A toner includes toner particles. The toner particles each include a toner mother particle and an external additive attached to the surface of the toner mother particle. The external additive contains specific external additive particles and silica particles. The specific external additive particles each include a base containing barium titanate and a coat layer covering the base. The coat layer contains antimony tin oxide. Mass ratios of metal elements contained in the toner particles satisfy 0.10<(Ba/Si)<0.60 (formula (1)); 0.05<(Ba/Si)<0.20 (formula (2)); and 1.5<(Sn/Ba)<5.0 (formula (3)).

A toner comprising a toner particle, wherein the toner particle includes a toner base particle containing a binder resin and includes a protruded portion on a surface of the toner base particle; the protruded portion comprises an organosilicon polymer and a polyhydric acid metal salt; and the polyhydric acid metal salt is present on a surface of the protruded portion.

An electrostatic image developing toner includes toner particles including a binder resin and a release agent, an external additive A, and an external additive B. At least the external additive A is present on the surface of the toner particles. At least the external additive B is present on the external additive A. The external additive B is an aggregate of two or more particles. The toner particles have an average circularity of 0.8 or more and 0.94 or less. The amount of the release agent present at the surface of the toner particles is 5 area % or more and 30 area % or less based on the total surface area of the toner particles.

A toner comprising a toner particle comprising a binder resin, wherein the toner particle further comprises: a compound represented by R.sup.1—[OCH.sub.2CH.sub.2].sub.n—OH, where, R.sup.1 represents a linear or branched alkyl group having 8 to 22 carbon atoms, and n is an integer of 1 to 3; and at least one polyvalent element selected from the group consisting of magnesium, calcium, aluminum, boron and iron, and a content of the polyvalent element in the toner is 100 mass ppm to 5000 mass ppm.

A two-component developer includes an electrostatic image developing toner and a carrier, and the electrostatic image developing toner contains toner particles having toner base particles and an external additive. The toner base particles contain a colorant, the colorant contains a pigment P1 and a pigment P2, the absorption maximum wavelength λmax of the pigments P1 and P2 each in dispersion in methyl ethyl ketone is, 400 nm or more and less than 600 nm for the pigment P1 and 600 nm or more and 700 nm or less for the pigment P2, the external additive contains titanium oxide, the content of the titanium oxide is 0.01% by mass or more and less than 1.00% by mass based on the total mass of the toner base particles, and the iron element content (atomic %) of the surface of the carrier as measured by X-ray electron spectroscopy satisfies a specific expression.

Provided is an electrostatic latent image developing toner including: toner base particles containing a binder resin and a white pigment; and an external additive, wherein silica particles are contained as the external additive, and the following relational expression (1) is satisfied, Relational expression (1): 0.70≤Wh_Si(B)/Wh_Si(A)≤0.95, in the above relational expression (1), Wh_Si (A) represents an NET intensity of a Si element contained in the white electrostatic latent image developing toner measured by wavelength dispersive X-ray fluorescence spectrometer, and Wh_Si (B) represents an NET intensity of a Si element contained in the white electrostatic latent image developing toner that has been ultrasonically dispersed in water.

Provided is a two-component developer for electrostatic charge image development including: toner particles containing toner base particles and an external additive disposed on a surface of the toner base particles; and carrier particles having a core material particle and a shell portion disposed on a surface of the core material particle, wherein the external additive contains inorganic particles surface-modified with a surface modifier represented by the following Formula (1); and a value of an iron element content (atomic %) measured by X-ray photoelectron spectroscopy (XPS) on a surface of the carrier particles satisfies the following Expression (1),

(R.sub.1).sub.4-n—Si—(X).sub.n  Formula (1):

4.0≤{A.sub.Fe/(A.sub.c+A.sub.o+A.sub.Fe)}×100≤15.0  Expression (1):

An electrostatic image developing toner includes a toner particle including a binder resin and a colorant. The net intensity N.sub.S of sulfur included in the toner particle and the total net intensity N.sub.A of an alkali metal and an alkaline-earth metal included in the toner particle, which are measured by X-ray fluorescence analysis, satisfy 1.0<N.sub.S/N.sub.A<22.0.

An electrostatic charge image developing toner includes: a toner particle containing a binder resin; and an external additive containing alumina particles having a volume average particle diameter of more than 5 nm and 80 nm or less and silica particles having a volume average particle diameter of 10 nm or more and 90 nm or less, and in the toner particle, a Net intensity N.sub.A of a total of an alkali metal element and an alkaline earth metal element, measured by fluorescence X-ray analysis, is 0.10 kcps or more and 1.30 kcps or less, and a ratio (Ws/Wa) of a content Ws of the silica particles to a content Wa of the alumina particles is more than 0.5 and less than 35.

A method for producing an electrostatic image developing toner includes mixing toner particles containing an amorphous resin with additive particles. A mixing device used in the mixing includes a stirring vessel, a stirring blade, and a jacket configured to cool the stirring vessel, and condition (1) and condition (2) are satisfied. Condition (1): an internal temperature Ti of the mixing device in the mixing and a glass transition temperature Tg of the amorphous resin contained in a near-surface portion of the toner particles satisfy Tg−50° C.≤Ti<Tg (inequality 1). Condition (2): 0.08≤ (Pm−P0)/w≤0.50 (inequality 2) is satisfied. In inequality 2, Pm represents an average power (kW) of a motor for driving the stirring blade of the mixing device in the mixing, P0 represents an idling power (kW) of the motor, and w represents a total mass (kg) of the toner particles and the additive particles in the mixing device.