Patent ID: 8501378
Filing Date: 2013-08-06
Classification: G03G

Abstract:
1. An electrophotographic toner comprising: a latex; a colorant; and a release agent, wherein in regard to the electrophotographic toner, G′(80) is in a range of about 2.0×10 wherein in regard to a molecular weight distribution on a gel permeation chromatography (GPC) chromatogram, a molecular weight region of 1.0×10 where G′(80) and G′(140) respectively denote storage moduli of the electrophotographic toner at temperatures of 80° C. and 140° C. when dynamic viscoelasticity according to a sine-wave vibration is measured at an angular velocity of 6.28 rad/sec and at a temperature increase rate of 2.0° C/min, the electrophotographic toner comprises Si and Fe, and each of the Si and Fe is in the range of about 3 to about 30,000 ppm, wherein the releasing agent comprises a mixture comprising a paraffin-based wax and an ester-based wax, and an amount of the ester-based wax is in a range of about 5 to about 39% by weight based on a total weight of the releasing agent.