公开(公告)号：US12124195B2

公开(公告)日：2024-10-22

申请号：US18453261

申请日：2023-08-21

Applicant: Toshiba Tec Kabushiki Kaisha

Inventor： Yohei Doi ,  Eiji Shinohara ,  Kazuhiko Kikuchi ,  Sasuke Endo ,  Masaya Tanaka ,  Ryota Saeki ,  Kousei Miyashita ,  Ryosuke Kojima ,  Yuki Kawashima ,  Kiyotaka Murakami

IPC: G03G15/20

CPC classification number: G03G15/2039 ,  G03G15/2053 ,  G03G2215/2025

Abstract: An image processing apparatus includes a fixing unit including a belt, and a heater configured to heat the belt and including a substrate and a heating layer that is formed on the substrate, and a controller configured to shut off the heater if no current flows through the belt.

公开(公告)号：US11275330B2

公开(公告)日：2022-03-15

申请号：US17209103

申请日：2021-03-22

Applicant: TOSHIBA TEC KABUSHIKI KAISHA

Inventor： Yohei Doi ,  Eiji Shinohara ,  Kazuhiko Kikuchi ,  Sasuke Endo ,  Masaya Tanaka ,  Ryota Saeki ,  Kousei Miyashita ,  Ryosuke Kojima ,  Yuki Kawashima ,  Kiyotaka Murakami

IPC: G03G15/20

Abstract: An image processing apparatus includes a fixing unit including a heater and a fixing belt. The fixing belt is electrically connected between a first power source and a ground terminal. A controller is configured to control the heater to heat the fixing belt. The controller is further configured to determine whether a current is flowing through the fixing belt and, upon determining that a current is not flowing through the fixing belt, control the heater not to heat the fixing belt.

公开(公告)号：US11106164B2

公开(公告)日：2021-08-31

申请号：US16880935

申请日：2020-05-21

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 cylindrical film configured to be rotated about an axis, a heater including a substrate that extends along a longitudinal direction parallel to the axis, and a heater element on the substrate and facing an inner surface of the cylindrical film. A heat conductor extends along the longitudinal direction and has first and second surfaces. A first portion of the heat conductor contacts the substrate and a second portion of the heat conductor has a groove in the first surface. A temperature sensing element is disposed at a position on the second surface at a position opposite the groove.

公开(公告)号：US11448994B2

公开(公告)日：2022-09-20

申请号：US16828917

申请日：2020-03-24

Applicant: TOSHIBA TEC KABUSHIKI KAISHA

Inventor： Ryosuke Kojima

IPC: G03G15/00 ,  B65H7/06 ,  B65H43/04

Abstract: An image forming apparatus includes a conveyor, an actuator, an image forming unit, a detection unit, and a controller. The conveyor transports a sheet having a length measured in a transport direction. The actuator drives the conveyor. The image forming unit forms an image on the sheet. The detection unit includes a first sheet detection sensor that outputs a detection signal indicating whether the sheet transported by the conveyor passes through a first predetermined detection position. The controller controls the actuator based on the length of the sheet in response to an indication that the detection unit is not operating normally.

公开(公告)号：US10990044B2

公开(公告)日：2021-04-27

申请号：US16885209

申请日：2020-05-27

Applicant: TOSHIBA TEC KABUSHIKI KAISHA

Inventor： Yohei Doi ,  Eiji Shinohara ,  Kazuhiko Kikuchi ,  Sasuke Endo ,  Masaya Tanaka ,  Ryota Saeki ,  Kousei Miyashita ,  Ryosuke Kojima ,  Yuki Kawashima ,  Kiyotaka Murakami

IPC: G03G15/20

Abstract: An image processing apparatus includes a fixing unit including a heater and a fixing belt. The fixing belt is electrically connected between a first power source and a ground terminal. A controller is configured to control the heater to heat the fixing belt. The controller is further configured to determine whether a current is flowing through the fixing belt and, upon determining that a current is not flowing through the fixing belt, control the heater not to heat the fixing belt.

公开(公告)号：US11868067B2

公开(公告)日：2024-01-09

申请号：US17673740

申请日：2022-02-16

Applicant: TOSHIBA TEC KABUSHIKI KAISHA

Inventor： Kiyotaka Murakami ,  Kazuhiko Kikuchi ,  Sasuke Endo ,  Masaya Tanaka ,  Ryota Saeki ,  Kousei Miyashita ,  Ryosuke Kojima ,  Yohei Doi ,  Yuki Kawashima ,  Eiji Shinohara

IPC: G03G15/20 ,  G03G15/00

CPC classification number: G03G15/2039 ,  G03G15/5004

Abstract: A fixing unit or device that can be used in an image forming apparatus includes a first heater element that is formed of a material that increases in electrical resistance with increases in temperature. A controller of the fixing unit is configured to vary a duty ratio of electric power applied to the first heater element during a start-up operation in which the temperature of the first heater element is raised to a target operating temperature. By varying the duty ratio during the start-up operation, changes in the resistance of the first heater element with the heating can be compensated. For example, the duty ratio can be increased during the course of the start-up to achieve the target operating temperature faster.

公开(公告)号：US11307522B2

公开(公告)日：2022-04-19

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：US12055878B2

公开(公告)日：2024-08-06

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：US11774887B2

公开(公告)日：2023-10-03

申请号：US17591560

申请日：2022-02-02

Applicant: TOSHIBA TEC KABUSHIKI KAISHA

Inventor： Yohei Doi ,  Eiji Shinohara ,  Kazuhiko Kikuchi ,  Sasuke Endo ,  Masaya Tanaka ,  Ryota Saeki ,  Kousei Miyashita ,  Ryosuke Kojima ,  Yuki Kawashima ,  Kiyotaka Murakami

IPC: G03G15/20

CPC classification number: G03G15/2039 ,  G03G15/2053 ,  G03G2215/2025

Abstract: An image processing apparatus includes a fixing unit including a fixing belt, and a heater configured to heat the fixing belt and including a substrate and a heating layer that is formed on the substrate, and a controller configured to, upon detecting an absence of a current flowing through the fixing belt, control the heater to not generate heat.

公开(公告)号：US11669033B2

公开(公告)日：2023-06-06

申请号：US17696786

申请日：2022-03-16

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 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 having first and second surfaces and 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 thickness of the first portion of the heat conductor 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.