Patents Assigned to Hewlett-Packard Development Company
  • Publication number: 20190278902
    Abstract: A non-transitory memory storing a digital signature of a consumable product where the digital signature indicates that an identifier and host device setting data are from a trusted source.
    Type: Application
    Filed: May 28, 2019
    Publication date: September 12, 2019
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Paul L. Jeran, Stephen D. Panshin, Jefferson P. Ward
  • Publication number: 20190276690
    Abstract: The present disclosure relates to an inkjet printing process that comprises applying a radiation-curable primer composition onto a substrate to form a primer layer. The primer composition comprises a curable polyurethane dispersion, a photoinitiator and water. An inkjet ink composition is inkjet printed onto the primer layer as a printed inkjet ink layer. The inkjet ink composition comprises a colorant, a curable polyurethane dispersion, a photoinitiator and water. The curable polyurethane is dispersed in the inkjet ink composition in an amount of composition is 0.1 to 30 weight % of the inkjet ink composition. The printed inkjet ink layer is cured on the substrate by exposing both the primer layer and printed inkjet ink layer on the substrate to radiation.
    Type: Application
    Filed: January 31, 2017
    Publication date: September 12, 2019
    Applicant: Hewlett-Packard Development Company, L.P
    Inventors: Zhang-Lin Zhou, Rodney David STRAMEL, Tao CHEN, Bor-Jiunn NIU, Gregg A. LANE
  • Publication number: 20190276695
    Abstract: The present disclosure relates to an Inkjet printing process that comprises inkjet printing an inkjet ink composition onto a substrate to form a printed inkjet ink layer. The inkjet ink composition comprises a colorant, a curable polyurethane dispersion, a photoinitiator and water, wherein the amount of curable polyurethane dispersed in the inkjet ink composition is 0.1 to 30 weight %. A radiation-curable overcoat composition is applied over the printed inkjet ink layer as an overcoat layer. The overcoat composition comprises a curable polyurethane dispersion, a photoinitiator and water. The printed inkjet ink layer is then cured on the substrate by exposing both the overcoat layer and inkjet ink layer on the substrate to radiation.
    Type: Application
    Filed: January 31, 2017
    Publication date: September 12, 2019
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Zhang-Lin ZHOU, Rodney David STRAMEL, Bor-Jiunn NIU
  • Publication number: 20190281191
    Abstract: An example method of setting ink limits for a printing system is described. The method involves printing a first set of color ramps. Each color ramp has test areas which are printed based different Neugebauer Primary Area Coverage (NPac) vectors. A test area for each color ramp is indicated that meets an image quality metric and Neugebauer Primary ink use limits are set based on these test areas. A second set of color ramps, for combinations of the set of available Neugebauer Primaries, is then printed, The test areas for each ramp are defined by monotonically-varying vector element values for one Neugebauer Primary in a combination and the second set of ramps are defined by monotonically-varying vector element values across said ramps for another Neugebauer Primary in a the combination. Test areas are then indicated again for the second set of color ramps to set ink use limits for the printing system.
    Type: Application
    Filed: October 26, 2016
    Publication date: September 12, 2019
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Peter Morovic, Jan Morovic
  • Publication number: 20190278535
    Abstract: An image forming device includes a communication unit to transmit data to and receive data from an external device, an image forming job unit to perform printing, and a controller to control warming up of the image forming job unit to perform the printing, such that the image forming job unit performs the printing after the warming up is completed. The controller is to receive a print execution request to perform the printing and a predicted value of a print preparation time for the image forming device to create output image data, to perform the printing, from the external device via the communication unit, determine a warm-up start time of when to start the warming up of the image forming job unit by using the received predicted value of the print preparation time, and control the image forming job unit to start the warming up at the determined warm-up start time.
    Type: Application
    Filed: May 24, 2019
    Publication date: September 12, 2019
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Mi-kyung Choi, Woo-chul Shin, Jun-young Choi
  • Publication number: 20190275739
    Abstract: In an example, a method includes identifying, within data for use in printing, a first element set associated with a first print addressable area, wherein elements of the element set are each associated with a print instruction. An element may be selected from the first element set and assigned to the first print addressable area. A second print addressable area may be identified as a candidate print addressable area for error diffusion, the second print addressable area being associated with a second element set. An error associated with the selection of the element from the first element set is scaled based on a criterion and may be diffused to elements of the second element set.
    Type: Application
    Filed: September 27, 2016
    Publication date: September 12, 2019
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Jan Morovic, Peter Morovic
  • Publication number: 20190276584
    Abstract: The present disclosure is drawn to a reactive polyurethane dispersion including a polymer strand having a polymer backbone that has two ends terminating at a first capping unit and a second capping unit. The polymer backbone can include polymerized monomers including a reactive diol and a diisocyanate. The reactive diol can be an acrylate-containing diol, a methacrylate-containing diol, an allyl-containing diol, or combination thereof. The first capping unit can be an allyl-containing monoalcohol reacted with an isocyanate group of the diisocyanate. The second capping unit can be an ionic stabilizing group.
    Type: Application
    Filed: January 31, 2017
    Publication date: September 12, 2019
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Zhang-Lin ZHOU, Rodney David STRAMEL, Gregg A. LANE
  • Publication number: 20190276482
    Abstract: The present disclosure is drawn to a photo active agent which includes a bisacylphosphinic compound in the form of an acid or salt having Structure I: where A and A? are independently aryl or from C2 to C8 lower alkyl; M is H, a monovalent cation, a divalent cation, or mixture thereof; n is 1 or 2; and q is 1 or 2. The photo active agent can be present in a composition that includes from 0.001 wt % to 5 wt % of a dialcohol phosphinic acid precursor or dialcohol phosphinic salt of the bisacylphosphinic compound of Structure I.
    Type: Application
    Filed: April 3, 2017
    Publication date: September 12, 2019
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Zhang-Lin ZHOU, Marisa SAMOSHIN, Rodney David STRAMEL
  • Patent number: 10412235
    Abstract: In an embodiment, an authentication system includes a supply device having a data storage chip with identification (ID) bit memory cells. The ID bit memory cells comprising a measured cell, pointer cells to store address information that points to the measured cell, and analog cells that store factory-measured analog information about the measured cell.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: September 10, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Huston W. Rice, David B. Novak, Erik D. Ness, Brendan Hall
  • Patent number: 10409263
    Abstract: A method of diffusing an error in three-dimensional contone model data includes generating halftone data for a slice among a number of slices of the three-dimensional contone model data, generating compensatory error values based on the generated halftone data, and adding the generated compensatory error values to contone data for a successive slice.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: September 10, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: David H. Donovan
  • Patent number: 10407271
    Abstract: In some examples, a controller receives an indication from the printing system to initiate a calibration. In response to the indication, the controller activates a sensor assembly as part of a calibration operation that comprises emitting a signal toward a calibration surface of the media output accumulator, and detecting a reflected signal responsive to the emitted signal. The controller calibrates the sensor assembly based on the reflected signal, the sensor assembly to detect a level of media sheets, ejected by the printing system, into the media output accumulator.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: September 10, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventor: Elliott Downing
  • Patent number: 10409854
    Abstract: Examples disclosed herein relate to selecting an image based on text topic and image explanatory value. In one implementation, a processor selects an image to associate with a text based on a criteria indicating the explanatory value of a context information related to the image in relation to the topic of the text. The processor may output the selected image.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: September 10, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Lei Liu, Jerry Liu, Shanchan Wu, Hector A Lopez
  • Patent number: 10412269
    Abstract: In one example in accordance with the present disclosure a printer cartridge and memory device containing a representation of a compressed multi-dimensional color table is described. The color table includes at least one low dimensional portion of the multi-dimensional color table storing color transformation information at a first resolution and a number of remaining portions of the multi-dimensional color table storing color transformation information at a second resolution. In the color table, the first resolution is greater than the second resolution and the at least one compressed multi-dimensional color table is to generate a high resolution uncompressed multi-dimensional color table the high resolution being at least as great as the first resolution.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: September 10, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Jay S. Gondek, Stephen J. Nichols, Jefferson P. Ward
  • Patent number: 10409143
    Abstract: An example system, including a projector unit, an all-in-one computer attachable to the projector unit, a camera communicatively coupled to the all-in-one computer, and a touch sensitive mat communicatively coupled to the all-in-one computer. The projector unit projects an image on to the touch sensitive mat, and the touch sensitive mat comprises an optical pattern used to track a handheld device interacting with the image.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: September 10, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: David Bradley Short, Roya Susan Akhavain, Jeff Borra
  • Patent number: 10406744
    Abstract: At least one agent distributor may be to selectively deliver coalescing agent onto portions of a layer of build material at a first density and at a second density lower than the first density. A controller may be to control the at least one agent distributor to selectively deliver the coalescing agent at the first and second densities onto respective first and second portions of the layer in respective first and second patterns derived from data representing the three-dimensional object to be generated, so that when energy is applied to the layer the build material may coalesce and solidify to form a slice of the three-dimensional object in accordance with the first pattern. The second portion may be in proximity to a boundary of the first portion. Presence of the coalescing agent in the second portion may be to prevent at least some heat from flowing away from the first portion when the energy is applied.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: September 10, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Bernardo A. Gutierrez, Jacob T. Wright, Michael A. Novick
  • Patent number: 10406844
    Abstract: According to examples, an apparatus may include a processor and a memory. The memory may have stored thereon machine readable instructions that when executed by the processor, may cause the processor to determine a job thickness of a print job including sheets, determine an average sheet thickness of the sheets, and determine an average print material coverage on the sheets. The instructions may also cause the processor to identify, based on the determined job thickness, the determined average sheet thickness, and the average print material coverage, a plurality of correction factors to be applied in a calculation of a corrected stack height of print jobs in an output bin and apply the identified plurality of correction factors to a measured stack height in the output bin to calculate the corrected stack height.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: September 10, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Alan Hayes, Elliott Downing, Bruce G. Johnson
  • Publication number: 20190270330
    Abstract: A printable recording media comprising a supporting base substrate and a coating layer that contains a fixative agent and a binder system including a combination of water soluble binder and water dispersible binder. Also, described herein, is a method for making said printable recording media.
    Type: Application
    Filed: March 29, 2017
    Publication date: September 5, 2019
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Tao Chen, Xulong FU
  • Publication number: 20190270302
    Abstract: In example implementations, a system is provided. The system includes at least one fluid ejection apparatus, a heater and an energy source. The at least one fluid ejection apparatus dispenses a de-contented fluid onto a substrate during conveyance of the substrate. The heater is arranged after the at least one fluid ejection apparatus along a substrate conveying path. The heater removes a liquid from the de-contented fluid on the substrate such that the particles of the de-contented fluid remain on the substrate. The energy source is arranged after the heater along the substrate conveying path. The energy source applies energy to the substrate during the conveyance of the substrate to heat the substrate to a temperature that is approximately a melting temperature of the substrate to fuse the particles on the substrate to the substrate.
    Type: Application
    Filed: October 12, 2016
    Publication date: September 5, 2019
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Yubai Bi, Guillermo Martinez Ariza
  • Publication number: 20190270306
    Abstract: Examples are provided to methods to dynamically control the timing of a printing fluid drop ejection to deposit printing fluid on a print zone of a substrate. The examples may also provide measuring a height profile of a pre-print zone.
    Type: Application
    Filed: January 27, 2017
    Publication date: September 5, 2019
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Juan Uroz Soria, Santiago Sanz Ananos
  • Publication number: 20190270303
    Abstract: A web press system including a first printbar, a first sensor, a second printbar, a second sensor, and a controller. The first printbar prints first user content on a first side of a web of media. The first sensor senses a pattern on the web of media and provides first sensor data as the first printbar prints the first user content. A second printbar prints second user content on the first side of the web of media. The second sensor senses the pattern on the web of media and provides second sensor data as the second printbar prints the second user content. The controller determines an amount of expansion of the web of media in a direction perpendicular to a web advanced direction based on the first sensor data and the second sensor data and modifies printing performed by the second printbar based on the amount of expansion.
    Type: Application
    Filed: May 17, 2019
    Publication date: September 5, 2019
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Cesar Fernandez Espasa, Santiago Garcia-Reyero Vinas, Jose Galmes