| abstract |
(57) [Problem] To be excellent in fixing properties such as document offset property, bending resistance of a fixed image, releasability of a sheet to be fixed, OHP transparency, etc., and high in charging uniformity and stability, fog, scattering, etc. An object of the present invention is to provide a toner capable of forming excellent image quality without any problem. SOLUTION: In the temperature dispersion measurement of the dynamic viscoelasticity of the toner, the value of the storage elastic modulus G ′ and the value of the loss elastic modulus G ″ of the toner obtained under a frequency of 6.28 rad / sec coincide with each other at a temperature of 0 ° C. or more. If the low temperature is in the range of 60 to 75 ° C., the Mw of the toner obtained by GPC measurement is in the range of 20,000 to 65,000, and the molecular weight of the toner obtained in GPC measurement is 1,000% or less, and the peak area is 3.0% or less. This is a certain electrostatic image developing toner. |