Patent ID: 8093342

Claim:
A toner for developing electrostatic latent images, comprising: a binder resin; a colorant; and a charge control agent for controlling a charging state of fine particles, comprising a polymer having a unit represented by the chemical formula (8): wherein R 8w and R 8x are each independently a halogen atom or a hydrogen atom, R 8y is a CH 3 group or a hydrogen atom, R 8a , R 8b , R 8c , R 8d , and R 8e are each independently SO 3 R 8f wherein R 8f is a linear or branched alkyl group having 1 to 8 carbon atoms, a substituted or unsubstituted aromatic ring structure, or a substituted or unsubstituted heterocyclic ring structure, a hydrogen atom, a linear or branched alkyl group having 1 to 8 carbon atoms, or a linear or branched alkoxyl group having 1 to 8 carbon atoms, and at least one of R 8a , R 8b , R 8c , R 8d , and R 8e is SO 3 R 8f .