US Patent 9946181 Toner

A toner comprises toner particles, each of which contains a binder resin, a colorant, a wax and a crystalline polyester. The melting point P(t) of the crystalline polyester is at least 65.0° C. and not more than 80.0° C., and regarding a storage elastic modulus G′ obtained in dynamic viscoelasticity measurement of the toner, where G′ at 50° C. is denoted by G′(50), G′ at 80° C. is denoted by G′(80), G′ at 120° C. is denoted by G′(120), and G′ at the melting point P(t) of the crystalline polyester is denoted by G′(t), the following formulas are satisfied: 4.2×108 Pa≤G′(50), 3.0×102≤G′(50)/G′(80), and G′(t)/G′(120)≤7.0×102.