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公开(公告)号：US11803135B2
公开(公告)日：2023-10-31
申请号：US17876562
申请日：2022-07-29
申请人： Nagisa Nakamura , Koji Kiryu , Masahiro Ashikawa , Hiroaki Takagi , Jumpei Yamaguchi , Masashi Kasamai , Kanji Ubukata
发明人： Nagisa Nakamura , Koji Kiryu , Masahiro Ashikawa , Hiroaki Takagi , Jumpei Yamaguchi , Masashi Kasamai , Kanji Ubukata
CPC分类号： G03G15/1615 , G03G15/167 , G03G15/5008
摘要： A transfer device includes a plurality of photoconductors, a belt, a plurality of primary transfer rollers and control circuitry. The plurality of primary transfer rollers is disposed for the plurality of photoconductors, respectively. The plurality of primary transfer rollers brings the belt into contact with or separate the belt from the plurality of photoconductors. The control circuitry causes at least one of the plurality of primary transfer rollers to press against a corresponding at least one of the plurality of photoconductors to shift a printing mode.
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公开(公告)号：US11789383B2
公开(公告)日：2023-10-17
申请号：US17731280
申请日：2022-04-28
申请人： Jumpei Yamaguchi , Koji Kiryu , Masahiro Ashikawa , Masashi Kasamai , Kanji Ubukata , Nagisa Nakamura
发明人： Jumpei Yamaguchi , Koji Kiryu , Masahiro Ashikawa , Masashi Kasamai , Kanji Ubukata , Nagisa Nakamura
CPC分类号： G03G15/1615 , G03G15/0189 , G03G15/5008 , G03G15/5058 , G03G15/55
摘要： An image forming apparatus includes a plurality of image bearers, a plurality of rotation reference position detectors, and circuitry. Each of the plurality of rotation reference position detectors faces a corresponding image bearer of the plurality of image bearers to detect a rotation reference position of the corresponding image bearer. The circuitry performs, before an operation of rotating the plurality of image bearers, alignment control based on a result of detection performed by the plurality of rotation reference position detectors. The alignment control is control of driving of the plurality of image bearers to acquire a given relationship between the respective rotation reference positions of the plurality of image bearers. The circuitry determines whether to perform the alignment control based on whether the operation of rotating the plurality of image bearers is a function maintenance related operation.
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公开(公告)号：US10082818B2
公开(公告)日：2018-09-25
申请号：US15358551
申请日：2016-11-22
IPC分类号： H02H7/20 , G05F3/26 , H02P31/00 , H02P29/024 , G03G15/00 , H02H9/04 , H02P29/032
CPC分类号： G05F3/267 , G03G15/80 , G03G2221/166 , G03G2221/1684 , H02H9/041 , H02P29/0241 , H02P29/032 , H02P31/00
摘要： An electronic circuit includes a first consumption part, at least one second consumption part, and a current mirror circuit. The first consumption part passes a current to consume electricity when a voltage exceeding a first voltage is applied. At least one second consumption part is disposed in parallel with the first consumption part and passes a current to consume electricity. The current mirror circuit passes, to the second consumption part, a current corresponding to a current that flows through the first consumption part.
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公开(公告)号：US11971675B2
公开(公告)日：2024-04-30
申请号：US18059579
申请日：2022-11-29
申请人： Masashi Kasamai , Koji Kiryu , Masahiro Ashikawa , Jumpei Yamaguchi , Kanji Ubukata , Nagisa Nakamura
发明人： Masashi Kasamai , Koji Kiryu , Masahiro Ashikawa , Jumpei Yamaguchi , Kanji Ubukata , Nagisa Nakamura
IPC分类号： G03G15/00
CPC分类号： G03G15/5025
摘要： An image forming apparatus includes image bearers, motors, a reference position detector, and processing circuitry. The circuitry senses a density of a toner image on each bearer; forms an image pattern and senses, based on a detection result of the detector and a sensing result of the density, density unevenness in a rotation cycle and a phase of the density unevenness with respect to a rotational position reference of each bearer; calculates a target phase based on the phase sensed; calculates a relative phase difference based on a rotational position and the target phase of each bearer; selects, as a reference image bearer, an image bearer having a minimum phase correction value, based on a calculation result of the difference; and controls the rotational position of each of the other image bearers with respect to the reference image bearer to the phase correction value, with the motors being driven.
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公开(公告)号：US20220357687A1
公开(公告)日：2022-11-10
申请号：US17731280
申请日：2022-04-28
申请人： Jumpei YAMAGUCHI , Koji KIRYU , Masahiro ASHIKAWA , Masashi KASAMAI , Kanji UBUKATA , Nagisa NAKAMURA
发明人： Jumpei YAMAGUCHI , Koji KIRYU , Masahiro ASHIKAWA , Masashi KASAMAI , Kanji UBUKATA , Nagisa NAKAMURA
IPC分类号： G03G15/16
摘要： An image forming apparatus includes a plurality of image bearers, a plurality of rotation reference position detectors, and circuitry. Each of the plurality of rotation reference position detectors faces a corresponding image bearer of the plurality of image bearers to detect a rotation reference position of the corresponding image bearer. The circuitry performs, before an operation of rotating the plurality of image bearers, alignment control based on a result of detection performed by the plurality of rotation reference position detectors. The alignment control is control of driving of the plurality of image bearers to acquire a given relationship between the respective rotation reference positions of the plurality of image bearers. The circuitry determines whether to perform the alignment control based on whether the operation of rotating the plurality of image bearers is a function maintenance related operation.
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6.发明授权Medium conveying apparatus, image forming apparatus, medium conveying system, and medium conveying method 有权介质输送设备，成像设备，介质输送系统和介质输送方法公开(公告)号：US09022386B2
公开(公告)日：2015-05-05
申请号：US14321896
申请日：2014-07-02
申请人： Masashi Kasamai , Yusuke Ishizaki , Takahisa Koike
发明人： Masashi Kasamai , Yusuke Ishizaki , Takahisa Koike
CPC分类号： B65H5/062 , B65H7/06 , B65H43/00 , B65H2511/417 , B65H2511/52 , B65H2513/511 , B65H2515/32 , B65H2220/01 , B65H2220/03 , B65H2220/02
摘要： A medium conveying apparatus includes a conveying status detecting unit configured to determine a conveyance status of a medium based on a driving torque of a driving unit, wherein the conveying unit is configured to convey the medium at a reference speed, the reference speed being faster than the upstream conveying unit at least when the medium is conveyed from the upstream conveying unit, and the reference speed being slower than the downstream conveying unit at least when the medium is conveyed to the downstream conveying unit, and wherein the conveyance status of the medium is detected by the comparison of a prescribed reference torque to the driving torque of the driving unit at least when the medium is conveyed between the upstream conveying unit and the conveying unit or when the medium is conveyed between the conveying unit and the downstream conveying unit.
摘要翻译： 介质传送装置包括传送状态检测单元，其被配置为基于驱动单元的驱动扭矩来确定介质的传送状态，其中传送单元被配置为以参考速度传送介质，参考速度快于 所述上游输送单元至少当所述介质从所述上游输送单元输送时，并且至少当所述介质被输送到所述下游输送单元时，所述基准速度比所述下游输送单元慢，并且所述介质的输送状态为 至少当介质在上游输送单元和输送单元之间输送时，或当介质在输送单元和下游输送单元之间输送时，通过比较规定的参考扭矩与驱动单元的驱动扭矩相比较来检测。
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公开(公告)号：US12117755B2
公开(公告)日：2024-10-15
申请号：US18046207
申请日：2022-10-13
申请人： Kanji Ubukata , Koji Kiryu , Masashi Kasamai , Jumpei Yamaguchi , Masahiro Ashikawa , Nagisa Nakamura
发明人： Kanji Ubukata , Koji Kiryu , Masashi Kasamai , Jumpei Yamaguchi , Masahiro Ashikawa , Nagisa Nakamura
CPC分类号： G03G15/5025 , G03G15/01
摘要： A control device includes circuitry. The circuitry detects density unevenness of a toner image occurring according to a rotation cycle of a plurality of image bearers based on rotation phases and toner image density of the plurality of image bearers, controls rotation phases and rotation speeds of the plurality of image bearers, corrects the rotation phases and the rotation speeds of the plurality of image bearers, controls the rotation speeds of at least two of the plurality of image bearers to be a specified rotation speed, and starts a detection operation of the rotation phases of the plurality of image bearers after a difference between each of the rotation speeds of the at least two of the plurality of image bearers and the specified rotation speed falls within a specified range.
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公开(公告)号：US20230042229A1
公开(公告)日：2023-02-09
申请号：US17876562
申请日：2022-07-29
申请人： Nagisa NAKAMURA , Koji KIRYU , Masahiro ASHIKAWA , Hiroaki TAKAGI , Jumpei YAMAGUCHI , Masashi KASAMAI , Kanji UBUKATA
发明人： Nagisa NAKAMURA , Koji KIRYU , Masahiro ASHIKAWA , Hiroaki TAKAGI , Jumpei YAMAGUCHI , Masashi KASAMAI , Kanji UBUKATA
摘要： A transfer device includes a plurality of photoconductors, a belt, a plurality of primary transfer rollers and control circuitry. The plurality of primary transfer rollers is disposed for the plurality of photoconductors, respectively. The plurality of primary transfer rollers brings the belt into contact with or separate the belt from the plurality of photoconductors. The control circuitry causes at least one of the plurality of primary transfer rollers to press against a corresponding at least one of the plurality of photoconductors to shift a printing mode.
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公开(公告)号：US20170153658A1
公开(公告)日：2017-06-01
申请号：US15358551
申请日：2016-11-22
IPC分类号： G03G15/00 , H02P29/024 , G05F3/26 , H02P31/00
CPC分类号： G05F3/267 , G03G15/80 , G03G2221/166 , G03G2221/1684 , H02H9/041 , H02P29/0241 , H02P29/032 , H02P31/00
摘要： An electronic circuit includes a first consumption part, at least one second consumption part, and a current mirror circuit. The first consumption part passes a current to consume electricity when a voltage exceeding a first voltage is applied. At least one second consumption part is disposed in parallel with the first consumption part and passes a current to consume electricity. The current mirror circuit passes, to the second consumption part, a current corresponding to a current that flows through the first consumption part.
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10.发明申请MEDIUM CONVEYING APPARATUS, IMAGE FORMING APPARATUS, MEDIUM CONVEYING SYSTEM, AND MEDIUM CONVEYING METHOD 有权中型输送装置，图像形成装置，中等输送系统和中等输送方式公开(公告)号：US20140312563A1
公开(公告)日：2014-10-23
申请号：US14321896
申请日：2014-07-02
申请人： Masashi KASAMAI , Yusuke ISHIZAKI , Takahisa KOIKE
发明人： Masashi KASAMAI , Yusuke ISHIZAKI , Takahisa KOIKE
CPC分类号： B65H5/062 , B65H7/06 , B65H43/00 , B65H2511/417 , B65H2511/52 , B65H2513/511 , B65H2515/32 , B65H2220/01 , B65H2220/03 , B65H2220/02
摘要： A medium conveying apparatus includes a conveying status detecting unit configured to determine a conveyance status of a medium based on a driving torque of a driving unit, wherein the conveying unit is configured to convey the medium at a reference speed, the reference speed being faster than the upstream conveying unit at least when the medium is conveyed from the upstream conveying unit, and the reference speed being slower than the downstream conveying unit at least when the medium is conveyed to the downstream conveying unit, and wherein the conveyance status of the medium is detected by the comparison of a prescribed reference torque to the driving torque of the driving unit at least when the medium is conveyed between the upstream conveying unit and the conveying unit or when the medium is conveyed between the conveying unit and the downstream conveying unit.
摘要翻译： 介质传送装置包括传送状态检测单元，其被配置为基于驱动单元的驱动扭矩来确定介质的传送状态，其中传送单元被配置为以参考速度传送介质，参考速度快于 所述上游输送单元至少当所述介质从所述上游输送单元输送时，并且至少当所述介质被输送到所述下游输送单元时，所述基准速度比所述下游输送单元慢，并且所述介质的输送状态为 至少当介质在上游输送单元和输送单元之间输送时，或当介质在输送单元和下游输送单元之间输送时，通过比较规定的参考扭矩与驱动单元的驱动扭矩相比较来检测。
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