A toner includes toner base particles each including: a binder resin, a colorant, and wax; and resin particles on surfaces of the toner base particles. A standard deviation of a distance between the resin particles next to each other on the surfaces of the toner base particles is less than 500 nm.

The toner for developing an electrostatic charge image of the present invention contains a toner base particle comprising a binder resin, at least two kinds of organic pigments and carbon black, and strontium titanate as an external additive.

The toner for developing an electrostatic charge image of the present invention contains a toner base particle comprising a binder resin and at least two kinds of organic pigments, and strontium titanate as an external additive.

The toner for developing an electrostatic charge image of the present invention contains a toner base particle comprising a binder resin and at least two kinds of organic pigments, and alumina as an external additive. The at least two kinds of organic pigments comprises: a pigment P1 having an absorption maximum wavelength λmax (nm) of greater than 400 nm and less than 600 nm when dispersed in methyl ethyl ketone; and a pigment P2 having an absorption maximum wavelength λ max (nm) of 600 nm or more and 700 nm or less when dispersed in methyl ethyl ketone.

A toner comprising a toner particle, wherein the toner particle includes a binder resin, where a volume resistivity Ω.Math.cm of an unfixed solid image on a recording material on which the solid image has been formed using the toner at a toner laid-on level of 0.4 mg/cm.sup.2 is denoted by Tv, and a volume resistivity Ω.Math.cm of the solid image after fixing by applying heat and pressure to the recording material is denoted by Fv, Tv/Fv≥8 is satisfied.

A toner includes toner particles and zinc stearate particles. The toner particles each include a toner mother particle containing a binder resin. The zinc stearate particles have a 50% volume cumulative diameter of at least 3.0 μm and no greater than 6.0 μm. A presence ratio of the zinc stearate particles having a particle diameter of no greater than 1.0 μm is no greater than 2.0% by volume relative to a total amount of the zinc stearate particles. A presence ratio of the zinc stearate particles having a particle diameter of at least 10.0 μm is no greater than 2.0% by volume relative to the total amount of the zinc stearate particles.

A toner set includes a plurality of toners, wherein the toner set includes a first toner containing a yellow colorant and a second toner containing a cyan colorant, the first toner and the second toner each contain a binder resin containing a vinyl-based resin and a crystalline resin, and a release agent containing a hydrocarbon wax, a content of the vinyl-based resin with respect to a total mass of the binder resin is 50% by mass or more, the first toner contains the crystalline resin having a moiety having a crystal structure and a crystal nucleating agent moiety having a crystal nucleating agent, and the second toner contains the cyan colorant that is a compound represented by general formula (1).

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A toner including a toner particle containing a binder resin, and an external additive, wherein the external additive contains an organosilicon polymer fine particle, the organosilicon polymer has a structure represented by at least one selected from the group consisting of R.sup.aSiO.sub.3/2 and R.sup.b.sub.2SiO.sub.2/2 (wherein R.sup.a and R.sup.b represent organic groups), and in the number particle size distribution of the toner as measured within a particle size range of from 2 to 60 μm, the number-average particle diameter T-D.sub.50n at which the accumulation from the smallest diameter is 50% is from 6 to 12 μm, the number ratio of toner 4 μm or less in size is from 2% to 5% of the total toner, and the number ratio of toner 3 μm or less in size as a percentage of the total toner 4 μm or less in size is from 25% to 50%.

The present invention provides an electrophotographic image forming method using an electrophotographic photoconductor. The electrophotographic photoconductor has a protective layer. The surface of the protective layer has a projection structure. The average distance between neighboring projections among a plurality of projections R is set within the range of 100 to 250 nm. A toner including titanate compound particles attached to toner base particles is used.

According to various embodiments, there is provided a toner composition and a developer. The toner composition includes toner particles including a resin, a colorant, a charge control agent, and a surface additive applied to a surface of the toner particles. The surface additive includes strontium titanate (SrTiO.sub.3), silica (SiO.sub.2), silicon tetrachloride (SiCl.sub.4) and a charge control agent.