公开(公告)号：US11813856B2

公开(公告)日：2023-11-14

申请号：US18068165

申请日：2022-12-19

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

Inventor： Ignasi Bonjoch Roma ,  Josep Maria Bel Calavia ,  Andreu Vinets Alonso

IPC: B41J15/16 ,  B41J11/46 ,  B65H23/198 ,  B65H23/18 ,  B65H23/185

CPC classification number: B41J15/16 ,  B41J11/46 ,  B65H23/185 ,  B65H23/198 ,  B65H23/1806 ,  B65H2511/22 ,  B65H2511/23 ,  B65H2511/512 ,  B65H2513/11 ,  B65H2515/31 ,  B65H2515/84 ,  B65H2553/40 ,  B65H2801/15

Abstract: An example method comprises operating a drive unit to advance a substrate in a substrate advance direction toward a printing station. At the printing station, a first line is printed onto the substrate. A drive unit is instructed to advance the substrate in the substrate advance direction by a target amount, and a second line is printed onto the substrate. The distance between the first and second lines in a direction perpendicular to the substrate advance direction is calculated and, based on the calculated difference, a tension of the substrate is modified.

公开(公告)号：US11504970B2

公开(公告)日：2022-11-22

申请号：US17264024

申请日：2019-03-13

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

Inventor： Ignasi Bonjoch Roma ,  Oscar Moya Rojo ,  Josep Maria Bel Calavia

IPC: B41J2/17 ,  B41J29/17 ,  B41J11/00

Abstract: A printing fluid collector is described. In one example, the collector comprises a conveying mechanism for collecting printing fluid ejected from a printing fluid dispenser, and a connecting means for connecting the conveying mechanism to a printing system in an orientation such that the conveying mechanism is to collect printing fluid ejected from the printing fluid dispenser and convey the printing fluid in a direction which is substantially perpendicular to a direction of movement of a print medium along a print medium path.

公开(公告)号：US20220072883A1

公开(公告)日：2022-03-10

申请号：US17417256

申请日：2019-04-11

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

Inventor： Josep Maria Bel Calavia ,  Antonio Gracia Verdugo ,  Andrei Alexandru Dafinoiu

IPC: B41J29/393 ,  B41J11/00 ,  B41J29/26 ,  G06F3/12

Abstract: There is disclosed a device, method and program, wherein the method comprises detecting a power increase, during which power usage increases by at least a threshold amount over an expected power usage during movement of a printer carriage over a print medium along a scan axis. The increase method further comprises detecting a location of the printer carriage at a time of the detected power usage increase and determining, based on the detected location of the printer carriage, whether the print medium is damaged.