| 摘要 |
PROBLEM TO BE SOLVED: To provide a toner having fixability, such as low temperature fixability and durable high-temperature offset characteristics, and also having excellent heat resistant preservability. SOLUTION: The toner comprises at least: two release agents; and a binder resin, wherein the toner further has a glass transition temperature of 50 to 53°C. When a differential scanning calory is measured, a differential scanning calory curve can be monitored in which endotherm performed by the release agent is started in the range of 65 to 70°C and is finished in the range of 135 to 140°C. Moreover in the differential scanning calory curve, endothermic peak at the lowest temperature due to the release agent is in the range of 80 to 85°C; the endothermic peak at the highest temperature is in the range of 127 to 133°C; and the local maximum point is in the range of 90 to 95°C. COPYRIGHT: (C)2010,JPO&INPIT |
