Electrophotography – Image formation – Development
Patent
1997-01-21
1998-03-17
Grimley, Arthur T.
Electrophotography
Image formation
Development
310232, 310237, 347 55, 399266, 399291, G03G 1506
Patent
active
057298076
ABSTRACT:
A non-interactive or scavengeless development system for use in color imaging. To control the developability of lines and the degree of interaction between the toner and receiver, an AC voltage is applied between a donor roll and two sets of interdigitated electrodes embedded in the surface of the donor roll to enable efficient detachment of toner from the donor to form a toner cloud. An optical switching arrangement effects an electrical connection between a slip ring and one set of interdigitated electrodes. The optical switch uses photoconductor elements, each having a geometry that results in an optical switching device having a larger capacitance and therefore capable of effecting switching at lower current densities.
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Chen Sophia S.
Grimley Arthur T.
Xerox Corporation
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