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公开(公告)号：US12130574B2
公开(公告)日：2024-10-29
申请号：US18458648
申请日：2023-08-30
发明人： Saya Minoshima , Tomonori Watanabe , Ayaka Ohira , Tetsuya Morita
CPC分类号： G03G15/751 , G03G15/2028 , G03G15/2064 , G03G15/65 , G03G15/6555 , G03G15/6558 , G03G15/657 , G03G15/757 , G03G21/206 , G03G2215/1614 , G03G2215/1638
摘要： A chute is located between a transfer roller and a fuser in a direction crossing both a first direction along a drum axis direction and a second direction crossing the first direction. The chute causes a sheet having passed through a transfer nip to be directed toward a fixing nip. The chute is movable in the second direction between a first position and a second position shifted from the first position toward one side in the second direction. The chute located at the second position is farther away from an imaginary plane passing through the nips than the chute located at the first position. A reciprocating mechanism is located on an other side of the chute in the second direction. The reciprocating mechanism reciprocates by drive force from the drive source and presses the chute to move between the first position and the second position.
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公开(公告)号：US12105454B2
公开(公告)日：2024-10-01
申请号：US18306952
申请日：2023-04-25
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G15/2028 , G03G15/2064 , G03G2215/2038
摘要： A fixing device includes a rotatable endless belt, a pressing roller and a fixing pad. The pressing roller contacts an outer peripheral surface of the belt and forms a nip portion in cooperation with the belt. A toner image is formed in the nip portion and fixed onto the recording material by application of heat and pressure. The fixing pad contacts an inner peripheral surface of the belt. The fixing pad includes a contact area in contact with the inner peripheral surface of the belt. The contact area includes a downstream end portion with respect to a conveyance direction of the recording material. The downstream end portion includes a central portion and both end portions with respect to a widthwise direction of the belt. The central portion locates downstream of the both end portions with respect to the conveyance direction.
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公开(公告)号：US12092978B2
公开(公告)日：2024-09-17
申请号：US18329201
申请日：2023-06-05
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G15/2028
摘要： A fixing device includes a first rotator, a second rotator, a heater, a nip formation pad, and a separator. The second rotator contacts an outer circumferential surface of the first rotator to form a nip between the first rotator and the second rotator. The heater includes a resistive heat generator to heat the first rotator. The nip formation pad contacts an inner circumferential surface of the first rotator to form the nip. The separator separates a recording medium passing through the nip from the first rotator. The separator includes a separating surface and a contact. The separating surface is separated from the outer circumferential surface of the first rotator and separates the recording medium from the first rotator. The contact contacts the outer circumferential surface of the first rotator at a position where the first rotator is pinchable between the contact and the nip formation pad.
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4.发明授权公开(公告)号：US12044992B2
公开(公告)日：2024-07-23
申请号：US18160503
申请日：2023-01-27
发明人： Saya Minoshima , Tomonori Watanabe , Yuichi Ikeno
CPC分类号： G03G15/2028 , G03G15/2017 , G03G15/657 , G03G21/1853 , G03G15/0886 , G03G21/1685 , G03G2215/00413 , G03G2215/0692 , G03G2221/1684 , G03G2221/1884
摘要： An image-forming apparatus includes a housing, a cartridge, and a fixing device. The fixing device includes a heating member, a fixing frame, and a shutter movable between an open position for opening an opening of the fixing frame and a closed position for closing the opening. The housing includes: a guide frame for guiding a guide protrusion of the cartridge for attachment of the cartridge to the housing; and a connection link connected to the shutter and positioned opposite the cartridge with respect to the guide frame. The connection link moves the shutter to the open position in conjunction with the attachment of the cartridge to the housing, and moves the shutter to the closed position in conjunction with detachment of the cartridge from the housing. The connection link abuts on the guide protrusion through a through-hole of the guide frame during the attachment of the cartridge to the housing.
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公开(公告)号：US11934120B2
公开(公告)日：2024-03-19
申请号：US18054105
申请日：2022-11-09
CPC分类号： G03G15/2028 , G03G15/2025 , G03G15/2053 , G03G15/50
摘要： An image forming apparatus includes a heating rotary member and a pressing rotary member. The pressing rotary member and the heating rotary member form a fixing nip portion and are configured to apply heat and pressure to a toner image carried on a recording medium at the fixing nip portion, thereby fix the toner image onto the recording medium. The image forming apparatus further includes a winding roller configured to wind up a web used to collect toner that is not fixed to the recording medium, a motor configured to rotate the winding roller, a contact member configured to contact an outside surface of the web wound around the winding roller, a variable resistor disposed so as to be able to change a resistance in accordance with a position of the contact member, and a control unit configured to control an amount of rotation of the motor.
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公开(公告)号：US11892786B2
公开(公告)日：2024-02-06
申请号：US17910050
申请日：2021-03-05
发明人： Manabu Ono
CPC分类号： G03G15/2028 , G03G15/6585
摘要： An image heating device includes a conveyance belt having a heat generation layer, and a first electrode portion, a second electrode portion and a third electrode portion that are in contact with the heat generation layer. The conveyance belt conveys a recording medium that includes an image. A first heat generation region formed on the conveyance belt between the first electrode portion and the second electrode portion generates heat to a first temperature that is equal to or greater than a deformation temperature at which a material forming the image is deformable. A second heat generation region formed between the second electrode portion and the third electrode portion generates heat to a second temperature that is different from the first temperature. The first heat generation region and the second heat generation region are located in a region of the conveyance belt to contact the recording medium.
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公开(公告)号：US20240019800A1
公开(公告)日：2024-01-18
申请号：US18221594
申请日：2023-07-13
发明人： HIDEAKI KURIMOTO , HIDEAKI KADOWAKI
CPC分类号： G03G15/2028 , B65H29/125 , B65H2404/53 , B65H2404/14
摘要： A transport roller pair including: a first-side roller provided with a plurality of roller portions spaced apart in a rotation axial line direction; a fixing device; and an image forming device is provided. The first-side roller includes roller portions. The transport roller pair further includes a second-side roller including a plurality of contact areas and a plurality of non-contact areas as areas other than the plurality of contact areas. At least the contact areas are covered with a release layer, and an outer diameter of each of the plurality of non-contact areas is smaller than an outer diameter of each of the plurality of contact areas. The second-side roller includes a shaft member integrally formed to have a stepped shape.
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公开(公告)号：US20230418192A1
公开(公告)日：2023-12-28
申请号：US18462197
申请日：2023-09-06
发明人： Ai Suzuki , Osamu Sasaoka , Kensuke Umeda , Shinsuke Kobayashi
IPC分类号： G03G15/20
CPC分类号： G03G15/2028 , G03G15/2064 , G03G2215/00548
摘要： An image forming apparatus includes an image forming unit, a fixing unit, first and second rotating members, and a discharge unit to discharge a recording material to an outside. The fixing unit fixes an image from the image forming unit onto the recording material. The first rotating member comes into contact with and guides the image bearing recording material, and is driven to rotate by conveyance of the recording material. The second rotating member comes into contact with the image bearing recording material more on a downstream side than the first rotating member in a conveyance direction of the recording material, guides the recording material, and is driven to rotate by conveyance of the recording material. The first rotating member does not perform swinging motion by coming into contact with the recording material, and the second rotating member performs swinging motion by coming into contact with the recording material.
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公开(公告)号：US20230324835A1
公开(公告)日：2023-10-12
申请号：US18321091
申请日：2023-05-22
发明人： Hiroki Yamaguchi , Terutaka Endo
CPC分类号： G03G15/2028 , G03G21/1685
摘要： A first rotating member a heating recording medium, a second rotating member forming a nip portion with the first rotating member, a holding member disposed downstream of the nip portion in a conveying direction and holds a conveying member conveying the recording medium, and a guide member facing the conveying member, the fixing apparatus is not exposed to an outside when opening/closing member is in a closed state, the fixing apparatus is exposed to the outside when the opening/closing member is in an opened state. A distance between the holding member being in the closed state and at a first position and the guide member is a first distance. A distance between the holding member being in the opened state and at a second position and the guide member is a second distance, and the second distance is shorter than the first distance.
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公开(公告)号：US11782370B2
公开(公告)日：2023-10-10
申请号：US18175421
申请日：2023-02-27
发明人： Kazuhiko Kikuchi
IPC分类号： G03G15/20
CPC分类号： G03G15/2053 , G03G15/2017 , G03G15/2028 , G03G2215/2035
摘要： A heating apparatus includes a cylindrical film and a pressing element that rotates with the cylindrical film and forms a nip with the cylindrical film. A medium is conveyed through the nip from an upstream side to a downstream side. The heating apparatus further includes a heater arranged inside the cylindrical film and on which a heating element is disposed. An upstream end of the heater is located downstream of an upstream end of the nip, and a downstream end of the heater is located downstream of a downstream end of the nip.
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