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公开(公告)号：US11561490B2
公开(公告)日：2023-01-24
申请号：US17465307
申请日：2021-09-02
发明人： Hitoshi Kubota
IPC分类号： G03G15/16
摘要： An image forming apparatus includes an image forming portion, an intermediary transfer unit mountable in and dismountable from a main assembly and including a belt onto which the toner image is transferred from an image bearing member, a cleaning unit mountable to and dismountable from the intermediary transfer unit and including a cleaning member for cleaning a surface of the belt, a fuse provided on the cleaning unit and and being rendered non-conductible by energization, a detecting portion for detecting whether or not a current has flowed through the fuse, and a controller for controlling the image forming portion so as to carry out an operation in which, in a case that the detecting portion detects that the current has flowed through the fuse, a predetermined toner image is formed on the belt and is supplied to a contact portion between the cleaning member and the belt.
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公开(公告)号：US20180253037A1
公开(公告)日：2018-09-06
申请号：US15909807
申请日：2018-03-01
发明人： Hitoshi Kubota
CPC分类号： G03G15/168 , G03G15/161 , G03G21/10 , G03G2215/1661
摘要： A belt unit removably attached to an apparatus body includes a cleaning unit configured to clean a belt, and a sheet metal configured to hold a blade for cleaning the belt is fixed to the cleaning unit. The sheet metal is in contact with a supporting portion of the apparatus body, whereby vibrations of the sheet metal is reduced.
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公开(公告)号：US20220082962A1
公开(公告)日：2022-03-17
申请号：US17465307
申请日：2021-09-02
发明人： Hitoshi Kubota
IPC分类号： G03G15/16
摘要： An image forming apparatus includes an image forming portion, an intermediary transfer unit mountable in and dismountable from a main assembly and including a belt onto which the toner image is transferred from the image bearing member, a cleaning unit mountable to and dismountable from the intermediary transfer unit and including a cleaning member for cleaning a surface of the belt, a fuse provided on the cleaning unit and for cutting off conduction by energization, a detecting portion for detecting whether or not a current flowed through the fuse, and a controller for controlling the image forming portion so as to carry out an operation in which in a case that the detecting portion detects that the current flowed through the fuse, a predetermined toner image is formed on the belt and is supplied to a contact portion between the cleaning member and the belt.
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公开(公告)号：US11022915B2
公开(公告)日：2021-06-01
申请号：US16426396
申请日：2019-05-30
发明人： Hitoshi Kubota , Yasuhiro Shimoi , Hiroki Takayama
摘要： An image forming apparatus includes a belt unit including an endless belt, a supporting unit and a steering unit, and further includes a cleaning unit, a receiving opening and a communicating portion. The communicating portion includes a tube-shaped portion constituted by a bellows-shaped elastic member capable of expansion and contraction with movement of the steering unit.
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公开(公告)号：US20180164714A1
公开(公告)日：2018-06-14
申请号：US15827254
申请日：2017-11-30
发明人： Masafumi Takahashi , Hitoshi Kubota , Yohei Gamo
IPC分类号： G03G15/08
摘要： This invention provides a developing apparatus including: first and second chambers containing developer and configured to form a circulation path of the developer; a first feeding member arranged in the first chamber and feeding the developer in a first direction; a second feeding member arranged in the second chamber and feeding the developer in a second direction opposite to the first direction; first and second communication parts through which the developer is transferred; a feeding path having a discharging port and communicating with the first chamber on a downstream side relative to the first communication part in the first direction to feed the developer toward the discharging port; a sealing part sealing the developer; a feeding path sealing part sealing the feeding path on an upstream side relative to the discharging port in the first direction; and an unsealing mechanism receiving a driving force and unsealing the sealing part.
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公开(公告)号：US09645543B2
公开(公告)日：2017-05-09
申请号：US14994481
申请日：2016-01-13
发明人： Hitoshi Kubota , Hiromasa Katayama
IPC分类号： G03G21/00
CPC分类号： G03G21/0029
摘要： A cleaning device includes a cleaning member including a cleaning blade and a supporting plate for supporting the cleaning blade; a frame; first and second fixing portions, provided on the frame, for fixing the supporting plate in one end side and the other end side with respect to a longitudinal direction of the cleaning blade; a recessed portion provided on the frame at a position between the first and second fixing portions with respect to the longitudinal direction and recessed more than the first and second fixing portions in a direction away from the supporting plate; and a sealing material, applied onto the recessed portion within a range of the first and second fixing portions with respect to a perpendicular direction to the longitudinal direction, for sealing between the supporting plate fixed on the first and second fixing portions and the recessed portion.
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公开(公告)号：US09217960B2
公开(公告)日：2015-12-22
申请号：US14561405
申请日：2014-12-05
发明人： Hideki Mori , Keiko Fujita , Hiroshi Saito , Hitoshi Kubota
CPC分类号： G03G15/1615 , G03G2215/0132 , G03G2215/0193
摘要： An image forming apparatus includes: image bearing members; a belt unit including an endless belt; a slackness forming unit for performing a first function of forming a belt slacking region, at least at a portion where the belt opposes the image bearing members, by causing the slackness forming unit to act on the belt unit and for performing a second function of eliminating the belt slacking region; and a guiding unit for guiding the belt unit so that the slackness forming unit performs the first function in a state in which the belt is spaced from the image bearing members and so that the slackness forming unit performs the second function in a state in which the belt slacking region contacts the image bearing members.
摘要翻译： 图像形成装置包括：图像承载部件; 带单元，包括环形带; 松弛形成单元，用于通过使松弛形成单元作用在皮带单元上，并且执行消除皮带单元的第二功能，至少在皮带与图像承载部件相对的部分处执行形成皮带松弛区域的第一功能; 皮带松弛区域; 以及引导单元，用于引导所述带单元，使得所述松弛形成单元在所述带与所述图像承载部件间隔开的状态下执行所述第一功能，并且使得所述松弛形成单元在所述松弛形成单元执行所述第二功能的状态下执行所述第二功能， 皮带松弛区域接触图像承载部件。
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公开(公告)号：US10423095B2
公开(公告)日：2019-09-24
申请号：US15827254
申请日：2017-11-30
发明人： Masafumi Takahashi , Hitoshi Kubota , Yohei Gamo
IPC分类号： G03G15/08
摘要： A developing apparatus includes a developer bearing member bearing and feeding developer including toner and carrier, a first feeding screw arranged in a first chamber and feeding the developer in a first direction, and a second feeding screw arranged in a second chamber and including a first blade portion feeding the developer in a second direction, a second blade portion arranged downstream of the first blade portion and feeding the developer in the first direction, and a third blade portion arranged downstream of the second blade portion. A sealing sheet is arranged upstream of a developer discharging portion and seals initial developer contained in a developing container; and an unsealing mechanism unseals the sealing sheet sealing the initial developer, wherein the sealing sheet is arranged downstream of the second blade portion and upstream of the third blade portion in the second direction.
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公开(公告)号：US10429772B2
公开(公告)日：2019-10-01
申请号：US15909807
申请日：2018-03-01
发明人： Hitoshi Kubota
摘要： A belt unit removably attached to an apparatus body includes a cleaning unit configured to clean a belt, and a sheet metal configured to hold a blade for cleaning the belt is fixed to the cleaning unit. The sheet metal is in contact with a supporting portion of the apparatus body, whereby vibrations of the sheet metal is reduced.
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公开(公告)号：US09256200B2
公开(公告)日：2016-02-09
申请号：US14288560
申请日：2014-05-28
发明人： Keiko Fujita , Hideki Mori , Hiroshi Saito , Hitoshi Kubota
CPC分类号： G03G21/206 , G03G15/0258 , G03G15/2003 , G03G15/2017 , G03G15/234 , G03G15/6529 , G03G15/6573 , G03G21/20 , G03G2215/00679 , G03G2221/1645
摘要： An image forming apparatus includes a fixing unit heating an image formed on a recording medium and disposed along a conveying path conveying the recording medium. The conveying path includes a first guide plate, discharge guide plate portions and second guide plate portion as conveyance guide plates guiding the recording medium. Partition walls and vertical walls are disposed at positions facing these guide plate portions. The air current guide portion guides air taken in from intake ports through an intake guide portion between the respective guide plate portions and each walls.
摘要翻译： 图像形成装置包括：固定单元，加热形成在记录介质上并沿着传送记录介质的输送路径设置的图像。 输送路径包括作为引导记录介质的输送引导板的第一引导板，排出引导板部分和第二引导板部分。 分隔壁和垂直壁设置在面对这些导板部分的位置。 气流引导部通过各导向板部和各壁之间的进气引导部引导从进气口吸入的空气。
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