Patent ID: 7862971

Claim:
An emulsion aggregation toner having toner particles comprising a gel latex, a high Tg latex having an onset Tg of 53Â° C. to 55Â° C., optional colorant, and a wax in an amount of 10 weight percent to 14 weight percent of the toner particles, wherein the toner particles produce an image with a half-tone rub fix property as measured as an optical density of the toner particles rubbed off onto a white cloth of less than 0.12 and a crease fix property of less than 60, when the fusing temperature of the toner particles is from 185Â° C. to 200Â° C. at process speeds of from about 560 mm/s to about 870 mm/s, and the toner particles are formed by an emulsion/aggregation process comprising: forming a mixture comprising the gel latex, the high Tg latex, the optional colorant and the wax, stirring the mixture until homogenized, heating the mixture to an aggregation temperature and maintaining the mixture at the aggregation temperature for a time sufficient to permit aggregation of toner particles to the desired size, heating the toner particles to a coalescence temperature above the Tg temperature of the high Tg latex to allow the toner particles to coalesce, cooling the coalesced toner particles at a controlled rate of about 0.6Â° C. per minute from the coalescence temperature to 85Â° C., and after the controlled cooling, allowing the toner particles to cool to room temperature.