Patent ID: 7647008

Claim:
A multicolor electrostatic imaging system comprising: an imaging apparatus to produce one or more images on a substrate; and a toner reservoir having a liquid toner to form the one or more images, wherein the liquid toner comprises fibrous toner particles and carrier liquid; said carrier liquid comprising, as a major or component, first liquid hydrocarbon having a first rate of evaporation, and, as a minor component, second liquid hydrocarbon having a second rate of evaporation which, at room temperature, is at least an order of magnitude less than the first rate of evaporation; and said fibrous toner particles comprising a polymer portion and pigment dispersed in said polymer portion, said polymer portion comprising a surface of said fibrous toner particles and being insoluble in said carrier liquid at temperatures below 40 degrees Celsius so that the polymer portion will not dissolve or solvate in storage, and solvatable by said carrier liquid only at temperatures above 50 degrees Celsius.