| 摘要 |
PROBLEM TO BE SOLVED: To provide toner which, even when low-temperature fixing performance is improved, has good development stability and enables the formation of a high-quality image. SOLUTION: The toner has toner particles including at least a binder resin, a colorant and a wax, and an inorganic fine powder. In a temperature-deformation velocity curve formed by first derivation of a temperature-displacement curve of the toner by thermomechanical measurement under a load of 10.5 mN at a rate of temperature increase of 4°C/min, a temperature (T1) at which deformation velocity first becomes a minimum value is in a range of 30.0-55.0°C, a minimum value (R1) of deformation rate at the T1 is ≥-0.300%/°C, a temperature (T2) at which deformation velocity becomes the lowest value is in a range of 60.0-90.0°C, and the lowest value (R2) of deformation velocity at the T2 is ≤-0.400/°C. COPYRIGHT: (C)2009,JPO&INPIT
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