An electrostatic image developing toner includes toner particles containing a binder resin and a release agent. In sections of the toner particles in which the sections of the toner particles have an area St in total and, among sections of domains of the release agent, sections of domains having long diameters of 10 nm or more and 500 nm or less have a total area Sa and sections of domains having long diameters of 1500 nm or more and 3000 nm or less have a total area Sb, an area fraction Sa/St is 2% or more and an area fraction Sb/St is 20% or more.

A method of producing resin particles includes a first step of adding a monomer-containing emulsified liquid that contains a polymerizable monomer and an aqueous medium to an aqueous mother medium to polymerize the polymerizable monomer; and a second step of adding an aqueous medium for cooling to the aqueous mother medium after completion of the addition of the monomer-containing emulsified liquid to the aqueous mother medium.

A toner including particles containing a binder resin, a colorant, and wax, the toner having, in differential scanning calorimetry (DSC) performing a temperature program including steps of heating from 40° C. to 100° C. or more at a heating rate of 10° C./min (first heating), then cooling to 40° C. or less at a cooling rate of 10° C./min (first cooling), and then heating to 100° C. or more at a heating rate of 10° C./min (second heating), a total endothermic amount HA1 in the first heating from 40° C. to 100° C. and a total endothermic amount HA2 in the second heating from 40° C. to 100° C. that satisfy the following relationship (1), and a difference between a full width at half maximum of an endothermic peak in the second heating and a full width at half maximum of an exothermic peak in the first cooling of 7.00° C. or less: (1) HA2/HA1>0.80.

A fixing member includes a slide layer having a cylindrical shape and a thickness of 8 micrometers (μm) or more and 20 μm or less, a base layer formed on an outer side of the slide layer, and a surface layer formed on an outer side of the base layer. The slide layer has Benard convection cell structure having an average diameter of 50 μm or more and 200 μm or less on a surface that is not in contact with the base layer, and the slide layer includes an additive having a median particle diameter D50 of 4.5 μm or less and an aspect ratio of 30 or more and less than 50.

An electrostatic image developer includes a toner containing toner particles, a carrier, and an external additive containing titanium dioxide particles of two types having different refractive indexes, fatty acid metal salt particles, and an abrasive.

A toner set and an image forming method, both of which can print a full-color image that is superior in gradation and color reproducibility of an image including a higher-order color and superior in continuous printing durability. When one color toner selected from the group consisting of the color toners included in the toner set is defined as a first toner and other color toners are defined as second toners, an internal friction angle θ1 (°) of the first toner and an internal friction angle θ2 (°) of each of the second toners satisfy relationships represented by the following formulae (1) and (2), and a first image developed with the first toner and second images developed with the second toners are transferred in this order on a recording medium or a transfer medium to form an image including a higher-order color:

θ1<θ2  Formula (1):

1°≤θ2−θ1≤3°.  Formula (2):

A fine particle of a silicon polymer, wherein the fine particle has pores; the total pore volume of the fine particle is 0.35 to 1.00 cm.sup.3/g; a number-average primary particle diameter of the fine particle is 0.05 to 0.30 μm; the silicon polymer has a siloxane bond and an Si—R.sup.1 bond; R.sup.1 represents an alkyl group having 1 to 6 carbon atoms; and designating, with reference to a chart obtained by .sup.29Si-NMR measurement of the fine particle, A as a total peak area corresponding to the silicon polymer, and B as a peak area corresponding to Si—R.sup.1, A and B satisfy a following formula (1):

10.0≤B/A×100≤45.0   (1).

A white toner includes a toner particle that contains a binder resin, a release agent, and titanium oxide, at least a part of the titanium oxide being present in a release agent domain, in which in observation of a cross section of the toner particle, an average major axis length Dt of the toner particle, an average major axis length Dw of the release agent domain, and an average major axis length Dp of the titanium oxide in the release agent domain satisfy Expressions (1) and (2).

2×Dp≤Dw≤10×Dp  Expression (1):

0.1×Dt≤Dw≤0.5×Dt  Expression (2):

A photoluminescent toner includes a photoluminescent toner particle that contains a binder resin, a release agent, and a photoluminescent pigment and has a release agent domain, and a silicone oil-treated silica particle that is externally added to the photoluminescent toner particle, in which in observation of a cross section of the photoluminescent toner particle, an average major axis length Dw of the release agent domain and an average major axis length Dp of the photoluminescent pigment satisfy Expression (1).

0.3≤Dw/Dp≤1.0  Expression (1):

Provided is a toner blend composition comprising a first pigmented toner and a second toner that is devoid of any pigment additive, i.e., a ‘non-pigmented or clear toner’. The non-pigmented or clear toner is about 1% to about 15% by weight of the toner blend composition. The resulting inventive toner blend composition surprisingly exhibits similar print density on a page compared to a fully pigmented toner. Moreover, this toner blend composition exhibits improvement in toner usage per page, thus lowering toner cost compared to a fully pigmented toner. The non-pigmented or clear toner may be used in combination with either a monochrome or conventional toner using a carbon black pigment, or a chemically processed toners (‘CPT”) toners using a black pigment, magenta pigment, yellow pigment or a cyan pigment.