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：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：US20170155778A1

公开(公告)日：2017-06-01

申请号：US14953704

申请日：2015-11-30

Applicant: TOSHIBA TEC KABUSHIKI KAISHA ,  KABUSHIKI KAISHA TOSHIBA

Inventor： Naomi Nakane ,  Setsuo Takada ,  Noboru Furuyama ,  Yoshiaki Okano ,  Masaya Tanaka ,  Hiroshi Katakura ,  Chie Miyauchi ,  Katsutoshi Mita ,  Hiroshi Ishii

IPC: H04N1/00 ,  H04N1/40

CPC classification number: H04N1/00331 ,  H04N1/40012 ,  H04N2201/0094

Abstract: In accordance with an embodiment, a character recognition apparatus comprises a decolorization control section configured to carry out a decolorization processing for a sheet; an image reading control section configured to carry out an image reading processing for the sheet to which the decolorization processing is carried out; and a character recognition processing section configured to carry out a character recognition processing for a decolorized image read through the reading processing after the decolorization processing is carried out or for a generated image generated according to the decolorized image.

公开(公告)号：US11880151B1

公开(公告)日：2024-01-23

申请号：US17944097

申请日：2022-09-13

Applicant: TOSHIBA TEC KABUSHIKI KAISHA

Inventor： Masaya Tanaka ,  Hiroshi Ota

IPC: G03G15/20

CPC classification number: G03G15/2039 ,  G03G15/2053

Abstract: An image forming apparatus has an image forming unit to form a toner image on a first sheet and a fixing unit configured to heat the first sheet to fix the image to the first sheet. A control unit begins a cooling process for cooling the fixing unit when an overheating condition is met, then permits the image forming unit to form a toner image on a second sheet after the cooling process ends according to a first cooling condition if a person is detected near the image forming apparatus or after the cooling process ends according to a second cooling condition if a person not detected near the image forming apparatus. The cooling process under the first cooling condition ends in less time than under the second cooling condition.

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：US12216420B2

公开(公告)日：2025-02-04

申请号：US18531216

申请日：2023-12-06

Applicant: Toshiba Tec Kabushiki Kaisha

Inventor： Masaya Tanaka ,  Hiroshi Ota

IPC: G03G15/20

Abstract: An image forming apparatus has an image forming unit to form a toner image on a first sheet and a fixing unit configured to heat the first sheet to fix the image to the first sheet. A control unit begins a cooling process for cooling the fixing unit when an overheating condition is met, then permits the image forming unit to form a toner image on a second sheet after the cooling process ends according to a first cooling condition if a person is detected near the image forming apparatus or after the cooling process ends according to a second cooling condition if a person not detected near the image forming apparatus. The cooling process under the first cooling condition ends in less time than under the second cooling condition.

公开(公告)号：US12135516B2

公开(公告)日：2024-11-05

申请号：US18123516

申请日：2023-03-20

Applicant: TOSHIBA TEC KABUSHIKI KAISHA

Inventor： Masaya Tanaka

IPC: G03G15/20 ,  G03G15/00

Abstract: An image forming apparatus, temperature control method, and temperature control device are provided. The apparatus includes the device, which acquires a first temperature difference between a temperature estimation value of a fixer, which is obtained by simulating a member temperature of a temperature control target serving as a heat capacitor-resistor circuit at an initial stage of operation of the fixer, and a detected temperature detected by a temperature sensor, and acquires a second temperature difference between a temperature estimation value of the fixer, which is obtained during an operation after the first temperature difference is acquired, and a detected temperature. The device calculates a difference between the first temperature difference and the second temperature difference, determines that the detected temperature is abnormal in response to the difference being equal to or greater than a threshold value, and performs temperature control for correcting a target temperature of the member temperature.

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.