Abstract: An image forming method comprising steps of forming a toner image by developing by a toner a latent image on a photoreceptor comprised of a layer formed on a substrate, transferring the toner image onto a recording medium on which the toner image is recorded and fixing, wherein the average circular degree of the toner is not less than 0.94, and the toner contains a wax comprising an ester of a carboxylic acid having carbon atoms of not less than 16 or an ester of an alcohol having carbon atoms of not less than 16, and the layer is a layer to be contacted to the toner in the developing step and contains an inorganic fine particles having a number average of primary particle diameter of approximately not less than 1 nm and less than 100 nm.

Abstract: A toner composition including toner particles including at least a binder resin; and a colorant, wherein the toner composition satisfies at least one of the following relationships (1) and (2): B?14 when 155<A?180; and B?0.6A?79 when 145?A?155,??(1) wherein A represents a shape factor SF-1 of the toner composition and B represents a content of toner particles having a particle diameter not greater than 3 ?m; and B?14 when 0.920?A??0.950; and B?394?400A? when 0.950<A??0.965??(2) wherein A? represents an average circularity of the toner composition and B represents a content of toner particles having a particle diameter not greater than 3 ?m.

Abstract: There are provided a toner that allows prevention of environmental contamination and is nevertheless free from toner durability degradation, wherein a sufficiently wide color reproduction range can be secured even when it is applied to color toner, and variation in characteristics among toner particles can be suppressed, as well as a method of manufacturing a toner, a developing device, and an image forming apparatus. In the toner particle is formed the biomass resin-containing domain.

Abstract: A toner composition including toner particles including at least a binder resin; and a colorant, wherein the toner composition satisfies at least one of the following relationships (1) and (2): B?14 when 155<A?180; and B?0.6A?79 when 145?A?155,??(1) wherein A represents a shape factor SF-1 of the toner composition and B represents a content of toner particles having a particle diameter not greater than 3 ?m; and B?14 when 0.920?A??0.950; and B?394?400A? when 0.950<A??0.965??(2) wherein A? represents an average circularity of the toner composition and B represents a content of toner particles having a particle diameter not greater than 3 ?m.

Abstract: in a toner at least containing a binder resin and a colorant, a value obtained by dividing a particle size D50p by a particle size D84p is 1.43 or more and 1.64 or less, wherein D50p and D84p respectively represent particle sizes at 50% and 84% of cumulative number counted from a large-size side in a cumulative number distribution. Further, in the toner, an average degree of circularity of toner particles having a volume average particle size of 1 ?m or more and 4 ?m or less is 0.940 or more and 0.960 or less. Further, in the toner, a content of toner particles having an average degree of circularity of 0.850 or less is 10% by number or less among the toner particles having a volume average particle size of 1 ?m or more and 4 ?m or less.

Abstract: A toner for development of electrostatic images, comprising colored particles and an external additive, wherein the colored particles has a volume average particle diameter of 3 to 10 ?m and an average circularity of 0.950 to 0.995, and in a molecular weight distribution of THF-soluble matter, which is obtained by filtering a dispersion liquid prepared by stirring the toner in THF, by GPC measurement, a peak area a of a molecular weight range of 500,000 to 5,000,000 is 5 to 15% based on the peak area of the whole range, a peak area b of a molecular weight range of 500,000 to 5,000,000 of tetrahydrofuran-soluble matter, which is obtained by filtering a dispersion liquid prepared by further subjecting the above dispersion liquid to an ultrasonic treatment, is 1 to 10% based on the peak area of the whole range, and the peak area a and the peak area b satisfy the relationship of 0?a?b?5.

Abstract: A toner including toner particles including a binder resin; a colorant, a release agent, and a modified layered inorganic material in which at least part of interlayer ions is modified with an organic ion, wherein the toner includes the release agent in an amount of from 3 to 6% by weight based on the total weight of the toner, and concentration of the modified layered inorganic material in a surface portion of the toner is greater than the average concentration thereof in the toner, and wherein the toner is subjected to FTIR-ATR, the ratio (P2850/P828) of the strength of the peak at 2850 cm?1 to that of the peak at 828 cm?1, is from 0.03 to 0.10. An image forming apparatus and a process cartridge which form a toner image using the toner.

Abstract: A toner that includes toner base particles including a binder resin and a colorant, wherein the toner base particles have a surface roughness (Ra) of 18 nm to 50 nm and a standard deviation (RMS) of the surface roughness of 0.5 nm to 9.9 nm. A developer, a developing apparatus, a process cartridge, an image forming apparatus, and an image forming method can all use a developer including the toner.

Abstract: A developer for development of electrostatic images, comprising colored particles containing a binder resin, a colorant and a parting agent, and an external additive, wherein the developer has properties that a work function is at least 5.70 eV; when excitation energy (eV) in the measurement of the work function is plotted on an axis of abscissa, and a normalized photoelectron yield represented by the 0.5th power of a photoelectron yield per unit photon is plotted on an axis of ordinate, a gradient of the normalized photoelectron yield to the excitation energy is at least 15/eV; and an extraction quantity with methanol is 5.0% by weight or less, and a production process thereof.

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.

Abstract: An object of the present invention is to provide a toner having small-sized and potato-shaped particles created from multiple coherent spherical particles for excellent cleaning ability and high image quality, an image-forming method that realizes high image quality using the toner, and the like. To this end, there is provided a toner, which is produced by granulating toner materials as an organic phase comprising at least a binder resin and a colorant in an aqueous medium and has potato-shaped particles created from multiple coherent primary oil droplets of the organic phase in the aqueous medium.

Abstract: Toner includes aggregated and associated particles formed by mixing in an aqueous medium at least a resin particle dispersion in which resin particles are dispersed, a colorant particle dispersion in which colorant particles are dispersed, and a wax particle dispersion in which wax particles are dispersed and heat-treating the mixed dispersion for aggregation. The aggregated and associated particles include first particles having a capsule structure in which aggregated wax with an average particle size of greater than 1 ?m is incorporated into the resin, and second particles formed of the resin and the wax in a mixed and dispersed state. The toner can achieve oilless fixing that prevents offset without using oil while maintaining high OHP transmittance and also can eliminate spent of the toner components on a carrier to make the life longer.

Abstract: Disclosed is a toner for a developer comprising cylindrical toner particles formed of a toner composition containing at least a binder resin and a releasant as toner components, and an external additive, wherein the cylindrical toner particles have an average circularity of 0.880 or more and 0.930 or less.

Abstract: A color toner that comprises at least a binder resin, a colorant and a release agent, wherein the binder resin has at least a polyester unit and is synthesized in the presence of a tin compound as a catalyst represented by the general formula (1): (RCOO)2Sn??(1) wherein, R is an alkyl group of 5 to 15 carbon atoms. The toner is excellent in charge build-up, resistance to high temperature offset, color reproducibility and transparency.

Abstract: A toner which includes a toner material, wherein the toner satisfies the following formula: 0° C.??Tm?20° C. where ?Tm represents Tma (° C.)?Tmb (° C.), Tma (° C.) is ½ flown-out temperature of the toner by a capillary type flow tester, and Tmb (° C.) is ½ flown-out temperature of a melt kneaded mixture of the toner by the capillary type flow tester, and wherein Tma is from 130° C. to 200° C.

Abstract: An objective is to provide an electrostatic latent image developing toner exhibiting ultra-low temperature fixability together with high resolution, excellent fluidity and anti-blocking property, and excellent aging stability in a toner vessel, in which the toner is supplied into an image forming apparatus. Also disclosed is an electrostatic latent image developing toner stored in a vessel possessing an ejecting outlet, capable of fitting into an image forming apparatus, wherein the vessel has a cross-sectional area of the outlet of 0.07-2.00 cm2; the toner possesses a resin, a colorant and an external additive; the toner has a Tg of 16-44° C.; an X-ray intensity ratio of Ti/Si via fluorescent X-ray analysis of toner, is 1.0-2.5; and toner particles, and having a ratio of 2nd short axis to 1st short axis being 1.1-1.6 have an amount of 5-50% in terms of the number of particles.

Abstract: A toner for developing an electrostatic image which has a small particle size essential for attaining a high-quality image, and can output a high-quality image excellent in frictional charging property and free from scumming. The toner for developing an electrostatic image has the volume average particle diameter of 2.0 ?m to 7.1 ?m and the surface condition of the toner is in scab form.

Abstract: In an image forming apparatus containing a developing device containing a toner housed therein and feeding the toner onto a photoreceptor to form a toner image, and a cleaning blade removing the toner remaining on the photoreceptor after transferring the toner image formed on the photoreceptor to a transfer medium, a toner having a particle diameter of from 5 to 8 ?m and a degree of circularity of from 0.925 to 0.965 and having a lubricant added to a surface thereof in an amount of from 0.01 to 0.125 wt % is used, and the cleaning blade has a hardness of from 60 to 80, a 300% modulus of from 100 to 420 kg/cm2, a tear strength of from 35 to 120 kg/cm, a repulsive elasticity at 10° C. of from 10 to 50%, and a repulsive elasticity at 40° C. of from 40 to 80%.

Abstract: A toner is provided that contains a binder resin; a colorant; a release agent; and an external additive, wherein the toner has an average circularity of from 0.940 to 0.965 and a crater having a depth of from 0.02 to 0.1 ?m, and wherein the crater has an amount of the external additive larger than an average amount thereof on the toner, along with a two-component developer containing the toner and an image forming apparatus using the toner.

Abstract: The present invention relates to a process for producing a toner for electrophotography, including: (a) a step of aggregating resin particles containing a resin binder in an aqueous medium; and (b) a step of unifying the aggregated resin particles, the step (a) including: (a-1) a step of adding a monovalent salt as an aggregating agent; and (a-2) a step of adding at least one compound selected from the group consisting of alkylethersulfates represented by the formula (1): R—O—(CH2CH2O)nSO3M ??(1) wherein R is an alkyl group; n represents an average molar number of addition and is a number of more than 0 and not more than 15 (0<n?15), and M is a monovalent cation, alkylsulfates and linear alkylbenzenesulfonates. The toner of the present invention has a small particle size which is controlled with a high accuracy, and a sharp particle size distribution, and a particle shape of the toner is readily controlled even at a low temperature, and further the obtained toner exhibits a high circularity.

Abstract: The present invention provides a toner which, despite its spherical shape, makes it possible to prevent an external additive from being embedded in the toner easily or by a load generating low stress, reduce variation in image density, maintain cleaning ability and transfer ability throughout its long-term use and obtain excellent image quality, and further, provides a two-component developer, an image forming method and an image forming apparatus with the use of the toner. There is a toner including: base particles including a colorant and a resin, and hard fine particles, wherein the base particles and the hard fine particles are mixed together, and protruding portions formed of fine organic resin particles which are different in composition from a resin contained as a main component in the base particles are provided on surfaces of the base particles.

Abstract: An electrostatic latent image developing toner has an average sphericity of at least 0.94 but no more than 0.98, the particles for which the accumulated equivalent spherical diameter on a number basis is at least 90% and the sphericity is less than 0.92 account for less than 3% of the entire toner, the proportion of particles having a sphericity of at least 0.90 but less than 0.95 is at least 20% but no more than 40% of the entire toner, and a proportion of particles having a sphericity of at least 0.95 but no more than 1.00 is at least 60% but no more than 80% of the entire toner.

Abstract: A non-spherical resin particle giving a projection image viewing from at least one direction of approximately regular hexagonal shape in which each of the sides is convex to out side, wherein the particle satisfy the following formula when circumference length and the major diameter of the projection image of the non-spherical particle are each a and b, respectively, (3/?)?{a/(b×?)}?C.995, and the method for producing such the particle is characterized in that the method includes a step for forming the particle having the specific approximate hexagonal outline in a projection image viewing at least one direction by removing a swelling liquid from a swollen particle which is prepared by swelling a true-spherical particle by the swelling liquid containing a swelling agent and positioned on a substrate in a state of that the center portions of each of the adjacent three swollen particles are each positioned at each vertex of a regular triangle on a plane.

Abstract: Provided is a magnetic toner comprising magnetic toner particles each comprising at least a binder resin and a magnetic iron oxide, the magnetic toner being excellent in developability and environmental stability, and being capable of reducing a toner consumption. A saturation magnetization ?s and a remanent magnetization ?r of the magnetic toner in a measured magnetic field of 795.8 kA/m are arranged in the range of 5 to 60 Am2/kg and in the range of 0.1 to 10.0 Am2/kg, respectively, and the binder resin having a polyester component polymerized by using a Ti chelate compound as a catalyst is used.

Abstract: A dry toner contains fine particles having average sphericity of 0.93 to 0.99, a content of the fine particles having a particle diameter of 2 ?m or less in the dry toner is 20% by number or less. A method for manufacturing a dry toner includes a process for dispersing in an aqueous medium containing water and a water-soluble organic solvent, a toner composition contained in an organic solvent by using fine solid dispersing agent; and a process for contracting volume of the dispersed toner composition. Further, the image forming apparatus having a photoconductor; a charger for charging the photoconductor; a light irradiator for irradiating the electrophotographic photoconductor to form a latent electrostatic image; a developer for developing the latent electrostatic image to form a developed image; and a transfer for transferring the developed image to a recording material, and the developer contains the dry toner abovementioned.

Abstract: An image forming method, includes: forming a latent electrostatic image on a latent electrostatic image carrier; developing the latent electrostatic image with a toner to thereby form a visible image; transferring the visible image to a recording medium; and fixing the image transferred to the recording medium. The latent electrostatic image carrier includes: a support, a photoconductive layer on the support, and a surface protective layer on the support. The surface protective layer includes a reactant made by cross-linking the following: an electric charge transporting material which comprises a reactive functional group, a cross-linking resin, and a fluorine surfactant. The toner comprises an inorganic fine particle which defines an effective inorganic fine particle amount in a range of 0.8% by mass to 3.

Abstract: Disclosed is a toner comprising toner particles comprising a binding resin and a colorant, wherein the toner particles exhibit an average circularity of 0.950 to 0.980, a volume-base median diameter of 4.5 to 8.0 ?m and a volume-based particle size dispersion degree (CVvol) of 15 to 25 and contain a metal element selected from the group consisting of titanium, germanium and aluminum in an amount of 10 to 1500 ppm. A manufacturing method of the toner is also disclosed.

Abstract: A toner comprising a compound represented by the following formula: R1O(R2O)nH where R1 is an aliphatic hydrocarbon group having 10 to 22 carbon atoms or a distyrene-substituted phenyl group; R2 is an alkylene group having 2 to 6 carbon atoms; and n is an integer of 1 to 15.

Abstract: A toner composition including toner particles including a binder resin including a modified polyester resin, and a second resin having a weight average molecular weight of from 2,000 to 10,000; a colorant; a release agent; and a particulate material which is present at least a surface portion of the toner particles while embedded into the surface portion, wherein the binder resin has a glass transition temperature not lower than 35° C. and lower than 55° C., and wherein the particulate material has an average particle diameter of from 0.002 to 0.2 times that of the toner particles. A developer including the toner composition and a carrier having a layer thereon which includes at least an acrylic resin and a silicone resin, and a method for fixing an image of the toner composition are also provided.

Abstract: A toner for developing an electrostatic image is disclosed. The toner has softening point Tsp of from 90° C. to 110° C., and the toner satisfies the relation of 0.02?(Sw/S)×100?10, Sw being an area of a wax domain having largest diameter among wax domains at a cross section of the toner particle, and S being entire area of the cross section of the toner particle.

Abstract: A method for preparing a functional particulate organic material, including providing a suspension of a particulate organic material having an acid group on a surface thereof; reacting a metal cation with tri- or more-valence with the acid group; and reacting at least one of an organic acid and an organic acid salt with the metal cation. A toner prepared by the method mentioned above. An image forming method including developing a latent image with the toner; transferring the toner image on a receiving material optionally via an intermediate transfer medium, and fixing the toner image on the receiving material. A process cartridge including a developer container containing a developer including the toner mentioned above, and at least one of an image bearing member; a charger; a developing device; and a cleaner.

Abstract: To provide a toner that contains at least a binder resin, a colorant, a releasing agent and zeolite, the toner being manufactured through O/W type wet granulation and having an average circularity of 0.970 or greater, and a developer and image forming method using the toner.

Abstract: A two-component developer is provided with cylindrical toner particles and magnetic carrier particles having an average sphericity of 0.95 or more. When such a developer is used in development using a two-component developing method, a clear image can be stably obtained for a long period by suppressing a spent phenomenon and an insufficiency of cleaning.

Abstract: A toner is provided including toner particles A having a circularity of greater than 0.93 and not greater than 1.00 and toner particles B having a circularity of from 0.85 to 0.93, wherein the following relationships are satisfied: 70?RA?95, 5?RB?30, 0.014?SD?0.025, and 0.940?ED?0.950, wherein RA (% by number) represents a ratio of a number of the toner particles A to a total number of toner particles included in the toner, RB (% by number) represents a ratio of a number of the toner particles B to the total number of toner particles included in the toner, SD represents a standard deviation of circularity of the toner particles A, and ED represents an average envelope degree of the toner particles B.

Abstract: A process contains in which heating and fixing an image of a toner on a recording medium is performed by heating one or more heat-transfer media by a heating element, and pressing the recording medium bearing the toner image to one of the heat-transfer media. At least one of the heat-transfer media is a belt heat-transfer medium with or without the application of an oil whose amount is 4 mg or less per A4 size, and the toner contain a binder resin and a releasing agent, has a weight-average particle diameter Dv of 3.0 to 7.0 ?m, a particle diameter distribution Dv/Dn of 1.00 or more and 1.25 or less, wherein Dn is a number-average particle diameter, and an average shape factor SF-1 of 100 to 150 and contains toner particles having a shape factor SF-1 of 160 or more in an amount of 10% by number or less.

Abstract: A toner including a binder; a colorant; and a wax, wherein the binder includes a polyester resin; and a reaction product of a polymer having a group capable of reacting with an active hydrogen with a compound having an active hydrogen, wherein the polyester resin includes tetrahydrofuran(THF)-soluble resin components in an amount of from 50 to 85% by weight; and chloroform-insoluble components in an amount of from 0 to 30% by weight, and wherein the toner satisfies the following relationship (1): 5% by weight<(C1-C2)<60% by weight ??(1) wherein C1 represents a content of chloroform-insoluble components in the toner in units of % by weight and C2 represents a content of the colorant therein in units of % by weight.

Abstract: A toner for developing an electrostatic image, includes: a colorant; and a binder resin. The toner has a particle including at least one pore having a diameter of 10 nm or over, and a porosity thereof is in a range from 0.01 to 0.60.

Abstract: A toner container of the present invention includes a cylindrical portion containing toner used in an electrophotographic type complex machine. When the cylindrical portion is driven to rotate, the toner gets out via an outlet thereof. The cylindrical portion of the toner container has an inner wall provided with a coat layer containing fluorine-containing silica fine particles, which are obtained by modifying a property of the surfaces of silica fine particles by using a fluorine-based silane coupling agent. This coat layer effectively prevents the toner from being adhered to the inner wall of the toner container.

Abstract: There is provided an electrostatic latent image developing toner including a binder resin, a colorant, and a release agent, wherein the shape factor SF1 of the toner is within the range from 110 to 140, the volume average particle size of the toner is within the range from 1.2 ?m to 4.8 ?m, and the crystallinity of the release agent within the toner is within the range from 35 to 80. There is also provided a method for manufacturing such a toner.

Abstract: The invention provides a method for producing a toner comprising: a step of preparing a powder for production of the toner from a raw material containing a resin as a main component, a coloring agent, and a crystalline polyester having higher crystallinity than the resin as an accessory component, and a thermal conglobation step of conglobating the powder for production of the toner with heat. The invention also provides a method for producing a toner from a kneaded material obtained by kneading a raw material containing a resin and a coloring agent, wherein the resin comprises at least a first polyester resin and a second polyester resin different from the first polyester resin, and wherein when the coefficient of static friction of the first polyester resin is taken as ?1, the coefficient of static friction of the second polyester resin as ?2, the softening point of the first polyester resin as Ts1 (° C.) and the softening point of the second polyester resin as Ts2 (° C.

Abstract: A non-stick coating includes fluoropolymer and electrically conductive mica. The coating may be used on rollers in printing machines to help dissipate static electricity.

Abstract: A toner for developing an electrostatic image is disclosed. The arithmetic average of shape coefficient SF-1 of the toner particles calculated by Equation 1 is from 125 to 170 and a ratio of that to an arithmetic average of the shape coefficient SF-2 of the toner particles calculated by Equation 2, SF-1/SF-2, is from 1.10 to 1.52 and the ratio of the toner particles having a circle corresponding diameter measured by a flow particle image analyzer of from not less than 0.60 to less than 1.00 ?m is not more than 5.0% in number. The image forming methods employing the toner are also disclosed.

Abstract: A toner for an image-forming apparatus and method which apparatus has a cleaning means with a cleaning blade to remove a residual toner remaining on a surface of a photoconductive member after transfer; the toner being a mixture of a colored polymer particle and an external additive. The colored polymer particle has an average circle degree in the range of 0.95-0.995 and a volume average particle diameter in the range of 3-8 ?m. The toner has an absolute value of charge amount in the range of 20-70 ?C/g in a toner layer formed on a developing roll when the toner is used with the image-forming apparatus.

Abstract: The invention provides: an electrostatic latent image developing toner comprising a non-crystalline resin, a crystalline resin having a melting point of 50 to 100° C., and a colorant, and satisfying the relationship represented by the following formula (1), wherein A represents the content of the crystalline resin (% by mass) in the entire toner, and B represents the content of the crystalline resin (% by mass) in a classified toner which has been prepared by classifying the toner such that the volume average particle diameter thereof is in the range of (?)×D50T to (?)×D50T, wherein D50T represents the volume average particle diameter of the entire toner, and a method for producing the same, as well as an electrostatic latent image developing developer, a toner cartridge, a process cartridge, and an image forming apparatus using the same.

Abstract: A charge apparatus charges by uniformly superimposing an alternate current bias voltage with a fixed frequency over a direct current bias voltage as the charge bias voltage on a photosensitive member. An exposure apparatus exposes the surface of the charged photosensitive member based on image data, and writes a latent image, and a developing apparatus supplies toner to and makes visible the latent image formed on the surface of the photosensitive member. A transfer apparatus transfers the visible image on the photosensitive member to a transfer medium, and a cleaning apparatus cleans the surface of the photosensitive member after transfer.

Abstract: An electrophotographic developer comprising a toner and a carrier is disclosed. The contains a toner binder resin, a colorant and a releasing agent, and a carrier contains magnetic particles dispersed in a carrier binder resin, wherein the releasing agent contains a first releasing agent component of a linear-chain hydrocarbon compound having a melting point of from 50 to 100° C. in a ratio of from 10 to 95% by weight and a second releasing agent component comprising a branched-chain structure hydrocarbon compound having a melting point of from 50 to 100° C. in a ratio of from 5 to 90% by weight, and the carrier has a shape coefficient SF-1 of from 1.0 to 1.2, a shape-coefficient SF-2 of from 1.1 to 2.5 and a volume based median diameter of from 10 to 100 ?m.

Abstract: A toner comprising toner particles comprising a first binder resin; a second binder resin different from said first binder resin and having a glass transition temperature of from 40 to 55° C.; a colorant; and a release agent, and a particulate resin material which is located on surface of the toner particles with a coverage of from 50 to 100%, and which has a glass transition temperature of from 50 to 90° C., wherein a weight ratio (W2/W1) between the second binder resin (W2) and the first binder resin (W1) is from 5/95 to 40/60, and wherein a ratio (G?80/G?180) between a storage modulus of the toner at 80° C. (G?80) and a storage modulus at 180° C. (G?180) is from 100 to 1,000.

Abstract: A toner for developing an electrostatic image comprising toner particles which include a binder resin, a wax and a colorant, wherein the wax has a melting point of between 50 and 150° C., the wax exists in the toner particles in domains of 2 ?m or less mean particle size and (a) the mean circularity of the toner particles as measured by a Flow Particle Image Analyser is at least 0.90; and (b) the shape factor, SF1, of the toner particles is at most 165. A process for the manufacture of said toner which comprises the following steps: providing a latex dispersion; providing a wax dispersion; providing a colorant dispersion; mixing the latex dispersion, wax dispersion and colorant dispersion; and causing the mixture to flocculate.

Abstract: A toner, which is semispherical and has plural dents on the surface, including a binder resin; and a pigment, wherein a circle circumscribing a circular profile of the toner provides an average envelopability (AE) of 10 to 10,000 particles thereof of from 74 to 84%, which is measured by the following formula: AE(%)=(AC?AD)/AC×100 wherein AC is an area of the circle and AD is a total sum of areas of the dents.

Abstract: To provide a toner that can provide long-term removability and high-definition images with reduced image layer thickness and densely-packed toner particles, a developer capable of forming high-quality images using the toner, a toner container for containing the toner, a process cartridge using the toner, an image forming apparatus using the toner, and an image forming method using the toner. The toner of the present invention is a toner having a substantially spherical shape with irregularities on its surface and containing at least a binder resin and a colorant, wherein a surface factor SF-1 that represents the sphericity of toner particles is 105 to 180, a surface factor SF-2 that represents the degree of surface irregularities of the toner particles is correlated with the volume-average diameter of the toner particles, and the toner particles have an inorganic oxide particle-containing layer within 1 ?m from their surfaces.