Photocopying – Contact printing – Light boxes
Patent
1990-06-01
1992-07-21
Grimley, A. T.
Photocopying
Contact printing
Light boxes
355274, 361214, 361221, G03G 2100
Patent
active
051326540
ABSTRACT:
A device for assuring separation between a receiver member and a dielectric member in an electrostatographic reproduction apparatus. The electrostatographic reproduction apparatus includes a dielectric member adapted to carry a developed image, the dielectric member being movable along a travel path in which at some point the direction of travel is changed. Upstream of the change of direction of travel of the dielectric member, a mechanism is provided for electrostatically transferring a developed image from the dielectric member to a receiver member movable into register with the dielectric member. The separation device comprises an electrically conductive member of sharp edge configuration. The conductive member is located along a line transverse to and coincident with the desired travel path of the receiver member after separation of the lead edge of the receiver member from the dielectric member at a predetermined distance from the line of separation of the receiver member from the dielectric member as the dielectric member changes direction. Such predetermined distance is sufficient to enable separation of the lead edge of the receiver member from the dielectric member and approach contact with the receiver member to discharge electrical potential on the receiver member and prevent such electrical potential from effecting re-attachment of the receiver member to the dielectric member.
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Parsons Michael H.
Walgrove, III George R.
Eastman Kodak Company
Grimley A. T.
Kessler Lawrence P.
Lee Shuk Y.
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