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公开(公告)号：US20210008877A1
公开(公告)日：2021-01-14
申请号：US16977912
申请日：2018-04-25
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Marc Serra Vall , M. Isabel Borrell Bayona
Abstract: An example of a printing system is disclosed. The example disclosed herein comprises a plurality of nozzles and a controller. The plurality of nozzles is to eject a printing agent on a substrate to print a print job. The controller is to receive the print job comprising an outline and a fill area to be printed. The controller is also to define a first subset of the plurality of nozzles as a first printing mode to print the outline. The controller is further to define a second subset of the plurality of nozzles as a second printing mode to print the fill area, wherein the second subset comprises more nozzles than the first subset. The controller is further to print the print job based on the first printing mode and the second printing mode.
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公开(公告)号：US20180170035A1
公开(公告)日：2018-06-21
申请号：US15883904
申请日：2018-01-30
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Marti Rius Rossell , M. Isabel Borrell Bayona , Jordi Sender Beleta
CPC classification number: B41J2/04505 , B41J2/04586 , B41J3/543 , B41J11/46 , H04N1/00702 , H04N1/00774 , H04N1/047 , H04N1/12 , H04N1/191 , H04N2201/0082 , H04N2201/04713 , H04N2201/04717 , H04N2201/04729 , H04N2201/04731 , H04N2201/04734 , H04N2201/04743 , H04N2201/04781 , H04N2201/04786 , H04N2201/04787 , H04N2201/04789 , H04N2201/04791
Abstract: A method and system of controlling at least one printbar in a printing system are described. The printing system has one or more of printbars distributed along a media transport. A first image including a reference pattern is generated on a print medium with a first printbar. A pattern is then detected on the print medium. The reference pattern and the detected pattern are used to determine a position of the first image relative to a second printbar. This position is used to configure nozzle data for a second image to be generated on the print medium by the second printbar.
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公开(公告)号：US09906686B2
公开(公告)日：2018-02-27
申请号：US15028891
申请日：2013-10-15
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Sergio Puigardeu Aramendia , Angel Martinez Barambio , Luis Garcia , M. Isabel Borrell Bayona
CPC classification number: H04N1/4052 , G06K15/1876 , G06K15/1881
Abstract: Image processing transforms input multi-level image data into output image data having a smaller number of levels (the input and output image data represents images formed of cells). The image processing distributes quantization error of a target cell of the image to neighbor cells in proportions determined by a set of weights. The distribution excludes neighbor cells whose data level is less than a threshold value from receiving distributed quantization error, or allows just a fraction of the quantization error to be distributed to such neighbor cells.
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公开(公告)号：US09895915B2
公开(公告)日：2018-02-20
申请号：US15673721
申请日：2017-08-10
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： M. Isabel Borrell Bayona , Xavier Farina Vargas , Leticia Rubio , Utpal Kumar Sarkar
IPC: B41J2/21 , G06K15/10 , B41J25/308 , B41J2/155 , B41J2/045 , B41J29/393
CPC classification number: B41J25/308 , B41J2/04505 , B41J2/04508 , B41J2/155 , B41J2/2132 , B41J2/2139 , B41J2/2146 , B41J29/393 , B41J2202/21 , G06K15/102 , G06K15/105 , G06K15/107
Abstract: Example implementations relate to swath height error compensation. Some examples may determine a density of an image to be printed in an overlap area of a printing material. The overlap area may include target pixels capable of being printed by a first set of drop ejection elements and a second set of drop ejection elements that are redundant to the first set of drop ejection elements. Some implementations may also determine a mask to apply to the first and second set of drop ejection elements based on the determined density, and the mask may designate at least one additional drop to apply to at least one target pixel in the overlap area by at least one of the first and second set of drop ejection elements. Some implementations may also apply the mask to the first set of drop ejection elements and the second set of drop ejection elements.
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公开(公告)号：US20170368855A1
公开(公告)日：2017-12-28
申请号：US15544062
申请日：2015-02-18
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Jordi Sender Beleta , Montserrat Sorano Pallarol , Marcos Casaldaliga Albisu , M. Isabel Borrell Bayona
IPC: B41J29/393 , B41J25/308
CPC classification number: B41J2/04556 , B41J2/04558 , B41J2/2146 , B41J25/308
Abstract: Examples include estimation of pen to paper spacing (PPS). Examples include an alignment pattern printed on a medium at a target speed, an optical scan procedure performed on the printed alignment pattern to determine values of cross-media misalignment for first and second portions of the alignment pattern, determination of a dynamic swath height error (DSHE) effect value based on the values of cross-media misalignment, and estimation of an amount of PPS based on the determined DSHE effect value and the target print speed.
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Patent Agency Ranking
公开(公告)号：US20160119487A1
公开(公告)日：2016-04-28
申请号：US14989512
申请日：2016-01-06
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Luis Garcia Garcia , M. Isabel Borrell Bayona , Angel Martinez Barambio , Sergio Puigardeu Aramendia
CPC classification number: H04N1/00087 , G06K15/102 , H04N1/00023 , H04N1/00034 , H04N1/6044
Abstract: According to one example, there is provided a printing system. The printing system comprises a support having a plurality of spaced apertures and a colour sensor moveable to measure light from each aperture. The printing system further comprises a controller to control the colour sensor to measure characteristics of light emitted through each aperture, and to determine, for each aperture, light calibration data.
Abstract translation: 根据一个示例，提供了一种打印系统。 打印系统包括具有多个间隔开的孔的支撑件和可移动以测量每个孔的光的颜色传感器。 打印系统还包括控制器，用于控制颜色传感器以测量通过每个孔径发射的光的特性，并且为每个孔径确定光校准数据。
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公开(公告)号：US11535029B2
公开(公告)日：2022-12-27
申请号：US16977912
申请日：2018-04-25
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Marc Serra Vall , M. Isabel Borrell Bayona
Abstract: An example of a printing system is disclosed. The example disclosed herein comprises a plurality of nozzles and a controller. The plurality of nozzles is to eject a printing agent on a substrate to print a print job. The controller is to receive the print job comprising an outline and a fill area to be printed. The controller is also to define a first subset of the plurality of nozzles as a first printing mode to print the outline. The controller is further to define a second subset of the plurality of nozzles as a second printing mode to print the fill area, wherein the second subset comprises more nozzles than the first subset. The controller is further to print the print job based on the first printing mode and the second printing mode.
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公开(公告)号：US11223746B2
公开(公告)日：2022-01-11
申请号：US16957690
申请日：2018-02-13
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Abstract: An example of a system for selecting print mode configurations is disclosed. The example disclosed herein comprises an array of nozzles to eject ink, and a controller. The controller is to instruct the array of nozzles to print a plurality of color patches, each color patch being printed using different nozzle setting values. Also, the controller is to receive a sensor signal from each color patch from a color sensor. The controller is further to derive color saturation and/or density measurement information from the sensor signals; and to select a print mode configuration based on the color saturation and/or density measurement information.
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公开(公告)号：US10391762B2
公开(公告)日：2019-08-27
申请号：US15673966
申请日：2017-08-10
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Jordi Sender Beleta , Joshua A. Mann , M. Isabel Borrell Bayona
Abstract: The present disclosure discloses a page wide array (PWA) printer (20) particularly but not exclusively for performing print jobs while maximizing print bar performance uniformity within the printer. The PWA printer includes a print bar which can be moved laterally and a controller which causes the print bar to laterally move from a first to a second position and causes the nozzles within the print bar to print an image while the print bar is in the second position without modifying the lateral alignment of the image.
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公开(公告)号：US09967406B2
公开(公告)日：2018-05-08
申请号：US14989512
申请日：2016-01-06
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Luis Garcia Garcia , M. Isabel Borrell Bayona , Angel Martinez Barambio , Sergio Puigardeu Aramendia
CPC classification number: H04N1/00087 , G06K15/102 , H04N1/00023 , H04N1/00034 , H04N1/6044
Abstract: According to one example, there is provided a printing system. The printing system comprises a support having a plurality of spaced apertures and a color sensor moveable to measure light from each aperture. The printing system further comprises a controller to control the color sensor to measure characteristics of light emitted through each aperture, and to determine, for each aperture, light calibration data.
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