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Document Title |
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7378213 |
Image forming process and image forming apparatus
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...
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7374854 |
Image-forming method and image-forming apparatus using the same
The present invention provides an image-forming method, including pseudo-halftone-processing an input signal corresponding to image information to generate an output signal; irradiating a radiation...
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7374848 |
Toner and method or preparing the toner
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...
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7344815 |
Toner for forming electrostatic image
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...
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7344814 |
Toner and image-forming method therewith
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...
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7340202 |
Image forming apparatus and process cartridge for use therewith
An image forming apparatus and process cartridge that achieves extended operating life of a two-component developer without generating such problems as toner scattering, etc. either in the initial...
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7333744 |
Image forming apparatus that charges a photosensitive member by superimposing an alternate current bias voltage on a direct current bias voltage as the charge bias voltage
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...
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7323281 |
Toner, developer including the toner, container containing the toner or the developer and method of producing the toner
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...
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7318990 |
Toner, developer, image forming method, image forming apparatus and toner manufacturing method
A toner includes toner particles which have a binder resin and a colorant. The toner has a weight average particle diameter of from 4 to 7 μm and includes toner particles having a circle...
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7312009 |
Color toner having low contamination of charging elements
The present invention relates to a non-magnetic mono-component toner comprising a toner mother particle, and a coating layer formed on the mother particle where the coating layer comprises fatty...
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7298995 |
Developing device used in an image forming apparatus
The developing device 100 includes a stirrer and transferor 122, 124, a magnetic roller 130, and a developing roller 140 , that are disposed in a housing 110 which contains the...
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7291435 |
Toner binder for electrophotography and toner for electrophotography
The present invention provides a toner binder for electrophotography which comprises a polyester resin constituted of an alcohol component containing a polyoxyalkylene ether (A) of a bisphenol and...
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7288353 |
Toner, developer, image developer and image forming apparatus
A toner including toner particles including a binder resin, a colorant, and an inorganic particulate material present on a surface of the toner particles. The toner particles have a surface...
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7279261 |
Emulsion aggregation toner compositions
A toner includes particles of a resin, a leveling agent, an optional colorant, and additional optional additives, where the leveling agent is selected from silicon containing leveling agents, and...
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7223508 |
Toner for developing electrostatic image, method for producing the toner and image forming method
The toner for developing an electrostatic image, includes a toner particle containing a binder resin and a colorant. The colorant has Feret's average horizontal diameter from 10 nm to 500 nm, and...
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7211361 |
Image formation apparatus and image formation method
An image formation apparatus includes a development unit using a developer support having a conductive surface layer, and a control unit for causing an idle operation of the developer support to be...
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7183035 |
Image forming method
An image forming method having: developing a latent image formed on a cylindrical electrophotographic photoreceptor having a cylindricity of 5 to 40 μm, with a developer comprising a toner which...
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7171145 |
Developing device and process cartridge for an image forming apparatus
A method of developing a latent image formed on an image carrier with toner, including causing a developer carrier, which faces the image carrier and accommodates a magnet therein, to support a...
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7163773 |
Toner for developing electrostatic image, developer, process for forming image, and image forming apparatus
Spherical toners having excellent fusibility are disclosed. The toners are fusible at low temperatures and are excellent in preservability and therefore charge properties, flowability, and...
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7150909 |
Electrophotographic image-receiving sheet and process for image formation using the same
The present invention aims to provide an process for image formation using an electrophotographic image-receiving sheet having excellent anti-offset properties, adhesion resistance, paper transport...
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7147979 |
Toner for developing electrostatic image
A toner for developing an electrostatic image, comprising, a binder resin, a colorant, a charge control agent, and a parting agent, and wherein: a volume average particle diameter (Dv) of toner...
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7144668 |
Toner and two-component developer
The present invention provides a toner: comprising a binder resin comprising a polyester unit, a colorant, a releasing agent, and inorganic fine particles; has a weight average particle diameter of...
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7135262 |
Image forming method
An electrostatic toner image forming method is disclosed. In the method, the photoreceptor comprises a charge generation layer containing an N-type charge generation material and a charge...
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7132207 |
Toner kit and color-image-forming method
In a toner kit having i) a non-magnetic black toner having at least carbon black and ii) color toners, the black toner has a weight-average particle diameter represented by D 4 b and a one-point...
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7130564 |
Method and apparatus for image forming capable of removing residual toner without using a toner cleaning system, process cartridge for use in the apparatus and toner used for the image forming
An image forming apparatus includes an image bearing member configured to form an electrostatic latent image on a surface thereof, and a separating mechanism configured to separate an irregular...
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7125638 |
Image forming method and image forming apparatus for same
An electrophotographic image forming apparatus capable of reliably forming an image with density gradation, one which does not have a low-quality appearance. The estimated average halftone...
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7125637 |
Toner for developing electrostatic latent image, image forming method and image forming apparatus
In a toner for developing electrostatic latent images, average circularity is 0.94–0.98, the average value of the equivalent circular diameter is 2.6–7.4 μm and the gradient of the circularity...
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7123862 |
Image forming apparatus
In an image forming apparatus having at least an amorphous silicon photosensitive member, a magnetic toner developing means and a color developer developing means, the magnetic toner has a...
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7112395 |
Color toner
To provide a color toner which is effective in mitigating contamination of a charging member, which is good at low temperature fixing in high-speed copying, and which is excellent in blocking...
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7090954 |
Developer, developer cartridge, and image forming apparatus
In order to control the filming, a developer comprises developer primary particles, each comprising at least a resin and a colorant and an additive agent added to the developer primary particles...
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7083890 |
Toner and image forming apparatus using the toner
A toner is used in an image forming process employing a toner recycling system and contains at least a modified polyester resin, a coloring agent, and a releasing agent. The toner has a...
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7070899 |
Electrostatic latent image developer, image forming method, and image forming apparatus
An electrophotographic developer is provided for realizing high-quality images and superior reproducibility of laser dots in a low coverage region and reduced unevenness of color in halftone solid...
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7070898 |
Toner
A toner having a favorable fixability, excelling in charge stability, and capable of forming a image of retaining a high image density and a high resolution in long-term use is provided. That is,...
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7063927 |
Toner for electrostatic latent image development, electrostatic latent image developer, process for preparing toner for electrostatic latent image development, and image forming method
A toner for electrostatic latent image development having coloring particles containing at least a binding resin, a coloring agent and a release agent, and an external additive, wherein a variation...
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7062194 |
Charging device, and process cartridge and image forming apparatus including the charging device
A charging device including a charging roller having a metallic cylinder with an elastic layer disposed thereon, and a cleaner for cleaning the surface of the charging roller. The cleaner includes...
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7029809 |
Toner kit and color-image-forming method
In a toner kit having i) a non-magnetic black toner having at least carbon black and ii) color toners, the black toner has a weight-average particle diameter represented by D 4 b and a one-point...
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7018761 |
Toner and image forming method
A toner used for an image forming method comprises steps of: limiting an amount of toner on a surface of a toner carrier by allowing a toner layer limiting member to be pressed to the surface of...
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6991885 |
Non-magnetic one-component toner, non-magnetic one-component contact developing device and image-forming apparatus
The present invention relates to a non-magnetic one-component toner that is characterized by containing toner particles that have a volume-average particle size of 2 to 8 μm, a ratio of the...
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6963711 |
Developing method and developing device for electrophotographic image, and printing device using the developing device
A developing device for electrophotographic image has a developing mechanism having a developer carrier for carrying a developer along a preset circulating route including a developing area and a...
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6946230 |
Electrostatic image developing processes and compositions
Compositions and methods for electrographic image development, wherein the image development process employs a two-component developer that includes toner particles having a radius R T and...
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6911289 |
Toner, method for manufacturing the toner, and image forming method and apparatus using the toner
A toner including toner particles including a binder resin and a release agent, wherein when the toner is molded into a plate upon application of a pressure of 478 kg/cm 2 , the toner plate has a...
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6904251 |
Image forming apparatus including a transfer member made of a resin material for use with toner having a specified weight particle size distribution
The image forming apparatus includes: a plurality of image forming units each having an image bearing member and a developing unit; and a transfer member provided to be able to contact the...
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6902856 |
Toner, image forming method, and image forming apparatus
An electrophotographic image forming method is disclosed. In the method each of a plurality of toner images formed on the latent image bearing body is sequentially onto an intermediate transfer...
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6887638 |
Toner for developing electrostatic latent image, process for producing the same, process for forming image, apparatus for forming image and toner cartridge
A toner for developing an electrostatic latent image is provided that is excellent in releasing property upon fixing and shape controllability upon production of the toner. The toner for developing...
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6875549 |
Dry toner, toner production process, image forming method and process cartridge
A toner showing a high transferability and suitable for use in cleanerless image forming system is formed of toner particles comprising at least a binder resin and magnetic iron oxide. The toner is...
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6873814 |
Developing device using a two-ingredient type developer and image forming apparatus including the same
A developing device including a developer containing magnetic toner grains and includes a main pole for development disposed in a sleeve. Flux density generated by the magnetic pole in a direction...
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6868252 |
Cleaning device and image forming apparatus using the same
In an image forming apparatus, after the development of a latent image formed on an image carrier effected by using toner, which has a volume mean grain size of 5 μm to 10 μm and in which 60...
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6864031 |
Electrophotographic developer and image-forming method using the developer
The present invention provides an electrophotographic developer which reduces toner contamination on the surface of a developer carrier even when a development effective range is narrowed and which...
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6852462 |
Toner, method of forming the toner, and image forming method and apparatus using the toner
A toner comprising:
a binder resin which is at least a resin selected from the group consisting of modified polyester resins and unmodified polyester resins; and a colorant; the product...
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6849369 |
Toner for developing electrostatic image, method for manufacturing the toner, developer including the toner, container containing the toner, and developing method using the toner
Toner particles including a binder resin; a colorant; and a particulate resin which is present at least on a surface of the toner particles and which has a glass transition temperature of form 50...
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