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

IPC分类号： G03G15/08 ,  G03G15/09

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.

公开(公告)号：US10705484B2

公开(公告)日：2020-07-07

申请号：US16575384

申请日：2019-09-19

申请人： Yuki Oshikawa ,  Yoshihiro Fujiwara ,  Naohiro Kawashima ,  Ryusuke Mase ,  Yuuki Tsuchiya

发明人： Yuki Oshikawa ,  Yoshihiro Fujiwara ,  Naohiro Kawashima ,  Ryusuke Mase ,  Yuuki Tsuchiya

IPC分类号： G03G15/08 ,  G03G21/20

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.

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.

公开(公告)号：US20160195846A1

公开(公告)日：2016-07-07

申请号：US14982586

申请日：2015-12-29

申请人： Shinnosuke KOSHIZUKA ,  Koichi YAMAZAKI ,  Tatsuya KUBO ,  Atsushi NAKAMOTO ,  Teppei KIKUCHI ,  Kazunori SUZUKI ,  Naohiro KAWASHIMA

发明人： Shinnosuke KOSHIZUKA ,  Koichi YAMAZAKI ,  Tatsuya KUBO ,  Atsushi NAKAMOTO ,  Teppei KIKUCHI ,  Kazunori SUZUKI ,  Naohiro KAWASHIMA

IPC分类号： G03G21/20 ,  G03G15/08

CPC分类号： G03G21/20 ,  G03G15/0889 ,  G03G21/1647

摘要： A developing device includes a developer bearer, a casing including a bearing support and a developer container, a developer conveyor to transport, by rotation, developer in the developer container, a bearing to fit in the bearing support and support a shaft of the developer conveyor rotatably on the casing, and a heat conductor made of a material higher in thermal conductivity than the bearing support and including a heat absorbing portion to contact the bearing and absorb heat from the bearing and a heat dissipating portion to release the heat. The bearing includes an outer ring secured to the bearing support, an inner ring to rotate together with the shaft of the developer conveyor, and a ball disposed between the outer ring and the inner ring. The heat conductor is disposed to contact the outer ring of the bearing and contactless with the inner ring and the ball.

摘要翻译： 显影装置包括显影剂载体，包括轴承支撑件和显影剂容器的外壳，用于通过旋转将显影剂容器中的显影剂旋转的显影剂输送器，用于装配在轴承支撑件中的轴承并支撑显影剂输送机的轴 可旋转地安装在壳体上的热导体，以及由导热系数高于轴承座的材料制成的热导体，并​​且包括与轴承接触并吸收热量的吸热部分和散热部分以释放热量。 轴承包括固定到轴承支撑件的外圈，与显影剂输送机的轴一起旋转的内圈，以及设置在外圈和内圈之间的球。 热导体设置成接触轴承的外圈并与内圈和球接触。

公开(公告)号：US11086251B2

公开(公告)日：2021-08-10

申请号：US16579882

申请日：2019-09-24

申请人： Ryusuke Mase ,  Yoshihiro Fujiwara ,  Yuki Oshikawa ,  Naohiro Kawashima ,  Yuuki Tsuchiya

发明人： Ryusuke Mase ,  Yoshihiro Fujiwara ,  Yuki Oshikawa ,  Naohiro Kawashima ,  Yuuki Tsuchiya

IPC分类号： G03G15/08

摘要： An image forming apparatus includes a developing device including at least one stirring rotator configured to stir a developer in the developing device, a driver configured to drive the at least one stirring rotator in forward and reverse rotation, a device detector configured to detect whether the developing device is set in the image forming apparatus, and control circuitry configured to execute a warm-up operation. In the warm-up operation, the driver drives the at least one stirring rotator alternately in the reverse rotation and the forward rotation in response to a detection of setting of the developing device in the image forming apparatus by the device detector and a detection of a predetermined condition.

公开(公告)号：US20170168421A1

公开(公告)日：2017-06-15

申请号：US15368924

申请日：2016-12-05

申请人： Shinnosuke KOSHIZUKA ,  Koichi YAMAZAKI ,  Tatsuya KUBO ,  Atsushi NAKAMOTO ,  Nobuo TAKAMI ,  Kazunori SUZUKI ,  Naohiro KAWASHIMA

发明人： Shinnosuke KOSHIZUKA ,  Koichi YAMAZAKI ,  Tatsuya KUBO ,  Atsushi NAKAMOTO ,  Nobuo TAKAMI ,  Kazunori SUZUKI ,  Naohiro KAWASHIMA

IPC分类号： G03G15/08

CPC分类号： G03G15/0881 ,  G03G15/081 ,  G03G15/0817

摘要： A developing device includes a developer bearer to carry, by rotation, developer to a developing range, a casing including a developer container to contain the developer and housing the developer bearer, a gap retainer adjacent to the developer container and downstream from the developing range in a rotation direction of the developer bearer, an opposing wall opposing an end face of the gap retainer in an axial direction of the developer bearer, a first seal disposed between the end face of the gap retainer and the opposing wall, and a contact portion disposed adjacent to an end portion of the gap retainer in the axial direction of the developer bearer. The gap retainer secures a predetermined gap between the developer bearer and the gap retainer. The contact portion contacts, via a second seal, the gap retainer in a direction intersecting the axial direction of the developer bearer.

公开(公告)号：US09897938B2

公开(公告)日：2018-02-20

申请号：US15368924

申请日：2016-12-05

申请人： Shinnosuke Koshizuka ,  Koichi Yamazaki ,  Tatsuya Kubo ,  Atsushi Nakamoto ,  Nobuo Takami ,  Kazunori Suzuki ,  Naohiro Kawashima

发明人： Shinnosuke Koshizuka ,  Koichi Yamazaki ,  Tatsuya Kubo ,  Atsushi Nakamoto ,  Nobuo Takami ,  Kazunori Suzuki ,  Naohiro Kawashima

IPC分类号： G03G15/08

CPC分类号： G03G15/0881 ,  G03G15/081 ,  G03G15/0817

摘要： A developing device includes a developer bearer to carry, by rotation, developer to a developing range, a casing including a developer container to contain the developer and housing the developer bearer, a gap retainer adjacent to the developer container and downstream from the developing range in a rotation direction of the developer bearer, an opposing wall opposing an end face of the gap retainer in an axial direction of the developer bearer, a first seal disposed between the end face of the gap retainer and the opposing wall, and a contact portion disposed adjacent to an end portion of the gap retainer in the axial direction of the developer bearer. The gap retainer secures a predetermined gap between the developer bearer and the gap retainer. The contact portion contacts, via a second seal, the gap retainer in a direction intersecting the axial direction of the developer bearer.

公开(公告)号：US09817335B2

公开(公告)日：2017-11-14

申请号：US15280268

申请日：2016-09-29

申请人： Naohiro Kawashima ,  Koichi Yamazaki ,  Nobuo Takami ,  Atsushi Nakamoto ,  Shinnosuke Koshizuka ,  Tatsuya Kubo ,  Kazunori Suzuki ,  Hiroshi Hosokawa ,  Tetsuro Hirota ,  Kenji Kikuchi

发明人： Naohiro Kawashima ,  Koichi Yamazaki ,  Nobuo Takami ,  Atsushi Nakamoto ,  Shinnosuke Koshizuka ,  Tatsuya Kubo ,  Kazunori Suzuki ,  Hiroshi Hosokawa ,  Tetsuro Hirota ,  Kenji Kikuchi

IPC分类号： G03G15/08

CPC分类号： G03G15/0856 ,  G03G15/0858 ,  G03G15/086

摘要： A powder amount detector includes a vibration plate secured to a powder container to contain powder and positioned at a predetermined position in a stationary state, a shaft to rotate inside the powder container, a contact member attached to the shaft, a vibration detector to detect vibration of the vibration plate, and a detection result processor to determine an amount of the powder in the powder container according to a detection result generated by the vibration detector. The contact member is to flip the vibration plate to cause the vibration plate to repeat elastic deformation and reversion to vibrate. The contact member is to exit an area opposed to the vibration plate after the contact member flips the vibration plate by the time the vibration plate returns to the predetermined position.

公开(公告)号：US20170168418A1

公开(公告)日：2017-06-15

申请号：US15370817

申请日：2016-12-06

申请人： Nobuo TAKAMI ,  Tetsuro HIROTA ,  Kenji KIKUCHI ,  Koichi YAMAZAKI ,  Atsushi NAKAMOTO ,  Naohiro KAWASHIMA ,  Tatsuya KUBO ,  Shinnosuke KOSHIZUKA ,  Kazunori SUZUKI

发明人： Nobuo TAKAMI ,  Tetsuro HIROTA ,  Kenji KIKUCHI ,  Koichi YAMAZAKI ,  Atsushi NAKAMOTO ,  Naohiro KAWASHIMA ,  Tatsuya KUBO ,  Shinnosuke KOSHIZUKA ,  Kazunori SUZUKI

IPC分类号： G03G15/08

CPC分类号： G03G15/0856 ,  G03G15/0858 ,  G03G15/0865 ,  G03G15/0889

摘要： A powder supply device that includes a powder reservoir including a rotator having a rotation shaft, to store powder supplied from a powder container; and a powder amount detector. The powder amount detector includes a detected member disposed in the powder reservoir, a contact member attached to the rotation shaft, to contact the detected member to vibrate or move the detected member, a detector to detect vibration or a displacement of the detected member, and a detection result processor to detect the amount of the powder in the powder reservoir based on detection by the detector. The powder supply device further includes a controller to supply the powder from the powder container to the powder reservoir based on detection by the powder amount detector. The controller rotates the rotator in discharging the powder from the powder reservoir and supplying the powder from the powder container to the powder reservoir.

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.