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Detach Manifold With Molded Plastic Face

IP.com Disclosure Number: IPCOM000046591D
Original Publication Date: 1983-Aug-01
Included in the Prior Art Database: 2005-Feb-07
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Blankenship, DR: AUTHOR [+4]

Abstract

This article discloses a process for molding polycarbonate material to paper-supporting surfaces in an electrophotographic machine so that copy/print paper does not pick up toner contamination as it moves across the surface. This problem is especially significant near detach stations where air or vacuum operations may move some charged toner material onto metal support surfaces. The use of dielectric material to "mask" a metal ground plane is effective in reducing electrostatic attraction force and thereby reducing toner accumulation. An earlier article [*] discloses the use of polyimide tape for this purpose. It has been found that this problem can be solved more effectively with polycarbonate-insulating material and that a process of molding polycarbonate material to an existing, modified, detach housing is practical.

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Detach Manifold With Molded Plastic Face

This article discloses a process for molding polycarbonate material to paper- supporting surfaces in an electrophotographic machine so that copy/print paper does not pick up toner contamination as it moves across the surface. This problem is especially significant near detach stations where air or vacuum operations may move some charged toner material onto metal support surfaces. The use of dielectric material to "mask" a metal ground plane is effective in reducing electrostatic attraction force and thereby reducing toner accumulation. An earlier article [*] discloses the use of polyimide tape for this purpose. It has been found that this problem can be solved more effectively with polycarbonate- insulating material and that a process of molding polycarbonate material to an existing, modified, detach housing is practical. The method is as follows: 1) produce a raw extrusion of the required housing; 2) machine the extrusion to dimension; and 3) place the machined extrusion into a mold and inject polycarbonate at standard pressure and heat. The result is a polycarbonate surface that is dielectrically effective and possesses a high degree of wear resistance. Reference W. F. Risedorf, "Air-Jet Detack," IBM Technical Disclosure Bulletin 22, 4400 (March 1980).

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