Patent ID: 8530127

Claim:
A process for preparing toner comprising: forming an aqueous dispersion medium comprising calcium phosphate, forming a monomer mixture of a polymer charge control agent having a weight average molecular weight of 14,000 to 18,000, pigment, and a monomer for a binder resin, dispersing the monomer mixture into the aqueous dispersion medium in the form of droplets, and suspension-polymerizing the monomer mixture dispersed in the form of droplets, wherein 2.5 to 4 parts by weight of the calcium phosphate and 1.5 to 5 parts by weight of the charge control agent are used, based on 100 parts by weight of the monomer mixture; and wherein the charge control agent is at least one kind of a polymer represented by the following Chemical Formula 1: wherein l, m, n are identical or different, respectively an integer of from 1 to 60, and l:(m+n) is 3:97 to 15:85.