Abstract: A method for manufacturing a capsule toner, capable of obtaining a capsule toner including a coating layer having uniform thickness at high yield is provided. The method for manufacturing a capsule toner includes a fine resin particle adhering step of adhering fine resin particles to surfaces of toner base particles, a spraying step of spraying a spray liquid for plasticizing the toner base particles and the fine resin particles, while fluidizing the toner base particles and the fine resin particles, and a film-forming step of fluidizing the toner base particles and the fine resin particles until the fine resin particles adhered to the surfaces of the toner base particles are softened to form a film. In the spraying step, ultrasonic vibration is applied to set a number average liquid-droplet diameter of the spray liquid to less than 10 ?m.

Abstract: Colored resin particles, each includes: a resin; and a colorant, wherein a value of average equivalent circle diameter A (?m) of the colored resin particles is 3?A?6, an average degree of circularity B of the colored resin particles satisfies the following expression (1), and 0.990?0.0083A?B?1.021?0.0117A??(1) a cumulative number frequency of particles which have degrees of circularity of less than 0.9 in the colored resin particles is 1% or less.

Abstract: The present disclosure provides processes for preparing toner particles, in which fewer coarse particles are generated. The process includes introducing a buffer solution during coalescence of the toner slurry. The amount of coarse particles in the resulting toner particles may, in embodiments, be reduced to less than about 5 percent by weight of the total toner particles generated.

Abstract: A compound that includes an aqueous dispersion, wherein the dispersion includes a thermoplastic resin and at least one stabilizing agent, and at least one selected from the group consisting of a colorant and a magnetic pigment, wherein the dispersion has an average volume diameter particle size from about 0.05 to about 10 microns is described.

Abstract: A method for regenerating a carrier core material for electrophotography, including: treating a carrier for electrophotography including a carrier core material for electrophotography and a coating layer on a surface of the carrier core material for electrophotography with an aqueous solution including an oxidant in a subcritical state or a supercritical state having a temperature of 280° C. or greater and a density of 0.20 g/cm3 or greater, wherein an amount of the oxidant in a total amount of the aqueous solution used in the treating is greater than 0.05 parts by mass with respect to 1 part by mass of the carrier for electrophotography to be treated in the treating.

Abstract: Provided is a method of preparing a toner, the method including: preparing a solvent emulsion by stirring a medium including a polar medium, an organic solvent, and a surfactant; adding toner components including a resin and a pigment to the solvent emulsion; removing the organic solvent from the solvent emulsion including the toner components; and collecting a toner particle from the solvent emulsion from which the organic solvent is removed.

Abstract: A capsule toner achieving both low temperature fixability and hot offset resistance, and a method of manufacturing the capsule toner are provided. A capsule toner includes a toner base particle containing a binder resin and a colorant, and a resin coating layer formed on a surface of the toner base particle. The resin coating layer includes a film of plural fine resin particles having different complex viscosities. The plural fine resin particles include first fine resin particles having complex viscosity at a softening temperature of the toner base particles of 5.0×102 Pa·s or more and 1.0×103 Pa·s or less, and second fine resin particles having complex viscosity at a softening temperature of the toner base particles of 1.0×104 Pa·s or more and 1.0×105 Pa·s or less.

Abstract: The toner includes a binder resin; a release agent; a colorant; and a dispersing resin configured to disperse the release agent. The dispersing resin includes a polyhydroxycarboxylic acid unit obtained from an optically active monomer. The polyhydroxycarboxylic acid unit has an optical purity of not greater than 80%, wherein the optical purity is defined as the absolute value of difference between the mole percentage of a L-monomer in the optically active monomer and the mole percentage of a D-monomer in the optically active monomer.

Abstract: The present invention provides a process for producing a colored toner having a textured surface, the process includes forming a polymer composition of at least one polymer and a colorant, where the at least one polymer has a softening temperature from about 60° C. to about 160° C.; forming an aqueous mineral suspension of at least one multivalent metal phosphate; forming a dispersion by combining the polymer composition and the aqueous mineral suspension under agitation to form a solid portion comprising dispersed particles of the polymer composition; heating the dispersion to a temperature above a glass transition temperature (Tg) of the polymer composition and increasing the pH to above 7.0; cooling the dispersion including the dispersed particles of the polymer composition to a temperature of from about 1° C. to about 89° C.; and recovering the particles.

Abstract: A toner capable of ensuring cleanness and the amount of specific charge for extended periods of time and having excellent charge stability and fixing property, a two-component developer, a developing device and an image forming apparatus are provided. A toner includes toner particles containing at least a binding resin and a coloring agent, and fine silicon-containing oxide particles having an average primary particle size of not smaller than 70 nm but not larger than 150 nm and containing water in an amount of not larger than 2.0% by weight, the fine silicon-containing oxide particles being externally added to the toner particles.

Abstract: A method of manufacturing toner is provided. In the method, toner constituents are dissolved or dispersed in an organic solvent to prepare a toner constituents liquid. The toner constituents liquid is degassed so that the toner constituents liquid includes dissolved oxygen in an amount of 3 mg/L or less. The toner constituents liquid is vibrated in a chamber having at least one nozzle to form a liquid column resonance standing wave in the toner constituents liquid. The toner constituents liquid is discharged from the nozzle disposed within an area including an antinode of the liquid column resonance standing wave to form the toner constituents liquid into liquid droplets. The liquid droplets are dried to solidify the liquid droplets into solid particles.

Abstract: A toner including: a core particle; and fine resin particles, the core particle containing at least a binder resin, a releasing agent and a colorant, wherein the toner is in shape of particles, and each toner particle has a sea-island structure having the core particle and island portions, which are convex portions formed from the fine resin particles on surface of the core particle, wherein the binder resin contains first and second resins, and the fine resin particles are made of third resin, wherein the first resin is crystalline resin, and the second and third resins are non-crystalline resin, wherein the second resin has glass transition temperature (Tg2) and the crystalline resin has melting point (Tc1) where Tg2 is higher than Tc1, and wherein the third resin has glass transition temperature (Tg3) and the toner has glass transition temperature (Tgt) wherein Tg3 is higher than Tgt.

Abstract: There is provided a method for producing a resin particle capable of unprecedentedly realizing both excellent heat resistant keeping property and melting property. The present invention is a method for producing a resin particle (X) comprising the step of treating a resin particle (B) containing a resin (A) composed of a crystalline part (a) containing, as an essential constitutional component, a polyester (p1) not containing an aromatic ring or a polyester (p2) containing an aromatic ring, and produced by polycondensation of a polyol component and a polycarboxylic acid component, and a noncrystalline part (b), with liquid or supercritical carbon dioxide (C), and removing (C), wherein a heat of fusion measured by differential scanning calorimetry (DSC) of the obtained (X) satisfies the following relational formula (1): 0?H2/H1?0.

Abstract: There is provided a method for producing a resin particle capable of unprecedentedly realizing both excellent heat resistant keeping property and melting property. The present invention is a method for producing a resin particle (X) comprising the step of treating a resin particle (B) containing a resin (A) composed of a crystalline part (a) containing, as an essential constitutional component, a polyester (p1) not containing an aromatic ring or a polyester (p2) containing an aromatic ring, and produced by polycondensation of a polyol component and a polycarboxylic acid component, and a noncrystalline part (b), with liquid or supercritical carbon dioxide (C), and removing (C), wherein a heat of fusion measured by differential scanning calorimetry (DSC) of the obtained (X) satisfies the following relational formula (1): 0?H2/H1?0.

Abstract: A toner comprising: a component consisting of a thermoplastic resin containing an amorphous plant-derived resin having a carboxyl group; a component consisting of a crystalline epoxy resin having a glycidyl group; a component consisting of a cross-linked resin generated through a reaction between the carboxyl group of the plant-derived resin and the glycidyl group of the crystalline epoxy resin; and a colorant.

Abstract: Disclosed is a toner obtained by coating surfaces of core particles including at least a binder resin having a carboxyl group and a coloring agent with successive coatings of a water-soluble crosslinking agent capable of crosslinking with a carboxyl group and a water-soluble polymer having a carboxyl group, which have been successively applied on the core particles and crosslinked with each other. The thus-formed toner is provided with a good harmony of favorable fixability represented by a low lowest fixable temperature and favorable storage stability represented by little aggregation after standing at 50° C. for 8 hours.

Abstract: A toner obtained by a method for producing a toner, which includes dissolving or dispersing in an organic solvent a toner material containing at least a binder resin, and a dispersion liquid of a crystalline polyester resin, so as to prepare a solution or dispersion liquid of the toner material, emulsifying or dispersing the solution or dispersion liquid of the toner material in an aqueous medium, so as to prepare an emulsion or dispersion liquid, and removing the organic solvent from the emulsion or dispersion liquid, wherein the crystalline polyester resin is localized near a surface of the toner.

Abstract: Provided is a toner for an electrostatic charge image development having toner particles which contain: a binder resin; a colorant; and a compound represented by Formula (1) in an amount of 0.1 to 65 ppm based on the total weight of the toner particles: wherein R1 and R2 each respectively represents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or an aryl group.

Abstract: Compounds and methods of forming compounds useful as a toner or toner precursor are disclosed. The compounds may include an aqueous dispersion, the dispersion including: (A) at least one thermoplastic resin; and (B) 0 to 5 weight percent of a stabilizing agent, based on the total weight of (A) and (B). The dispersion may have an average volume diameter particle size from about 0.05 to about 10 microns. A combined amount of the thermoplastic resin and the stabilizing agent may have an acid number of less than 25 mg KOH/g.

Abstract: A method of manufacturing a toner including manufacturing a coarse toner containing a binder resin and a coloring agent, and screening the coarse toner with a screen device including a top screen having an opening of from 26 to 43 ?m and a bottom screen situated below the top screen having an opening of from 54 to 150 ?m to screen the coarse toner with the top screen by ultrasonic vibration and mechanical vibration at 50° C. or lower, and with the bottom screen by mechanical vibration at 35° C. or lower.

Abstract: Spherical-shaped liquid droplets are made by dispersing oil phase containing: a resin with an acid group, a first hydrophobic solvent effecting dissolution of the resin, a colorant, and a charge control agent which is positively charged in an aqueous dispersion medium in the presence of a base; and the liquid particles are solidified to be solid particles by removing the first solvent from the liquid droplets. The solid particles obtained in this manner are washed with a second solvent. As the second solvent, a solvent which dissolves the charge control agent and but does not dissolve the resin such as alcohol is selected. Accordingly, the charge control agent in the solid particles are made to elute to the outer surface layer of the solid particles, thereby improving the positive chargeability of the solid particles.

Abstract: The present disclosure provides for oscillatory flow continuous reactors suitable for use in forming emulsion aggregation toners. The reactor may include at least one receptacle being a flexible, tubular member. The reactor may also include a plurality of baffles disposed, at spaced apart intervals, along an interior space of the tubular member, each of the plurality of baffles including one or more orifices. Additionally, one or more fluids may flow through the tubular member. The oscillatory flow continuous reactor may be used in an emulsion aggregation process to produce toner particles.

Abstract: The present disclosure provides processes for producing toner particles, and toner particles produced by such processes. The processes of the present disclosure combine melt-mixing and grinding of toner components to produce toner particles, followed by a coalescing treatment which provides toner particles having desirable spherical properties.

Abstract: A process for making a latex emulsion suitable for use in a toner composition includes contacting at least one crystalline polyester resin with an organic solvent to form a resin mixture, adding a neutralizing agent, and deionized water to the resin mixture, removing the solvent from the formed latex, and continuously recovering latex particles.

Abstract: The invention provides a toner composition comprising resin particles, a colorant, and a toner additive, wherein the toner additive comprises carbon-silica dual phase particles, wherein the carbon-silica dual phase particles comprise aggregates of carbon black comprising at least one silicon-containing region, and wherein the carbon-silica dual phase particles are distributed on the surface of the resin particles. The invention also provides a method of preparing the aforesaid toner composition.

Abstract: A method and an apparatus for producing toner are provided. A fluid comprising a resin and a colorant is supplied to a retention member that includes a film on which multiple discharge openings are formed. The fluid which is supplied to the retention member is resonated so that liquid droplets thereof are discharged from the multiple openings. The liquid droplets which are discharged from the multiple openings are solidified to form mother particles of a toner.

Abstract: A compound that includes an aqueous dispersion, wherein the dispersion includes a thermoplastic resin and at least one stabilizing agent, and at least one selected from the group consisting of a colorant and a magnetic pigment, wherein the dispersion has an average volume diameter particle size from about 0.05 to about 10 microns is described.

Abstract: A toner for developing an electrostatic charge image includes: an amorphous polyester resin; a crystalline polyester resin; and a releasing agent, an amount of the releasing agent in the toner being from 5 to 15% by weight; an amount of the releasing agent present at a surface of the toner being from 10 to 35% by weight; and the toner showing at least one endothermic peak in each of a temperature range from 45 to 60° C., a temperature range from 65 to 80° C., and a temperature range from 85 to 100° C. in a temperature-rise process of differential scanning calorimetry of the toner.

Abstract: A non-magnetic toner, including a binder resin; a wax present dispersing in the toner in the shape of a particle; and a colorant, wherein the wax having a particle diameter not less than 2.0 ?m and less than 3.0 ?m is not less than 20% and less than 40% by number based on total number thereof; the wax has a mode value not less than 1.5 ?m and less than 2.0 ?m in a frequency distribution of 0.1 ?m width; and the following relationship is satisfied: 45<XZ/Y<62 wherein X represents a softening point (° C.) of the toner; Y represents a volume-average particle diameter (?m) of the toner; and Z represents a total parts by weight of the wax included in 100 parts by weight of the toner.

Abstract: A method of preparing a toner, including periodically discharging a toner constituent liquid from plural nozzles having the same aperture diameter with a mechanical oscillator, wherein the toner constituent liquid includes: a binder resin, a colorant, and an organic solvent, wherein the binder resin and the colorant are dissolved or dispersed in the organic solvent; forming a droplet of the toner constituent liquid in a gas phase; and solidifying the droplet, wherein the aperture diameter is from 3 to 30 ?m, and the binder resin has a ratio (Mw/Mn) of a weight-average molecular weight (Mw) to a number-average molecular weight (Mn) of THF (tetrahydrofuran)-soluble components therein of from 1.5 to 15 in a molecular weight distribution measured by GPC (gel permeation chromatography), and a ½ flow temperature (Tm) of from 114 to 149° C.

Abstract: The present disclosure relates to a magenta toner formulation that may be used in a toner printer cartridge for an electrophotographic printer. The magenta toner may include polymer resin binder containing three polymer resins with different number average molecular weight values. The concentration of such polymer resins may be selected to provide a desired temperature versus viscosity behavior for the magenta toner that may be configured to conform to the viscosity versus temperature provide for yellow, cyan and black toner.

Abstract: Environmentally friendly latex particles are provided which include a gelling agent and a pigment encapsulated in an amorphous resin which may be utilized in forming EA super low melt toners. Methods for providing these resins and toners are also provided.

Abstract: There is provided a method for producing a resin particle capable of unprecedentedly realizing both excellent heat resistant keeping property and melting property. The present invention is a method for producing a resin particle (X) comprising the step of treating a resin particle (B) containing a resin (A) composed of a crystalline part (a) containing, as an essential constitutional component, a lactone ring-opening polymer (p), and a noncrystalline part (b), with liquid or supercritical carbon dioxide (C), and removing (C), wherein a heat of fusion measured by differential scanning calorimetry (DSC) of the obtained (X) satisfies the following relational formula (1): 0?H2/H1?0.9??(1) [in the relational formula (1), H1 represents a measurement value of a heat of fusion (J/g) at the time of the initial temperature elevation measured by DSC; and H2 represents a measurement value of a heat of fusion (J/g) at the time of the second temperature elevation measured by DSC].

Abstract: A method for manufacturing a toner includes a pre-mixing step and a coating step. In the pre-mixing step, a secondary aggregate of the fine resin particles is disaggregated, while toner base particles and fine resin particles are mixed and stirred using a rotary stirring apparatus. Thus obtained disaggregated fine resin particles are fixed to the surface of the toner base particle. Thus, a fine resin particle-fixed toner is obtained. The rotary stirring apparatus includes a rotary stirring section, a temperature regulation section, a circulating section, and a spraying section. In the coating step, a liquid is sprayed to the fine resin particle-fixed toner with the spraying section using the rotary stirring apparatus. Thus, a film of the fine resin particles is formed. In the pre-mixing step and the coating step, temperature regulation is conducted in the temperature regulation section.

Abstract: A method of manufacturing toner includes forming liquid droplets. The forming liquid droplets includes vibrating a toner constituents liquid in a liquid column resonance liquid chamber having a plurality of nozzles to form a liquid column resonance pressure standing wave therein, and discharging the toner constituents liquid from the nozzles. The method further includes solidifying the liquid droplets. The toner constituents liquid includes an organic solvent and toner constituents dissolved or dispersed in the organic solvent. The toner constituents include a resin, a colorant, and a release agent. The nozzles are disposed within an area including an antinode of the liquid column resonance pressure standing wave. One of the nozzles disposed closer to a node of the liquid column resonance pressure standing wave has a smaller outlet diameter than that disposed farther from the node. The toner constituents liquid is applied with a uniform pressure at a vicinity of each nozzle.

Abstract: The particulate material production method includes vibrating a particulate material composition liquid in a liquid column resonance chamber having at least one nozzle to form a standing wave in the particulate material composition liquid caused by liquid column resonance, so that droplets of the particulate material composition liquid are ejected in a droplet ejection direction from the nozzle so as to fly in a space in a flight direction; feeding a gas in a direction substantially perpendicular to the droplet ejection direction to change the flight direction of the ejected droplets; and solidifying the droplets in the space to produce a particulate material. The particulate material composition liquid includes at least a solvent and a component of the particulate material dissolved or dispersed in the solvent, and the nozzle is located at a location corresponding to an anitnode of the standing wave.

Abstract: A method of manufacturing toner is provided. The method includes preparing a toner constituents liquid by dissolving or dispersing toner constituents in an organic solvent. The toner constituents includes a binder resin and a charge controlling agent. The charge controlling agent includes a polycondensation product of a phenol with an aldehyde. The method further includes forming a liquid column resonance standing wave in the toner constituents liquid in a chamber having at least one nozzle by vibrating the toner constituents liquid. The method further includes forming the toner constituents liquid into liquid droplets by discharging the toner constituents liquid from the nozzle. The nozzle is disposed within an area including antinodes of the liquid column resonance standing wave. The method further includes removing the organic solvent from the liquid droplets to solidify the liquid droplets.

Abstract: Provided is a toner including: toner particles each containing at least a binder resin and a wax; and an external additive, in which surfaces of the toner particles have an average surface roughness (Ra) measured with a scanning probe microscope of 1.0 nm or more and 30.0 nm or less; and the toner has a surface tension index I for a 45-vol % aqueous solution of methanol measured by a capillary suction time method and calculated from the following equation (1) of 5.0×10?3 N/m or more and 1.0×10?1 N/m or less: I=P?/(A×B×106)??Eq. (1) where I represents the surface tension index (N/m) of the toner, P? represents a capillary pressure (N/m2) of the toner for the 45-vol % aqueous solution of methanol, A represents a specific surface area (m2/g) of the toner, and B represents a true density (g/cm3) of the toner.

Abstract: Disclosed is a process for preparing toner particles which comprises: (a) selecting a carbon black; (b) measuring the surface level of sulfur of the carbon black by X-ray Photoelectron Spectroscopy to ensure that the surface level of sulfur is no more than about 0.05 atomic percent; and (c) mixing the carbon black with a resin to generate a toner composition.

Abstract: A process for making a latex emulsion suitable for use in a toner composition includes co-emulsifying a bio-based resin with an insoluble component, such as a pigment or wax, whereby the resin encapsulates the insoluble component. The resulting latex, including the insoluble component encapsulated in the resin, may then be utilized to form a toner. The insoluble component may thus be included in toner particles, which might otherwise be difficult to achieve, using emulsion aggregation processes.

Abstract: The present disclosure provides methods for modifying polymeric resin materials after polymerization to make fine adjustments in the chemical or physical properties of the resin, or in modifying the structure of the polymer chains. The resulting resins may be useful in forming toner particles. In embodiments, a polymeric resin may have epoxy groups added to its backbone to increase its melting point. The resulting polymer, sometimes referred to herein as an epoxidized polymer, may, in turn, be reacted with wax-like components, to increase the compatibility of the polyester with waxes utilized in forming toner particles. In other embodiments, the resulting epoxidized polymer may be reacted with components possessing carboxylic acid groups to adjust the acid value and weight average molecular weight of the resin.

Abstract: Provided is a method of manufacturing an electrostatic charge image developing toner exhibiting reduced variation in charging amount among manufacturing lots, which is capable of generating no fog, and acquiring high density print images. Disclosed is a method of manufacturing an electrostatic charge image developing toner, possessing the step of washing toner mother particles having been formed in an aqueous medium with washing water, wherein the washing water has a total dissolution component amount of at least 0.05 mg/liter and less than 0.5 mg/liter.

Abstract: In accordance with the invention, there is a method of forming a toner. The method can include blending two or more colorants to form a sample toner and forming a sample color specimen including a printed image comprising the sample toner. The method can further include comparing spectral distribution curves of the sample color specimen with that of a target color specimen including a target color and repeating the disclosed steps until acquiring a desired spectral match between the sample toner and the target color.

Abstract: A toner including a main body particle, a layer B located overlying the main body particle, and a layer A located overlying the layer B is provided. The binder resin includes an amorphous resin and a crystalline resin. The layer B is comprised of particles of a resin B. The layer A is comprised of particles of a resin A. A method of manufacturing the above toner is also provided. The method includes dissolving or dispersing toner components in an organic solvent to prepare a toner components liquid. The toner components include the binder resin. The method further includes emulsifying the toner components liquid in an aqueous medium to prepare an emulsion. The aqueous medium contains the particles of the resins A and B. The method further includes removing the organic solvent from the emulsion and heating the emulsion.

Abstract: Disclosed is a binder resin for a toner containing at least a carboxyl group-containing vinyl resin (C), a glycidyl group-containing vinyl resin (E), a reaction product of the vinyl resins and a saturated crystalline polyester (S), wherein the saturated crystalline polyester (S) has a predetermined melting point and a predetermined metal component (M), and the binder resin for a toner has a predetermined loss modulus (G?) and a predetermined storage modulus (G?).

Abstract: Provided is a method for producing a toner having excellent particle size distribution and storage stability. The method set forth in the present specification is a method for producing a toner by aggregating and fusing base microparticles whose main component is a binder resin including anionic groups, wherein an aggregate is produced by aggregating the base microparticles in a base microparticle suspension, in a presence of a non-ionic surfactant such that a surface tension of an aqueous solution thereof is not lower than 45 mN/m at any concentration at or above a critical micelle concentration, and the toner is produced through fusion of the aggregate. According to this method, drops in a glass transition temperature of the toner can be curbed, and the toner having excellent storage stability and good particle size distribution can be obtained.

Abstract: A method for producing a toner including periodically forming and discharging liquid droplets of a toner composition liquid containing at least a resin, a releasing agent and a colorant from a plurality of nozzles formed in a thin film which is provided in a reservoir for the toner composition liquid, by vibrating the thin film using a mechanically vibrating unit, and forming toner particles by solidifying the liquid droplets, wherein the forming toner particles comprises primarily drying the liquid droplets under a stream of dry gas containing an organic solvent whose partial pressure is equal to or higher than 1/10 of a saturated vapor pressure thereof but is equal to or lower than the saturated vapor pressure, the saturated vapor pressure being that at a drying temperature; and secondarily drying the primarily dried liquid droplets for solidification while the organic solvent is being evaporated.

Abstract: A particle producing method is provided including bringing a material into contact with a compressible fluid to prepare a melt of the material, and discharging the melt from a vibrated through hole to form particles of the melt. A particle producing apparatus is also provided including a discharger to discharge the melt. The discharger includes a storage to store the melt, at least one through hole disposed on the storage, and a vibrator to vibrate the through hole. The particle producing apparatus further includes a particle forming member defining a space within which the discharged melt is formed into particles and a pressure controller controlling a pressure difference between the space and an inside of the storage so that the discharged melt is formed into a columnar melt and the columnar melt is constricted and separated into particles.

Abstract: The present disclosure provides processes for the preparation of unsaturated polyesters. In embodiments, a process of the present disclosure includes reacting an organic diol with a cyclic alkylene carbonate in the presence of a first catalyst to thereby form a polyalkoxy diol, optionally adding thereto a further amount of cyclic alkylene carbonate in the presence of a second catalyst, and subsequently polycondensing the resulting mixture with a dicarboxylic acid in combination with an anhydride.

Abstract: Disclosed is a method of manufacturing a toner, wherein a liquid drop forming part including a storage part configured to store a toner composition liquid in which a toner composition including at least a resin and a coloring agent is dispersed or dissolved, a thin film on which a nozzle facing the storage part is formed, and a vibration generating part configured to vibrate the thin film via the toner composition liquid in the storage part are used, wherein plural storage chambers partitioned by a partition wall(s) are formed in the storage part and a width of each storage chamber in a direction of arrangement of the plural storage chambers and a width of each storage chamber in a direction orthogonal to the direction of arrangement of the storage chambers are formed to be one-half or less of a wavelength ? of a sonic wave generated in the storage part.