公开(公告)号：US11135834B1

公开(公告)日：2021-10-05

申请号：US16603583

申请日：2017-11-13

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

Inventor： Xavier Quintero Ruiz ,  Raul Rodriguez Alonso ,  Montserrat Solano Pallarol

IPC: B41J2/045

Abstract: Certain examples describe a method of calibrating a printer and a printing system. An interferential pattern is printed in the form of a print calibration image on a print medium. Data representative of the interferential pattern as printed on the print medium is detected using an optical sensor. The printer is calibrated based on the captured data. The interferential pattern is based on a waveform that varies in amplitude along an axis perpendicular to a printing axis under calibration and has repeated sets of multiple patterns based on the waveform, the repeated sets having a varying pattern spacing in the printing axis under calibration.

公开(公告)号：US11034168B2

公开(公告)日：2021-06-15

申请号：US16475609

申请日：2017-04-21

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

Inventor： Leticia Rubio ,  Utpal Sarkar ,  Raul Rodriguez Alonso ,  Xavier Quintero Ruiz

IPC: B41J11/00

Abstract: A method of printing on a printable medium is disclosed. The method of printing may use a print head having a plurality of nozzles. The printable medium may have a leading edge and a defined zone adjacent to the leading edge. The print head may deposit print agent onto the printable medium via the plurality of nozzles during successive printing passes. The method may comprise printing outside, and not within, the defined zone on the printable medium using a first subset of nozzles of the plurality of nozzles. The method may further comprise printing within, and not outside, the defined zone on the printable medium using a second subset of nozzles of the plurality of nozzles.

公开(公告)号：US20190322109A1

公开(公告)日：2019-10-24

申请号：US16475609

申请日：2017-04-21

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

Inventor： Leticia Rubio ,  Utpal Sarkar ,  Raul Rodriguez Alonso ,  Xavier Quintero Ruiz

IPC: B41J11/00

Abstract: A method of printing on a printable medium is disclosed. The method of printing may use a print head having a plurality of nozzles. The printable medium may have a leading edge and a defined zone adjacent to the leading edge. The print head may deposit print agent onto the printable medium via the plurality of nozzles during successive printing passes. The method may comprise printing outside, and not within, the defined zone on the printable medium using a first subset of nozzles of the plurality of nozzles. The method may further comprise printing within, and not outside, the defined zone on the printable medium using a second subset of nozzles of the plurality of nozzles.

公开(公告)号：US10744714B2

公开(公告)日：2020-08-18

申请号：US15542379

申请日：2015-04-30

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. ,  Miguel Angel Lopez ,  Raul Rodriguez Alonso ,  Xavier Quintero Ruiz

Inventor： Miguel Angel Lopez ,  Raul Rodriguez Alonso ,  Xavier Quintero Ruiz

IPC: B29C64/165 ,  B29C64/386 ,  B29C64/112 ,  B33Y50/02 ,  B29C64/393

Abstract: Misalignments of a 3d printing device may be detected by providing a reference pattern in a print zone of the 3d printing device, wherein the reference pattern comprises a plurality of reference marks, printing a test pattern on the reference pattern by means of the 3d printing device, and comparing the test pattern with the reference marks.

公开(公告)号：US20190184720A1

公开(公告)日：2019-06-20

申请号：US16329494

申请日：2016-10-24

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

Inventor： Leticia Rubio ,  Raul Rodriguez Alonso ,  Marti Rius Rossell ,  Utpal Kumar Sarker ,  Xavier Quintero Ruiz

IPC: B41J25/00 ,  B41J2/165

CPC classification number: B41J25/006 ,  B41J2/16517 ,  B41J2/17 ,  B41J2/175 ,  B41J2/2132

Abstract: A method of printing is disclosed. The printing may involve printing on a printable medium using a print head having a plurality of nozzles, the printable medium having a leading edge and a defined zone adjacent to the leading edge. The print head may be to deposit print agent onto the printable medium via the plurality of nozzles during successive printing passes. The method may comprise: during a first printing pass, depositing print agent from a subset of the plurality of nozzles onto the printable medium outside the defined zone. The method may further comprise: advancing the printable medium by a defined distance. The method may further comprise: during a second printing pass, depositing print agent from a subset of the plurality of nozzles onto the printable medium within the defined zone

公开(公告)号：US20180036949A1

公开(公告)日：2018-02-08

申请号：US15542379

申请日：2015-04-30

Applicant: Miguel Angel LOPEZ ,  Raul RODRIGUEZ AL ,  Xavier QUINTERO RUIZ ,  HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Miguel Angel Lopez ,  Raul Rodriguez Alonso ,  Xavier Quintero Ruiz

IPC: B29C64/393 ,  B22F3/00 ,  B28B1/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/165

Abstract: Misalignments of a 3d printing device may be detected by providing a reference pattern in a print zone of the 3d printing device, wherein the reference pattern comprises a plurality of reference marks, printing a test pattern on the reference pattern by means of the 3d printing device, and comparing the test pattern with the reference marks.