| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a toner that has a wide fixable temperature range where fixation can be performed at a lower temperature compared to the prior arts and generation of hot offset is suppressed to a higher temperature, and that suppresses decrease in charging and generation of fogging even when the toner is left to stand in a high temperature and high humidity environment.SOLUTION: The toner comprises a binder resin, a release agent, and a colorant. The binder resin comprises a crystalline polyester resin and a non-crystalline polyester resin. In the measurement of dynamic viscoelasticity of the toner, a storage modulus (G') at 120°C is 1.0×10or less; a maximum of a loss tangent represented by (loss modulus (G"))/(storage modulus (G'))=(loss tangent (tanδ)) is present in a temperature region over 160°C; a minimum of the loss tangent is present in a temperature region of 120°C or higher and 160°C or lower; and the minimum is 1.1 or more.</p> |
