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.

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.

公开(公告)号：US20220105721A1

公开(公告)日：2022-04-07

申请号：US17418995

申请日：2019-06-05

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Andreu Vinets Alonso ,  Antonio Gracia Verdugo ,  Josep Maria Bel Calavia ,  Jordi Bas Ferrer

IPC: B41J2/045 ,  B41J2/165

Abstract: The present disclosure refers to servicing printing systems, wherein the system comprises a controller to: instruct an ejection of printing fluid from each of the nozzles within a printhead; detect, by a drop detector, drops ejected from each nozzle; determine by the controller a drop time for each nozzle, being the drop time determined between the instruction of the ejection of printing fluid from each of the nozzles until the drops ejected by each of the nozzles reaches the drop detector; and determine a nozzle health parameter in view of each nozzle drop time; wherein the method comprises comparing each nozzle health parameter with a threshold value and instructing, by the controller, a servicing operation if the nozzle health parameter is outside a threshold range.

公开(公告)号：US20220024201A1

公开(公告)日：2022-01-27

申请号：US17311053

申请日：2018-12-17

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Javier Castro Soriano ,  Ruben Recasens Oros ,  Jordi Bas Ferrer

IPC: B41J2/045

Abstract: In an example, a method for compensating a misalignment introduced by a printing process comprises printing a plurality of first symbols onto a print media with a first printing liquid at spaced-apart locations on the print media, printing a plurality of second symbols onto the print media with a second printing liquid such that each second symbol overlaps a corresponding first symbol by a different symbol offset amount, identifying a first symbol and the corresponding second symbol, and the respective symbol offset amount, that represent a correct alignment between the plurality of first symbols and the plurality of second symbols, and adjusting a print parameter according to the identified symbol offset amount.

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

IPC: H04N1/60 ,  G06K15/10 ,  B41F33/16 ,  B41L39/16 ,  G06K15/02

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.

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.

公开(公告)号：US12109822B2

公开(公告)日：2024-10-08

申请号：US17634202

申请日：2019-09-09

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Jordi Bas Ferrer

IPC: B41J2/21 ,  B41J2/165 ,  B41J3/407 ,  B41J11/00 ,  B41M5/00

CPC classification number: B41J2/2114 ,  B41J2/16526 ,  B41J2/2117 ,  B41J3/4078 ,  B41J11/0015 ,  B41M5/0011 ,  B41J2/16505 ,  B41J2/16529 ,  B41J3/407

Abstract: It is hereby disclosed a textile printing method comprising a controller to: receive a print job; and determine a print area of a garment based on the print job; wherein the controller is to instruct a printhead comprising a pre-treatment liquid to eject a pre-treatment liquid in a pre-treatment area of the garment being the pre-treatment area associated to the print area; and to instruct a printhead comprising printing fluid to print the print job on the print area.

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.

Inventor： M. Isabel Borrell Bayona ,  Alex Campa Coloma ,  Jordi Bas Ferrer ,  Adria Gallart del Burgo

IPC: H04N1/60 ,  B41J2/21

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.