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MIGRATION IMAGING

IP.com Disclosure Number: IPCOM000024582D
Original Publication Date: 1981-Feb-28
Included in the Prior Art Database: 2004-Apr-02
Document File: 2 page(s) / 53K

Publishing Venue

Xerox Disclosure Journal

Abstract

In the migration imaging method, the migration imaging member is electro-statically charged, exposed and then developed by allowing migration of particles within a softened layer. This system is particularly suited for micrographics but in many cameras, such a5 is common, computer output microfilm devices, the film is located during exposure by means of a device which pushes the front surface of the film hard against an aperture. Such contact has been found to cause discharge of the film in the area of contact. To reduce the discharged area of the film, a tapered frame is provided at the aperture which reduces the contact area of the film to a minimum, preferably less than the typical fiche separation. The area of discharge is thus reduced to harmless proportions. The device is also useful in liquid development apparatus whereby the film is contacted with a softening liquid for the migration layer. The liquid is contained within the fiche area of the film by the tapered frame which presses against the face of the film being developed.

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XEROX DISCLOSURE JOURNAL

Arnold L. Pundsack

I Paul S. Vincett

MIGRATION IMAGING Proposed Classification

U.S. C1. 355/20

Int. C1. G03b 27/72

In the migration imaging method, the migration imaging member is electro- statically charged, exposed and then developed by allowing migration of particles within a softened layer. This system is particularly suited for micrographics but in many cameras, such a5 is common, computer output microfilm devices, the film is located during exposure by means of a device which pushes the front surface of the film hard against an aperture. Such contact has been found to cause discharge of the film in the area of contact. To reduce the discharged area of the film, a tapered frame is provided at the aperture which reduces the contact area of the film to a minimum, preferably less than the typical fiche separation. The area of discharge is thus reduced to harmless proportions. The device is also useful in liquid development apparatus whereby the film is contacted with a softening liquid for the migration layer. The liquid is contained within the fiche area of the film by the tapered frame which presses against the face of the film being developed.

37 Volume 6 Number 1 January/February 1981

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   XEROX DISCLOSURE JOURNAL Volume 6 Number 1 January/February 1981

38

[This page contains 1 picture or other non-text object]