公开(公告)号：US20210129559A1

公开(公告)日：2021-05-06

申请号：US17049714

申请日：2018-06-15

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

Inventor： Andreas MULLER ,  Manuel AGUDO ACEMEL ,  Pau COSTAL FORNELLS ,  Albert FRANCO MORERA

IPC: B41J19/20 ,  B41J11/00

Abstract: The disclosure relates to a rendering apparatus, method and non-transitory machine-readable storage medium for determining a speed of a carriage during rendering of an image. A plurality of swaths of rendering fluid are deposited on a print target using a set of printheads moving across the print target. A temperature of a curing module is measured at a respective time of depositing each respective swath. An arrival time for each deposited swath to respectively arrive at the curing module is predicted. The speed of the carriage during depositing the plurality of swaths is determined based on the measured temperature of the curing module and predicted arrival time for each respective swath.

公开(公告)号：US20220375132A1

公开(公告)日：2022-11-24

申请号：US17772056

申请日：2019-12-03

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

Inventor： Lluis ABELLO ROSELLO ,  Pau COSTAL FORNELLS ,  Carlos FAJARDO SANCHEZ

IPC: G06T9/00 ,  G06T3/40

Abstract: Examples relate to image processing, and performing fixed length format cell compression on a cell of a planar colour image based on an amount of white colour of the cell, the cell comprising a plurality of pixels, to obtain a compressed cell having four or fewer colour levels; and performing variable length format cell compression on the compressed cell to obtain a coded compressed cell.

公开(公告)号：US20230322007A1

公开(公告)日：2023-10-12

申请号：US18042803

申请日：2020-08-27

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

Inventor： Pau COSTAL FORNELLS ,  Andreas MÜLLER ,  Alexandre RODRIGUEZ LLOFRIU

IPC: B41M5/00

CPC classification number: B41M5/0017

Abstract: A printing system may be provided and the printing system may comprise, in an example, a controller, wherein the controller may cause a printing mechanism to selectively apply pre-treatment fluid and marking fluid on a recorded medium. The printing mechanism may comprise a first printhead to dispense pre-treatment fluid and a second printhead to dispense marking fluid, wherein the first printhead is arranged in line with the second printhead. The controller may cause the printing system to enter a first print mode, wherein in the first print mode, there are a plurality of passes of a printing mechanism where pre-treatment fluid and/or marking fluid is applied to the recorded medium, and wherein a first of the plurality of passes is to be of the pre-treatment fluid from the first printhead without the second printhead dispensing marking fluid.