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公开(公告)号：US11305544B2
公开(公告)日：2022-04-19
申请号：US16959500
申请日：2018-01-31
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Adria Gallart del Burgo , Alex Campa Coloma , Maria Isabel Borrell Bayona , Jordi Bas Ferrer
IPC: B41J2/165
Abstract: There is disclosed a method comprising determining, by a processor, if there are consecutive nozzles of a print apparatus that are occluded by a contaminant; and, when a predetermined number of consecutive nozzles are occluded, automatically triggering a cleaning operation to at least partially remove the contaminant.
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公开(公告)号：US20210006687A1
公开(公告)日：2021-01-07
申请号：US16978328
申请日：2018-04-30
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Peter Morovic , Jan Morovic , Victor Diego Gutierrez , Alex Campa Coloma , Javier Maestro Garcia
Abstract: In an example a method includes deriving a print agent coverage vector specifying an area coverage for each of a plurality of elements, wherein each element is associated with a print agent, a print agent combination or an absence of print agent. Deriving the print agent coverage vector comprises, for a first element of the print agent coverage vector, applying a first weighting function which varies based on an intended area color value.
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Patent Agency Ranking
公开(公告)号：US11305535B2
公开(公告)日：2022-04-19
申请号：US16977234
申请日：2018-03-21
Applicant: Hewlett-Packard Development Company, L.P. , Alex Campa Coloma , Jordi Bas Ferrer , Adria Gallart del Burgo , Maria Isabel Borrell Bayona
Inventor： Alex Campa Coloma , Jordi Bas Ferrer , Adria Gallart del Burgo , Maria Isabel Borrell Bayona
IPC: B41J2/14
Abstract: In an example print system including a mask engine and print engine, the mask engine is able to cause generation of print masks with disabled sections that are non-overlapping. In an example method of printing, a number of passes over a zone of media is identified, a plurality of print masks corresponding to the zone are generated with a disabled section of pixels that are non-overlapping, and the number of passes are printed based on the plurality of masks such that the disable pixels in each print mask are in a different relative position with respect to a location of the media.
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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：US11604954B2
公开(公告)日：2023-03-14
申请号：US17051420
申请日：2018-08-02
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Adria Gallart Del Burgo , Alex Campa Coloma , Jordi Bas Ferrer , M.Isabel Borrell Bayona , Andreu Gonzalez Oliva , Marti Rius Rossell
Abstract: Example implementations provide a controller for controlling printing of a printer, the controller comprising: an input interface for accessing an image to be printed; an image processor to identify at least one selected feature within the image; and circuitry: a. to control printing of said at least one selected feature using a respective print operation; and b. to control printing of said image, other said at least one selected feature, using a further respective print operation; c. said respective print operation being different to said further respective print operation.
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公开(公告)号：US11057545B2
公开(公告)日：2021-07-06
申请号：US16978328
申请日：2018-04-30
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Peter Morovic , Jan Morovic , Victor Diego Gutierrez , Alex Campa Coloma , Javier Maestro Garcia
Abstract: In an example a method includes deriving a print agent coverage vector specifying an area coverage for each of a plurality of elements, wherein each element is associated with a print agent, a print agent combination or an absence of print agent. Deriving the print agent coverage vector comprises, for a first element of the print agent coverage vector, applying a first weighting function which varies based on an intended area color value.
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公开(公告)号：US20210039386A1
公开(公告)日：2021-02-11
申请号：US16977234
申请日：2018-03-21
Applicant: Alex CAMPA COLOMA , Jordi BAS FERRER , Adria GALLART DEL BURGO , Maria Isabel BORRELL BAYONA , Hewlett-Packard Development Company, L.P.
Inventor： Alex Campa Coloma , Jordi Bas Ferrer , Adria Gallart del Burgo , Maria Isabel Borrell Bayona
IPC: B41J2/14
Abstract: In an example print system including a mask engine and print engine, the mask engine is able to cause generation of print masks with disabled sections that are non-overlapping. In an example method of printing, a number of passes over a zone of media is identified, a plurality of print masks corresponding to the zone are generated with a disabled section of pixels that are non-overlapping, and the number of passes are printed based on the plurality of masks such that the disable pixels in each print mask are in a different relative position with respect to a location of the media.
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