Patent ID: 8383306
Filing Date: 2013-02-26
Classification: G03G

Abstract:
1. An electrophotographic toner that includes a latex, a colorant and a releasing agent, wherein the electrophotographic toner further comprises zinc (Zn), iron (Fe) and silicon (Si), wherein the [Zn]/[Fe] ratio is in the range of about 5.0×10 −2 to about 2.0, wherein the [Si]/[Fe] ratio is in the range of about 5.0×10 −4 to about 5.0×10 −2 , wherein [Zn], [Fe] and [Si] denote the intensities of Zn, Fe and Si, respectively, as measured by an X-ray fluorescence spectrometry, and wherein the electrophotographic toner has a log G′(60) in the range of about 0.70×10 1 to about 0.90×10 1 , and a value of about 1.0×10 −1 to about 2.0×10 −1 , and wherein G′(60) and G′(80) denote the storage moduli (Pa) of the electrophotographic toner at temperatures of 60° C. and 80° C. respectively, when the dynamic viscoelasticity of the electrophotographic toner is measured at an angular velocity of 6.28 rad/sec, a temperature ramp rate of 2.0° C./min, and an initial strain ratio of 0.3%.