Patent ID: 9588451
Date: 2017-03-07
CPC Classifications: G03G

Claim:
1. A toner, comprising: a non-crystalline polyester resin; a crystalline polyester resin; and a charge controlling agent, wherein an amount of Al detected in the toner is 0.7 atomic % to 1.3 atomic %, where the amount of Al detected is determined based on quantitative analysis of Al by X-ray photoelectron spectroscopic analysis (XPS), and [Tg2nd (THF insoluble matter)] is −40° C. to 30° C., where the [Tg2nd (THF insoluble matter)] is a glass transition temperature of a THF insoluble component of the toner measured by differential scanning calorimetry (DSC) after heating the THF insoluble component from −80° C. to 150° C. at a heating rate of 10° C./min in a nitrogen atmosphere, cooling the THF insoluble component from 150° C. to −80° C. at a cooling rate of 10° C./min, and then heating the THF insoluble component to 150° C. at a heating rate of 10° C./min.