Photocopying – Contact printing – Light boxes
Patent
1993-08-12
1994-10-25
Royer, William J.
Photocopying
Contact printing
Light boxes
118657, 355253, G03G 1506
Patent
active
053593995
ABSTRACT:
An apparatus in which an electrostatic latent image recorded on a photoconductive member is developed with toner. A donor roll, spaced from the photoconductive member, transports toner to a development zone adjacent the photoconductive member. An electrode member is positioned in the development zone between the photoconductive member and the donor roll. The electrode member is electrically biased to detach toner from the donor roll so as to form a toner powder cloud in the space between the electrode member and the photoconductive member. A unitary magnetic roll is located in the housing to transport developer material to a reload zone where toner particles are attracted from magnetic carrier granules to the donor roll. The parameters are selected to optimize reload and suppress strobe lines.
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Bares Jan
Edmunds Cyril G.
Beck J. E.
Fleischer H.
Royer William J.
Xerox Corporation
Zibelli R.
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