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.

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.

公开(公告)号：US11474445B2

公开(公告)日：2022-10-18

申请号：US17486921

申请日：2021-09-28

申请人： Yusuke Ishizuka ,  Akira Fujimori ,  Hideki Kimura ,  Hiroshi Kikuchi ,  Yutaka Takahashi

发明人： Yusuke Ishizuka ,  Akira Fujimori ,  Hideki Kimura ,  Hiroshi Kikuchi ,  Yutaka Takahashi

IPC分类号： G03G15/02

摘要： A cleaning device cleans a discharge wire that discharges electric charge onto a discharge target. The cleaning device moves in a longitudinal direction oldie discharge wire. The cleaning device includes a first contact portion that contacts and cleans the discharge wire and a second contact portion that contacts and cleans the discharge wire. When the first contact portion and the second contact portion clean the discharge wire, the first contact portion and the second contact portion sandwich the discharge wire in a discharge direction in which the discharge wire discharges the electric charge onto the discharge target. The discharge direction is parallel to a radial direction of the discharge wire.

公开(公告)号：US12111600B2

公开(公告)日：2024-10-08

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 ,  G03G15/08 ,  G03G21/12 ,  G03G21/16

CPC分类号： G03G21/105 ,  G03G15/0844 ,  G03G15/0858 ,  G03G15/0877 ,  G03G15/0886 ,  G03G15/0891 ,  G03G15/0896 ,  G03G21/10 ,  G03G21/12 ,  G03G21/1647 ,  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.

公开(公告)号：US20220317601A1

公开(公告)日：2022-10-06

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

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.

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.

公开(公告)号：US09201378B2

公开(公告)日：2015-12-01

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。

公开(公告)号：US09141020B2

公开(公告)日：2015-09-22

申请号：US14205621

申请日：2014-03-12

申请人： Hiroyuki Uenishi ,  Hirotaka Hatta ,  Toshiya Sato ,  Takeshi Kojima ,  Akira Asaoka ,  Yusuke Ishizuka

发明人： Hiroyuki Uenishi ,  Hirotaka Hatta ,  Toshiya Sato ,  Takeshi Kojima ,  Akira Asaoka ,  Yusuke Ishizuka

IPC分类号： G03G15/02 ,  G03G21/16

CPC分类号： G03G15/0291 ,  G03G15/0258 ,  G03G21/1647 ,  G03G21/1661

摘要： A charger positioning adjuster, which is included in an image forming apparatus and disposed facing a charger uniformly charging a surface of an image carrier using corona discharging, includes a mounting part provided at a position on which the charger is detachably attached, a positioning member attached to the mounting part and positioning the charger by contacting thereto, and a spacer disposed between the mounting part and the positioning member and adjusting a distance between the surface of the image carrier and the charger.

摘要翻译： 一种充电器定位调节器，其包括在图像形成装置中并且面向使用电晕放电均匀地对图像载体的表面充电的充电器进行设置，所述充电器定位调节器包括设置在充电器可拆卸地附接的位置的安装部， 到安装部分并且通过与充电器接触来定位充电器，以及间隔件，其设置在安装部分和定位部件之间并且调整图像载体的表面与充电器之间的距离。

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。

公开(公告)号：US09195204B2

公开(公告)日：2015-11-24

申请号：US14254006

申请日：2014-04-16

申请人： Yusuke Ishizuka ,  Hirotaka Hatta ,  Toshiya Sato ,  Akira Asaoka ,  Norio Kudo ,  Hiroyuki Uenishi ,  Kenji Sugiura ,  Kazuki Yogosawa

发明人： Yusuke Ishizuka ,  Hirotaka Hatta ,  Toshiya Sato ,  Akira Asaoka ,  Norio Kudo ,  Hiroyuki Uenishi ,  Kenji Sugiura ,  Kazuki Yogosawa

IPC分类号： G03G15/00 ,  G03G21/00 ,  G03G15/16 ,  G03G21/10

CPC分类号： G03G21/0035 ,  G03G15/161 ,  G03G21/105 ,  G03G2215/1661

摘要： An image forming apparatus includes an image carrier, a toner-image forming unit, a transfer unit, a cleaner, a plurality of cylindrical transport path forming members, a falling transport path forming member, and a discharge port. The falling transport path forming member has through holes in a side wall thereof. A second end of each of the transport path forming members is inserted into a corresponding one of the through holes. The falling transport path forming member forms a falling transport path that causes toner ejected from an ejection port disposed in the second end to fall. The discharge port is disposed in a lower part of the falling transport path forming member to discharge the toner to a discharge destination. The second ends of the transport path forming members are disposed offset from each other in a horizontal direction on the side wall of the falling transport path forming member.

摘要翻译： 图像形成装置包括图像载体，调色剂图像形成单元，转印单元，清洁器，多个圆柱形输送路径形成构件，下降输送路径形成构件和排出口。 落下的输送路径形成构件在其侧壁中具有通孔。 每个传送路径形成构件的第二端插入对应的一个通孔中。 下降的输送路径形成部件形成下降的输送路径，其使得从设置在第二端的喷射口喷出的墨粉落下。 排出口设置在下落的传送路径形成构件的下部，以将调色剂排出到排放目的地。 输送路径形成构件的第二端在下降的输送路径形成构件的侧壁上沿水平方向彼此偏置设置。