公开(公告)号：US09776438B2

公开(公告)日：2017-10-03

申请号：US15030409

申请日：2013-11-21

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

Inventor： Carles Ruiz Floriach ,  Carlos Felip Aragon ,  Raimon Castells de Monet ,  Xavier Domingo Reguant

IPC: B41J15/16 ,  B41F33/06 ,  H02P27/12 ,  B65H23/18

CPC classification number: B41J15/16 ,  B41F33/06 ,  B65H23/18 ,  B65H2515/32 ,  B65H2555/24 ,  B65H2557/61 ,  B65H2557/63 ,  B65H2801/03 ,  B65H2801/15 ,  H02P27/12 ,  B65H2220/02 ,  B65H2220/01

Abstract: A printer is disclosed. The printer has a media control system to control the tension in media loaded in a paper path in the printer. A motor in the media control system is characterized to determine a plurality of motor characteristics. The media control system uses the motor characteristics to adjust the control signal to the motor.

公开(公告)号：US10688804B2

公开(公告)日：2020-06-23

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 ,  B41J11/00 ,  B41J29/38

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.