| 摘要 |
PROBLEM TO BE SOLVED: To provide an electrophotographic toner having excellent releasability in oilless fixing and exhibiting excellent performance in high-speed fixing and low-temperature fixing. SOLUTION: The electrophotographic toner comprises at least a resin, a colorant and a release agent, wherein a solidifying point of the release agent is 79-109°C, one peak is present in an endothermic curve with a differential scanning calorimeter, the difference between a temperature giving the highest endothermic peak and an end set temperature is within 10°C, and a melt viscosity at 110°C is 4-9 mPa s. The release agent in the toner particles forms≥3 domains per toner particle, domains having a major to minor axis ratio of 5-15 occupy≥90% by number of all domains, domains having a major axis of≥1.5μm occupy≥40% by number, and domains having a major axis of≥1.0μm occupy≥80% by number. COPYRIGHT: (C)2005,JPO&NCIPI
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