Patent ID: 7244536

Claim:
A toner comprising: (A) a resin binder, (B) a black colorant consisting essentially of a composite oxide of two or more metals, the composite oxide being contained in an amount of 1 to 40 parts by weight, based on 100 parts by weight of the resin binder, and at least one metal constituting the composite oxide is selected from the group consisting of Mg, Al, Ti, Mn, Fe and Cu, (C) a charge control agent comprising a quaternary ammonium salt, the quaternary ammonium salt being contained in an amount of 0.01 to 5 parts by weight, based on 100 parts by weight of the resin binder, and the quaternary ammonium salt is a compound represented by formula (Ib): and (D) a metal-containing azo dye and/or a metal complex of an aromatic hydroxycarboxylic acid as a negatively charge control agent, wherein the toner is free of carbon black.