公开(公告)号：US20230144915A1

公开(公告)日：2023-05-11

申请号：US17996903

申请日：2020-04-24

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

Inventor： Javier MAESTRO GARCIA ,  Marti RIUS ROSSELL ,  Joan VIDAL FORTIA ,  Peter MOROVIC

IPC: H04N1/52 ,  H04N1/60

CPC classification number: H04N1/52 ,  H04N1/6075

Abstract: Certain examples described herein relate to halftone level adjustment for Neugebauer Primaries (NPs). In certain examples, halftone levels for NPs are obtained for a halftone for printing an image. It is determined whether the halftone corresponds to a line or an area fill. The halftone levels may be adjusted in response to these levels exceeding a printing attribute threshold. The printing attribute threshold may be dependent on whether the halftone corresponds to a line or an area fill. The image may then be printed using the adjusted halftone levels.

公开(公告)号：US20170032225A1

公开(公告)日：2017-02-02

申请号：US15294759

申请日：2016-10-16

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

Inventor： Peter MOROVIC ,  Jan MOROVIC ,  Montserrat SOLANO PALLAROL ,  Marti RIUS ROSSELL ,  Juan MANUEL GARCIA REYERO VINAS

IPC: G06K15/02 ,  H04N1/60

CPC classification number: G06K15/027 ,  B41J2/2146 ,  B41J29/38 ,  B41J29/393 ,  G06F3/12 ,  G06K2215/0094 ,  G06K2215/101 ,  H04N1/6008 ,  H04N1/6038 ,  H04N1/605

Abstract: A calibration target is disclosed. The calibration target is created such that a color patch is sensitive to drop weight changes based on drop weight variations that show greater changes in color for a given change in drop weight.

Abstract translation: 公开了一种校准目标。 创建校准目标，使得色标对于基于对于给定的重量变化显示更大的颜色变化的液滴重量变化而对重量变化敏感。

公开(公告)号：US20160086059A1

公开(公告)日：2016-03-24

申请号：US14787409

申请日：2013-07-23

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Peter MOROVIC ,  Jan MOROVIC ,  Montserrat SOLANO PALLAROL ,  Marti RIUS ROSSELL ,  Juan MANUEL GARCIA REYERO VINAS

IPC: G06K15/02 ,  B41J29/38 ,  H04N1/60

CPC classification number: G06K15/027 ,  B41J2/2146 ,  B41J29/38 ,  B41J29/393 ,  G06F3/12 ,  G06K2215/0094 ,  G06K2215/101 ,  H04N1/6008 ,  H04N1/6038 ,  H04N1/605

Abstract: A calibration target is disclosed. The calibration target is created such that a color patch is sensitive to drop weight changes.

Abstract translation: 公开了一种校准目标。 创建校准目标，使得色标对于减轻重量变化敏感。

公开(公告)号：US20240210870A1

公开(公告)日：2024-06-27

申请号：US18594405

申请日：2024-03-04

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

Inventor： Martin URRUTIA NEBREDA ,  Marti RIUS ROSSELL

IPC: G03G15/00 ,  B65H7/06

CPC classification number: G03G15/6567 ,  B65H7/06 ,  B65H2511/24 ,  B65H2553/51 ,  B65H2553/82 ,  B65H2557/61 ,  B65H2801/03

Abstract: According to some examples, a skew detection device comprises a first roller rotatable around a first axis, a second roller rotatable around a second axis, a first sensor, and a second sensor. The first sensor measures a first rotation parameter from the first roller and the second sensor measures a second rotation parameter from the second roller. A movement of a print media over the device rotates the first contact roller and the second roller, and a controller determines a skew of the print media based on the first and second rotation parameters captured by the first sensor and the second sensor.

公开(公告)号：US20240140106A1

公开(公告)日：2024-05-02

申请号：US18051369

申请日：2022-10-31

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

Inventor： Victor SERRA FERNANDEZ ,  Marti RIUS ROSSELL ,  Leyre HERNANDEZ MARTINEZ

IPC: B41J2/21 ,  B41J19/14

CPC classification number: B41J2/2135 ,  B41J19/145

Abstract: Systems, apparatuses, and methods may provide for technology that calibrates a printer alignment. Such calibration includes determining a tilt value for individual columns. A difference is determined between a first set of alignment values of nozzles of a first column of the trench and a second set of alignment values of nozzles of a second column of the trench. A dot offset value is determined based on the difference between the first and second set of alignment values of nozzles of the first and second columns. A top nozzle alignment value of the second column adjusted based on a difference compared against the first set of alignment values of nozzles of the first column and based on the dot offset value.

公开(公告)号：US20240300235A1

公开(公告)日：2024-09-12

申请号：US18180340

申请日：2023-03-08

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

Inventor： Raul RODRIGUEZ ALONSO ,  Marti RIUS ROSSELL ,  Leyre HERNANDEZ MARTINEZ ,  Victor SERRA FERNANDEZ

IPC: B41J2/045 ,  B41J3/54 ,  B41J11/00

CPC classification number: B41J2/04505 ,  B41J3/543 ,  B41J11/008

Abstract: An interferential pattern is printed to a print media using an upper row die. A first portion of an additional interferential pattern is printed to a print media using a lower row die. A second portion of the additional interferential pattern is printed to the print media using the upper row die. An alignment error between the upper row die and the lower row die is determined based on interferential pattern and the additional interferential pattern.

公开(公告)号：US20210224621A1

公开(公告)日：2021-07-22

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: G06K15/10 ,  G06K15/02 ,  B41L39/16 ,  B41F33/16

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：US20150298474A1

公开(公告)日：2015-10-22

申请号：US14646307

申请日：2012-11-29

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Marti RIUS ROSSELL ,  Peter MOROVIC ,  Jan MOROVIC

IPC: B41J29/38

CPC classification number: B41J29/38 ,  B41J2/16526 ,  H04N1/60

Abstract: A method for printing, comprising: obtaining an imaging matrix, in which each row or each column of cells is associated with at least a nozzle of a printhead, and in which each cell contains an initial value of a parameter which is related to an amount of ink to be deposited on the print medium; dividing the imaging matrix into at least two subsets of cells, such that each cell of the matrix belongs to one of said subsets; associating with each subset of cells a conversion function; obtaining a converted imaging matrix by applying to the initial value in each cell the function that corresponds to the subset to which the cell belongs; and printing using said converted imaging matrix.

Abstract translation: 一种用于打印的方法，包括：获得成像矩阵，其中每行或每列单元格与至少一个打印头的喷嘴相关联，并且其中每个单元格包含与数量相关的参数的初始值 要沉积在打印介质上的油墨; 将所述成像矩阵划分为至少两个小区子集，使得所述矩阵的每个小区属于所述子集之一; 将每个细胞子集与转换函数相关联; 通过对每个单元中的初始值应用与该单元所属的子集相对应的函数来获得转换的成像矩阵; 以及使用所述转换的成像矩阵进行打印。