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公开(公告)号：US20200103824A1
公开(公告)日：2020-04-02
申请号：US16575384
申请日：2019-09-19
摘要： A developing device includes a developing roller, a cover to cover the developing roller from above the developing roller, a filter to cover a vent of the cover to filter air and collect toner passing through the vent, and a pressing member engaged with the cover in which the filter is installed. The cover includes a projecting support to support the filter. The pressing member holds the filter between the pressing member and the cover. The projecting support is projected from one end toward the other end of the vent in a transverse direction of the vent at a part of the cover in a longitudinal direction of the developing roller to block the vent, and cantilevered on the one end. A gap is provided between a tip of the projecting support and an inner edge of the cover on the other end.
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公开(公告)号：US20210041806A1
公开(公告)日：2021-02-11
申请号：US16934218
申请日：2020-07-21
申请人： Yuuki TSUCHIYA , Yoshihiro FUJIWARA , Yuki OSHIKAWA , Ryusuke MASE , Naohiro KAWASHIMA , Hotaru HASHIKAWA
发明人： Yuuki TSUCHIYA , Yoshihiro FUJIWARA , Yuki OSHIKAWA , Ryusuke MASE , Naohiro KAWASHIMA , Hotaru HASHIKAWA
摘要： A developing device includes a developer conveyer, a bearing, a flange, and a developer mover. The developer conveyer is rotatable and configured to convey a developer. The bearing rotatably supports a support shaft of the developer conveyer. The flange is disposed at an end portion of the developer conveyor to regulate a movement of the developer in an axial direction of the developer conveyer. The developer mover is disposed on a surface of the flange facing the bearing and configured to move the developer that enters between the flange and the bearing.
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公开(公告)号：US20200174400A1
公开(公告)日：2020-06-04
申请号：US16691710
申请日：2019-11-22
申请人： Naohiro KAWASHIMA , Yoshihiro FUJIWARA , Yuki OSHIKAWA , Yuuki TSUCHIYA , Ryusuke MASE , Tsutomu IWATA
发明人： Naohiro KAWASHIMA , Yoshihiro FUJIWARA , Yuki OSHIKAWA , Yuuki TSUCHIYA , Ryusuke MASE , Tsutomu IWATA
IPC分类号： G03G15/08
摘要： A developer container includes a plurality of components combined together to form a space to store a developer. The plurality of components includes a first component and a second component. The developer container further includes a sealant to bond the first component and the second component, and a position regulator to regulate relative positions of the first component and the second component so as to maintain a distance between an adhesion portion of the first component and an adhesion portion of the second component.
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公开(公告)号：US20210080856A1
公开(公告)日：2021-03-18
申请号：US17021312
申请日：2020-09-15
申请人： Hotaru HASHIKAWA , Yoshihiro FUJIWARA , Nobuo TAKAMI , Ryusuke MASE , Kazuki YOGOSAWA , Tomohiro KUBOTA , Naohiro KAWASHIMA , Yuuki TSUCHIYA
发明人： Hotaru HASHIKAWA , Yoshihiro FUJIWARA , Nobuo TAKAMI , Ryusuke MASE , Kazuki YOGOSAWA , Tomohiro KUBOTA , Naohiro KAWASHIMA , Yuuki TSUCHIYA
IPC分类号： G03G15/08
摘要： An image forming apparatus includes an image bearer, a rotation shaft, a developing device, and a supply portion. The developing device includes a developing device main portion that rotates around the rotation shaft between a developing position and a retracted position and includes a developer, a developer bearer to face or be away from the image bearer depending on whether the developing device main portion is at the developing position or the retracted position, a replenishment portion having a replenishment port with an opposite surface formed by an arc drawn around the rotation shaft to replenish the developer, and a non-rotating portion. The supply portion has a supply port with an opposite surface formed by an arc drawn around the rotation shaft and facing the opposite surface of the replenishment port. The supply port communicates the replenishment port and supplies the developer to the developing device through the replenishment port.
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5.发明申请公开(公告)号：US20220397841A1
公开(公告)日：2022-12-15
申请号：US17751673
申请日：2022-05-24
IPC分类号： G03G15/08
摘要： A developer accommodating device includes a rotator including a rotation shaft, a collar that rotates together with the rotation shaft, and a bearing rotatably supporting the rotation shaft via the collar. The rotation shaft includes a resin material, and collar including a metal material. The collar includes a collar main portion to be in sliding contact with the bearing, and a flange portion closer to a center of the rotator in an axial direction of the rotator than the collar main portion. The collar main portion has a first outer diameter, and the flange portion has a second outer diameter greater than the first outer diameter of the collar main portion.
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公开(公告)号：US20240077813A1
公开(公告)日：2024-03-07
申请号：US18235885
申请日：2023-08-21
CPC分类号： G03G15/0815 , G03G15/0812 , G03G15/0921 , G03G2215/0648 , G03G2215/0838
摘要： A developing device includes a developer bearer rotatable in a rotation direction and forming a developing range, a holder, and an entrance seal. The holder has a facing face facing the developer bearer upstream from the developing range in the rotation direction, a support face defining a part of an outer face of the developing device, and a relay face extending from one end of the support face to one end of the relay face connected to the facing face to form an acute tip portion closer to the developing range than the one end. The entrance seal has a free end projecting from the one end as a cantilever, and a length of the entrance seal from a tip of the free end of the entrance seal to the one end is shorter than a length of the relay face from the acute tip portion to the one end.
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7.发明申请公开(公告)号：US20170293257A1
公开(公告)日：2017-10-12
申请号：US15467582
申请日：2017-03-23
申请人： Tatsuya OHHIRA , Masayuki YAMANE , Keiichi YOSHIDA , Atsushi KUROKAWA , Toshiki HAYASHI , Yuuki TSUCHIYA
发明人： Tatsuya OHHIRA , Masayuki YAMANE , Keiichi YOSHIDA , Atsushi KUROKAWA , Toshiki HAYASHI , Yuuki TSUCHIYA
IPC分类号： G03G15/08
CPC分类号： G03G21/1814 , G03G15/0889 , G03G15/0891 , G03G15/0893 , G03G2215/0822
摘要： A developing device includes a developer bearer, a casing defining an upper compartment to contain the developer and a lower compartment disposed lower than the upper compartment, to contain the developer, and a first conveyor and a second conveyor disposed in the upper compartment and the lower compartment, respectively, to convey the developer in a longitudinal direction of the developer bearer and circulate the developer between the upper compartment and the lower compartment through a first communicating opening, through which the developer is conveyed upward, and a second communicating opening. A developer-lifting range of the upper compartment, which opposes the first communicating opening, is larger in volume than a developer-lifting range of the lower compartment. One of the upper compartment and the lower compartment is disposed adjacent to the developer bearer to supply the developer to the developer bearer.
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8.发明申请公开(公告)号：US20180136586A1
公开(公告)日：2018-05-17
申请号：US15696237
申请日：2017-09-06
申请人： Yuuki TSUCHIYA , Masayuki YAMANE , Keiichi YOSHIDA , Atsushi KUROKAWA , Toshiki HAYASHI , Tatsuya OHHIRA
发明人： Yuuki TSUCHIYA , Masayuki YAMANE , Keiichi YOSHIDA , Atsushi KUROKAWA , Toshiki HAYASHI , Tatsuya OHHIRA
IPC分类号： G03G15/08
CPC分类号： G03G15/0893 , G03G15/0881 , G03G15/0898 , G03G21/1647 , G03G2215/0838
摘要： A developing device includes a casing to contain developer, a developer bearer, an upper and lower developer conveyors to convey the developer to one side in an axial direction of rotation shafts thereof, a communicating portion disposed on a first end side on which an input gear is disposed, to fall the developer from the upper developer conveyor to the lower developer conveyor, bearings to receive end portions the upper and lower developer conveyors, and first and second end seals to seal gaps in the bearings on the upper and lower developer conveyors, respectively. The first end seals and the second end are disposed on the first end side and a second end side, respectively. A sliding friction between the rotation shaft and at least one of the first end seals is smaller than a sliding friction between the rotation shaft and the second end seal.
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公开(公告)号：US20230315006A1
公开(公告)日：2023-10-05
申请号：US18015083
申请日：2021-08-17
申请人： Kazuki YOGOSAWA , Tatsuya KUBO , Yuuki TSUCHIYA , Shinya KARASAWA
发明人： Kazuki YOGOSAWA , Tatsuya KUBO , Yuuki TSUCHIYA , Shinya KARASAWA
IPC分类号： G03G21/18
CPC分类号： G03G21/1842
摘要： A positioning member defines a facing distance between a first rotating body and a second rotating body. The positioning member includes a fitting portion, a groove, and a restricting member. A fitted portion of the first rotating body is to be rotatably fitted into the fitting portion. The groove has a groove shape extending in a predetermined direction from an opening to an abutting portion. A shaft portion of the second rotating body is to be slidably movable in the groove. The restricting member restricts movement of the shaft portion in the predetermined direction in a state in which the shaft portion abuts on the abutting portion in the groove. The restricting member is detachably disposed on the groove.
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公开(公告)号：US20220072862A1
公开(公告)日：2022-03-10
申请号：US17467468
申请日：2021-09-07
申请人： Tatsuya KUBO , Shinya KARASAWA , Kazuki YOGOSAWA , Yuuki TSUCHIYA
发明人： Tatsuya KUBO , Shinya KARASAWA , Kazuki YOGOSAWA , Yuuki TSUCHIYA
IPC分类号： B41J2/175
摘要： A process cartridge includes an image bearer, a developer bearer, and a positioning member. The image bearer is rotatable. The developer bearer is rotatable and opposite to the image bearer. The positioning member determines an opposing distance between the image bearer and the developer bearer, and includes a fitting portion and a groove. A fitted portion of the image bearer rotatably fits to the fitting portion. The groove extends from a ceiling portion to a bottom portion. A shaft portion of the developer bearer is slidingly movable in the groove. The groove is formed such that the shaft portion of the developer bearer contacts the bottom portion and is supported by the bottom portion. The ceiling portion of the groove is open upward so that the shaft portion of the developer bearer is insertable to and removable from the groove.
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