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COMPOSITE DEVELOPER PARTICLES

IP.com Disclosure Number: IPCOM000023626D
Original Publication Date: 1978-Aug-31
Included in the Prior Art Database: 2004-Mar-31

Publishing Venue

Xerox Disclosure Journal

Abstract

The drawings depict a composite particle for utilization as a developer material in a development system of an electrophoto-graphic printing machine, Composite particle 62 has a conduc-tive particle 62a with a positive polarity relative to insulating particle 62b, This results in triboelectric pairing of the particles, After the particles have been triboelectrically paired, they are fused to one another, The resultant particle 62 is elongated in shape and has an insulating portion 62b and a conductive portion 62a. Con-ductive portion 62a and insulating portion 62b may be magnetic or non-magnetic depending upon the application therefore Composite particle 62 is substantially symmetrical with conductive portion 62a being approximately the same size as insulating portion 62b.