公开(公告)号：US10525753B2

公开(公告)日：2020-01-07

申请号：US16219170

申请日：2018-12-13

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

Inventor： Gary Tarver ,  Jayanta C. Panditaratne ,  Jason Cassidy Hower ,  Hua Tan ,  James Kearns

IPC: B41M5/00 ,  B41J11/00 ,  B41J29/377

Abstract: A drying apparatus usable with a printing system includes a housing, a first set of radiative heating elements, a second set of radiative heating elements, and an air handling device. The housing includes a front region and a rear region adjacent to the front region. The front region includes an inlet to receive media. The rear region includes an outlet to pass media there through. The first set of radiative heating elements is disposed within the front region to heat the media. The second set of radiative heating elements is disposed within the rear region to heat the media. The air handling device is disposed across from the second set of radiative heating elements to jet air within the rear region to cool the media prior to the media being passed through the outlet.

公开(公告)号：US10471698B2

公开(公告)日：2019-11-12

申请号：US15127739

申请日：2014-04-30

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

Inventor： Keshava A. Prasad ,  David H. Donovan ,  Krzysztof Nauka ,  Ali Emamjomeh ,  Hua Tan

IPC: G06F17/50 ,  B33Y50/02 ,  B29C67/00 ,  B33Y10/00 ,  B29C64/165 ,  B29C64/386 ,  B29C64/40

Abstract: In a computational modeling method for identifying how to apply a modifying agent during a three-dimensional (3D) printing method, a thermal diffusion model of a layer of a 3D object to be formed from a portion of a sinterable material using the 3D printing method is created. The thermal diffusion model is created by a computer running computer readable instructions stored on a non-transitory, tangible computer readable storage medium. A quantity of the modifying agent to be selectively applied is calculated, by the computer, based upon the thermal diffusion model.

公开(公告)号：US10792944B2

公开(公告)日：2020-10-06

申请号：US16676752

申请日：2019-11-07

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

Inventor： Gary Tarver ,  Jayanta C. Panditaratne ,  Jason Cassidy Hower ,  Hua Tan ,  James Kearns

IPC: B41M5/00 ,  B41J11/00 ,  B41J29/377

Abstract: A drying apparatus usable with a printing system includes a housing, a first set of radiative heating elements, a second set of radiative heating elements, and an air handling device. The housing includes a front region and a rear region adjacent to the front region. The front region includes an inlet to receive media. The rear region includes an outlet to pass media there through. The first set of radiative heating elements is disposed within the front region to heat the media. The second set of radiative heating elements is disposed within the rear region to heat the media. The air handling device is disposed across from the second set of radiative heating elements to jet air within the rear region to cool the media prior to the media being passed through the outlet.

公开(公告)号：US10179468B2

公开(公告)日：2019-01-15

申请号：US15122594

申请日：2014-03-14

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

Inventor： Gary Tarver ,  Jayanta C Panditaratne ,  Jason Cassidy Hower ,  Hua Tan ,  James Kearns

IPC: B41M5/00 ,  B41J11/00 ,  B41J29/377

Abstract: A drying apparatus usable with a printing system includes a housing, a first set of radiative heating elements, a second set of radiative heating elements, and an air handling device. The housing includes a front region and a rear region adjacent to the front region. The front region includes an inlet to receive media. The rear region includes an outlet to pass media there through. The first set of radiative heating elements is disposed within the front region to heat the media. The second set of radiative heating elements is disposed within the rear region to heat the media. The air handling device is disposed across from the second set of radiative heating elements to jet air within the rear region to cool the media prior to the media being passed through the outlet.

公开(公告)号：US20170151722A1

公开(公告)日：2017-06-01

申请号：US15127739

申请日：2014-04-30

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

Inventor： Keshava A. Prasad ,  David H. Donovan ,  Krzysztof Nauka ,  Ali Emamjomeh ,  Hua Tan

IPC: B29C67/00 ,  B33Y50/02 ,  B33Y10/00

CPC classification number: B33Y50/02 ,  B29C64/165 ,  B29C64/386 ,  B29C64/40 ,  B29C67/00 ,  B33Y10/00 ,  G06F17/5009

Abstract: In a computational modeling method for identifying how to apply a modifying agent during a three-dimensional (3D) printing method, a thermal diffusion model of a layer of a 3D object to be formed from a portion of a sinterable material using the 3D printing method is created. The thermal diffusion model is created by a computer running computer readable instructions stored on a non-transitory, tangible computer readable storage medium. A quantity of the modifying agent to be selectively applied is calculated, by the computer, based upon the thermal diffusion model.

公开(公告)号：US20200070553A1

公开(公告)日：2020-03-05

申请号：US16676752

申请日：2019-11-07

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

Inventor： Gary Tarver ,  Jayanta C. Panditaratne ,  Jason Cassidy Hower ,  Hua Tan ,  James Kearns

IPC: B41M5/00 ,  B41J11/00 ,  B41J29/377

Abstract: A drying apparatus usable with a printing system includes a housing, a first set of radiative heating elements, a second set of radiative heating elements, and an air handling device. The housing includes a front region and a rear region adjacent to the front region. The front region includes an inlet to receive media. The rear region includes an outlet to pass media there through. The first set of radiative heating elements is disposed within the front region to heat the media. The second set of radiative heating elements is disposed within the rear region to heat the media. The air handling device is disposed across from the second set of radiative heating elements to jet air within the rear region to cool the media prior to the media being passed through the outlet.

公开(公告)号：US20190111716A1

公开(公告)日：2019-04-18

申请号：US16219170

申请日：2018-12-13

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

Inventor： Gary Tarver ,  Jayanta C. Panditaratne ,  Jason Cassidy Hower ,  Hua Tan ,  James Kearns

IPC: B41M5/00 ,  B41J29/377 ,  B41J11/00

Abstract: A drying apparatus usable with a printing system includes a housing, a first set of radiative heating elements, a second set of radiative heating elements, and an air handling device. The housing includes a front region and a rear region adjacent to the front region. The front region includes an inlet to receive media. The rear region includes an outlet to pass media there through. The first set of radiative heating elements is disposed within the front region to heat the media. The second set of radiative heating elements is disposed within the rear region to heat the media. The air handling device is disposed across from the second set of radiative heating elements to jet air within the rear region to cool the media prior to the media being passed through the outlet.

公开(公告)号：US20180154576A1

公开(公告)日：2018-06-07

申请号：US15558633

申请日：2015-08-21

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

Inventor： Chien-Hua Chen ,  Qin Liu ,  Hua Tan ,  Zhizhang Chen

IPC: B29C64/277 ,  B29C64/112 ,  B29C64/209 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B41J2/14 ,  B41J11/00

CPC classification number: B29C64/277 ,  B29C35/0805 ,  B29C64/112 ,  B29C64/20 ,  B29C64/209 ,  B29C64/393 ,  B29C2035/0822 ,  B29C2035/0827 ,  B29C2035/0833 ,  B29K2105/0094 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  B41J2/14016 ,  B41J2/14201 ,  B41J2/155 ,  B41J2/44 ,  B41J11/002

Abstract: Examples include a printhead comprising a plurality of nozzles for ejecting printing material drops. Examples include at least one emission device positioned proximate the printhead, where the at least one emission device is to emit energy to thereby expose ejected printing material drops to emitted energy to change at least one material property of ejected printing material drops in-flight.