公开(公告)号：US20210260871A1

公开(公告)日：2021-08-26

申请号：US16772977

申请日：2019-02-06

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

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

IPC: B41J2/045

Abstract: A method for use with a series of analog delay circuits to drive a plurality of actuators with a fire signal is disclosed. A bias signal to affect a selected delay in the analog delay circuits is disabled. The fire signal is provided through the series of analog delay circuits with the bias signal disabled.

公开(公告)号：US20210229430A1

公开(公告)日：2021-07-29

申请号：US16769396

申请日：2019-02-06

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

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

IPC: 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.

公开(公告)号：US20210162735A1

公开(公告)日：2021-06-03

申请号：US16957524

申请日：2019-02-06

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

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

IPC: B41J2/045

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：US20210221155A1

公开(公告)日：2021-07-22

申请号：US16769400

申请日：2019-02-06

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

Inventor： John ROSSI

IPC: B41J29/38 ,  H04L7/00 ,  G06K15/10

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：US20210213729A1

公开(公告)日：2021-07-15

申请号：US16772978

申请日：2019-02-06

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

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

IPC: B41J2/045

Abstract: An integrated circuit includes thermal tracking logic, control logic, and an output interface. The thermal tracking logic determines a temperature of a fluid ejection die. The control logic defines an emulated parameter of the fluid ejection die as a function of the temperature of the fluid ejection die. The output interface outputs the emulated parameter to a printer system based on the function and the temperature of the fluid ejection die.