A toner, containing: a binder resin; and kaolinite, wherein the toner has a molecular weight distribution having a main peak in a range of 1,000 to 10,000, and a half value width of the main peak is 8,000 to 30,000, where the molecular weight distribution is obtained by gel permeation chromatography (GPC) of THF soluble matter of the toner, and wherein the toner contains the kaolinite in an amount of 5% by mass to 35% by mass.

The toner comprising a toner particle containing a binder resin and a colorant, an iron oxide particle and an organic-inorganic composite fine particle, wherein the organic-inorganic composite fine particle comprises a vinyl resin particle, and inorganic fine particles which are embedded in the vinyl resin particle, and at least a part of which is exposed at surface of the organic-inorganic composite fine particle; the organic-inorganic composite fine particle has convexes derived from the inorganic fine particles, and wherein: a coverage ratio of the surface of the organic-inorganic composite fine particle with the inorganic fine particle is 20-70%; and the content of the iron oxide particle present on a surface of the toner particle is 0.1-5.0 mass % based on the mass of the toner particle.

An electrostatic latent image developing toner includes toner particles containing a binder resin and at least one type of wax. A dispersed-phase diameter distribution of the wax has a peak at a dispersed-phase diameter in a range from 0.04 m to 0.20 m and a peak at a dispersed-phase diameter in a range from 1.0 m to 5.0 m. The wax includes first wax particles each having a dispersed-phase diameter in the range from 0.04 m to 0.20 m and second wax particles each having a dispersed-phase diameter in the range from 1.0 m to 5.0 m. A volume ratio of the first wax particles relative to the second wax particles is at least 0.5 and no greater than 1.5.

An electrostatic latent image developing toner includes a plurality of toner particles. The toner particles each have a toner mother particle and first inorganic oxide particles disposed on a surface of the toner mother particle. The first inorganic oxide particles are contained in the electrostatic latent image developing toner in an amount of no less than 1.0% by mass and no greater than 2.0% by mass relative to mass of the toner mother particles. The toner mother particles have an average roundness of no less than 0.960. The first inorganic oxide particles have an average major axis diameter of no less than 500 nm and no greater than 3,000 nm, an average minor axis diameter of no less than 100 nm and no greater than 250 nm, and an aspect ratio of no less than 2 and no greater than 20.

Provided is an external additive for toner, which is suitable for producing a toner having excellent storage stability and chargeability. A silica fine powder suitable for being added to the external additive for toner is also provided. The silica fine powder has a specific surface area of 15 m.sup.2/g or more and 90 m.sup.2/g or less, a loose bulk density of 0.09 g/cm.sup.3 or more and 0.18 g/cm.sup.3 or less, a carbon content of 0.25 wt % or more and 0.90 wt % or less, and a hydrophobicity of 60% or more and 75% or less. It is preferable that a ratio (A)/(B) of the loose bulk density of the silica fine powder after surface treatment (A) to a loose bulk density of the silica fine powder before the surface treatment (B) be 1.05 or more and 1.60 or less.

An electrostatic latent image developing toner includes toner base particles including a binder resin and a nucleating agent, wherein the binder resin includes a hybrid crystalline resin having a structure in which a crystalline polyester resin unit and an amorphous resin unit are chemically bonded to each other, and the nucleating agent is at least one compound selected from the group consisting of arachidyl alcohol, behenyl alcohol, 1-tetracosanol, 1-hexacosanol, octacosanol, palmitic acid, margaric acid, stearic acid, arachidic acid, behenic acid, and lignoceric acid.

MICR toner compositions for use in offset lithography (or offset printing). Such MICR toner compositions exhibit desirable magnetic properties.

MICR toner compositions for use in offset lithography (or offset printing). Such MICR toner compositions exhibit desirable magnetic properties.

Provided is an electrostatic image developing toner containing toner particles having a domain-matrix structure formed with a matrix of an amorphous polyester resin and a domain of a crystalline resin, wherein the toner particles contain an releasing agent and alkoxy aniline; and a content of the alkoxy aniline contained in the toner particles is in the range of 0.1 to 15.0 mass ppm.

The present invention relates to an image forming method using a yellow toner, a magenta toner, and a cyan toner, in which the yellow toner, the magenta toner, and the cyan toner respectively contain toner base particles containing a binder resin containing an amorphous polyester resin as a main component and a crystalline resin, aluminum, and a colorant, and the concentration of aluminum in the toner base particles of the yellow toner measured by high-frequency inductively coupled plasma emission spectral analysis satisfies a specific relation. According to the present invention, an image forming method and a toner set which can improve the thin paper separation property while maintaining favorable low temperature fixability are provided.