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公开(公告)号：US12124195B2
公开(公告)日：2024-10-22
申请号：US18453261
申请日：2023-08-21
发明人： Yohei Doi , Eiji Shinohara , Kazuhiko Kikuchi , Sasuke Endo , Masaya Tanaka , Ryota Saeki , Kousei Miyashita , Ryosuke Kojima , Yuki Kawashima , Kiyotaka Murakami
IPC分类号： G03G15/20
CPC分类号： G03G15/2039 , G03G15/2053 , G03G2215/2025
摘要： 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.
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公开(公告)号：US11275330B2
公开(公告)日：2022-03-15
申请号：US17209103
申请日：2021-03-22
发明人： Yohei Doi , Eiji Shinohara , Kazuhiko Kikuchi , Sasuke Endo , Masaya Tanaka , Ryota Saeki , Kousei Miyashita , Ryosuke Kojima , Yuki Kawashima , Kiyotaka Murakami
IPC分类号： G03G15/20
摘要： 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.
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公开(公告)号：US10990044B2
公开(公告)日：2021-04-27
申请号：US16885209
申请日：2020-05-27
发明人： Yohei Doi , Eiji Shinohara , Kazuhiko Kikuchi , Sasuke Endo , Masaya Tanaka , Ryota Saeki , Kousei Miyashita , Ryosuke Kojima , Yuki Kawashima , Kiyotaka Murakami
IPC分类号： G03G15/20
摘要： 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.
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公开(公告)号：US20170155778A1
公开(公告)日：2017-06-01
申请号：US14953704
申请日：2015-11-30
发明人： Naomi Nakane , Setsuo Takada , Noboru Furuyama , Yoshiaki Okano , Masaya Tanaka , Hiroshi Katakura , Chie Miyauchi , Katsutoshi Mita , Hiroshi Ishii
CPC分类号： H04N1/00331 , H04N1/40012 , H04N2201/0094
摘要： 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.
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公开(公告)号：US11880151B1
公开(公告)日：2024-01-23
申请号：US17944097
申请日：2022-09-13
发明人： Masaya Tanaka , Hiroshi Ota
IPC分类号： G03G15/20
CPC分类号： G03G15/2039 , G03G15/2053
摘要： 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.
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公开(公告)号：US11106164B2
公开(公告)日：2021-08-31
申请号：US16880935
申请日：2020-05-21
发明人： Kazuhiko Kikuchi , Sasuke Endo , Masaya Tanaka , Ryota Saeki , Kiyotaka Murakami , Kousei Miyashita , Ryosuke Kojima , Yohei Doi , Yuki Kawashima , Eiji Shinohara
IPC分类号： G03G15/20
摘要： 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.
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公开(公告)号：US12055878B2
公开(公告)日：2024-08-06
申请号：US18308633
申请日：2023-04-27
发明人： Kazuhiko Kikuchi , Sasuke Endo , Masaya Tanaka , Ryota Saeki , Kiyotaka Murakami , Kousei Miyashita , Ryosuke Kojima , Yohei Doi , Yuki Kawashima , Eiji Shinohara
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G15/2064
摘要： 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.
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公开(公告)号：US11774887B2
公开(公告)日：2023-10-03
申请号：US17591560
申请日：2022-02-02
发明人： Yohei Doi , Eiji Shinohara , Kazuhiko Kikuchi , Sasuke Endo , Masaya Tanaka , Ryota Saeki , Kousei Miyashita , Ryosuke Kojima , Yuki Kawashima , Kiyotaka Murakami
IPC分类号： G03G15/20
CPC分类号： G03G15/2039 , G03G15/2053 , G03G2215/2025
摘要： 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.
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公开(公告)号：US11669033B2
公开(公告)日：2023-06-06
申请号：US17696786
申请日：2022-03-16
发明人： Kazuhiko Kikuchi , Sasuke Endo , Masaya Tanaka , Ryota Saeki , Kiyotaka Murakami , Kousei Miyashita , Ryosuke Kojima , Yohei Doi , Yuki Kawashima , Eiji Shinohara
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G15/2064
摘要： 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.
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公开(公告)号：US11281132B2
公开(公告)日：2022-03-22
申请号：US16921861
申请日：2020-07-06
发明人： Kiyotaka Murakami , Kazuhiko Kikuchi , Sasuke Endo , Masaya Tanaka , Ryota Saeki , Kousei Miyashita , Ryosuke Kojima , Yohei Doi , Yuki Kawashima , Eiji Shinohara
摘要： 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.
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