Abstract: Toner of one aspect of the present invention has a weight average molecular weight Mw of 30,000?Mw?95,263 as determined from a molecular weight distribution based on GPC, includes a THF-insoluble gel component at a weight proportion of less than 5%, and includes components each having a molecular weight of 500 to 1500 which components have an area occupancy of 4% to 10% on a chart of the molecular weight distribution based on GPC.

Abstract: Toner of one aspect of the present invention has a weight average molecular weight Mw of 30,000?Mw?95,263 as determined from a molecular weight distribution based on GPC, includes a THF-insoluble gel component at a weight proportion of less than 5%, and includes components each having a molecular weight of 500 to 1500 which components have an area occupancy of 4% to 10% on a chart of the molecular weight distribution based on GPC.

Abstract: A two-component color developer containing a toner and a resin-coated carrier, the toner containing at least a polyester resin as a binding resin, an organic pigment as a colorant and inorganic fine particles as an external additive, wherein the inorganic fine particles have a negative polarity, the toner has a volume resistivity of 40×109 to 220×109 ?cm and a negative polarity, and the carrier has a coat durability of 90% or greater.

Abstract: Toners of respective colors of a full-color toner set each contain a binder resin which is polyester resin; and a release agent dispersing aid which is styrene acrylic copolymer resin having at least one of an ?-methylstyrene structure and a styrene structure. The styrene acrylic copolymer resin is contained in an amount of 7 parts by weight to 14 parts by weight with respect to 100 parts by weight of the polyester resin. The full-color toner set has a sum of resistivities of the toners of the respective colors of 410×109 to 510×109 (?·cm).

Abstract: Toners of respective colors of a full-color toner set each contain a binder resin which is polyester resin; and a release agent dispersing aid which is styrene acrylic copolymer resin having at least one of an ?-methylstyrene structure and a styrene structure. The styrene acrylic copolymer resin is contained in an amount of 7 parts by weight to 14 parts by weight with respect to 100 parts by weight of the polyester resin. The full-color toner set has a sum of resistivities of the toners of the respective colors of 410×109 to 510×109 (?·cm).

Abstract: A toner for electrostatic image development is configured such that: a binder resin is polyester resin; a release agent dispersing aid is styrene acrylic copolymer resin having at least one of an ?-methylstyrene structure and a styrene structure, and is contained in an amount of 5.5 parts by weight to 12 parts by weight with respect to 100 parts by weight of the polyester resin; and the styrene acrylic copolymer resin has an acid value of 3 KOHmg/g to 9 KOHmg/g, and the toner for electrostatic image development has an acid value of 14 KOHmg/g to 19 KOHmg/g.

Abstract: Toner of one aspect of the present invention has a weight average molecular weight Mw of 30,000?Mw?95,263 as determined from a molecular weight distribution based on GPC, includes a THF-insoluble gel component at a weight proportion of less than 5%, and includes components each having a molecular weight of 500 to 1500 which components have an area occupancy of 4% to 10% on a chart of the molecular weight distribution based on GPC.

Abstract: A two-component color developer containing a toner and a resin-coated carrier, the toner containing at least a polyester resin as a binding resin, an organic pigment as a colorant and inorganic fine particles as an external additive, wherein the inorganic fine particles have a negative polarity, the toner has a volume resistivity of 40×109 to 220×109 ?cm and a negative polarity, and the carrier has a coat durability of 90% or greater.

Abstract: A coated carrier that peeling and wearing of a coating layer are hard to be generated and a method of manufacturing the coated carrier are provided. The coated carrier includes a core particle including a magnetic body, a first resin layer coating the core particle, a resin particle layer including a resin particle fixed to the first resin layer as a single layer, and a second resin layer. The first resin layer includes a first resin having a first reactive group. The resin particle layer is formed of resin particles including a cross-linking resin having a second reactive group which can undergo a cross-linking reaction with the first reactive group. The second resin layer is provided so as to fill gaps between the resin particles.

Abstract: A coated carrier that peeling and wearing of a coating layer are hard to be generated and a method of manufacturing the coated carrier are provided. The coated carrier includes a core particle including a magnetic body, a first resin layer coating the core particle, a resin particle layer including a resin particle fixed to the first resin layer as a single layer, and a second resin layer. The first resin layer includes a first resin having a first reactive group. The resin particle layer is formed of resin particles including a cross-linking resin having a second reactive group which can undergo a cross-linking reaction with the first reactive group. The second resin layer is provided so as to fill gaps between the resin particles.