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公开(公告)号：US20240353780A1
公开(公告)日：2024-10-24
申请号：US18625951
申请日：2024-04-03
发明人： Ronghua LI , Kangjian CHEN
CPC分类号： G03G15/2039 , G03G15/5029
摘要： A photographic fixing temperature control method includes: controlling a photographic fixing module to heat and fix a first part of a recording medium according to a first temperature; and controlling the photographic fixing module to heat and fix a second part of the recording medium according to a second temperature. The first part is located in front of the second part and the first temperature is lower than the second temperature.
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公开(公告)号：US20240302786A1
公开(公告)日：2024-09-12
申请号：US18593740
申请日：2024-03-01
发明人： SHUNTARO TEZUKA
CPC分类号： G03G21/1619 , G03G15/2039 , G03G15/2064 , G03G15/657
摘要： An image forming device includes a fixing unit to fix a toner image to a recording material while heating the recording material, a frame unit provided with a guide portion to guide the recording material to the fixing unit, and a width detector provided in a portion of the frame unit in which the guide portion is provided to detect a recording material width. The frame unit has a first mounting hole to which the width detector is attached and a second mounting hole. The second mounting hole is provided at a position that differs from a position of the first mounting hole in a recording material width direction, the second mounting hole further is provided in the portion of the frame unit in which the guide portion is provided, and the width detector is attachable in the second mounting hole but not attached to the second mounting hole.
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公开(公告)号：US20240302772A1
公开(公告)日：2024-09-12
申请号：US18119203
申请日：2023-03-08
发明人： Sasuke ENDO
CPC分类号： G03G15/2053 , G03G15/2017 , G03G15/2039 , G03G15/5045 , G03G2215/2009 , G03G2215/2016 , G03G2215/2035
摘要： A fixing device includes a film forming a cylinder, a heater, a thermometer, and a series of contact portions. The heater extends within the cylinder and includes a heating element that extends in a longitudinal direction along the cylinder. The thermometer detects a temperature of the cylinder. The plurality of contact portions contact an inner surface of the cylinder and are spaced apart from each other in the longitudinal direction. The contact portions include a first contact portion and a second contact portion. The first contact portion is longitudinally offset from the thermometer and has a first contact area with the cylinder. The second contact portion is longitudinally collocated with the thermometer and has a second contact area with the cylinder. The second contact area is smaller than the first contact area.
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公开(公告)号：US20240288804A1
公开(公告)日：2024-08-29
申请号：US18174465
申请日：2023-02-24
发明人： Hiroshi OTA
IPC分类号： G03G15/20
CPC分类号： G03G15/2039
摘要： A fixing device includes a fixing unit, a temperature sensor, and a controller. The fixing unit includes a fixing member with which a medium on which a developer image is transferred comes into contact and a heat source that supplies heat to the fixing member. The temperature sensor measures temperature of a surface with which the medium comes into contact in the fixing member. The controller outputs information indicating an abnormality of temperature detection by the temperature sensor if an estimation value of temperature of the fixing member is larger than a predetermined reference value.
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公开(公告)号：US20240280930A1
公开(公告)日：2024-08-22
申请号：US18426134
申请日：2024-01-29
发明人： YUTAKA SATO , KENICHI OGAWA
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G15/2039 , G03G15/2064
摘要： A heater includes a substrate, a heat generating member provided on the substrate; and a protective layer. The protective layer continuously covers a region in the substrate where the heat generating member is provided and on a surface of which at least one recess is formed. A first region where the heat generating member is provided and a second region where the recess is formed are not overlapped with each other as the protective layer is viewed in the thickness direction.
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公开(公告)号：US12066778B2
公开(公告)日：2024-08-20
申请号：US18326490
申请日：2023-05-31
申请人： Konica Minolta, Inc.
发明人： Shigeru Tashiro
IPC分类号： G03G15/20
CPC分类号： G03G15/2039 , G03G15/205
摘要： An image forming apparatus includes: a fixing device that thermally fixes an image based on a print job onto a sheet; and a hardware processor that changes a set temperature of the fixing device depending on a type of a printer driver that has generated the print job.
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公开(公告)号：US12055876B2
公开(公告)日：2024-08-06
申请号：US18046366
申请日：2022-10-13
发明人： Kei Ishida
IPC分类号： G03G15/20
CPC分类号： G03G15/2039
摘要： A fixing device includes a heater including a substrate and a resistance heating element, an endless belt, a holder, a first heat conductive member and a second heat conductive member arranged in a longitudinal direction of the heater such that a first end of the first heat conductive member and a second of the second heat conductive member in the longitudinal direction of the heater are adjacent to each other, a temperature sensor configured to detect a temperature at an end part of the heater. The temperature sensor is in contact with the first heat conductive member. A position located between first end of the first heat conductive member and the second end of the second heat conductive member is closer to the temperature sensor than a central position of the resistance heating element in the longitudinal direction of the heater.
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公开(公告)号：US12019384B2
公开(公告)日：2024-06-25
申请号：US17867899
申请日：2022-07-19
发明人： Akitomo Miyamoto
IPC分类号： G03G15/20
CPC分类号： G03G15/2039
摘要： A controller obtains a first duty cycle of a first current to be supplied to a first heater and a second duty cycle of a second current to be supplied to a second heater and controls the first switch and the second switch after the reduction control period, such that the temperature of a fixing unit maintains a target temperature for fixing the image by the fixing unit.
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公开(公告)号：US20240201620A1
公开(公告)日：2024-06-20
申请号：US18592169
申请日：2024-02-29
发明人： Kazuhiko KIKUCHI
IPC分类号： G03G15/20
CPC分类号： G03G15/2039 , G03G15/2053 , G03G15/2064
摘要： An image forming apparatus includes a fixing unit including a heater including a first surface and a second surface opposite to the first surface, a fixing belt having a surface to which a lubricant is applied and contacting the first surface through the lubricant, a heat conductor contacting the second surface, and a pressing roller capable of pressing and rotating the fixing belt, a power supply configured to supply electric power to the heater, a first thermometer configured to measure temperature of the heat conductor, and a controller configured to determine a first amount of electric power to be supplied to the heater based on the temperature of the heat conductor, and control the power supply to supply the determined first amount of electric power to the heater, before controlling the pressing roller to start rotation.
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公开(公告)号：US20240160131A1
公开(公告)日：2024-05-16
申请号：US18506368
申请日：2023-11-10
发明人： KAZUHIRO DODA , TSUGUHIRO YOSHIDA , KOHEI WAKATSU
CPC分类号： G03G15/2039 , G03G15/5004
摘要： A heating apparatus includes a fixing film and a heater in the inner space of the fixing film. The heater includes a long narrow substrate and at least two or more heating elements with different lengths in a longitudinal direction. The heating apparatus further includes first and second temperature detection units configured to detect a temperature of the heater and a control unit configured to set the power ratio between a first heating element and a second heating element in response to the detection result of the second temperature detection unit.
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