Patent ID: 8765344

Claim:
An electrophotographic toner comprising: a binder comprising two resins having different weight average molecular weights; carbon black; and a releasing agent, wherein the electrophotographic toner has a molecular weight distribution curve measured by gas permeation chromatography (GPC), with a main peak in a region of from about 8.0×10 3 g/mol to about 4.0×10 4 g/mol and a shoulder starting point in a region greater than or equal to about 1.0×10 5 g/mol; the electrophotographic toner has a weight average molecular weight of from about 5.0×10 4 g/mol to about 4.0×10 5 g/mol and a Z-average molecular weight of from about 1.0×10 5 g/mol to about 6.0×10 6 g/mol; free carbon black in washer liquid of deionized water containing 1 wt % of the electrophotographic toner has an absorbance of about 0 to about 0.01 at 600 nm; and wherein the electrophotographic toner comprises iron (Fe) in an amount of from about 1.0×10 3 ppm to about 1.0×10 4 ppm, and silicon (Si) in an amount of from about 1.0×10 3 ppm to about 5.0×10 3 ppm.