Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Post imaging process – finishing – or perfecting composition...
Patent
1981-09-21
1983-07-19
Martin, Jr., Roland E.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Post imaging process, finishing, or perfecting composition...
430120, 430122, 355 3DD, 118653, 118656, 118657, 118658, G03G 1308, G03G 1309
Patent
active
043944299
ABSTRACT:
This invention is directed to a process and apparatus for causing the development of electrostatic latent images, the process comprising providing a development zone encompassed by a tensioned deflected flexible imaging member and a transporting member, causing the deflected flexible imaging member to move at a speed of from about 5 cm/sec to about 50 cm/sec, causing the transporting member to move at a speed of from about 6 cm/sec to about 100 cm/sec, said deflected flexible imaging member and said transporting member moving at different speeds, maintaining a distance between the flexible imaging member and the transporting member of from about 0.05 millimeters to about 1.5 millimeters, adding insulating developer particles to the development zone, which particles are comprised of electrically insulating toner particles, and electrically insulating magnetic carrier particles, the flexible imaging member being deflected by the electrically insulating developer particles contained in the development zone, introducing a high electric field in the development zone, wherein the developer particles contained in the development zone are agitated, and the insulating toner particles migrate from one layer of carrier particles to another layer of carrier particles in the development zone, the carrier particles rotating in one direction and subsequently in another direction, wherein toner particles are continuously made available immediately adjacent the deflected flexible imaging member, said process being accomplished in the absence of a magnetic field.
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Martin Jr. Roland E.
Palazzo E. O.
Xerox Corporation
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