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1. 发明公开

US20230384730A1 POWDER CONVEYING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME 审中-公开
公开(公告)号：US20230384730A1
公开(公告)日：2023-11-30
申请号：US18200584
申请日：2023-05-23
申请人： Kazuhiro SHIMADA , Seiichi KOGURE , Hideki KIMURA , Hiroshi KIKUCHI , Yusuke ISHIZUKA , Yutaka TAKAHASHI , Takuya AKIYAMA , Yutaka GOTO , Yuuki AOKI
发明人： Kazuhiro SHIMADA , Seiichi KOGURE , Hideki KIMURA , Hiroshi KIKUCHI , Yusuke ISHIZUKA , Yutaka TAKAHASHI , Takuya AKIYAMA , Yutaka GOTO , Yuuki AOKI
IPC分类号： G03G21/10 , G03G21/12 , G03G15/08
CPC分类号： G03G21/105 , G03G21/12 , G03G15/0891 , G03G2215/0802 , G03G2221/0005
摘要： A powder conveying device includes a drop conveyance passage, an intersecting conveyance passage, a conveying screw, and a floating member. Powder entering from an inflow port drops in the drop conveyance passage. The intersecting conveyance passage communicates with a lower end of the drop conveyance passage and extends in an intersecting direction that intersects the drop conveyance passage. The conveying screw is disposed in the intersecting conveyance passage and rotates in a specified direction to convey the powder in the intersecting direction. The floating member is movably installed in the drop conveyance passage and floats in the drop conveyance passage to move by contact with the conveying screw. The inflow port and the floating member interfere with each other to prevent the floating member from coming out of the inflow port of the drop conveyance passage.

2. 发明授权

US11789385B2 Transfer bias and pressure in an image forming apparatus 有权
公开(公告)号：US11789385B2
公开(公告)日：2023-10-17
申请号：US17707315
申请日：2022-03-29
申请人： Yuuki Aoki , Seiichi Kogure , Hideki Kimura , Hiroshi Kikuchi , Yutaka Takahashi , Yusuke Ishizuka , Takuya Akiyama , Yutaka Goto , Kazuhiro Shimada
发明人： Yuuki Aoki , Seiichi Kogure , Hideki Kimura , Hiroshi Kikuchi , Yutaka Takahashi , Yusuke Ishizuka , Takuya Akiyama , Yutaka Goto , Kazuhiro Shimada
IPC分类号： G03G15/16
CPC分类号： G03G15/1675 , G03G15/167
摘要： An image forming apparatus includes an image bearer; a nip forming member configured to form a transfer nip between the image bearer and the nip forming member; a nip pressure changer configured to change a nip pressure of the transfer nip; a transfer bias applier configured to apply, to the transfer nip, a transfer bias in which an AC component is superimposed on a DC component; and a DC component adjuster configured to adjust the DC component in the transfer bias, according to the nip pressure that is changed by the nip pressure changer.

3. 发明授权

US10935907B2 Developer conveyance device and image forming apparatus incorporating same 有权
公开(公告)号：US10935907B2
公开(公告)日：2021-03-02
申请号：US16876134
申请日：2020-05-18
申请人： Yusuke Ishizuka , Akira Fujimori , Hideki Kimura , Yutaka Takahashi , Hiroshi Kikuchi , Hiroyuki Uenishi , Johji Yahagi
发明人： Yusuke Ishizuka , Akira Fujimori , Hideki Kimura , Yutaka Takahashi , Hiroshi Kikuchi , Hiroyuki Uenishi , Johji Yahagi
IPC分类号： G03G15/08 , G03G15/095
摘要： A developer conveyance device includes a downward conveyance path in which a developer falls under gravity, a transverse conveyance path communicating with a lower end of the downward conveyance path and extending in a transverse direction intersecting with the downward conveyance path, a transport screw disposed in the transverse conveyance path, and a floating member. The transport screw is configured to rotate in a predetermined direction to transport the developer in the transverse direction. The floating member is configured to contact the transport screw rotating in the predetermined direction to float in the downward conveyance path.

4. 发明授权

US09958823B2 Device including roller, and image forming apparatus and process cartridge incorporating same 有权
公开(公告)号：US09958823B2
公开(公告)日：2018-05-01
申请号：US15285919
申请日：2016-10-05
申请人： Daisuke Tomita , Takeshi Shintani , Yasuhiro Maehata , Yasuhito Kuboshima , Yusuke Ishizuka , Nobuo Kuwabara , Norio Kudoh , Kento Aoki
发明人： Daisuke Tomita , Takeshi Shintani , Yasuhiro Maehata , Yasuhito Kuboshima , Yusuke Ishizuka , Nobuo Kuwabara , Norio Kudoh , Kento Aoki
IPC分类号： G03G21/00 , G03G15/00 , G03G21/16
CPC分类号： G03G21/0094 , G03G15/75 , G03G21/1647 , G03G21/1671
摘要： A device disposed opposing an image bearer includes a roller to rotate while contacting a surface of the image bearer, a rolling bearing fitted around a shaft located at an end of the roller in an axial direction of the roller, a frame to house the roller, and a bearing support removably attached to the frame. The rolling bearing includes an outer ring, an inner ring, and a rolling element disposed between the outer ring and the inner ring. The bearing support holds, from an outer-ring side, the rolling bearing interposed between the bearing support and the frame. The bearing support includes a receiving portion to contact the outer ring of the rolling bearing and bias the rolling bearing toward the frame in a direction in which the rolling bearing is interposed between the bearing support and the frame.

5. 发明申请

US20160209771A1 IMAGE FORMING APPARATUS 有权
标题翻译：图像形成装置
公开(公告)号：US20160209771A1
公开(公告)日：2016-07-21
申请号：US14997223
申请日：2016-01-15
申请人： Yasuhiro Maehata , Nobuo Kuwabara , Kenji Honjoh , Yasuhito Kuboshima , Yusuke Ishizuka , Takeshi Shintani
发明人： Yasuhiro Maehata , Nobuo Kuwabara , Kenji Honjoh , Yasuhito Kuboshima , Yusuke Ishizuka , Takeshi Shintani
IPC分类号： G03G15/02
CPC分类号： G03G15/0216 , G03G15/5008
摘要： An image forming apparatus includes a process cartridge that includes an image bearer including a rotary shaft and rotates about the rotary shaft; a charger to charge a surface of the image bearer; and a developing device to develop an electrostatic latent image formed on the image bearer into a visible toner image. The charger includes a charging roller that rotates about a shaft together with the image bearer during image formation and electrically charges a surface of the image bearer. A surface linear speed of the charging roller is made slower than a surface linear speed of the image bearer. The image forming apparatus includes a charging roller controller that switches the rotational speed of the charging roller to a first rotational speed slower than the linear speed of the image bearer and a second rotational speed identical to the linear speed of the image bearer.
摘要翻译：图像形成装置包括：处理盒，包括包括旋转轴的图像承载件，并且围绕旋转轴旋转; 用于对图像承载体的表面充电的充电器; 以及显影装置，用于将形成在图像载体上的静电潜像显影成可见的调色剂图像。充电器包括充电辊，其在图像形成期间与图像载体一起围绕轴旋转，并对图像载体的表面进行电荷充电。充电辊的表面线速度比图像承载体的表面线速度慢。图像形成装置包括充电辊控制器，其将充电辊的旋转速度切换到比图像承载的线速度慢的第一旋转速度和与图像承载的线速度相同的第二旋转速度。

6. 发明授权

US09383715B2 Lubricant supplying device, process cartridge and image forming apparatus 有权
标题翻译：润滑剂供应装置，处理盒和成像装置
公开(公告)号：US09383715B2
公开(公告)日：2016-07-05
申请号：US14935021
申请日：2015-11-06
申请人： Kenji Honjoh , Takeshi Shintani , Nobuo Kuwabara , Yasuhiro Maehata , Yasuhito Kuboshima , Yusuke Ishizuka
发明人： Kenji Honjoh , Takeshi Shintani , Nobuo Kuwabara , Yasuhiro Maehata , Yasuhito Kuboshima , Yusuke Ishizuka
IPC分类号： G03G21/00
CPC分类号： G03G21/0094
摘要： A lubricant supplying device includes a lubricant supplier contacting an image bearer, a solid lubricant contacting the roller, a detector detecting a lubricant amount, and a controller controlling a supplying of the roller based on a detector detection. The detector outputs to the controller a first signal of a near-end state when the amount reaches a first amount, a second signal of an end state when the amount reaches a second amount smaller than the first amount, and a third signal of an absolute end state when the amount reaches a third amount smaller than the second amount. The controller temporarily stops the supplying when the second signal is output, cancels a roller temporary stopped state even when lubricant replacement is not completed after this state, stops the supplying when the third signal is output, and maintains a roller stopped state until the replacement is completed after this state.
摘要翻译：润滑剂供给装置包括：与图像承载体接触的润滑剂供给装置，与辊接触的固体润滑剂，检测润滑剂量的检测器，以及基于检测器检测器控制辊的供给的控制器。当量达到第一量时，检测器向控制器输出近端状态的第一信号，当量达到小于第一量的第二量时的结束状态的第二信号，以及绝对值的第三信号当该量达到小于第二量的第三量时。当输出第二信号时，控制器临时停止供给，即使在该状态之后润滑剂更换未完成时也停止辊临时停止状态，当输出第三信号时停止供给，并保持辊停止状态直到更换为在这个状态之后完成。

7. 发明授权

US09268292B2 Image forming apparatus including first and second bias voltage supply devices 有权
标题翻译：图像形成装置，包括第一和第二偏置电压供应装置
公开(公告)号：US09268292B2
公开(公告)日：2016-02-23
申请号：US14026263
申请日：2013-09-13
申请人： Takeshi Kojima , Hirotaka Hatta , Toshiya Satoh , Akira Asaoka , Hiroyuki Uenishi , Yusuke Ishizuka
发明人： Takeshi Kojima , Hirotaka Hatta , Toshiya Satoh , Akira Asaoka , Hiroyuki Uenishi , Yusuke Ishizuka
IPC分类号： G03G21/00
CPC分类号： G03G21/0035 , G03G21/0023
摘要： An image forming apparatus includes a first image forming device, a plurality of second image forming devices, a first bias voltage supply device, and a second bias voltage supply device. The first image forming device and the second image forming device form a toner image. The first bias voltage supply device applies a bias voltage to a first component of the first image forming device. The second bias voltage supply device applies a bias voltage to a second component of each of the plurality of second image forming devices.
摘要翻译：图像形成装置包括第一图像形成装置，多个第二图像形成装置，第一偏置电压供给装置和第二偏置电压供给装置。第一图像形成装置和第二图像形成装置形成调色剂图像。第一偏置电压供给装置向第一图像形成装置的第一部件施加偏置电压。第二偏置电压供给装置对多个第二图像形成装置中的每一个的第二分量施加偏置电压。

8. 发明申请

US20140233997A1 CLEANING UNIT, PROCESS CARTRIDGE INCORPORATING SAME, AND IMAGE FORMING APPARATUS INCORPORATING SAME 有权
标题翻译：清洁单元，与其同时进行的过程盒，以及映射装置的图像形成装置
公开(公告)号：US20140233997A1
公开(公告)日：2014-08-21
申请号：US14168308
申请日：2014-01-30
申请人： Akira ASAOKA , Hirotaka HATTA , Toshiya SATO , Takeshi KOJIMA , Hiroyuki UENISHI , Yusuke ISHIZUKA
发明人： Akira ASAOKA , Hirotaka HATTA , Toshiya SATO , Takeshi KOJIMA , Hiroyuki UENISHI , Yusuke ISHIZUKA
IPC分类号： G03G21/00
CPC分类号： G03G21/0035 , G03G21/0011
摘要： A cleaning unit, which is included in a process cartridge or an image forming apparatus, includes a brush rotary body to remove toner, a toner collecting rotary body to collect the toner, a toner collecting blade to scrape the toner, and a cleaning blade to scrape the toner falling from the brush rotary body. The image carrier, the brush rotary body, and the toner collecting rotary body rotate in the same direction. The cleaning blade, the brush rotary body, and the toner collecting rotary body are located to cause a tangential line passing through a contact area of the brush rotary body and the toner collecting rotary body on an outer peripheral circle around a shaft of the brush rotary body to have an intersection point intersecting a non-contact surface of the cleaning blade disposed opposite to a contact portion of the cleaning blade with the image carrier.
摘要翻译：包括在处理盒或图像形成装置中的清洁单元包括用于去除调色剂的刷旋转体，用于收集调色剂的调色剂收集旋转体，用于刮除调色剂的调色剂收集刮板，以及清洁刮板刮擦从刷子旋转体掉落的墨粉。图像载体，刷旋转体和调色剂收集旋转体沿相同方向旋转。定位清洁刮板，刷子旋转体和调色剂收集旋转体，使切线在刷子旋转体的轴周围的外周圆上通过刷子旋转体和调色剂收集旋转体的接触区域本体具有与清洁刀片的与接触部分相对的清洁刀片的非接触表面与图像载体相交的交点。

9. 发明申请

US20230061068A1 BIASING FORCE ADJUSTING DEVICE, TRANSFER DEVICE, AND IMAGE FORMING APPARATUS 有权
公开(公告)号：US20230061068A1
公开(公告)日：2023-03-02
申请号：US17885557
申请日：2022-08-11
申请人： Yutaka GOTO , Seiichi KOGURE , Hiroshi KIKUCHI , Hideki KIMURA , Yutaka TAKAHASHI , Kazuhiro SHIMADA , Yusuke ISHIZUKA , Takuya AKIYAMA , Yuuki AOKI
发明人： Yutaka GOTO , Seiichi KOGURE , Hiroshi KIKUCHI , Hideki KIMURA , Yutaka TAKAHASHI , Kazuhiro SHIMADA , Yusuke ISHIZUKA , Takuya AKIYAMA , Yuuki AOKI
IPC分类号： B41J25/312 , B65H5/06
摘要： A biasing force adjusting device includes a roller, a roller holder, a first biasing member, and a second biasing member. The roller faces a mover. The roller holder holds the roller and is displaceable with respect to the mover. The first biasing member applies a first biasing force to the roller holder to press the roller against the mover. The second biasing member applies a second biasing force greater than the first biasing force to the roller holder to press the roller against the mover.

10. 发明申请

US20200233365A1 CLEANING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS 审中-公开
公开(公告)号：US20200233365A1
公开(公告)日：2020-07-23
申请号：US16735296
申请日：2020-01-06
申请人： Hideki Kimura , Akira Fujimori , Hiroshi Kikuchi , Yutaka Takahashi , Hiroyuki Uenishi , Yusuke Ishizuka , Johji Yahagi
发明人： Hideki Kimura , Akira Fujimori , Hiroshi Kikuchi , Yutaka Takahashi , Hiroyuki Uenishi , Yusuke Ishizuka , Johji Yahagi
IPC分类号： G03G21/00
摘要： A cleaning device includes a brush roller configured to contact an image bearer while rotating to remove toner adhering to an image bearer, a bias applying device configured to apply a bias to the brush roller, and control circuitry configured to causes the bias applying device to apply a first bias in a first period from when the brush roller is new to when a cumulative travel distance or a cumulative rotation time of the brush roller reaches a predetermined value, and to apply a second bias in a second period after the first period. The first bias sends a first current through the brush roller, and the second bias sends a second current through the brush roller. The absolute value of the first current is smaller than the absolute value of the second current.

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