公开(公告)号：US11872756B2

公开(公告)日：2024-01-16

申请号：US17726478

申请日：2022-04-21

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

Inventor： Scott White ,  Jordi Sanroma Garrit

IPC: B29C64/259 ,  B33Y40/00 ,  B29C64/153 ,  B29C64/165 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/307 ,  B29C64/393 ,  B33Y40/20 ,  B33Y40/10

CPC classification number: B29C64/259 ,  B29C64/153 ,  B29C64/165 ,  B29C64/307 ,  B29C64/393 ,  B33Y30/00 ,  B33Y40/10 ,  B33Y40/20 ,  B33Y50/02

Abstract: Certain examples described herein relate to a removable unit for a three dimensional printing system. The removable unit comprises at least one compartment to store build material for a three-dimensional print job, a coupling to engage with a printer device of the three-dimensional printing system, and a memory. The memory is configured to store instructions for the three-dimensional print job for the printer device, and the instructions are readable from the memory by the printer device when the removable unit is engaged with the printer device.

公开(公告)号：US11872753B2

公开(公告)日：2024-01-16

申请号：US17049498

申请日：2018-10-12

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

Inventor： David A. Champion ,  Adriaan Spierings ,  Thomas Bauer

IPC: B29C67/00 ,  B29C64/214 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/393 ,  B22F10/85 ,  B22F12/67 ,  B28B1/00 ,  B28B17/00 ,  B22F12/60 ,  B22F12/63 ,  B22F12/90 ,  B22F10/37 ,  B22F10/14 ,  B22F10/28

CPC classification number: B29C64/214 ,  B22F10/37 ,  B22F10/85 ,  B22F12/60 ,  B22F12/63 ,  B22F12/67 ,  B22F12/90 ,  B28B1/001 ,  B28B17/0081 ,  B29C64/393 ,  B33Y30/00 ,  B33Y50/02 ,  B22F10/14 ,  B22F10/28 ,  B22F2999/00 ,  B22F10/37 ,  B22F12/63 ,  B22F12/67 ,  B22F12/90 ,  B22F2999/00 ,  B22F10/14 ,  B22F12/60 ,  B22F2202/01 ,  B22F2203/03 ,  B22F2999/00 ,  B22F10/28 ,  B22F12/60 ,  B22F2202/01 ,  B22F2203/03

Abstract: In some examples, a controller receives measurement data responsive to operation of a vibrated spreader for use in dispensing a build material onto a target surface, and controls a frequency of a vibration of the spreader based on the measurement data.

公开(公告)号：US20240012348A1

公开(公告)日：2024-01-11

申请号：US17913408

申请日：2020-04-07

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

Inventor： Boris Kaziev ,  Daniel Skvirsky ,  Albert Teishev

IPC: G03G15/16 ,  G03G9/12

CPC classification number: G03G15/162 ,  G03G9/12

Abstract: Described herein is a process for preparing a flexible packaging material comprising contacting a first flexible material of a layered substrate with an intermediate transfer member; wherein the layered substrate comprises the first flexible material and a thermally activatable laminating material disposed on the first flexible material; transferring an electrophotographic ink composition from a photoimaging plate onto the thermally activatable laminating material of the layered substrate on the intermediate transfer member to form an image layer on the thermally activatable laminating material; and contacting, under conditions of heat and/or pressure, the image layer with a second flexible material thereby forming the flexible packaging material. Also described herein is an electrophotographic printer for use in the process for preparing a flexible packaging material.

公开(公告)号：US20240009994A1

公开(公告)日：2024-01-11

申请号：US18139106

申请日：2023-04-25

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

Inventor： Scott A. Linn ,  James Michael Gardner ,  John Rossi

IPC: B41J2/045

CPC classification number: B41J2/0458 ,  B41J2/04585 ,  B41J2002/14475

Abstract: A print component includes an array of fluidic actuation structures including a first column of fluidic actuating structures addressable by a set of actuation addresses, each fluidic actuating structure having a different one of the actuation addresses and having a fluidic architecture type, and a second column of fluidic actuating structures addressable by the set of actuation addresses. Each fluidic actuating structure of the second column has a different one of the actuation addresses and has a same fluidic architecture type as the fluidic actuating structure of the first column having the same address. An address bus communicates the set of addresses to the array of fluidic actuating structures, and a fire signal line communicates a plurality of fire pulse signal types to the array of fluidic actuating structures, the fire pulse signal type depending on the actuation address on the address bus.

公开(公告)号：US11868075B2

公开(公告)日：2024-01-09

申请号：US17782308

申请日：2020-10-21

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

Inventor： Takeshi Uchitani ,  Katsushi Higashida ,  Takayuki Wakai

IPC: G03G21/00 ,  G03G5/147

CPC classification number: G03G21/0094 ,  G03G5/14704 ,  G03G5/14791

Abstract: An imaging system includes a lubricant roller to transfer a lubricant to the image carrier, a solid lubricant in contact the lubricant roller to supply the lubricant to the lubricant roller, and a pressing member to urge the solid lubricant against the lubricant roller. The lubricant roller includes a foam that is in contact with the image carrier. The foam is selected to have a permeability of approximately 0.15 dm3/s to 1.4 dm3/s.

公开(公告)号：US11865845B2

公开(公告)日：2024-01-09

申请号：US17954638

申请日：2022-09-28

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

Inventor： Andrew P. Chick ,  Kenneth K. Smith ,  Matthew James Storey ,  Pratik Shah ,  Luke Kim ,  Sean Daniel Fitzgerald ,  Mathew Lavigne ,  Jeffrey H. Luke ,  Jiwon Moon ,  Minchul Lee ,  Corbett Benjamin Schoenfelt ,  Bennett Alexander Nadeau ,  Zackary Thomas Hickman ,  Jefferson Blake West ,  Muriel Hale Shields ,  An Tran

IPC: B41J2/175

CPC classification number: B41J2/17513 ,  B41J2/17523 ,  B41J2/17596

Abstract: An example print material replenishment device includes a container to contain print material, a dispensing end to engage a fill port of a printing device, the dispensing end including an opening that is offset from a center axis of the container, and a rotatable cover coupled to the dispensing end, the rotatable cover to expose the opening of the dispensing end based on a rotation of the print material replenishment device.

公开(公告)号：US11865834B2

公开(公告)日：2024-01-09

申请号：US17411408

申请日：2021-08-25

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

Inventor： Maria Vila Abad ,  Xavier Quintero Ruiz ,  David Vendrell Tornero ,  Carles Carmona Calpe

IPC: B41J2/045 ,  G06F3/12

CPC classification number: B41J2/04505 ,  B41J2/04536 ,  B41J2/04586 ,  G06F3/1211 ,  G06F3/1229 ,  G06F3/1256

Abstract: Examples relate to computer-implemented methods for a printing system comprising a printhead, and to printing systems. A method for a printing system comprises retrieving a stored first offset applied to the printhead to align the printhead, the first offset determined based on a first user input signal; and further aligning the printhead according to a further offset determined based on a further user input signal, the further offset indicating a difference from the first offset.

公开(公告)号：US11865540B2

公开(公告)日：2024-01-09

申请号：US16317429

申请日：2016-09-23

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

Inventor： Pavel Kornilovich ,  Alexander N. Govyadinov

IPC: G01N33/68 ,  G01N21/33 ,  G01N21/64 ,  G01N33/52 ,  C07C309/05 ,  C07C309/73 ,  A01N1/02 ,  G01N1/40 ,  B01L3/00

CPC classification number: B01L3/50273 ,  B01L3/502738 ,  B01L3/502746 ,  B01L2200/0605 ,  B01L2200/0621 ,  B01L2300/0861 ,  B01L2300/0867 ,  B01L2400/0433 ,  B01L2400/0442

Abstract: A microfluidic device may include at least four interconnected microfluidic channels and a set of fluid actuators. The set of fluid actuators may include a fluid actuator asymmetrically located within at least two of the at least four interconnected microfluidic channels. Each of the at least four interconnected microfluidic channels may be activated to a fluid inputting state, a fluid outputting state and a fluid blocking state in response to selective actuation of different combinations of fluid actuators of the set.

公开(公告)号：US20240005505A1

公开(公告)日：2024-01-04

申请号：US18250526

申请日：2020-10-29

Applicant: Hewlett-Packard Development Company, L.P. ,  Purdue Research Foundation

Inventor： Yang Cheng ,  Qian Lin ,  Jan Allebach

IPC: G06T7/00

CPC classification number: G06T7/0016 ,  G06T2207/10024 ,  G06T2207/20084 ,  G06T2207/30076 ,  G06T2207/30201

Abstract: In some examples, an electronic device comprises an interface to receive a video of a human face, a memory storing executable code, and a processor coupled to the interface and to the memory. As a result of executing the executable code, the processor is to receive the video from the interface, use a facial detection technique to produce a sequence of images of the human face based on the video, use a neural network to predict a photoplethysmographic (PPG) signal based on the sequence of images, convert the PPG signal to a frequency domain signal, and determine a heart rate by performing a frequency analysis on the frequency domain signal.

公开(公告)号：US20240001693A1

公开(公告)日：2024-01-04

申请号：US18253831

申请日：2020-12-23

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

Inventor： Ricard EJARQUE MONTALVO ,  Victor LORENTE TEJERO ,  David MUNOZ NAVARRO ,  Albert ESTELLA AGUERRI

IPC: B41J11/00

CPC classification number: B41J11/0095 ,  B41J11/008 ,  B41J2203/011

Abstract: A printing apparatus is disclosed herein. The apparatus comprises a platform defining a printing zone to hold a media moveable along a media path direction; a first sensor at a first location along the media path direction to measure a media advance at the first location; a second sensor located at a second location along the media path direction downstream the first location, the second sensor to measure the media advance at the second location; and a controller. The controller to determine a deformation gradient of the media based on a first set of measurements of the media advance by the sensors at the first and second locations and adjust an image to be printed based on the deformation gradient.