Patent application number | Description | Published |
20090002471 | CHARGE SPREADING STRUCTURE FOR CHARGE-EMISSION APPARATUS - An apparatus includes a generator electrode, a discharge electrode that has an aperture, a dielectric structure between the generator electrode and the discharge electrode, and a charge spreading structure. The dielectric structure includes a charging region under the aperture. The charge spreading structure is on a surface of the charging region facing the aperture. The charge spreading structure is electrically disconnected from the generator electrode and the discharge electrode and spreads electrical charge carriers over underlying areas of the charging region. | 01-01-2009 |
20100225919 | Determining Solid Concentration of an Ink - The present disclosure is drawn to methods, devices, and systems for determining solid content of inks, including a device comprising a chamber configured to hold an ink sample having ionic particulates in a liquid vehicle, a first opening in the chamber for filling the chamber with the ink sample, a second distinct opening in the chamber for removal of the liquid vehicle, a deposition electrode at least partially defining the chamber, a counter electrode, a power supply connected to the deposition electrode and the counter electrode for creating an electric field inside the chamber, and a densitometer optically coupleable to the deposition electrode for measuring the optical density of ionic particulates. Additionally, the device can be operable to separate the ionic particulates from the liquid vehicle by deposition of the ionic particulates at the deposition electrode and/or the device can be operable to measure the optical density of the ionic particulates after migration to the deposition electrode. | 09-09-2010 |
20110050764 | HARD IMAGING DEVICE AND METHOD THEREOF - An imaging method includes coating a transfer member with an adhesion promoter in a liquid state, changing the adhesion promoter on the transfer member from the liquid state to at least one of a solid state and a gel state, depositing a liquid marking agent on the solidified adhesion promoter corresponding to an image, changing a state of the adhesion promoter from the solid state to the flowable state, and transferring the liquid marking agent and the adhesion promoter in the flowable state from the transfer member to a substrate to form a hard version of the image thereon. | 03-03-2011 |
20110216126 | APPARATUS FOR CAPTURING AEROSOLS - Apparatus for capturing aerosols are disclosed. An example apparatus described herein includes a corona wire, and a nonconductive housing comprising a first cavity to expose a first portion of the corona wire, a second cavity to expose a second portion of the corona wire, and a chamber between the first and second cavities. A third portion of the corona wire is located within the chamber between the first and second portions of the corona wire. | 09-08-2011 |
20110298760 | SYSTEMS AND METHODS FOR WRITING ON AND USING ELECTRONIC PAPER - Embodiments of the present invention are directed to systems and methods for writing on electronic paper (“e-paper”) and display platforms implemented with e-paper. In one aspect, a system for writing information to electronic paper includes a writing module and an erasing unit connected to the writing module. The erasing unit is configured to erase information stored in the electronic paper. The system also includes a writing unit connected to the writing module and is configured to write information to the electronic paper. Information is written to the electronic paper by orienting the writing module so that the electronic paper passes the erasing unit prior to passing the writing unit. | 12-08-2011 |
20120012018 | REFLECTION DENSITOMETER - A method for determining optical density is disclosed. A first measurement is taken on a white area of a substrate ( | 01-19-2012 |
20120019604 | INKJET PRINTERS, INK STREAM MODULATORS, AND METHODS TO GENERATE DROPLETS FROM AN INK STREAM - Ink jet printers, ink stream modulators, and methods to generate droplets from an ink stream are disclosed. An example method to generate droplets from an ink stream includes generating a stream of ink with an inkjet nozzle and modulating the stream of ink into a plurality of droplets by generating an alternating electrical field having a frequency based on a permittivity of the ink to cause a dielectrophoretic effect. | 01-26-2012 |
20120026224 | INK COMPOSITION, DIGITAL PRINTING SYSTEM AND METHODS - An ink composition has controlled conductivity, and a digital printing system and a method of printing an ink employ an offset inkjet printing platform. The ink composition includes pigment particles dispersed in an oil-based dielectric carrier fluid with an oil-soluble dispersant. A concentration of dispersant is a fraction of a concentration of the pigment particles sufficient to render an electrical conductivity of the ink composition less than 100 pico Siemens per centimeter (pS/cm). The printing system includes an ink having an electrical conductivity less than or equal to about 300 pS/cm, an inkjet print head, a transfer medium, a developer, a remover and an image transferer. In the method of printing, the ink is nonelectrostatically jetted to the transfer medium, and developed into a fixed image. A portion of a supernatant is removed from the fixed image, and the fixed image is transferred to a media substrate. | 02-02-2012 |
20120113206 | PRINTHEAD FABRICATION METHODS AND PRINTHEADS - Printhead fabrication methods and printheads are described. According to one aspect, a printhead fabrication method includes providing a spacer layer | 05-10-2012 |
20120154480 | OIL-BASED INK JET INKS - The present disclosure is drawn to an oil-based ink jet ink comprising a non-aqueous, oil-based liquid vehicle having a conductivity of less than less than 50 pS/cm; from 3 wt % to 12 wt % of a pigment; from 0.5 wt % to 6 wt % of a dispersant; and from 0.001 wt % to 0.5 wt % of a high molecular weight polymer that is partially or fully solubilized in the liquid vehicle, and having a weight average molecular weight from 50,000 to 5,000,000 Mw. | 06-21-2012 |
20120206341 | Presenting Information on a Card with a Passive Electronic Paper Display - With a card including a passive electronic paper display configured to display a visual image, a method of presenting information on a card includes selectively changing a visual image displayed on the passive electronic paper display to update information represented by the visual image, and wherein the card is sized to be carried by a user. | 08-16-2012 |
20120304878 | IMAGING DEVICES - An imaging device can include an imaging drum to support a carrier fluid. A roller can remove a portion of the carrier fluid from the imaging drum. A fluid container can collect the carrier fluid from the roller. A fluid remover on the container can be used to remove the carrier fluid from the roller. | 12-06-2012 |
20120320001 | ELECTRONIC PAPER WITH SEMICONDUCTING COATING - An electronic paper device includes a ground plane, a semi-conducting layer in electrical communication with the ground plane, and an active layer interposed between the ground plane and semiconducting layer. The active layer includes a plurality of microcapsules containing charged pigments. A method for writing to electronic paper is also presented. | 12-20-2012 |
20130003162 | ELECTRONIC PAPER WITH POROUS STANDOFF LAYER - An electronic paper device includes a ground plane, a charge receiving layer, and a porous stand off layer disposed over the charge receiving layer. An active layer is interposed between the ground plane and the charge receiving layer, the active layer including a plurality of microcapsules containing charged pigments. A system for writing information to electronic paper is also provided. | 01-03-2013 |
20130038665 | PRINTING SYSTEM - A printing system ( | 02-14-2013 |
20130070231 | IMAGE FORMING APPARATUS HAVING OPTICAL SENSOR SYSTEM, OPTICAL SENSOR SYSTEM HAVING HEATING MODULE, AND METHOD THEREOF - An optical sensor system is disclosed including a source module, a detection module, and a heating module. The source module includes a source housing unit having a source window member to emit a detection signal through the source window member. The detection module includes a first detection housing unit having a first detection window member spaced apart from the source module. The detection signal received by the detection module corresponds to an amount of volatile organic compounds (VOC) present in a path of the detection signal between the detection module and the source module. The heating module heats the source window member and the detection window member to remove deposit formation of the VOC there from. | 03-21-2013 |
20130070233 | IMAGE FORMING APPARATUS HAVING OPTICAL SENSOR SYSTEM, OPTICAL SENSOR SYSTEM HAVING SHIELDS, AND METHOD THEREOF - An optical sensor system includes a source module and a detection module. The source module includes a source housing unit having a source window member and a source shielding member. The source module emits a detection signal through the source window member. The detection module includes a detection housing unit having a detection window member and a detection shielding member. The detection module is spaced apart from the source module. The detection module detects the detection signal emitted from the source module at the detection window member. | 03-21-2013 |
20130070248 | IMAGE FORMING APPARATUS HAVING OPTICAL SENSOR SYSTEM, OPTICAL SENSOR SYSTEM HAVING DETECTION MODULES, AND METHOD THEREOF - An optical sensor system is disclosed including a source module, a first detection module, and a second detection module. The source module includes a source housing unit having a source window member. The source module may emit a detection signal through the source window member. The first detection module and the second detection module are spaced apart from the source module. | 03-21-2013 |
20130099798 | MEASUREMENT DEVICE AND METHOD THEREOF - Measurement devices, systems, and methods to measure a high field conductivity of a fluid are provided herein. The measurement device includes a fluid cell, a pair of electrodes, a voltage switch, and a measurement unit. The fluid cell is on an inclined plane to receive the fluid. The pair of electrodes are connected to the fluid cell. The pair of electrodes are spaced apart from one another to receive the fluid therebetween and positioned parallel to one another to pass an electrical current therethrough. The power unit provides a high voltage power supply to one electrode of the pair of electrodes. The measurement unit measures the electrical current that passes between the pair of electrodes through the fluid. | 04-25-2013 |
20130215194 | PRINTERS, METHODS, AND APPARATUS TO REDUCE AEROSOL - Printers, methods, and apparatus to reduce aerosol are disclosed. An example apparatus to reduce aerosol includes a print head ( | 08-22-2013 |
20130235446 | TECHNIQUES FOR PROTECTING IMAGING ACCESS OF ELECTRONIC PAPER - Techniques for protecting imaging access of electronic paper are described herein. For example, an electronic paper device with protected imaging access includes a substrate, an e-paper surface disposed on the substrate, a removable cover to prevent alteration of the e-paper surface when the cover is disposed over the e-paper surface, and a reversible locking mechanism engaging with the cover to secure the cover in place over the e-paper surface. A method for secure writing to e-paper is also provided. | 09-12-2013 |
20130271516 | HARD IMAGING DEVICE AND METHOD THEREOF - An imaging method includes coating a transfer member with an adhesion promoter in a liquid state, changing the adhesion promoter on the transfer member from the liquid state to at least one of a solid state and a get state, depositing a liquid marking agent on the solidified adhesion promoter corresponding to an image, changing a state of the adhesion promoter from the solid state to the flowable state, and transferring the liquid marking agent and the adhesion promoter in the flowable state from the transfer member to a substrate to form a hard version of the image thereon. | 10-17-2013 |
20130271517 | ROTATABLE PRINTHEAD ASSEMBLY - A printing assembly includes a pressure control tank and a printhead assembly. The printhead assembly is in fluid communication with the pressure control tank while the printhead assembly and the pressure control tank are selectively rotatable into a plurality of different positions relative to one another. | 10-17-2013 |
20130305958 | EMULSION-BASED THERMAL INKJET INKS - Emulsion-based thermal inkjet inks include a high boiling point carrier fluid; a colorant; and vesicles comprising a low boiling point expellant fluid, and an ionic surfactant comprising molecules, each having a head with affinity to expellant fluid material and a tail with affinity to carrier fluid, the vesicles having a core defined by the heads of the surfactant molecules, the expellant fluid contained in the core, with the vesicles dispersed in the carrier fluid. A method for preparing the thermal inkjet inks is also disclosed. | 11-21-2013 |
20140092174 | TECHNIQUES RELATED TO SATELLITE AEROSOLS - Examples described herein illustrate techniques related to satellite aerosol generation. In some examples, aerosols are sensed based on the interaction between satellite aerosols and a corona discharge from a corona source. | 04-03-2014 |
20140150680 | APPARATUS, PRINTERS, AND METHODS TO REMOVE MATERIAL FROM A PRINTER SURFACE - Apparatus, printers, and methods to remove material from a printer surface are disclosed. An example apparatus includes a fluid remover to remove printing material from a printer surface, and a coating material reservoir to store coating material and to apply the coating material to the fluid remover to reduce an amount of printing material transferred to the fluid remover from the printer surface. | 06-05-2014 |
20140210805 | E-PAPER PRINTING SYSTEM - An e-paper printing system comprising a set of electrodes comprising a number of electrodes to erase a portion of e-paper as the e-paper moves relative to the set of electrodes in which the set of electrodes causes a first electric field to be applied to the e-paper with a magnitude of the first electric field increasing at a first rate sufficiently high to cause the erasure of the portion of the e-paper, and causes a second electric field to be applied to the e-paper with a magnitude of the second electric field decreasing at a second rate that is sufficiently low to preserve the erasure of the portion of the e-paper. | 07-31-2014 |
20140240299 | SYSTEMS AND METHODS FOR WRITING ON AND USING ELECTRONIC PAPER - Example systems and methods for writing on electronic paper (“e-paper”) are described. In one example, a system for writing information on electronic paper includes a writing module comprising an array of electrodes. The writing module is configured to selectively operate one or more electrodes in the array of electrodes to write information on the electronic paper. The system also includes a compliant mechanism coupled to the writing module to establish contact between the writing module and the electronic paper. | 08-28-2014 |
20140318447 | COATING LIQUID DISPENSERS - A coating system includes a leveling element and a dispenser assembly. The leveling element extends generally transverse to a substrate advance orientation and is releasably engageable against a substrate support. The dispenser assembly includes an array of side-by-side independent liquid dispensers and an air pressure assembly to supply a common air pressure to each dispenser to cause pressurized dispensing of a coating liquid from each dispenser onto a substrate on the substrate support. The liquid dispensing occurs at least during relative movement between the dispenser assembly and the substrate support and during the relative movement, the leveling element is actuated to uniformize the coating liquid on the substrate. | 10-30-2014 |