DRY TONER WITH IMPROVED TONING UNIFORMITY AND TONING PROCESS

摘要

Dry toner particles of an intimate mixture of 25 to 75% by weight of substantially colorless, inert, nonelectroscopic spherodial-shape polymer particles of size distribution in the range of greater than 5 to less than 60 .mu.m, nor more than 15% of the polymer particles being less than 10 .mu.m of greater than 50 .mu.m equivalent spherical diameter, and 75 to 25% by weight of colorant particles having a size distribution within the range of 2.2 to 30 .mu.m and not more than 50% of the colorant particles being less than 1 .mu.m particle size. Ionic copolymer spheroidal particles are preferred. The toner particles are useful for color development of tacky areas by depositing and distributing the toner particles by means of a pad, including an applicator apparatus comprising a housing for toner, at least one moving component in the housing for agitating the toner, means to release toner from the housing, and at least one pad mounted on the housing.