公开(公告)号：US20210053361A1

公开(公告)日：2021-02-25

申请号：US16978488

申请日：2018-03-29

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

Inventor： Juan SAEZ GOMEZ ,  Michel GEORGES ENCRENAZ ,  Fernando CHICA AGUILERA

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

Abstract: A first input color channel value for a first colorant and a second input color channel value for a second colorant are received. A first number of drops of a first colorant is obtained based on the first input color channel value and a first drop sequence. A second number of drops of a second colorant is obtained based on the second input color channel value and a second drop sequence. The first drop sequence defines a first mapping between input color channel values and number of drops and the second drop sequence defines a second, different, mapping between input color channel values and number of drops.

公开(公告)号：US20240095480A1

公开(公告)日：2024-03-21

申请号：US17768816

申请日：2020-01-30

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

Inventor： Pooshpanjan ROY BISWAS ,  Juan SAEZ GOMEZ ,  Alessandro BELTRAMI

IPC: G06K15/02 ,  H04N1/60

CPC classification number: G06K15/027 ,  H04N1/605 ,  G06K2215/101

Abstract: In an example, a method includes receiving, at a printing apparatus, a print target. The method may also include printing a drop linearization chart on a sample of the print target and measuring the drop linearization chart to determine a measured drop linearization curve for the print target. The method may include comparing the measured drop linearization curve to a plurality of predefined drop linearization curves to determine a most similar drop linearization curve from the plurality of predefined drop linearization curves, and applying a linearization defined by the most similar drop linearization curve to print data to be printed on the print target.

公开(公告)号：US20240098210A1

公开(公告)日：2024-03-21

申请号：US18262064

申请日：2021-01-19

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

Inventor： Pooshpanjan ROY BISWAS ,  Juan SAEZ GOMEZ

IPC: H04N1/60 ,  B41J2/21

CPC classification number: H04N1/6033 ,  B41J2/2114 ,  H04N1/6008

Abstract: Examples relate to a method to generate a user print mode. The method comprises selecting a predetermined print mode, setting a user level of treatment fluid different to a predetermined level of treatment fluid of the predetermined print mode, obtaining a plurality of color profiles for a plurality of levels of treatment fluid, generating a user color profile based on the obtained plurality of color profiles and replacing the color profile of the selected predetermined print mode by the generated user color profile to generate the user print mode for the set user level of treatment fluid.