公开(公告)号：US11947289B2

公开(公告)日：2024-04-02

申请号：US17789041

申请日：2020-12-30

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

Inventor： Jin Seok Lee ,  Bong Hee Lee ,  Jin Yoon Kim

IPC: G03G15/20

CPC classification number: G03G15/2035 ,  G03G15/2028

Abstract: An example image forming apparatus includes a main body, a printing engine to be disposed in the main body to form an image on a printing medium, a fixing apparatus including a fixing roller and a fixing belt disposed to face the fixing roller, and a jam prevention apparatus including a fixed frame disposed adjacent to the fixing apparatus, and a movable apparatus to be detachably fastened to the fixed frame through a plurality of adjusting screws, to adjust a gap with the fixing belt according to a fastening direction of the plurality of adjusting screws.

公开(公告)号：US20240255870A1

公开(公告)日：2024-08-01

申请号：US18631655

申请日：2024-04-10

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

Inventor： Sun Ae Park ,  Bong Hee Lee ,  Jung Jae Lee

IPC: G03G15/20

CPC classification number: G03G15/2017 ,  G03G15/2053

Abstract: A device to prevent fire of a fusing belt having a heater positioned inside includes at least one temperature control member adjacent to one side of the fusing belt and, when the at least one temperature control member detects abnormal heat from the fusing belt based on a temperature of the fusing belt, the at least one temperature control member to cut off a supply of electricity to the heater to prevent the fire. The device also includes a heat absorption member adjacent to the other side of the fusing belt and to absorb latent heat from the fusing belt to lower the temperature of the fusing belt to prevent the fire.

公开(公告)号：US11982955B2

公开(公告)日：2024-05-14

申请号：US17790210

申请日：2021-01-05

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

Inventor： Sun Ae Park ,  Bong Hee Lee ,  Jung Jae Lee

IPC: G03G15/20

CPC classification number: G03G15/2017 ,  G03G15/2053

Abstract: A device to prevent fire of a fusing belt having a heater positioned inside includes at least one temperature control member adjacent to one side of the fusing belt and, when the at least one temperature control member detects abnormal heat from the fusing belt based on a temperature of the fusing belt, the at least one temperature control member to cut off a supply of electricity to the heater to prevent the fire. The device also includes a heat absorption member adjacent to the other side of the fusing belt and to absorb latent heat from the fusing belt to lower the temperature of the fusing belt to prevent the fire.

公开(公告)号：US11194274B2

公开(公告)日：2021-12-07

申请号：US17051063

申请日：2018-11-21

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

Inventor： Dong Kyun Kim ,  Bong Hee Lee ,  Seong Yul Kim ,  Se Min An ,  Jin Seok Lee

IPC: G03G15/20 ,  G03G21/16

Abstract: A fuser including an endless belt, a pressurizing roller, a heater, a shaft supporting member, rotation member, and a washer. The pressurizing roller is to form a heating nip with the endless belt and is to rotate to drive the endless belt. The heater is to supply heat to the heating nip. The supporting member includes a shaft and a flange The rotation member is inserted into an inner diameter portion of the endless belt to support the endless belt, the rotation member is to be slidably rotatable with respect to the shaft. A washer interposed between the rotation member and the flange in an axial direction to regulate a movement of the endless belt in the axial direction, the washer is to slide-contact with at least one of the flange and the rotation member.

公开(公告)号：US11378903B2

公开(公告)日：2022-07-05

申请号：US16963953

申请日：2018-09-20

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

Inventor： Dong Kyun Kim ,  Bong Hee Lee ,  Seong Yul Kim ,  Se Min An

IPC: G03G15/20

Abstract: A fixing device includes a pressing roller, a fixing belt disposed to be rotated by the pressing roller around a rotation axis of the fixing belt, a pressing member disposed within the fixing belt and to press a portion of the fixing belt toward the pressing roller, a pair of rotation ring members to support corresponding ends of the fixing belt respectively and being rotated by the fixing belt, and a pair of flange members to rotatably support the pair of the rotation ring members respectively, in which a rotation ring member of the pair of rotation ring members is an inclined state towards the fixing belt on a corresponding flange member, in which, with respect to the rotational axis of the fixing belt, an area of the rotation ring member opposite to a contacting area of the rotation member contacting with the pressed portion of the fixing belt protrudes more toward the fixing belt than the contacting area.