Patent ID: 8703378

Claim:
A method of manufacturing toner comprising: mixing mother toner particles comprising a binder resin and a coloring agent and first particles having an average primary particle diameter of from 300 nm to 800 nm to obtain a mixture of the mother toner particles and the first particles using a mixer comprising a rotary shaft member, multiple stirring members provided to a surface of the shaft member, and a casing to cover the multiple stirring members, wherein a cross section of an inner periphery of the casing relative to a direction perpendicular to a rotation axis of the shaft member is circular around the rotation axis with a substantially constant distance between the inner periphery and the rotation axis in a state in which the casing covers the multiple stirring members and a cooling jacket is provided to at least part of an outer periphery of the casing, and wherein a weight ratio of the first particles to the mother toner particles is from 1.5% to 10%.