TONER, IMAGE FORMING APPARATUS, AND METHOD FOR MANUFACTURING TONER

To provide toner that can prevent whitening of a member of an image forming apparatus while preventing occurrence of image deletion, and the image forming apparatus and a method for manufacturing the toner.SOLUTION: Toner includes a plurality of toner particles. Each toner particle includes a toner base particle that contains a binder resin, and an external additive. The external additive contains external additive particles 3 that are attached to surfaces of the toner base particles. Each external additive particle 3 includes a titania particle 4, silica particles 5 that are arranged on a surface of the titania particle 4, and adhesive members 6 that bond silica particles 5 to the titania particle 4. A number average particle diameter of the silica particles 5 is 25 nm or more and 105 nm or less. Each adhesive member 6 contains a thermosetting resin having a functional group that can react with a hydroxyl group.SELECTED DRAWING: Figure 2 【課題】画像流れの発生を抑制しつつ、画像形成装置の部材の白化を抑制できるトナー、画像形成装置、及びトナーの製造方法を提供する。【解決手段】トナーは、複数のトナー粒子を含む。トナー粒子は、結着樹脂を含有するトナー母粒子と、外添剤とを備える。外添剤は、トナー母粒子の表面に付着した外添剤粒子３を含有する。外添剤粒子３は、チタニア粒子４と、チタニア粒子４の表面に配置されたシリカ粒子５と、チタニア粒子４とシリカ粒子５とを接着させる接着部材６とを備える。シリカ粒子５の個数平均粒子径は２５ｎｍ以上１０５ｎｍ以下である。接着部材６は、水酸基と反応可能な官能基を有する熱硬化性樹脂を含む。【選択図】図２