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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...
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7968267 |
Method for developing an electrostatic latent image
The purpose is to provide, in a development apparatus using a two-component developer, a compact development apparatus, image forming apparatus and development method that prevents carrier...
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7848686 |
Developing device and image forming apparatus
A developing device uses a two-component developer including at least carriers and toners. The toners are supplied to an image bearing member bearing an electrostatic latent image so that a toner...
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7767370 |
Two-component developer, replenishing developer, and image-forming method
A two-component developer containing a magenta toner and a magnetic carrier, wherein the magenta toner has the characteristics: (i) when the concentration of the magenta toner in a solution of the...
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7553598 |
Electrophotographic carrier, developer, developer container, process cartridge, image forming apparatus and image forming method
A carrier contains a core; and a cover layer located overlying the core, wherein the cover layer comprises a binder resin, a first particulate material and a second particulate material, wherein...
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7452651 |
Carrier, two-component developer, and image forming method
In a carrier comprising carrier particles; each carrier particle comprising a carrier core and a coat layer for coating the carrier core, the carrier core has a ferrite component containing i) a...
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7381513 |
Carrier, developer, image forming method and process cartridge for electrostatic image development
A carrier containing a core material and a resin coating layer located overlying the surface of the core material. The resin coating layer contains resin and electroconductive particles having an...
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7344812 |
Developer for developing electrostatic latent image and image forming apparatus
A developer for developing an electrostatic latent image, including a carrier which includes core particles, and a surface layer surrounding each of the core particles and containing an acrylic...
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7320852 |
Carrier for developer for developing electrostatic latent image, developer using same and image forming method using same
A carrier for use with a toner as a two-component type developer for developing an electrostatic image, comprising spherical magnetic core particles, and a resin layer covering each of said core...
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6939654 |
Carrier and developer for developing latent electrostatic images
A carrier develops latent electrostatic images in corporation with a toner and one particle of the carrier includes a magnetic particle, and a coating layer covering the magnetic particle. The...
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6887636 |
Toner for two-component developer, image forming method and device for developing electrostatic latent image
A toner for a two-component developer comprising the toner and carrier particles, the developer being used for an oilless fixing-type image forming apparatus comprising a developer carrier...
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6764798 |
Two-component developer
A two-component developer comprising a toner onto which a hydrophobic silica having an average particle size of 25 nm or more is externally added, and a carrier having a saturation magnetization of...
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6696213 |
Method of developing a latent electrostatic image
A method of developing a latent electrostatic image using a two-component developer system, having a ratio (Vr/Vp) ranges 1.2<(Vr/Vp)<3 where the (Vp) is a linear speed (Vp)[m/sec] of a...
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6673502 |
Carrier for development of electrostatic latent image, electrostatic latent image developer and image forming method
A carrier for the development of an electrostatic latent image, comprising a core material and a resin coating the core material therewith, wherein the coating resin comprises a copolymer of at...
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6641967 |
Carrier for electrophotography, two component type developer, and image forming method
A carrier for electrophotography and a two component type developer using the carrier. The carrier is composed of magnetic particles of a magnetic ferrite component represented by Formula:...
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6489075 |
Toner for developing electrostatic latent image, process for producing the same, developer for developing electrostatic latent image, and process for forming image
A toner for developing an electrostatic latent image, a process for producing the same, and a developer for developing an electrostatic latent image using the same are provided, in which the toner...
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6455218 |
Developer for electrostatic image development and image forming method using the same
The present invention relates to a developer for electrostatic image development comprising: a toner for electrostatic image development which comprises a resin and a colorant; and a carrier formed...
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6312862 |
Two-component type developer and image forming method
A two-component type developer has a negatively chargeable toner having toner particles and an external additive and a magnetic-fine-particle-dispersed resin carrier. The...
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6096466 |
Developer and developing method
A developer for replenishment for use in a developing system in which a latent image on a latent image holding member is developed with a developing unit containing a two-component developer...
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6054243 |
Carrier and developer material, and an image forming method
A silicone resin-coated carrier for a developer of an electrostatic latent image is disclosed. The surface index S of the carrier is between 10.0 and 70.0. S=(SBET /X)/Sc SBET : BET specific...
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5821023 |
Developer of electrostatic latent image, carrier therefor, method for forming image and image forming apparatus thereby
The present invention provides a long-life carrier for developing an electrostatic latent image to be used in such field of applications as electrostatic photography and electrostatic recording, a...
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5705307 |
Method of developing electrostatic images
A method of developing electrostatic images with a two component developer avoids the break-in period of developer by providing a fresh mixture of carrier and toner, which toner has a first...
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5674656 |
Processes for stabilizing developer chargability and imaging processes thereof
A process for controlling At transience comprising: providing in a developer housing, a two component developer composition comprising toner particles comprised of a resin, a pigment, a mixture of...
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5672455 |
Carrier for electrostatic latent-image developer, electrostatic latent-image developer and image forming process
A carrier for an electrostatic latent-image developer, comprising a core material having thereon a coating layer comprising a resin and fine electroconductive particles, the resin having a work...
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5124222 |
Toner and developer compositions having cleaning and lubricating additives
Disclosed are toner compositions which comprise a toner particle having cleaning and lubricating agents added externally thereto. The cleaning and lubricating agents improve copy quality and extend...
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5110705 |
Contact type developing method and developing unit
In a developing method in which a thin layer of toner is formed on the surface of a toner carrier to which a developing bias voltage is applied and the thin layer of toner is supplied to an...
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5034300 |
Charging means with imidazole derivatives for use in developing device and method of developing
This invention relates to charging means which contacts with a toner to charge the toner and being installed in a developing machine for developing electrostatic latent images by a dry developer;...
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4963455 |
Developer compositions with suspension polymerized styrene butadiene resins
Developer compositions with toner compositions comprised of suspension polymerized styrene butadiene polymers, pigment particles, magnetites, and charge enhancing additives; and carrier components...
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4945022 |
Triboelectric charge application member for toner comprising copolymer of fluoro-olefin monomer and unsaturated silicon monomer
A triboelectric charge application member for imparting or applying electrostatic charge to a toner through the triboelectric charging thereof for developing electrostatic images with the charge...
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RE33172 |
Process for magnetic image character recognition
Disclosed is an improved, simple, economical process for generating documents, such as personal checks, suitable for magnetic image character recognition, which process comprises generating such...
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4746589 |
Developing method in electrophotography using oscillating electric field
A developing method wherein a developer layer formed on a developer feeding carrier is conveyed, into an oscillating electric field, and an electrostatic latent image on an image retainer is...
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4695524 |
Process for ultra high quality images with magnetic developer composition
Disclosed is a process for generating consistent high quality images comprised of (1) providing a xerographic imaging or printing apparatus; (2) adding thereto a stable two component developer...
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4609603 |
Process for achieving consistent high quality images with magnetic developer composition
A process for generating consistent high quality images for extended periods, consisting essentially of (1) providing a xerographic imaging, or printing apparatus; (2) adding thereto a stable two...
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4378420 |
Process for charging toner compositions
This invention is generally directed to an improved process for rapidly charging uncharged replenishment toner particles to a positive polarity, and the use of such particles for developing images...
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4331756 |
Developer compositions with toner, coated carrier and lubricant
Electrophotographic developer compositions containing carrier, toner and special purpose additives such as flow promoters, dry lubricants and the like are prepared by coating carrier particles with...
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4297427 |
Polyblend coated carrier materials
Electrostatographic developer mixtures comprising finely-divided toner particles electrostatically clinging to the surface of carrier particles comprising a core having an outer coating thereon...
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4267247 |
Low specific gravity magnetic carrier materials
Electrostatographic carrier materials having low bulk densities and high magnetic permeabilities are obtained by impregnating low density porous silicaceous particles with a magnetic or...
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4252881 |
Developer mixture
An electrostatographic developer mixture comprising finely divided toner particles, and steel bead carriers whose surfaces are carburized, or nitrided or carburized-nitrided.
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4199614 |
Transparent colored magnetic materials and electrostatographic process
Transparent colored materials having low bulk densities and high magnetic permeabilities are obtained by encasing silicaceous particles in a sheath of magnetic or magnetically-attractable metal,...
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4172722 |
Electrostatic copying method for forming multiple copies
This invention provides an electrostatic copying method for forming multiple copies by repeating the process of developing an electrostatic latent image formed on an electrophotographic insulating...
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4156607 |
Carrier coated with acyl modified styrene copolymer, used in electrostatic imaging process
Electrostatographic developer compositions for use in developing electrostatic latent images wherein the triboelectric charging potential of functional polymers employed in the carrier materials...
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4148640 |
Developer compositions having electrically conducting filaments in carrier particle matrix
An electrographic developer contains a mixture of toner powder particles and carrier particles comprising tendrillar electrically conducting filaments substantially uniformly distributed in a...
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4126454 |
Imaging process utilizing classified high surface area carrier materials
An electrostatographic imaging process comprising the steps of providing an electrostatoraphic imaging member having a recording surface, forming an electrostatic latent image on said recording...
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4093459 |
Treated carrier particles used in electrophotographic process
Carrier particles for use in an electrophotographic process are prepared by applying a mixture of a perfluoro acid and molybdenum disulfide to the surface of the carrier particle. The resulting...
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4092163 |
Imaging process utilizing silylated coated carrier
Electrostatographic developer compositions for use in developing electrostatic latent images wherein the triboelectric charging potential of functional polymers employed in the carrier materials...
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4078926 |
Imaging method utilizing functionalized carrier materials
Electrostatographic developer compositions for use in developing electrostatic latent images wherein the triboelectric charging potential of functional polymers employed in the carrier materials...
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4065305 |
Xerographic developer
An improved developer mixture comprising from between about 0.3 and about 5.0 percent by weight of finely-divided colored toner particles blended with at least about 95 percent by weight of carrier...
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4057426 |
Magenta toner with a coated carrier
A novel magenta developer system is provided which employs a 2,9-dimethylquinacridone pigment and a resin toner in combination with a carrier coated with resin containing copper...
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4055684 |
Coated carrier particles for use in electrophotographic process
Carrier particles for use in an electrophotographic process are prepared by coating a particulate matrix with an ion exchange resin dispersed in a polymeric binder. The resulting coated carrier...
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4053310 |
Durable carrier coating compositions comprising polysulfone
A carrier particle for electrostatographic developer mixtures comprising a core having a thin, wear-resistant coating of a polysulfone. The carrier coating is durable and resistant to mechanical...
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