| Patent application number | Description | Published |
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| 20080232853 | CONFORMABLE, ELECTRICALLY RELAXABLE RUBBERS USING CARBON NANOTUBES FOR BCR/BTR APPLICATIONS - Exemplary embodiments provide bias-able devices for use in electrostato-graphic printing apparatuses using conformable and electrically relaxable rubber materials. The rubber material can include a plurality of nanotubes distributed uniformly and/or spatially-controlled throughout a rubber matrix for providing the rubber material with a uniform mechanical conformability and a uniform electrical resistivity. The rubber material can be used as a functional layer disposed over a conductive substrate such as a conductive core depending on the specific design or engine architecture. Other functional layers can also be disposed over the conductive substrate and/or the rubber material of the bias-able devices including bias charging rolls (BCRs) and bias transfer rolls (BTRs). | 09-25-2008 |
| 20090160920 | Pressure And Transfix Rollers For A Solid Ink Jet Printing Apparatus - A printing machine for transferring a phase change ink onto a print medium includes a component for applying a phase change ink in an image, an imaging member for accepting the image and transferring the image from the imaging member to the print medium and a pressure member positioned in association with the imaging member to form a nip through which the print medium passes. The pressure member includes an outer layer with a tailored electrical conductivity to eliminate ghosting in duplex printing modes. The outer layer comprises a composite of a polymer and carbon nanotubes and/or graphenes. A similar outer layer may be implemented on a pressure roller in a direct-to-paper printing machine. | 06-25-2009 |
| 20090162637 | CARBON NANOTUBE FILLED POLYCARBONATE ANTI-CURL BACK COATING WITH IMPROVED ELECTRICAL AND MECHANICAL PROPERTIES - Transparent or semi-transparent, electrically conductive anti-curl back coating composite for electrophotographic imaging member comprising a carbon nanotube complex and a polycarbonate binder are described along with processes for preparing them. | 06-25-2009 |
| 20090162761 | OPTICALLY TRANSPARENT SOLVENT COATABLE CARBON NANOTUBE GROUND PLANE - In accordance with the invention, there are xerographic photoreceptors, image forming apparatus, and methods of forming an image on image. The xerographic photoreceptor can include a substrate and a conductive ground plane having an optical transparency disposed over the substrate, the conductive ground plane including a carbon nanotube layer, such that machine cycling of the xerographic photoreceptor can produce less than approximately a 10% change in the optical transparency of the conductive ground plane after about 100,000 or more machine cycles. The xerographic photoreceptor can also include a photosensitive layer disposed over the conductive ground plane, wherein the photosensitive layer can include a charge generator material and a charge transport material. | 06-25-2009 |
| 20090162777 | ELECTRICALLY RESISTIVE COATINGS/LAYERS USING SOLUBLE CARBON NANOTUBE COMPLEXES IN POLYMERS - A process and result for forming an electrically relaxable coating composite for an electrophotographic imaging component includes providing a non-functionalized soluble carbon nanotube complex, and mixing a polymer material with the soluble carbon nanotube complex. The electrically relaxable coating composite exhibits resistivity in the range or about 10 | 06-25-2009 |
| 20090245840 | DIGITAL FUSER CONCEPT USING MICRO HOTPLATE TECHNOLOGY - In accordance with the invention, there are printing apparatuses and methods of marking and forming an image. The printing apparatus can include one or more digital heating elements disposed in a fuser subsystem, the digital heating element can include an array of hotplates, wherein each hotplate of the array of hotplates can be thermally isolated and can be individually addressable, wherein each hotplate can be configured to attain a temperature up to approximately 200° C. from approximately 20° C. in a time frame of milliseconds. | 10-01-2009 |
| 20090252535 | HIGH STRENGTH, LIGHT WEIGHT CORONA WIRES USING CARBON NANOTUBE YARNS - Exemplary embodiments provide materials and devices for a corona charging. Specifically, carbon nanotube yarns can be used as corona wires (or coronode) in a corotron-type or scorotron-type charging device. The carbon nanotube yarns can provide small diameters, and desired electrical, mechanical and thermal properties. The carbon nanotube yarns can have a diameter of about 100 microns or less for a low operating voltage of the charging device. | 10-08-2009 |
| 20090257787 | HSD WIRES USING FIBROUS CARBON NANOMATERIAL YARNS - A Hybrid Scavengeless Development electrophotographic printing system is provided wherein the electrode wires contain carbon nanotube yarn. The use of carbon nanotube yarn alleviates the problem of fundamental strobing image defects, because the electrodes made from the carbon nanotube yarn can be put at a higher tension to density set point, and thereby achieve fundamental resonance frequencies larger than that obtainable from steel. Additionally the yarn's strength is sufficient to withstand the typical forces it is subjected to in a Hybrid Scavengeless Development environment. | 10-15-2009 |
| 20090324308 | OIL LESS FUSING USING NANO/MICRO TEXTURED FUSING SURFACES - Exemplary embodiments provide a fixing member having a textured surface, and methods for making and using the textured fixing member. The fixing member can include a substrate having one or more functional layers formed thereon. The one or more functional layers can include an outermost or top surface having a surface wettability that is hydrophobic and/or oleophobic; ultrahydrophobic and/or ultraoleophobic; or superhydrophobic and/or superoleophobic by forming textured features. Such fixing member can be used as an oil-less fusing member for high speed, high quality electrophotographic printing to ensure and maintain a good toner release from the fused toner image on an image supporting material(e.g., a paper sheet), and further assist paper stripping. In addition, the textured surface can provide an oil-free, such as wax-free, toner design for the oil-less fixing process. | 12-31-2009 |
| 20100104332 | NANOMATERIAL HEATING ELEMENT FOR FUSING APPLICATIONS - In accordance with the invention, there are printing apparatuses and methods of forming an image. An exemplary printing apparatus can include a fuser subsystem including one-or more light induced heating elements, each of the one or more light induced heating elements including plurality of nanomaterials, wherein the nanomaterials are selected from the group consisting of carbon nanotubes and metal nanoshells. The exemplary printing apparatus can also include one or more light sources disposed in close proximity to the one or more light induced heating elements, each of the one or more light sources having an emission in the absorption range of the plurality of nanomaterials and disposed to produce heat in the fuser subsystem by light absorption by the plurality of nanomaterials. | 04-29-2010 |
| 20100151245 | FABRICATION OF LARGE AREA, TEXTURED OIL-LESS FUSING/FIXING SURFACES BY ELECTROSPINNING TECHNIQUE - In accordance with the invention, there are image forming apparatuses, fuser members, and methods of making fuser members. The fuser member can include a substrate and an electrospun layer disposed over the substrate, the electrospun layer including a structure selected from a group consisting of a fiber-on-fiber structure, a bead-on-fiber structure, and a pop-corn structure, wherein the fuser member includes a top surface that is both hydrophobic and oleophobic. | 06-17-2010 |
| 20100183348 | FLUORINATED CARBON NANOTUBES AND TEFLON RELATED NANOCOMPOSITES - In accordance with the invention, there are printing apparatuses, fuser members, and methods of making fuser members. The printing apparatus can include a fuser member, the fuser member including a substrate. The fuser member can also include one or more functional layers disposed over the substrate and a top coat layer including a fluorinated nanocomposite disposed over the one or more functional layers, wherein the fluorinated nanocomposite includes a plurality of fluorinated carbon nanotubes dispersed in one or more fluoropolymers. | 07-22-2010 |
| 20100239966 | COATING DISPERSION FOR OPTICALLY SUITABLE AND CONDUCTIVE ANTI-CURL BACK COATING LAYER - The presently disclosed embodiments relate generally to layers that are useful in imaging apparatus members and components, for use in electrostatographic, including digital, apparatuses. More particularly, the embodiments pertain to an improved electrostatographic imaging member incorporating a carbon nano tube dispersion into a high molecular weight polycarbonate and an anti-static copolymer with polyester, polycarbonate, and polyethylene glycol units in a formulation for the anti-curl back coating layer which provides a conductively suitable and stable dispersion coating solution for making an optically suitable anti-curl back coating layer. | 09-23-2010 |
| 20100258238 | REDUCED FEED ROLL WEAR USING CARBON NANOTUBE ADDITIVES IN RUBBERS - In accordance with the invention, there are media feeding assemblies and methods of making a roll of a media feeding assembly. The method can include providing a soluble carbon nanotube composition, providing a first elastomeric rubber composition, and mixing the soluble carbon nanotube composition with the first elastomeric rubber composition to form a composite rubber composition, such that the soluble carbon nanotubes are substantially uniformly dispersed in the composite rubber composition. The method can also include applying the composite rubber composition to a mold and curing the composite rubber composition to form a composite rubber tire, such that the substantially uniformly dispersed soluble carbon nanotubes in the composite rubber tire provide at least about 10% decrease in wear. | 10-14-2010 |
| 20100273100 | COATING FOR OPTICALLY SUITABLE AND CONDUCTIVE ANTI-CURL BACK COATING LAYER - The presently disclosed embodiments relate generally to layers that are useful in imaging apparatus members and components, for use in electrostatographic, including digital, apparatuses. More particularly, the embodiments pertain to an improved electrostatographic imaging member incorporating a thermoplastic material pre-compounded to impart conductivity to the anti-curl back coating layer and may also contain an adhesion promoter which provides a conductively and optically anti-curl back coating layer. The conductive anti-curl back coating of the present disclosure may be formulated to have a single layer, dual layers, or triple layers. | 10-28-2010 |
| 20100302337 | HEATING ELEMENT INCORPORATING AN ARRAY OF TRANSISTOR MICRO-HEATERS FOR DIGITAL IMAGE MARKING - The exemplary embodiments disclosed herein incorporate transistor heating technology to create micro-heater arrays as the digital heating element for various marking applications. The transistor heaters are typically fabricated either on a thin flexible substrate or on an amorphous silicon drum and embedded below the working surface. Matrix drive methods may be used to address each individual micro-heater and deliver heat to selected surface areas. Depending on different marking applications, the digital heating element may be used to selectively tune the wettability of thermo-sensitive coating, selectively change ink rheology, selectively remove liquid from the surface, selectively fuse/fix toner/ink on the paper. | 12-02-2010 |
| 20100313644 | NOVEL 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 to individual particles of the measuring toner. A rolling resistance or rotation of the individual particles of the measuring toner is measured. The measurements may be analyzed to determine adhesion and distribution properties of individual toner particles of the measuring toner sample. | 12-16-2010 |
| 20110013954 | INDUCTIVELY HEATED CARBON NANOTUBE FUSER - Systems and methods of inductively heating a fuser member in an electrophotographic device are disclosed. The systems and methods can include a heating component with a susceptor layer comprising carbon nanotubes (CNTs). An excitation unit with an electrical coil can be positioned a proximate distance from the heating component Current through the electrical coil can inductively heat the susceptor layer and the heating component. The heat from the susceptor layer and the heating component can be used to fuse toner onto an image-receiving substrate. The CNTs can reduce electronic hardware costs in the electrophotographic device in relation to the costs associated with conventional materials. | 01-20-2011 |
| 20110025752 | FABRICATION OF IMPROVED ALUMINUM ROLLERS WITH LOW ADHESION AND ULTRA/SUPER HYDROPHOBICITY AND/OR OLEOPHOBICITY BY ELECTROSPINNING TECHNIQUE IN SOLID INK-JET MARKING - Exemplary embodiments provide materials and methods for a printer member used in ink-jet marking systems that can include a layer electrospun over an aluminum roller to facilitate transport of a printable substrate having ink images thereon and to reduce ink offset from the printable substrate. | 02-03-2011 |
| 20110025791 | Rollers for Phase-Change Ink Printing - A printer for transferring a phase-change ink onto a substrate comprises components for conveying the substrate along a path through the printing machine, a printing station including a plurality of printheads disposed along the path and configured to transfer the phase-change solid ink onto the substrate as it is conveyed along the path, a plurality of metal backing rollers facing the plurality of printheads and arranged to support to the substrate passing between the backing rollers and the printheads, and a spreader station receiving the substrate from the printing station and configured to spread the phase-change solid ink on the substrate, the spreader station including a spreader roller and a metal pressure roller opposing the spreader roller. Each of the non-oiled metal rollers includes a coating that is an oleophobic that has low adhesion toward the solid ink image but sufficient lateral friction as to not slide against the ink or paper web. | 02-03-2011 |
| 20110039196 | DIGITAL ELECTROSTATIC LATENT IMAGE GENERATING MEMBER - Embodiments pertain to a novel imaging member, namely, an electrostatic latent image generating member that can generate an electrostatic latent image digitally without using a raster output scanner (ROS), photoreceptor and charger. The imaging member facilitates the charge injection process between an organic conjugated polymer and N,N′-diphenyl-N,N′bis(3-methylphenyl)-[1,1′-biphenyl]-4,4′diamine charge transport layer. | 02-17-2011 |
| 20110039201 | DIGITAL ELECTROSTATIC LATENT IMAGE GENERATING MEMBER - Provided are electrostatic latent image generators, printing apparatuses including the electrostatic latent image generators, and methods of forming an electrostatic latent image. The electrostatic latent image generator can include a substrate and an array of pixels disposed over the substrate, wherein each pixel of the array of pixels can include a layer of one or more nano-carbon materials, and wherein each pixel of the array of pixels is electrically isolated and is individually addressable. The electrostatic latent image generator can also include a charge transport layer disposed over the array of pixels, wherein the charge transport layer can include a surface disposed opposite to the array of pixels, and wherein the charge transport layer is configured to transport holes provided by the one or more pixels to the surface. | 02-17-2011 |
| 20110122195 | Coating For An Ink Jet Printhead Front Face - A coating for an ink jet printhead front face, wherein the coating comprises a low adhesion coating, wherein when the low adhesion coating is disposed on an ink jet printhead front face surface, jetted drops of ultra-violet gel ink or jetted drops of solid ink exhibit a low sliding angle with the printhead front face surface, wherein the low sliding angle is less than about 1° to less than about 30°. In embodiments, the low adhesion coating is an oleophobic coating that exhibits a contact angle of greater than about 35° with ultra-violet gel ink or solid ink. | 05-26-2011 |
| 20110122210 | Image Conditioning Coating - A contact leveling surface for an ink jet imaging member comprising a low adhesion coating, wherein when the low adhesion coating is disposed on a contact leveling surface, jetted drops of ultra-violet gel ink exhibit a low sliding angle with the contact leveling surface, wherein the low sliding angle is less than about 1° to less than about 30°. | 05-26-2011 |
| 20110157276 | Superoleophobic and Superhydrophobic Devices And Method For Preparing Same - A process for preparing a flexible device having a textured superoleophobic surface comprising providing a flexible substrate; disposing a silicon layer on the flexible substrate; using photolithography to create a textured pattern in the silicon layer on the substrate wherein the textured pattern comprises an array of pillars; and chemically modifying the textured surface by disposing a conformal oleophobic coating thereon; to provide a flexible device having a superoleophobic surface and, in embodiments, to provide a flexible device having a surface that is both superoleophobic and superhydrophobic. | 06-30-2011 |
| 20110157277 | Superoleophobic and Superhydrophobic Surfaces And Method For Preparing Same - A process for preparing a flexible device having a superoleophobic surface comprising providing a flexible substrate; disposing a silicon layer on the flexible substrate; using photolithography to create a textured pattern in the silicon layer on the substrate wherein the textured pattern comprises a groove structure; and chemically modifying the textured surface by disposing a conformal oleophobic coating thereon; to provide a flexible device having a superoleophobic surface. | 06-30-2011 |
