Abstract: The present invention is directed to an electrostatographic toner having a sulfone charge control agent having the structure X—SO2—Y wherein X is an alkyl or aromatic group and Y is an alkyl or aromatic group. The present invention is also directed to an electorstatographic developer containing the electrostatographic toner having a sulfone charge control agent having the structure X—SO2—Y wherein X is an alkyl or aromatic group and Y is an alkyl or aromatic group and carrier particles.

Abstract: The present invention is an electrostatographic toner that includes an organometallic complex of dimethyl sulfoxide with a metal salt as a charge control agent having the structure; (M+n)x ((CH3)2SO2)y (A?q)z where n, q, x and z are integers between 1 and 6, and y is an integer between 2 and 12. The present invention also includes a developer having a toner, an organometallic complex of dimethyl sulfoxide with a metal salt as a charge control agent having the structure; (M+n)x ((CH3)2SO2)y (A?q)z where n, q, x and z are integers between 1 and 6, and y is an integer between 2 and 12, and a carrier particle.