公开(公告)号：US20220118706A1

公开(公告)日：2022-04-21

申请号：US17433211

申请日：2019-04-29

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

Inventor： Cristian FERRIS ROIG ,  Tania TORM OBRADORS ,  Jordi BLANCH COSTA

IPC: B29C64/295 ,  B29C64/245 ,  B29C64/153 ,  B29C64/25 ,  B29C64/165 ,  B33Y10/00 ,  B33Y30/00 ,  H05B3/26

Abstract: A build unit for a three-dimensional printer, comprising a housing comprising sidewalls and a build platform movable within the housing. The housing and the build platform form a build chamber. The build unit further comprises a lateral heater mounted on the housing. The lateral heater is operable to apply a uniform housing temperature across all the section of the build unit by delivering variable power density along the housing.

公开(公告)号：US20220363076A1

公开(公告)日：2022-11-17

申请号：US17767023

申请日：2019-11-11

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

Inventor： Raimon CASTELLS DE MONET ,  Josep TARRADAS I JUAN ,  Jordi BLANCH COSTA

IPC: B41J11/00 ,  G01J3/50 ,  G01J3/52

Abstract: Examples of the present disclosure relate to a method for providing a status of a radiation emitter of a printing device, the method comprising image sensing at least part of a print agent after deposition onto a print substrate and after heating by the radiation emitter: obtaining, based on the image sensing, an irradiance applied on the heated print agent and providing a status of the radiation emitter in response to determining a deviation of the irradiance with respect to an expected irradiance.

公开(公告)号：US20220088867A1

公开(公告)日：2022-03-24

申请号：US17298011

申请日：2019-04-29

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

Inventor： Jordi BLANCH COSTA ,  Daniel GONZALEZ PERELLO ,  Sergi CULUBRET CORTADA ,  Fernando JUAN JOVER ,  Steven J. WHITE ,  Donald HIGGINS

IPC: B29C64/218 ,  B29C64/295 ,  B33Y30/00

Abstract: An additive manufacturing machine (34) comprising a build material spreading system (2). The spreading system (2) has a moveable spreader (4) with an exterior surface (8) to spread build material. The spreading system (2) also has a heater (10) located separate from the spreader (4). The heater (10) has a heat dissipater (20) extending around the spreader (4) to retain, between the dissipater (20) and the spreader (4), air (36) heated by the dissipater (20).