公开(公告)号：US20190030821A1

公开(公告)日：2019-01-31

申请号：US16064584

申请日：2016-04-04

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

Inventor： Luis Garcia ,  Pol Fornos ,  David Ramirez Muela

IPC: B29C64/393 ,  B29C64/165 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: There is disclosed additive manufacturing apparatus comprising: a controller (110) to: receive object data relating to an object to be generated; and define print data for additive manufacture of the object by ejection of a print agent on build material in a pattern corresponding to selective fusing of the build material, wherein the print data is defined based on the object data so that the pattern defines a shield feature (56) embedded within the object to inhibit fusing of build material corresponding to the shield feature relative build material corresponding to an adjacent portion of the object; and a print agent distributor (104) to eject a print agent on build material based on the print data.

公开(公告)号：US20190009463A1

公开(公告)日：2019-01-10

申请号：US16065464

申请日：2016-03-30

Applicant: Xavier VILAJOSANA ,  Sergio PUIGARDEU ,  Alejandro Manuel PENA ,  David RAMIREZ ,  Pol FORNOS ,  HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Xavier Vilajosana ,  Sergio Puigardeu ,  Alejandro Manuel De Pena ,  David Ramirez ,  Pol Fornos

IPC: B29C64/153 ,  B29C64/165 ,  B29C64/386

Abstract: There is provided a method and apparatus for controlling heat to a build surface. A thermal profile over the build surface is determined. The determined thermal profile over the build surface is compared with an expected thermal profile over the build surface. Based on the comparison, the determined thermal profile over the build surface or the expected thermal profile over the build surface is selected to control an amount of heat provided by a heating module to the build surface.

公开(公告)号：US20170344314A1

公开(公告)日：2017-11-30

申请号：US15533514

申请日：2015-01-13

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

Inventor： Xavier Vilajosana ,  Pere Tuset ,  Pol Fornos

IPC: G06F3/12 ,  B41J29/38 ,  B41J29/46 ,  G06F17/15

CPC classification number: G06F3/121 ,  B41J19/00 ,  B41J29/38 ,  B41J29/393 ,  B41J29/46 ,  G06F17/15

Abstract: In an example, a method of anticipating maintenance in a printing device includes determining an inertial reference signal of a printer carriage and measuring a current inertial signal of the printer carriage. The method includes cross-correlating the inertial reference signal with the current inertial signal and determining from the cross-correlating when the current inertial signal is not within a preset confidence interval of the inertial reference signal.