Patent ID: 8101329
Filing Date: 2012-01-24
Classification: G03G

Abstract:
1. A toner in which mother toner particles comprising at least a resin binder and a colorant are coated with an external additive, wherein the mother toner particles comprise fine powders of a fluororesin having an average particle size of 1 μm or less in an amount of from 4 to 10 parts by weight, based on 100 parts by weight of the resin binder, wherein the external additive comprises fine inorganic particles A having an average particle size of from 5 to 100 nm and fine inorganic particles B having an average particle size of from 5 to 100 nm and which is smaller than the average particle size of the fine inorganic particles A, and wherein the weight ratio of the fine inorganic particles A to the fine inorganic particles B is from (4÷0.9) to 6.