Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – To produce color reproduction
Patent
1994-06-30
1996-01-02
Goodrow, John
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
To produce color reproduction
430 45, 430902, G03G 13045
Patent
active
054807514
ABSTRACT:
Deposition of background toner particles during tri-level image transfer from an imaging member to a final substrate is minimized. A front erase step is used prior to pretransfer corona treatment in order to reduce the background voltage level to substantially the residual voltage level of the photoreceptor imaging member used in the imaging process. When the image is subjected to pretransfer corona positively charged black and color background toner particles become negative and wrong sign black toner becomes more negative. Using negative transfer corona effects transfer of toner forming the black and color images and inhibits transfer of background toner.
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Germain Richard P.
Williams James E.
Goodrow John
Xerox Corporation
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