公开(公告)号：US20240402635A1

公开(公告)日：2024-12-05

申请号：US18695790

申请日：2022-05-18

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

Inventor： Sunhyung LEE ,  Hojin RYU

IPC: G03G15/20

Abstract: An example fuser includes a flexible fusing belt, a backup member located outside the fusing belt to form a fusing nip with the fusing belt, a heater substrate having a first surface including a heating element pattern and a second surface, opposite to the first surface, to heat the fusing belt in the fusing nip, and a heat conduction member in contact with the first surface of the heater substrate to distribute the heat of the heater substrate. The heating element pattern includes a first heating element having a first length greater than a width of a first print medium, and a second heating element having a second length greater than a width of a second print medium and greater than the first length.

公开(公告)号：US20230087040A1

公开(公告)日：2023-03-23

申请号：US17908953

申请日：2021-02-03

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

Inventor： Jaehyeok JANG ,  Sunhyung LEE ,  Hojin RYU

IPC: G03G15/20 ,  H05B3/26

Abstract: An example fuser includes a flexible fixing belt, a back-up to form a fixing nip with the fixing belt, a heater substrate having a first surface on which a heating element pattern is located and a second surface opposite to the first surface, the heater substrate to heat the fixing belt at the fixing nip, and a heat conduction member having a plurality of heat conduction segments contacting the first surface of the heater substrate.

公开(公告)号：US20210373473A1

公开(公告)日：2021-12-02

申请号：US17282940

申请日：2019-09-19

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

Inventor： Sunhyung LEE ,  Sungwoo KANG

IPC: G03G15/20 ,  C08L27/18 ,  C08L79/08 ,  C08K3/38 ,  C08K3/04 ,  C08K7/04

Abstract: A fixing belt includes a substrate layer including a first base resin and a first thermally conductive filler dispersed in the first base resin; and a release layer provided on the substrate layer, wherein the first base resin includes at least one selected from a polyimide, a polyamide, and a polyamideimide, and the first thermally conductive filler includes at least one selected from carbon black, graphite, boron nitride (BN), carbon nanotubes (CNTs), and carbon fibers, and the substrate layer has a thermal conductivity in a thickness direction of about 1.5W/m-K or more.

公开(公告)号：US20230384720A1

公开(公告)日：2023-11-30

申请号：US18027615

申请日：2021-06-17

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

Inventor： Sunhyung LEE

IPC: G03G15/20 ,  B32B15/18 ,  B32B27/28 ,  B32B15/08

CPC classification number: G03G15/2057 ,  B32B15/18 ,  B32B27/285 ,  B32B15/08 ,  G03G2215/2025 ,  G03G2215/2048 ,  B32B2307/7376 ,  B32B2433/00

Abstract: An example fixing unit includes a flexible fixing belt, a backup member located outside the fixing belt to form a fixing nip, and a plate heater in contact with the fixing belt to heat the fixing belt in the fixing nip, wherein the fixing belt includes a first abrasion prevention layer disposed on a surface facing the plate heater and comprising polyetheretherketone (PEEK), and the plate heater includes a second abrasion prevention layer in contact with the first abrasion prevention layer and comprising glass.

公开(公告)号：US20230097936A1

公开(公告)日：2023-03-30

申请号：US17908594

申请日：2021-02-04

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

Inventor： Hojin RYU ,  Sunhyung LEE ,  Sungwoo KANG

IPC: G03G15/20

Abstract: An example fuser includes a flexible fixing belt, a backup member to form a fixing nip with the fixing belt, a heater substrate for heating the fixing belt at the fixing nip and having a first surface comprising a heating element pattern, a common terminal and a driving power supply terminal for supplying power to the heating element pattern, and a second surface in contact with the fixing belt, and a temperature sensor sheet comprising a temperature sensor, a sensing terminal and an electric wire connecting the temperature sensor to the sensing terminal, wherein the temperature sensor sheet is in contact with the first surface of the heater substrate such that the sensing terminal and the electrical wire do not overlap the common terminal and the driving power supply terminal.

公开(公告)号：US20210333734A1

公开(公告)日：2021-10-28

申请号：US17284392

申请日：2019-09-26

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

Inventor： Sunhyung LEE ,  Seachul BAE ,  Jaehyeok JANG ,  Jingue KO ,  Yongho CHUN

IPC: G03G15/20

Abstract: A fixing device includes a pressing member including a nip plate, and an electron beam-irradiated fluorinated resin film is to be on an outer surface of the nip plate facing toward the backup member.

公开(公告)号：US20210208528A1

公开(公告)日：2021-07-08

申请号：US17210057

申请日：2021-03-23

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

Inventor： Sunhyung LEE

IPC: G03G15/20

Abstract: A heater for a fuser includes a substrate, a first pair of heating elements provided on the substrate, and a second pair of heating elements provided on the substrate. The first pair of heating elements and the second pair of heating elements extend in a length direction of the substrate. The second pair of heating elements is provided between one heating element among the first pair of heating elements and the other heating element among the first pair of heating elements. A distance between the heating elements of the second pair of heating elements is greater than or equal to a value obtained by adding widths of each of the first pair of heating elements and the second pair of heating elements at a center in the length direction of each of the heating elements from the first and second pairs of heating elements.

公开(公告)号：US20200333736A1

公开(公告)日：2020-10-22

申请号：US16955198

申请日：2018-07-26

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

Inventor： Sunhyung LEE

IPC: G03G15/20

Abstract: A heater for a fuser includes a substrate, a first pair of heating elements provided on the substrate, and a second pair of heating elements provided on the substrate. The first pair of heating elements and the second pair of heating elements extend in a length direction of the substrate. The second pair of heating elements is provided between one heating element among the first pair of heating elements and the other heating element among the first pair of heating elements. A distance between the heating elements of the second pair of heating elements is greater than or equal to a value obtained by adding widths of each of the first pair of heating elements and the second pair of heating elements at a center in the length direction of each of the heating elements from the first and second pairs of heating elements.