Abstract: An image forming method of forming images on both sides of a recording sheet; comprising the steps of: fixing a first toner image on a first surface a recording sheet; and fixing a second toner image on a second surface of the recording sheet; wherein in two-component developer includes toner particles each containing a binder resin having a glass transition temperature Tg° C. and a colorant and carrier particles in each on which magnetic powder is dispersed in a binder resin including a phenol formaldehyde obtained by a polymerization process, and the first toner image is fixed with first heat in such a way that the surface temperature of the first surface of the recording sheet is a temperature in a range of Tg° C. or more and lower than 100° C.

Abstract: A toner for an electrophotography and its manufacturing method are disclosed. The toner comprises toner particles containing a cross-linked polymer having two-valent crosslinking group represented by Formula (1), wherein, R1 is a hydrogen atom or a chlorine atom, R2 is a hydrogen atom, a chlorine atom or a methoxy group. The toner satisfies storage durability against heat as well as sufficient low temperature fixing ability.

Abstract: Disclosed is a toner including: a toner particle including at least a resin, a coloring agent and a mold release agent, wherein an average value e of degree of circularity of the toner particle is within 0.935=e=0.982, a maximum endothermic peak temperature of the mold release agent exists within 85-98° C., the resin includes at least non-crystalline polyester and crystalline polyester, and a ratio a of multivalent carboxylic acid of trivalent or higher-valent and a ratio c of straight chain aliphatic dial are such that 12.5=a=46, 20=c=65, 0.25=a/c=1.52, the multivalent carboxylic acid of trivalent or higher-valent and/or the straight chain aliphatic dial constituting the non-crystalline polyester and/or the crystalline polyester.

Abstract: Image forming method comprising a step of fixing a toner image in a fixing device of a contact heating system, wherein the toner comprises a resin which comprises a polyester resin and a styrene-aryl resin and is formed by a process comprising allowing a polyvalent carboxylic acid and a polyvalent alcohol to condensation-polymerize in the presence of a styrene monomer and an acrylic acid ester monomer in an aqueous medium to form the polyester resin and allowing the styrene monomer and the acrylic acid ester monomer to radical-polymerize to form the styrene-acryl resin; the fixing device of a contact heating system comprises a heating roller and a belt-form pressure means.

Abstract: A toner comprising toner particles containing a colorant and a binder resin, the binder resin comprising a polyester resin, wherein the polyester resin comprises at least a polyester segment containing an aromatic dial component, the polyester segment being derived from an aromatic diol and a dicarboxylic acid, wherein a content of the polyester segment containing an aromatic dial component is higher in a surface-portion of the toner particle than in a central portion of the toner particle.

Abstract: Disclosed is a manufacturing method of a magenta toner including the steps of dispersing an oil phase containing a radical polymerizable monomer for forming the binder resin and the colorant in an aqueous medium to form dispersion liquid in which the oil phase is dispersed in a form of droplets in the aqueous medium, and polymerizing the radical polymerizable monomer in the droplets in dispersion liquid to form resin particles containing colorant, in which the colorant comprises C.I. Solvent Red 48.

Abstract: Disclosed is a toner, comprising: a noncrystalline polyester resin; a crystalline polyester resin; a release agent; and a coloring agent, wherein the toner has a domain matrix structure in which the matrix comprises the noncrystalline polyester resin and the domain comprises the crystalline polyester resin and the release agent, and wherein the crystalline polyester resin includes within the release agent.

Abstract: A toner comprising a binder resin and a colorant, wherein the binder resin comprises an urea modified polyester, the urea modified polyester being prepared by urea-bonding an isocyanate-modified crystalline polyester segment and an isocyanate-modified amorphous polyester using an amine crosslinking agent.

Abstract: A toner for electrostatic latent image development, in which the image quality is fine, toner blister would not occur, and furthermore, the image quality which can fulfill customer's satisfaction can be obtained regardless of the temperature humidity environment in the image forming. The toner for electrostatic latent image development is made by agglomeration of resin particles and colorant particles in an aqueous medium. The acid value of the toner is less than 20 mgKOH/g, and the hydroxyl value of the toner is 7 to 57 mgKOH/g.

Abstract: An image forming method wherein a storage container, accommodating the toner having a volume-based median diameter of 3.5 ?m through 8.5 ?m and containing a resin having a glass-transition temperature of 0° C. through 46° C. and a softening point of 75° C. through 110° C., is included in an packaging container made of a substance having an apparent density of 0.1 through 0.3; and a toner supply section constituting the storage container is exposed to the outside from the packaging container, and is loaded on the image forming apparatus, whereby toner is supplied to the image forming apparatus.

Abstract: An image forming method in which toner having a an average circularity of 0.94-0.99, and an average equivalent circle diameter of 2.6-7.4 ?m of toner particles is utilized, an electrostatic latent image formed on an image carrying member being developed, and the toner image is transferred on a transferring material followed by fixing, wherein non-transferred toner remaining on said image carrying member is collected for reuse for image formation, and non-transferred toner collected is utilized after having been passed through a toner intermediate chamber.

Abstract: A set of a yellow toner, a magenta toner, a cyan toner and a black toner is disclosed. Each of the color toners contains a colored particle and cerium oxide particles, the colored particle containing an amorphous polyester resin, a crystalline polyester resin, a colorant and a releasing agent; and the yellow toner contains C.I. Pigment Yellow 74, the magenta toner contains C.I. Pigment Red 122 and C.I. Pigment Red 238, the cyan toner contains any one of C.I. Pigment Blue 15:1, C.I. Pigment Blue 15:2 and C.I. Pigment Blue 15:3, and the black toner contains carbon black and any one of C.I. Pigment Blue 15:1, C.I. Pigment Blue 15:2 and C.I. Pigment Blue 15:3.

Abstract: An electrophotographic toner for electrostatic image development which is capable of obtaining a high chroma full-color image exhibiting clear color without color contamination and achieving enhanced lightfastness is disclosed, comprising a resin and a colorant, wherein the colorant comprises a pigment of C.I. Pigment Red 209. There are also disclosed a full-color toner kit and an image forming method by use of the toner.

Abstract: Disclosed are a toner for developing an electrostatic image, a full color toner kit and an image formation method layer, the toner comprising at least a resin and a colorant, wherein the colorant includes quinacridone pigment having a number average primary particle size of from 30 to 150 nm and having a ratio of a long axis length to a short axis length of from 1.0 to 2.0.

Abstract: An electrophotographic toner for electrostatic image development which is capable of obtaining a high chroma full-color image exhibiting clear color without color contamination and excellent light stability is disclosed, comprising a resin and a colorant, wherein the colorant comprises a pigment of C.I. Pigment Blue 76. There are also disclosed a full-color toner kit and an image forming method by use of the toner.

Abstract: Disclosed is a toner for developing an electrostatic image, a full color toner kit comprising the toner and an image formation method employing the a full color toner kit, the toner comprising at least a resin and a colorant, wherein the colorant includes C.I. Pigment Blue 60 having a powder X-ray diffraction peak (2?) at 6.3±0.2° and 13.0±0.2°.

Abstract: An image forming method, including the steps of: charging each surface of a plurality of amorphous-silicon-based photoreceptors; exposing the each surface of the amorphous-silicon-based photoreceptors to form respective color latent images of yellow, magenta, cyan and black; developing the respective color latent images with corresponding color toners to form respective color visible toner images; and transferring the respective color toner images successively to be piled up on a toner image receiving member, wherein the color toner of each color contains grains having volume average grain size (D4) of 3-7 ?m and number average primary grain size of 40-800 nm, and the relationship of 1.04?B/A?1.4 (6?A?30) is satisfied between an exposure size (A ?m) in the main scanning direction in the exposing step and a development size (B ?m) corresponding to the exposure size (A ?m) in the developing step.

Abstract: An electrophotographic image forming method is disclosed, which includes the steps of developing an electrostatic image on a electrophotographic photoreceptor by a developer, transferring a toner image formed by the development, and fixing the toner image on a recording medium. It is disclosed that a toner has a volume particle diameter (Dv50) of about 4.4 to about 5.8 ?m and displays two or more endothermic peaks measured by DSC being within the rang of from about 50 to about 73° C. and the endothermic heat amount thereof is from 12.6 to 24.5 J/mg and a transferring member and/or a fixing member constituted by a belt containing a polyimide resin are employed in the method.

Abstract: A toner for electrostatic latent image development contains a toner particle having a median diameter (d50) in number standard of 2.5 ?m to 7.5 ?m, acrylate of less than 12 ppm and aliphatic alcohol of 4 to 12 carbons of 40 ppm to 300 ppm.

Abstract: A toner production method includes the step of: controlling a shape of toner particles in a shape controlling region to control the shape of toner particles in a water based medium, wherein the shape controlling region has a toner channel for the toner particles and a temperature controller capable of controlling at least two zones.