B - Operations – Transporting – 05 – D
Patent
B - Operations, Transporting
05
D
101/41
B05D 1/06 (2006.01) G03G 15/16 (2006.01)
Patent
CA 1107134
ABSTRACT OF THE DISCLOSURE A method is provided for transferring a charged particulate image such as a xerographic image across gaps between electrodes where the electrode spacing is much greater than heretofore employed. Thus, envelopes containing bulky objects such as keys, novelties and the like, can be addressed by xerographically forming a particulate image in the conventional manner and transferring it in accordance with the invention. In accordance with the invention, a charged particulate image is deposited on a non-absorbent dielectric transfer sheet and transferred to an absorbent receiver sheet by placing the transfer sheet and receiver sheet between a pair of electrodes having a potential difference sufficient to transfer the charged particulate image, one of the electrodes being a pointed electrode positioned behind the transfer sheet having an emitting angle of between 0° and about 90° so as to provide high fields at the emitting end of said electrode and the second electrode being a blunt electrode positioned behind the receiver sheet having an emitting angle of between about 90° and 180° so as to provide low fields at the emitting surface of said electrode.
307948
Gowling Lafleur Henderson Llp
Xerox Corporation
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