Patent ID: 11947313
Assignee: SHARP KABUSHIKI KAISHA
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A toner including toner particles containing a polyester resin as a binder resin, and an ester wax as a mold release agent, wherein
a peak top molecular weight of a tetrahydrofuran-soluble component of the toner, as measured by gel permeation chromatography, is 4,000 or more and 6,500 or less,
a tetrahydrofuran-insoluble component of the toner is 10% by weight or more and 30% by weight or less with respect to 100% by weight of the toner,
given an endothermic peak temperature T1 in a heating process and an exothermic peak temperature T2 during a cooling process originating from the ester wax as measured using a differential scanning calorimeter, the value T1-T2 is 15° C. or more and 19° C. or less,
given an outflow start temperature Ti of the toner and a softening temperature Tm of the toner, which are measured by a flow tester,
Ti is 85° C. or more and 95° C. or less,
Tm is 120° C. or more and 140° C. or less, and
the value Tm-Ti is 25° C. or more and 50° C. or less.