Importance

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Abstract

A toner for electrographic printing includes a liquid carrier and a release agent added to the carrier to reduce the amount of carrier leaving the developer section, thus allowing operation at higher speeds and reducing the time and energy required for carrier removal in subsequent sections. An imaging system, or unit of an imaging system, and a method of imaging employ an imaging member such as a belt to form a liquid-toned image, to condition the image, and to transfer it to a print-receiving medium. The member moves through several sections, and transports liquid toner out of an image-developing section. In a preferred embodiment the release agent wets the imaging member, and has a higher boiling point than the carrier and a lower surface tension, though its viscosity may be higher. The release agent reduces carrier entrainment, and coats the imaging member, also enhancing transfer of the final print image. It may also counteract aging characteristics of the imaging member.

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First Claim