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.

公开(公告)号：US20180244070A1

公开(公告)日：2018-08-30

申请号：US15760967

申请日：2015-11-05

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

Inventor： Li QIAN ,  Andreas MÜLLER ,  Carles RUIZ FLORIACH ,  Guillem ROIG

IPC: B41J2/195 ,  B41J2/175 ,  B41J2/045

Abstract: Examples herein provide a method. The method includes preconditioning a printing apparatus, including: increasing a temperature of an inkjet printhead in a print zone in the printing apparatus to a first temperature higher than or equal to about a steady state printhead temperature; and increasing a temperature of the print zone such that a portion of a print medium disposed over a portion of a platen in the print zone is at a second temperature higher than or equal to about a steady state print zone temperature. The method further includes disposing, using the printhead, an ink at the steady state printhead temperature onto the portion of the print medium to form an image thereon.