Abstract: The present invention provides a toner that gives satisfactory fixing image quality in both high-speed fixing process and low-speed fixing process and shows excellent image quality for a long time by inhibiting inside contamination even in repeated use. In a toner including toner particles containing a binder resin, a hydrocarbon wax, and a coloring agent, the hydrocarbon wax is prescribed by a relationship in total amounts of components having carbon atoms in specific ranges in thermal desorption and GC/MS analysis when heated at 200° C. for 10 minutes.

Abstract: A toner is provided which has toner particles and an inorganic fine powder; the toner particles being obtained by suspension polymerization using a specific polar resin. The toner is a toner in which; where, in displacement levels found in a micro-compression test in which a force is applied to a toner single particle at a loading rate of 9.8×10?6 N/sec to measure a displacement level (?m) at a point of time where the force has reached a maximum force of 4.90×10?4 N, the displacement level of the toner at a measurement temperature of 25° C. is represented by X(25) and the displacement level of the toner at a measurement temperature of 50° C. by X(50), and the number average particle diameter of the toner is represented by D (?m), the X(25), X(50) and D satisfies the relations: 0.10?X(25)/D?0.35??(1) 30?[X(50)?X(25)]/X(25)×100?150??(2).

Abstract: To provide a toner having a superior developing performance while preventing any fixing assembly from being contaminated, the toner has toner particles which have toner base particles containing at least a binder resin, a colorant and a wax, and an inorganic fine powder, wherein the wax has a 0.2% by mass heating loss temperature of 200° C. or more and a 1.0% by mass heating loss temperature of 250° C. or more and has a melt viscosity at 120° C. of from 3.0 mPa·s to 15.0 mPa·s.

Abstract: A toner includes toner particles each containing a binder resin, a colorant, and a carboxy-containing styrene-based resin, in which the toner particles are produced in an aqueous medium, each of the toner particles has a styrene-acrylic-based resin component content of 50.0% by mass or more, cyclohexane-insoluble matter A obtained by subjecting the toner to Soxhlet extraction with cyclohexane for 4 hours is 70.0% by mass or more, and cyclohexane-insoluble matter B obtained by subjecting the toner to Soxhlet extraction with cyclohexane for 24 hours is 40.0% by mass or less, and wherein when the z-average molecular weight and the weight-average molecular weight of tetrahydrofuran-soluble matter of the carboxy-containing styrene-based resin determined by gel permeation chromatography measurement are represented by Mz and Mw, respectively, Mz and Mw satisfy the following expressions: 10,000?Mw?30,000, and 1.62?Mz/Mw?5.00.

Abstract: In a toner including toner particles obtained by performing suspension polymerization using a monomer composition containing a polymerizable monomer and a polar resin and in a method for manufacturing the above toner, the polar resin satisfies the following conditions (1) to (4). (1) The polar resin is a styrene-based resin. (2) A main peak molecular weight Mp is 5,000 to 100,000. (3) When the acid value of a low molecular weight component is represented by A and the acid value of a high molecular weight component is represented by B, 0.80?A/B?1.20 is satisfied. (4) The acid value is 5.0 to 40.0 mgKOH/g.

Abstract: A toner includes a toner particle, which contains at least a binding resin, a colorant, and two types of polar resins, i.e., a polar resin H and a polar resin L, and which is obtained with granulation in a water-based medium, wherein solubility parameters, glass transition points, and weight-average molecular weights of the binding resin, the polar resin H, and the polar resin L, as well as amounts of the added resins satisfy respective specific relationships.

Abstract: The present invention provides a toner that gives satisfactory fixing image quality in both high-speed fixing process and low-speed fixing process and shows excellent image quality for a long time by inhibiting inside contamination even in repeated use. In a toner including toner particles containing a binder resin, a hydrocarbon wax, and a coloring agent, the hydrocarbon wax is prescribed by a relationship in total amounts of components having carbon atoms in specific ranges in thermal desorption and GC/MS analysis when heated at 200° C. for 10 minutes.

Abstract: To provide a toner having a superior developing performance while preventing any fixing assembly from being contaminated, the toner has toner particles which have toner base particles containing at least a binder resin, a colorant and a wax, and an inorganic fine powder, wherein the wax has a 0.2% by mass heating loss temperature of 200° C. or more and a 1.0% by mass heating loss temperature of 250° C. or more and has a melt viscosity at 120° C. of from 3.0 mPa·s to 15.0 mPa·s.

Abstract: A toner is provided which has toner particles and an inorganic fine powder; the toner particles being obtained by suspension polymerization using a specific polar resin. The toner is a toner in which; where, in displacement levels found in a micro-compression test in which a force is applied to a toner single particle at a loading rate of 9.8×10?6 N/sec to measure a displacement level (?m) at a point of time where the force has reached a maximum force of 4.90×10?4 N, the displacement level of the toner at a measurement temperature of 25° C. is represented by X(25) and the displacement level of the toner at a measurement temperature of 50° C. by X(50), and the number average particle diameter of the toner is represented by D (?m), the X(25), X(50) and D satisfies the relations: 0.10?X(25)/D?0.35??(1) 30?[X(50)?X(25)]/X(25)×100?150??(2).

Abstract: A toner including toner particles containing at least a binder resin and a colorant. The binder resin is a vinyl-based resin. The toner contains a THF insoluble matter in a quantity of 0.0 mass % or more to less than 16.0 mass %. The toner has a main peak in a molecular weight domain Dr1 ranging from 5,000 to 80,000 in measurement of THF soluble matter of the toner with a gel permeation chromatogram (GPC)-differential refractive index detector (RI), and the toner has a main peak in a molecular weight domain Dm1 ranging from 10,000 to 120,000 and at least one peak in a molecular weight domain Dm2 ranging from 300,000 to 7,000,000 in the GPC-RI measurement in measurement with a GPC-multi-angle laser light scattering detector (MALLS).

Abstract: A toner including toner particles containing at least a binder resin and a colorant. The binder resin is a vinyl-based resin. The toner contains a THF insoluble matter in a quantity of 0.0 mass % or more to less than 16.0 mass %. The toner has a main peak in a molecular weight domain Dr1 ranging from 5,000 to 80,000 in measurement of THF soluble matter of the toner with a gel permeation chromatogram (GPC)-differential refractive index detector (RI), and the toner has a main peak in a molecular weight domain Dm1 ranging from 10,000 to 120,000 and at least one peak in a molecular weight domain Dm2 ranging from 300,000 to 7,000,000 in the GPC-RI measurement in measurement with a GPC-multi-angle laser light scattering detector (MALLS).

Abstract: A non magnetic toner comprises toner particles each containing at least a binder resin, a colorant and a wax component. The toner further comprises an inorganic fine powder. A storage elastic modulus at 110° C. (G?110) of the non magnetic toner is in a range of 2.00×104 to 2.00×105 dN/m2. A storage elastic modulus at 150° C. (G?150) of the non magnetic toner is in a range of 3.00×103 to 2.00×104 dN/m2. The toner particles are obtained by dispersing a polymerizable monomer composition containing polymerizable monomers, the colorant, the wax component and a low-molecular weight polymer into an aqueous medium, granulating the dispersed polymerizable monomer composition, and polymerizing the polymerizable monomers in granulated particles. The low-molecular weight polymer has a weight average molecular weight (Mw) measured by means of gel permeation chromatography (GPC) in a range of 2000 to 5000.

Abstract: In a chart of molecular weight distribution measured of a toner, i) the toner has a main peak in the region of molecular weight of 16,000 to 60,000, and ii) where the molecular weight at the main peak is represented by M1, and where the height at the molecular weight M1 is represented by H(M1), the height at a molecular weight of 4,000 by H(4000) and the height at a molecular weight of 15,000 by H(15000), the H(4000), the H(15000) and the H(M1) satisfy a specific proportion. The toner has a weight-average molecular weight (Mw) of 15,000 to 80,000, and, in an endothermic chart, i) the toner has an endothermic main peak in the range of 40 to 130° C., and ii) the calorimetric integral value represented by the peak area of the endothermic main peak is 10 to 35 J per 1 g of the toner.

Abstract: A toner includes toner particles each containing a binder resin, a colorant, and a carboxy-containing styrene-based resin, in which the toner particles are produced in an aqueous medium, each of the toner particles has a styrene-acrylic-based resin component content of 50.0% by mass or more, cyclohexane-insoluble matter A obtained by subjecting the toner to Soxhlet extraction with cyclohexane for 4 hours is 70.0% by mass or more, and cyclohexane-insoluble matter B obtained by subjecting the toner to Soxhlet extraction with cyclohexane for 24 hours is 40.0% by mass or less, and wherein when the z-average molecular weight and the weight-average molecular weight of tetrahydrofuran-soluble matter of the carboxy-containing styrene-based resin determined by gel permeation chromatography measurement are represented by Mz and Mw, respectively, Mz and Mw satisfy the following expressions: 10,000?Mw?30,000, and 1.62?Mz/Mw?5.00.

Abstract: A toner includes a toner particle, which contains at least a binding resin, a colorant, and two types of polar resins, i.e., a polar resin H and a polar resin L, and which is obtained with granulation in a water-based medium, wherein solubility parameters, glass transition points, and weight-average molecular weights of the binding resin, the polar resin H, and the polar resin L, as well as amounts of the added resins satisfy respective specific relationships.

Abstract: A toner is provided which has toner particles and a fine silica powder mixed by external addition to the toner particles. The toner has a weight average particle diameter of 4.0 to 9.0 ?m. The fine silica powder is subjected to hydrophobic treatment with dimethylsilicone oil, and has, in particle size distribution based on volume, a peak at which cumulative frequency is largest, in the measurement range of 0.02 ?m to 1,000.00 ?m; the cumulative frequency of 0.10 ?m to less than 1.00 ?m being 7.0% or less, and, the fine silica powder fulfills the following conditions: 1) A+B?93.0; 2) 0.45?A/B?6.00; and 3) the value of [(carbon content of the treated fine silica powder)/(BET specific surface area of fine silica powder before hydrophobic treatment)] is 0.030 or more to 0.055 or less.

Abstract: A toner is provided which has toner particles and a fine silica powder mixed by external addition to the toner particles. The toner has a weight average particle diameter of 4.0 to 9.0 ?m. The fine silica powder is subjected to hydrophobic treatment with dimethylsilicone oil, and has, in particle size distribution based on volume, a peak at which cumulative frequency is largest, in the measurement range of 0.02 ?m to 1,000.00 ?m; the cumulative frequency of 0.10 ?m to less than 1.00 ?m being 7.0% or less, and, the fine silica powder fulfills the following conditions: 1) A+B?93.0; 2) 0.45?A/B?6.00; and 3) the value of [(carbon content of the treated fine silica powder)/(BET specific surface area of fine silica powder before hydrophobic treatment)] is 0.030 or more to 0.055 or less.

Abstract: An object of the present invention is to provide a toner excellent in fixing ability and developing ability.

Abstract: In a chart of molecular weight distribution measured of a toner, i) the toner has a main peak in the region of molecular weight of 16,000 to 60,000, and ii) where the molecular weight at the main peak is represented by M1, and where the height at the molecular weight M1 is represented by H(M1), the height at a molecular weight of 4,000 by H(4000) and the height at a molecular weight of 15,000 by H(15000), the H(4000), the H(15000) and the H(M1) satisfy a specific proportion. The toner has a weight-average molecular weight (Mw) of 15,000 to 80,000, and, in an endothermic chart, i) the toner has an endothermic main peak in the range of 40 to 1300C, and ii) the calorimetric integral value represented by the peak area of the endothermic main peak is 10 to 35 J per 1 g of the toner.

Abstract: A toner is provided which is excellent in low-temperature fixability and offset resistance, has a wide fixing temperature range, provides fixed images with high gloss, and can form toner images having high quality. The toner is composed of toner particles having toner base particles each containing a binder resin and a colorant. When the viscosities of each of the toner particles measured at 100° C. and 110° C. by a flow tester heat-up method are represented by ?100 (Pa·s) and ?110 (Pa·s), respectively, an average variation in viscosity A?T represented by the following equation (1) satisfies the relationship of 0?A?T??0.064: A?T=(log(?110)?log(?100)/(110?100); and??(1) ?100 is 15,000 to 40,000 Pa·s.