the electrostatically charged developing powder is subjected to a force towards the image forming medium.
REFERENCES:
patent: 3627523 (1971-12-01), Sheltto
patent: 3854974 (1974-12-01), Sato et al.
patent: 4746589 (1988-05-01), Haneda et al.
Goodrow John
Oce'-Nederland, B.V.
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