abstract |
Provided is a toner having excellent development durability, storage stability, environmental stability, anti-member contamination, and low-temperature fixability. The present invention provides a toner having toner particles having a surface layer containing an organosilicon polymer, wherein the organosilicon polymer has a specific partial structure, and the tetrahydrofuran-insoluble content of the toner particles. In 29 Si-NMR measurement, the ratio [ST3] of the peak area of the partial structure to the total peak area of the organosilicon polymer satisfies the relationship of ST3 ≧ 0.40. [Selection figure] None |