公开(公告)号：US20240329578A1

公开(公告)日：2024-10-03

申请号：US18739274

申请日：2024-06-10

Applicant: Toshiba Tec Kabushiki Kaisha

Inventor： Kazuhiko KIKUCHI ,  Sasuke ENDO ,  Masaya TANAKA ,  Ryota SAEKI ,  Kiyotaka MURAKAMI ,  Kousei MIYASHITA ,  Ryosuke KOJIMA ,  Yohei DOI ,  Yuki KAWASHIMA ,  Eiji SHINOHARA

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G15/2064

Abstract: A heating device includes a rotatable film, a heater disposed inside the film and including a substrate that extends along a first direction and having two surfaces opposite to each other, and a heater element on one of the surfaces of the substrate, and a heat conductor including a first portion contacting the other surface of the substrate, and a second portion that is adjacent to the first portion in a second direction perpendicular to the first direction and does not contact the other surface of the substrate. A width of the second portion is wider than the heater element in the second direction.

公开(公告)号：US20230350327A1

公开(公告)日：2023-11-02

申请号：US18346501

申请日：2023-07-03

Applicant: Toshiba Tec Kabushiki Kaisha

Inventor： Sasuke ENDO

IPC: G03G15/20

CPC classification number: G03G15/2039

Abstract: A heating device for heating a medium on which an image can be formed includes a cylindrical belt, a first heating unit, and a second heating unit. The first and second heating units are inside the cylindrical belt and face an inner circumferential surface of the belt. A controller is configured to control the heating units to generate heat. When the medium is to be heated to reach an image fixing temperature at which the image can be fixed to the medium, the controller controls the first and second heating units to both generate heat. After the medium is heated to the image fixing temperature, the controllers control the first heating unit to generate heat, but not the second heating unit.

公开(公告)号：US20230259058A1

公开(公告)日：2023-08-17

申请号：US18308633

申请日：2023-04-27

Applicant: Toshiba Tec Kabushiki Kaisha

Inventor： Kazuhiko KIKUCHI ,  Sasuke ENDO ,  Masaya TANAKA ,  Ryota SAEKI ,  Kiyotaka MURAKAMI ,  Kousei MIYASHITA ,  Ryosuke KOJIMA ,  Yohei DOI ,  Yuki KAWASHIMA ,  Eiji SHINOHARA

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G15/2064

Abstract: A heating device includes a rotatable film, a heater disposed inside the film and including a substrate that extends along a first direction and having two surfaces opposite to each other, and a heater element on one of the surfaces of the substrate, and a heat conductor including a first portion contacting the other surface of the substrate, and a second portion that is adjacent to the first portion in a second direction perpendicular to the first direction and does not contact the other surface of the substrate. A width of the second portion is wider than the heater element in the second direction.

公开(公告)号：US20210247712A1

公开(公告)日：2021-08-12

申请号：US17242205

申请日：2021-04-27

Applicant: TOSHIBA TEC KABUSHIKI KAISHA

Inventor： Kazuhiko KIKUCHI ,  Sasuke ENDO ,  Masaya TANAKA ,  Ryota SAEKI ,  Kiyotaka MURAKAMI ,  Kousei MIYASHITA ,  Ryosuke KOJIMA ,  Yohei DOI ,  Yuki KAWASHIMA ,  Eiji SHINOHARA

IPC: G03G15/20

Abstract: A heating device includes a rotatable film, a heater including a substrate that extends along a first direction, and a heater element on the substrate and facing the film, a heat conductor having first and second surfaces and including a first portion contacting the substrate, and a second portion that is adjacent to the first portion in a second direction perpendicular to the first direction and does not contact the substrate, and a temperature sensing element on the second surface at a position corresponding to the second portion. A thickness of the first portion from the first surface to the second surface is greater than a thickness of the second portion from the first surface to the second surface.

公开(公告)号：US20240411254A1

公开(公告)日：2024-12-12

申请号：US18812110

申请日：2024-08-22

Applicant: Toshiba Tec Kabushiki Kaisha

Inventor： Sasuke ENDO

IPC: G03G15/20 ,  G03G15/00

Abstract: According to an embodiment, an image forming apparatus includes: a motor that drives a fixing device; and a controller. The motor outputs a signal corresponding to a driving current value of the motor. The controller performs a first operation where a magnitude value of the signal has fallen out of a first range while driving the motor in a first operation mode. The controller performs a second operation where the magnitude value of the signal has fallen out of a second range while driving the motor in a second operation mode.

公开(公告)号：US20230393505A1

公开(公告)日：2023-12-07

申请号：US18159564

申请日：2023-01-25

Applicant: Toshiba Tec Kabushiki Kaisha

Inventor： Sasuke ENDO

IPC: G03G15/20

CPC classification number: G03G15/2053

Abstract: According to one embodiment, a fixing device includes a cylindrical fixing body, a heater unit, and a heat transfer member. The heater unit is in an interior region surrounded by the cylindrical fixing body and includes a heating element group. The heater unit extends lengthwise in a first direction parallel to an axial direction of the cylindrical fixing. The heat transfer member has a contact surface that contacts heater unit and an opposite surface on a side opposite the heater unit. The outer edges of the opposite surface in the first direction are at positions along the first direction that are beyond the outer edges of the contact surface in the first direction.

公开(公告)号：US20230280685A1

公开(公告)日：2023-09-07

申请号：US18317719

申请日：2023-05-15

Applicant: Toshiba Tec Kabushiki Kaisha

Inventor： Sasuke ENDO

IPC: G03G15/20 ,  G03G15/00

CPC classification number: G03G15/205 ,  G03G15/5054 ,  G03G15/2017 ,  G03G15/2053 ,  G03G15/5029

Abstract: According to an embodiment, an image forming apparatus includes: a motor that drives a fixing device; and a controller. The motor outputs a signal corresponding to a driving current value of the motor. The controller performs a first operation where a magnitude value of the signal has fallen out of a first range while driving the motor in a first operation mode. The controller performs a second operation where the magnitude value of the signal has fallen out of a second range while driving the motor in a second operation mode.

公开(公告)号：US20220365468A1

公开(公告)日：2022-11-17

申请号：US17874635

申请日：2022-07-27

Applicant: TOSHIBA TEC KABUSHIKI KAISHA

Inventor： Sasuke ENDO

IPC: G03G15/20

Abstract: A heating device includes a cylindrical body with a hollow interior and a heater inside the hollow interior. A first surface of the heater faces the inner surface of the cylindrical body. A heat transfer member is on a second surface of the heater. A grease is between the heater and the heat transfer member. A support member is provided including a first portion fixed to the second surface of the heater and a second portion contacting a surface of the heat transfer member. The support member includes a third portion between the first and second portions. The third portion does not contact the second surface of the heater between the first and second portions and provides a space for grease from between the heater and the heat transfer member to accumulate.

公开(公告)号：US20240319644A1

公开(公告)日：2024-09-26

申请号：US18735611

申请日：2024-06-06

Applicant: Toshiba Tec Kabushiki Kaisha

Inventor： Sasuke ENDO

IPC: G03G15/20

CPC classification number: G03G15/2053

Abstract: A connector member connectable to a heating unit inside a heating roller of a fixing device includes a cover having a recess into which an end of a substrate of the heating unit in a first direction parallel to a rotation axis of the heating roller can be inserted, and an energizing terminal stored in the cover and including a contact portion on one side of the recess and to be in contact with a contact point on the substrate, and a connecting portion to which a conducting wire for receiving electric power is connected and located on the other side of the recess.

公开(公告)号：US20240036502A1

公开(公告)日：2024-02-01

申请号：US18485524

申请日：2023-10-12

Applicant: Toshiba Tec Kabushiki Kaisha

Inventor： Sasuke ENDO

IPC: G03G15/20

CPC classification number: G03G15/2053 ,  G03G15/2039 ,  G03G15/2064 ,  G03G2215/2032

Abstract: A heating unit includes a cylinder which rotates about an axis parallel to a first direction. A heater has a first surface abutting on an inner surface of the cylinder at a nip position. A support member is on a second surface of the heater and also contacts the cylinder. A first heating element is in the heater at a first position along the first direction. A second heating element in the heater is at a second position spaced from the first position. A first temperature sensor is above the first position. A locking portion of the heater is at a third position along the first direction. The locking portion engages the support member and restricts movement of the heater in the first direction. The first position is near a first outer edge of the cylinder. The second position is closer to a central portion of the cylinder.