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8178276 Method of manufacturing toner  
A method of manufacturing a toner including granulating mother toner particles in an aqueous medium to obtain a slurry containing the mother toner particles and adjusting a size distribution of the...
8168364 Resin-filled carrier for electrophotographic developer, and electrophotographic developer using the resin-filled carrier  
A resin-filled carrier for an electrophotographic developer obtained by filling resin into voids of a porous ferrite core material, wherein the porous ferrite core material has a pore volume of...
8163453 Toner having particles and titanate compound  
Disclosed is a toner which can be charged at a designated level even when a lot of print is carried out with severity of charging by stirring and when the printing is carried out under the low...
8142972 Developer for replenishment and image forming method  
Provided is a developer for replenishment capable of forming a high-quality image even upon duration. The developer for replenishment includes at least a toner and a magnetic carrier, and in the...
8132451 Characterization tools for toner adhesion and adhesion distribution  
A system, method and device for measuring toner performance by randomly applying a toner sample having toner particles to a substrate, and positioning the substrate such that a force may be applied...
8114562 Two-component developer, replenishing developer, and image-forming method  
A two-component developer containing a yellow toner and a magnetic carrier, wherein the yellow toner has the characteristics: (i) when the concentration of the yellow toner in a solution of the...
8092967 Developing agent  
The developing agent is selected to have a distribution of adhesive force to the surface of an image carrier, which is configured such that the ratio of the developing agent having an adhesive...
8084179 Electrostatic image developing toner having specific variation coefficient of number distribution, two-component developer, image forming method and process cartridge  
A toner including: toner particles which include: a colorant, a releasing agent, and a binder resin. The number average particle diameter of the toner particles is in the range of from 3.5 μm to ...
8084178 Non-magnetic toner  
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...
8084180 Toner compositions  
Toner particles are provided which may, in embodiments, include a core possessing at least one polyester resin in combination with a colorant, optional wax, and optional other additives, and a...
8080353 Toner compositions  
A toner having its surface functionalized with functional groups, and processes for producing the same, are provided.
8057978 Toner for electrophotography  
An electrophotographic toner is disclosed, meeting the requirement that G′ (60)/G′ (80) is from 1×102 to 1×104, where G′ (60) G′ (80) are each a storage modulus of the toner at 60° C. and 80° C....
8053156 Toner, and toner production process  
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...
8043780 Toner, and developer, developing apparatus, process cartridge, image forming apparatus and image forming method  
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)...
8043779 Pulverized toner  
To provide a pulverized toner excellent in the releasing ability and cleaning ability, and an image-forming apparatus for one-component developer, and a process cartridge using the pulverized...
8043782 Toner for electrophotography  
A toner for electrophotography is provided including a binder resin, a coloring agent, a charge controlling agent, and a releasing agent, wherein when the temperature of the toner is in the range...
8039184 Two-component developer  
Provided is a two-component developer with which degradation of development is inhibited even in the case of prolonged use, and thereby a high quality image exhibiting high resolution and...
7977022 Developer, process cartridge, and image forming apparatus  
The invention provides a developer having at least a toner, an aeration ratio (AR) of the developer measured by a powder rheometer being in a range of about 5.0 to about 10.0. It is preferable that...
7951518 Polyester resin for toner, toner composition and resin particle  
Disclosed is a heat-fusible electrostatic image developing toner which has an excellent balance between fixability at low temperatures and grindability and is excellent in glossiness after fixing....
7939233 Magnetic carrier and two-component developer  
A magnetic carrier and a two-component developer are provided which have remedied blank areas, fog after leaving, carrier sticking during running, and image density variations before and after...
7939234 Carrier for electrostatic image development, and image formation method and apparatus  
An image forming apparatus, including a latent image-holding member, a developing unit, a transfer unit, a cleaning unit, and a recycling unit, wherein the developer includes a toner having an...
7935470 Toner for electrophotography  
A toner for electrophotography is provided including a binder resin, a colorant, a charge control agent, and a release agent, wherein a glass transition temperature (Tg) is over 55° C., a ...
7932007 Toner and method for producing the same, and image-forming method using the same  
There are provided: a method for producing a toner containing to granulate a toner and to subjecting the granulated toner to at least washing with an alkali washing solution, in which the total...
7927775 Magnetic carrier and two component developer  
Provided is a magnetic carrier giving a high quality image free of density variation without the occurrence of fogging or carrier adhesion and having excellent dot reproducibility even during...
7927776 Toner for electrophotography  
A toner for electrophotography is provided that includes a binder resin, a colorant, a charge control agent, and a releasing agent, wherein the toner has a complex viscosity (η) of about 4.0×101 P...
7923190 Toner  
In a toner containing at least a binder resin, a colorant, an ester compound and a low-melting material, the ester compound is an ester of dipentaerythritol with a carboxylic acid having 18 or more...
7914964 Both-sided image forming method  
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...
7910277 Predicting relative humidity sensitivity of developer materials  
A method of predicting a Lewis acid-base relative humidity (RH) ratio in a two-component developer comprised of at least a toner and a carrier including selecting a candidate toner, selecting a...
7906264 Electrostatic latent image developing toner and method for producing the same, and electrostatic latent image developer, toner cartridge, process cartridge and image forming apparatus  
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 ...
7906263 Color toner for developing electrostatic latent image  
The color toner for developing electrostatic latent images comprising a colored resin particle containing at least a binder resin, a colorant, a charge control agent and a parting agent, wherein an...
7906262 Two-component developer, replenishing developer, and image-forming method  
A two-component developer containing a cyan toner and a magnetic carrier, wherein the cyan toner has the characteristics: (i) when the concentration of the cyan toner in a solution of the cyan...
7901857 Electrostatic latent image developing toner, production method thereof, electrostatic latent image developer, and image forming method  
The present invention provides a toner for developing an electrostatic latent image comprising at least a core layer including at least a coloring agent and a first binder resin, and a shell layer...
7892717 Toner for electrostatic image development, electrostatic image developer and image forming method using the same  
The invention provides a toner for electrostatic image development having at least a binder resin and a colorant and having an existence ratio of an IA Group element, from which hydrogen is...
7879520 Toner for developing electrostatic image and image formation process using it  
A toner for developing an electrostatic image comprises a binding resin for a toner and a charge control agent including an azo-type iron complex salt represented by the following chemical formula...
7880483 Method for inspecting quality of core material for electrophotographic ferrite carrier  
An object of the present invention is to provide a quality inspection method for obtaining a specifying factor which can more reliably indicate powder characteristics of a core material for an...
7877053 Adjustable gloss control method with different substrates and 3-D image effect with adjustable gloss  
By using a high or low viscosity transparent toner, with respect to the other color toners, and different amounts of transparent toner lay-down, the gloss of an image printed by an...
7867683 Toner, method of producing the same, developer, and image forming apparatus  
A toner that when the complex elastic modulus measured at an angular frequency of 6.28 rad/sec., and a strain amount of 0.3% is 1×106 Pa or more and 1×108 Pa or less, the tangent loss is 0.5 or m...
7867678 Toner for use in a chilled finish roller system  
A toner composition for fixing onto a receiver in conjunction with non-contact fuser capable of fusing one or more layers of toner on the receiver such that one or more toner layers reach a fusing...
7858282 Toner  
Provided is a toner including toner particles each containing a binder resin, a colorant, and a wax, and inorganic fine particles, the toner having such a characteristic that a temperature-storage...
7853188 Image forming apparatus and image forming method  
A technology capable of suppressing the generation of transfer scattering of a toner image on an intermediate transfer body and contributing to an improvement in image quality in an image forming...
7851116 Emulsion aggregation high-gloss toner with calcium addition  
Toner including toner particles having a calcium-containing material at least in a surface portion of the toner particle, wherein the toner particles contain calcium in an amount of from 20 ppm to...
7833688 Methods for reducing plasticization and blocking in polyester toner compositions  
Use of a wax in a toner, such as carnauba wax, to give an increase in charge control agent in a toner, such as a magenta toner, to give an increased glass transition temperature is disclosed. The...
7824833 Resin-coated ferrite carrier for electrophotographic developer, its production method, and electrophotographic developer using the resin-coated ferrite carrier  
A spherical resin-coated ferrite carrier for an electrophotographic developer which can maintain a stable resistance and chargeability, a favorable charge rising property because of an excellent...
7824834 Toner for developing electrostatic image, method for preparing the toner, and image forming method and apparatus using the toner  
A toner 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...
7816063 Color toner and two-component developer  
The present invention relates to a toner which has good property such as fixability, coloring power, developability, durability, and environmental stability and so on. More specifically, the...
7811736 Image fixing method  
An image-fixing method for heat-fixing a toner image, by feeding an transfer medium carrying the toner image between a heating unit heated by an induction-heating process and a pressurizing unit...
7799500 Image forming method  
Disclosed is an electrophotographic image forming method which comprises steps of forming a toner image on an image support, fixing the toner image on the image support in a fixing nip section of a...
7794908 Toner  
Provided is magnetic toner including capsule type toner particles each having a surface layer (B) on a surface of a toner base particle (A) containing at least a binder resin (a) mainly formed of a...
7790343 Process, toner, process cartridge and apparatus for developing a toner image  
A process includes developing toner images on a photoconductor, transferring to an intermediate transfer belt and a transferring-and-fixing roller. The toner images are transferred to and fixed to...
7785761 Transparent toner, developer including same, gloss-providing unit and image forming device  
A transparent toner to be used for a transparent toner image formed with a color toner image, wherein a thermoplastic resin constituting the transparent toner is made of a resin obtained by...