| 摘要 |
PROBLEM TO BE SOLVED: To provide a toner simultaneously realizing environmental stability, durability and stability of a fixation image.SOLUTION: A toner comprises toner particles having a core-shell structure in which a shell phase including a resin A is formed on a core including a binder resin, a coloring agent and wax. The resin A is a resin having organic polysiloxane structure in a molecular structure thereof. An amount of Si derived from the organic polysiloxane structure measured by an X-ray photoelectron spectroscopy analysis (ESCA) of the toner particles with regard to a total amount of constituent elements is 1.3 atomic%-3.3 atomic%. An amount of Si measured by an X-ray fluorescence analysis (XRF) of the toner particles is 0.04 mass%-1.30 mass%. |
