公开(公告)号：WO2020162891A1

公开(公告)日：2020-08-13

申请号：PCT/US2019/016730

申请日：2019-02-06

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

Inventor： GARDNER, James Michael ,  ROSSI, John ,  LINN, Scott A.

IPC: B41J2/045 ,  B41J2/175

Abstract: An integrated circuit to drive a plurality of fluid actuation devices includes a plurality of contact pads, a plurality of pulldown devices, and control logic. The plurality of contact pads include a first contact pad and a second contact pad. Each of the pulldown devices is electrically coupled to a corresponding contact pad. The control logic enables at least a portion of the pulldown devices in response to both a logic low signal on the first contact pad and a logic low signal on the second contact pad.

公开(公告)号：WO2019078844A1

公开(公告)日：2019-04-25

申请号：PCT/US2017/057165

申请日：2017-10-18

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

Inventor： ROURKE, Kevin ,  ROSSI, John ,  KINAS, Erick Blane ,  MANNION, James ,  CHAN, Wai Kwan

IPC: G03G15/08

CPC classification number: G03G15/0856 ,  G03G15/0858 ,  G03G15/086 ,  G03G15/105

Abstract: A replaceable print component is disclosed that comprises first and second electrodes, and a circuit electrically connected between the first and second electrodes to vary an electrical property of the circuit with a frequency component within a selected frequency range to indicate a parameter of a part of the circuit in response to a stimulus.

公开(公告)号：EP3717249A1

公开(公告)日：2020-10-07

申请号：EP19706151.8

申请日：2019-02-06

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

Inventor： ROSSI, John ,  LINN, Scott A. ,  GARDNER, James M.

IPC: B41J2/045

公开(公告)号：EP4159444A1

公开(公告)日：2023-04-05

申请号：EP22208768.6

申请日：2019-02-06

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

Inventor： GARDNER, James Michael ,  ROSSI, John ,  LINN, Scott

IPC: B41J2/045 ,  B41J2/175 ,  B41J2/14

Abstract: An integrated circuit for a fluid ejection device comprising a plurality of fluid actuation devices includes a plurality of contact pads, a plurality of pulldown devices, and control logic. The plurality of contact pads include a first contact pad and a second contact pad. Each of the pulldown devices is electrically coupled to a corresponding contact pad. The control logic enables at least a portion of the pulldown devices in response to both a logic low signal on the first contact pad and a logic low signal on the second contact pad.

公开(公告)号：EP3710270A1

公开(公告)日：2020-09-23

申请号：EP19706347.2

申请日：2019-02-06

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

Inventor： GARDNER, James Michael ,  LINN, Scott A. ,  ROSSI, John ,  NESS, Erik D.

IPC: B41J2/045 ,  B41J2/175 ,  G11C13/00 ,  B41J2/21

公开(公告)号：EP3921168A1

公开(公告)日：2021-12-15

申请号：EP19914527.7

申请日：2019-02-06

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

Inventor： ROSSI, John ,  NESS, Erik D.

IPC: B41J2/135 ,  B41J2/175 ,  B41J2/045 ,  G06F3/12

公开(公告)号：EP3921166A1

公开(公告)日：2021-12-15

申请号：EP19914280.3

申请日：2019-02-06

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

Inventor： ROSSI, John ,  NESS, Erik D.

IPC: B41J2/01

公开(公告)号：EP3827989A1

公开(公告)日：2021-06-02

申请号：EP21151398.1

申请日：2019-02-06

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

Inventor： LINN, Scott A. ,  GARDNER, James Michael ,  ROSSI, John

IPC: B41J2/045 ,  B41J2/14

Abstract: A print component has 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. The print component has a second column of fluidic actuating structures addressable by the set of actuation addresses, each fluidic actuating structure of the second column having a different one of the actuation addresses and having a same fluidic architecture type as the fluidic actuating structure of the first column having the same address. The first and second columns of actuating structures each have a same number of column positions, each fluidic actuating structure of the first and second columns disposed at a different one of the column positions. Each fluidic actuating structure of the second column offset by a same number column positions from the fluidic actuating structure of the first column having the same actuation address.

公开(公告)号：EP4220480A1

公开(公告)日：2023-08-02

申请号：EP23167144.7

申请日：2019-02-06

Applicant: Hewlett-Packard Development Company L.P.

Inventor： ROSSI, John

IPC: G06K15/00 ,  G06K15/02

Abstract: A fluid ejection controller interface includes output logic to receive control data packets, each control data packet including a set of primitive data bits and a set of random bits. The fluid ejection controller interface includes counter logic to cause the output logic to output modified control data packets to a fluid ejection controller of a fluid ejection device.

公开(公告)号：EP4206896A1

公开(公告)日：2023-07-05

申请号：EP23157346.0

申请日：2019-02-06

Applicant: Hewlett-Packard Development Company L.P.

Inventor： ROSSI, John ,  LINN, Scott ,  GARDNER, James ,  NESS, Erik

IPC: G06F3/12 ,  B41J2/045

Abstract: A fluid ejection controller interface includes input logic to receive control data packets and a first clock signal, each control data packet including a set of primitive data bits and a set of random bits, wherein the input logic identifies the random bits in the received control data packets to facilitate the creation of modified control data packets. The fluid ejection controller interface includes a clock signal generator to generate a second clock signal that is different than the first clock signal, and output logic to receive the modified control data packets, and output the modified control data packets to a fluid ejection controller of a fluid ejection device based on the second clock signal.