Entwickler zum aufladungslosen Entwickeln von xerografischen,ein elektrisches Bild enthaltenden Oberflaechen

摘要

An improved developer for xerographic surfaces in which an image is produced without an applied charge, in which a controlled developer pigment of one polarity is suspended in an insulating carrier liquid, and a second developer medium also capable of acting as a developer, but of opposite polarity and incapable of wetting the first pigment, is used to enhance deposition of the first pigment in image areas and to shield the non-image areas against deposition of the first developer.