Recorders – Electric recording – Electrochemical
Patent
1991-02-28
1992-09-15
Miller, Jr., George H.
Recorders
Electric recording
Electrochemical
346155, G01D 1506
Patent
active
051482045
ABSTRACT:
Apertureless Direct Electronic Printing (ADEPT) is effected through imagewise toner transfer across a gap by biasing individual electrodes selectively using a localized electrostatic field varying in time in such a way that the approximate impulse relation 1:2 is maintained, between the first, forward directing pulse and the subsequent reverse pulse (or a sequence of alternating pulses). In this improvement, no apertures between the donor and the receiver are utilized, yet imagewise resolution is preserved. In other words undesirable defocusing is preclude. The electrodes, in one embodiment, are implemented as biased discs embedded in a dielectric substrate material.
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Miller Jr. George H.
Xerox Corporation
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