Patent ID: 9557669
Date: 2017-01-31
CPC Classifications: G03G

Claim:
1. A toner, comprising: a binder resin; and tetrahydrofuran insoluble matter, wherein the toner has a glass transition temperature Tg1st of 20° C. to 50° C., where the glass transition temperature Tg1st is measured in a first heating in differential scanning calorimetry of the toner, wherein the tetrahydrofuran insoluble matter of the toner has a glass transition temperature Tg2nd of −40° C. to 30° C., where the glass transition temperature Tg2nd is measured in a second heating in differential scanning calorimetry of the tetrahydrofuran insoluble matter, wherein the tetrahydrofuran insoluble matter has a storage modulus at 100° C. of 1.0×10 wherein a ratio of a storage modulus of the tetrahydrofuran insoluble matter at 40° C. to the storage modulus of the tetrahydrofuran insoluble matter at 100° C. is 3.5×10 or less.