Electrophotographic developing apparatus having image quality improving devices
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United States of America Patent
Stats
-
Oct 5, 1993
Grant Date -
N/A
app pub date -
Jul 17, 1991
filing date -
Jul 20, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Electrophotographic developing apparatus including a carrier of latent image formed on a photoconductive layer superposed to a conductive layer, a carrier of developing material juxtaposed to the latent image carrier at a developing zone for transferring the developing material on the photoconductive layer in a configuration corresponding to the latent image and a transfer station in which a printing support is brought in contact with the photoconductive layer for transferring the developing material from the photoconductive layer to the printing support, the distribution of the developing material on the photoconductive layer being enhanced by subjecting the photoconductive layer, in a zone extending between the developing zone and the transfer station, to an alternating electrical field which enables migration of developing material particles from the outside of the latent image to the inside of the latent image.
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Cited Art Landscape
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