公开(公告)号：US20200215831A1

公开(公告)日：2020-07-09

申请号：US16492991

申请日：2017-09-27

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

Inventor： Aleix Fort Filgueira ,  Antonio Gracia Verdugo ,  Caries Flotats Villagrasa

IPC: B41J15/04 ,  B41J11/00

Abstract: It is disclosed a substrate selection method wherein the printer comprises a feeding mechanism including a feeding roller to receive a substrate roll and a media advance roller to receive a substrate from the substrate roll, the method comprising: actuating the feeding roller or the media advance roller; measuring a feeding mechanism parameter on the feeding roller or the media advance roller; calculating a substrate parameter in view of the feeding mechanism parameter; determining from a table a substrate type of in view of the substrate parameter; and selecting a preset on the printer in view of the substrate type

公开(公告)号：US20190224966A1

公开(公告)日：2019-07-25

申请号：US16334249

申请日：2016-10-25

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

Inventor： Antonio Gracia Verdugo ,  Joan Uroz Soria ,  Aleix Fort Filgueira

IPC: B41J2/045 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/112 ,  B29C64/20 ,  B29C64/393 ,  B33Y10/00

Abstract: A printer includes a print head to print a pixel by ejecting drops of a printing fluid from the print head, and a controller. The controller monitors a drop volume of the printing fluid ejected by the print head. When the drop volume is below a threshold, the controller controls the print head in accordance with a first print mode to increase the frequency of ejecting drops of the printing fluid within the pixel print time with a decrease in the drop volume that maintains a print quality parameter. The controller changes to a second print mode to increase the pixel print time that maintains the print quality parameter.

公开(公告)号：US11267250B2

公开(公告)日：2022-03-08

申请号：US16074322

申请日：2016-05-26

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

Inventor： Joan Albert Miravet Jimenez ,  Albert Crespi Serrano ,  Aleix Fort Filgueira

IPC: B41J2/175

Abstract: In an example, a pressure system includes a fluid movement device, a buffer reservoir coupled to the fluid movement device, and a first fluid interface coupled to the buffer reservoir. In that example, the first fluid interface is able to couple to a pressurizable chamber of a print fluid container (that can apply force on a print fluid bag of the print fluid container).

公开(公告)号：US20210331492A1

公开(公告)日：2021-10-28

申请号：US16603567

申请日：2018-06-25

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

Inventor： Josep Maria Cuner Utges ,  Aleix Fort Filgueira ,  Alejandro Mielgo Barba

IPC: B41J11/00 ,  B41J29/377 ,  B41M1/30 ,  B41M5/00

Abstract: The present disclosure relates to vinyl substrate printing. In an example, a vinyl printing apparatus is disclosed wherein the apparatus comprises a media path to convey a vinyl substrate along a feed direction from a substrate supply to a print zone; an inkjet printhead to print on the print substrate at the print zone; and a heater upstream of the print zone to heat the print substrate to evaporate a plasticizer from a surface of the print substrate.

公开(公告)号：US20210323308A1

公开(公告)日：2021-10-21

申请号：US16499894

申请日：2018-04-25

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

Inventor： Aleix Fort Filgueira ,  Mauricio Seras Franzoso ,  Sheila Cabello Cabrera

IPC: B41J2/165

Abstract: Example apparatus is disclosed, including apparatus for print head maintenance, the apparatus comprising a print mead maintenance device to perform a print head maintenance operation on a print head during a printing process, and a controller to cause the print head maintenance device to perform the print head maintenance operation with a parameter based on an amount of print agent applied by the print head.

公开(公告)号：US20210103232A1

公开(公告)日：2021-04-08

申请号：US17050468

申请日：2018-06-15

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

Inventor： Aleix Fort Filgueira ,  Alejandro Mielgo ,  Michel Georges Encrenaz

IPC: G03G15/08 ,  G03G15/00 ,  G03G21/16

Abstract: There is provided a method and apparatus for monitoring conditioning of a rendering material in a storage structure, where the storage structure comprises a passive transceiver. The passive transceiver may generate a varying response signal where a strength of the varying signal can be monitored and used to determine a pre-conditioning parameter indicative of a condition of the storage structure.

公开(公告)号：US20210070078A1

公开(公告)日：2021-03-11

申请号：US16958849

申请日：2018-01-08

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

Inventor： Antonio Gracia Verdugo ,  Aleix Fort Filgueira ,  Andreu Vinets Alonso

IPC: B41J29/393 ,  B41J2/21 ,  B41J2/045

Abstract: Examples of the present disclosure relate to a calibration method for a printing system. The method comprises printing a diagnostic pattern representative of decap time. The diagnostic pattern comprises the firing of nozzles after an exposure to ambient air during a first predetermined time period to produce a first pattern element and the firing of nozzles after an exposure to ambient air during a second predetermined time period to produce a second pattern element. The method includes scanning the resulting diagnostic pattern with a sensor to collect decap data in a digital form, digitally analyzing the decap data, the digital analysis comprising identifying a quantitative difference between the first and second pattern elements, and modifying a servicing process of the printing system if the quantitative difference passes a predetermined threshold.

公开(公告)号：US10940708B2

公开(公告)日：2021-03-09

申请号：US16492991

申请日：2017-09-27

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

Inventor： Aleix Fort Filgueira ,  Antonio Gracia Verdugo ,  Carles Flotats Villagrasa

IPC: B41J11/00 ,  B41J15/04 ,  B41J13/10 ,  B65H23/185 ,  B65H23/192 ,  B41J29/393

Abstract: It is disclosed a substrate selection method wherein the printer comprises a feeding mechanism including a feeding roller to receive a substrate roll and a media advance roller to receive a substrate from the substrate roll, the method comprising: actuating the feeding roller or the media advance roller; measuring a feeding mechanism parameter on the feeding roller or the media advance roller; calculating a substrate parameter in view of the feeding mechanism parameter; determining from a table a substrate type of in view of the substrate parameter; and selecting a preset on the printer in view of the substrate type.

公开(公告)号：US11407221B2

公开(公告)日：2022-08-09

申请号：US16334249

申请日：2016-10-25

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

Inventor： Antonio Gracia Verdugo ,  Joan Uroz Soria ,  Aleix Fort Filgueira

IPC: B29C64/112 ,  B29C64/20 ,  B41J2/045 ,  B41J2/21 ,  B41J2/175 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/393 ,  B41J2/04

Abstract: A printer includes a print head to print a pixel by ejecting drops of a printing fluid from the print head, and a controller. The controller monitors a drop volume of the printing fluid ejected by the print head. When the drop volume is below a threshold, the controller controls the print head in accordance with a first print mode to increase the frequency of ejecting drops of the printing fluid within the pixel print time with a decrease in the drop volume that maintains a print quality parameter. The controller changes to a second print mode to increase the pixel print time that maintains the print quality parameter.

公开(公告)号：US11052691B2

公开(公告)日：2021-07-06

申请号：US16958849

申请日：2018-01-08

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

Inventor： Antonio Gracia Verdugo ,  Aleix Fort Filgueira ,  Andreu Vinets Alonso

IPC: B41J2/045 ,  B41J29/393 ,  B41J2/21

Abstract: Examples of the present disclosure relate to a calibration method for a printing system. The method comprises printing a diagnostic pattern representative of decap time. The diagnostic pattern comprises the firing of nozzles after an exposure to ambient air during a first predetermined time period to produce a first pattern element and the firing of nozzles after an exposure to ambient air during a second predetermined time period to produce a second pattern element. The method includes scanning the resulting diagnostic pattern with a sensor to collect decap data in a digital form, digitally analyzing the decap data, the digital analysis comprising identifying a quantitative difference between the first and second pattern elements, and modifying a servicing process of the printing system if the quantitative difference passes a predetermined threshold.