公开(公告)号：US20240255890A1

公开(公告)日：2024-08-01

申请号：US18400097

申请日：2023-12-29

申请人： Yutaka GOTO ,  Seiichi KOGURE ,  Hiroshi KIKUCHI ,  Hirotaka HATTA ,  Hideki KIMURA ,  Yusuke ISHIZUKA ,  Takuya AKIYAMA ,  Yuuki AOKI

发明人： Yutaka GOTO ,  Seiichi KOGURE ,  Hiroshi KIKUCHI ,  Hirotaka HATTA ,  Hideki KIMURA ,  Yusuke ISHIZUKA ,  Takuya AKIYAMA ,  Yuuki AOKI

IPC分类号： G03G21/00 ,  G03G15/16

CPC分类号： G03G21/0047 ,  G03G15/161 ,  G03G21/0076 ,  G03G2221/001 ,  G03G2221/1627

摘要： An image forming apparatus includes a toner image bearer, a transfer device, a cleaner, a bias power source, and circuitry. The toner image bearer bears a toner image. The transfer device performs a transfer process The cleaner contacts the toner image bearer to remove transfer residual toner that is subject to the transfer process and remove untransferred toner that is not subject to the transfer process. The bias power source applies one of a first bias and a second bias different from the first bias to the cleaner. The circuitry controls the bias power source to output the first bias to the cleaner in response to a start of an image forming operation to remove the untransferred toner from the toner image bearer and control the bias power source to switch an output from the first bias to the second bias.

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.

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.

公开(公告)号：US20220107579A1

公开(公告)日：2022-04-07

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：US20210033998A1

公开(公告)日：2021-02-04

申请号：US16923410

申请日：2020-07-08

申请人： Hiroshi KIKUCHI ,  Akira FUJIMORI ,  Hideki KIMURA ,  Yutaka TAKAHASHI ,  Johji YAHAGI ,  Hiroyuki UENISHI ,  Yusuke ISHIZUKA

发明人： Hiroshi KIKUCHI ,  Akira FUJIMORI ,  Hideki KIMURA ,  Yutaka TAKAHASHI ,  Johji YAHAGI ,  Hiroyuki UENISHI ,  Yusuke ISHIZUKA

IPC分类号： G03G15/08 ,  G03G15/09

摘要： A developing device includes a developer bearer, a developer regulator, a developer supply passage, and a stopper. The developer bearer includes a magnetic field generator and is configured to bear a developer containing toner and magnetic carriers and conveys the developer to a developing area by rotation. A stopper is configured to prevent the developer blocked by the developer regulator from moving to a surface of the developer bearer, while securing a supply path for passing the developer in the developer supply passage to the developer bearer between the stopper and an upper end of a side wall of the developer supply passage that is opposite to the developing bearer. A width of the supply path in a direction perpendicular to a direction of a rotation axis of the developer bearer is in a range of 7% or more and less than 10% of a circumference of an outer diameter of the developing bearer.

公开(公告)号：US20160170329A1

公开(公告)日：2016-06-16

申请号：US14965313

申请日：2015-12-10

申请人： Hideki KIMURA ,  Tadashi OGAWA ,  Hiroyuki MABUCHI ,  Junichi TERAI ,  Hiroshi KIKUCHI ,  Yukio OTOME ,  Hiroaki OKAMOTO

发明人： Hideki KIMURA ,  Tadashi OGAWA ,  Hiroyuki MABUCHI ,  Junichi TERAI ,  Hiroshi KIKUCHI ,  Yukio OTOME ,  Hiroaki OKAMOTO

IPC分类号： G03G15/08

CPC分类号： G03G15/0898 ,  G03G15/0881 ,  G03G15/0942 ,  G03G2215/0648

摘要： A developing device includes a developer bearer, a developer regulator, a casing including an opposing face to oppose the developer bearer upstream from a developing range in a direction of rotation of the developer bearer, and first, second, and third seals. The first seal includes a first end secured to the casing and a second end to contact a latent image bearer upstream from the developing range in a direction of rotation of the latent image bearer. The second seal includes a first end secured to the opposing face of the casing, and a second end to contact the first seal upstream from the developing range. The third seal includes a first end secured to the opposing face of the casing, and a second end to contact developer on the developer bearer between the developer regulator and the developing range in the direction of rotation of the developer bearer.

摘要翻译： 显影装置包括显影剂载体，显影剂调节器，包括相对面的壳体，所述相对面与显影剂承载体的旋转方向上的显影范围上游的显影剂载体相对，以及第一，第二和第三密封件。 第一密封件包括固定到壳体的第一端和在潜像承载体的旋转方向上与显影范围上游的潜像载体接触的第二端。 第二密封件包括固定到壳体的相对面的第一端和与显影范围上游接触第一密封件的第二端。 第三密封件包括固定到壳体的相对面的第一端，以及与显影剂调节器和显影剂承载体的旋转方向上的显影范围之间的显影剂载体上的显影剂接触的第二端。

公开(公告)号：US20160202660A1

公开(公告)日：2016-07-14

申请号：US14982709

申请日：2015-12-29

申请人： Junichi TERAI ,  Tadashi OGAWA ,  Hiroyuki MABUCHI ,  Yukio OTOME ,  Hideki KIMURA ,  Hiroshi KIKUCHI ,  Hiroaki OKAMOTO

发明人： Junichi TERAI ,  Tadashi OGAWA ,  Hiroyuki MABUCHI ,  Yukio OTOME ,  Hideki KIMURA ,  Hiroshi KIKUCHI ,  Hiroaki OKAMOTO

IPC分类号： G03G15/00

CPC分类号： G03G21/10 ,  G03G21/12 ,  G03G21/1623 ,  G03G21/1647 ,  G03G21/1676 ,  G03G21/168 ,  G03G2221/1624 ,  G03G2221/1642 ,  G03G2221/1684

摘要： An image forming apparatus includes a removable unit to be removably installed in the image forming apparatus, having a unit-side opening, a connectable device having an apparatus-side opening to be connected to the unit-side opening to send developer from one of the removable unit and the connectable device to the other, a receptacle disposed below the unit-side opening and the apparatus-side opening to receive and store developer dropping from above, and a drawer unit to be retractably drawn out from the image forming apparatus. The receptacle is united with the drawer unit to be drawn out from the image forming apparatus together with the drawer unit.

摘要翻译： 图像形成装置包括可拆卸地安装在图像形成装置中的可拆卸单元，具有单元侧开口，可连接装置，具有要连接到单元侧开口的装置侧开口，以将显影剂从 可拆卸单元和可连接装置，设置在单元侧开口下方的容器和装置侧开口，用于容纳并存储从上方掉落的显影剂，以及从图像形成装置可伸缩地抽出的抽屉单元。 插座与抽屉单元结合，以便与抽屉单元一起从图像形成装置中抽出。

公开(公告)号：US20160170356A1

公开(公告)日：2016-06-16

申请号：US14969358

申请日：2015-12-15

申请人： Hiroyuki MABUCHI ,  Hiroaki OKAMOTO ,  Junichi TERAI ,  Yukio OTOME ,  Tadashi OGAWA ,  Hiroshi KIKUCHI ,  Hideki KIMURA ,  Katsuya AKIBA

发明人： Hiroyuki MABUCHI ,  Hiroaki OKAMOTO ,  Junichi TERAI ,  Yukio OTOME ,  Tadashi OGAWA ,  Hiroshi KIKUCHI ,  Hideki KIMURA ,  Katsuya AKIBA

IPC分类号： G03G15/08

CPC分类号： G03G15/55 ,  G03G15/0856 ,  G03G15/0872 ,  G03G15/0877 ,  G03G15/0879

摘要： A toner bottle driving device control method includes driving one of multiple toner bottle driving devices connected to a single toner container at a time, detecting abnormality of a toner bottle driving device being driven, determining a first abnormality phase of the toner bottle driving device being driven when a number of times the abnormality is detected exceeds a threshold, inhibiting the toner bottle driving device being in the first abnormality phase from driving until the first abnormality phase is resolved, driving a drivable toner bottle driving device containing a non-empty toner bottle when the toner bottle contained in the toner bottle driving device being driven is determined as empty, determining that the multiple toner bottle driving devices are in a second abnormality phase when each of the multiple toner bottle driving devices is determined as being in the first abnormality phase, and inhibiting image formation.

摘要翻译： 调色剂瓶驱动装置控制方法包括一次驱动连接到单个调色剂容器的多个调色剂瓶驱动装置中的一个，检测被驱动的调色剂瓶驱动装置的异常，确定被驱动的调色剂瓶驱动装置的第一异常相位 当检测到异常的次数超过阈值时，禁止处于第一异常阶段的调色剂瓶驱动装置驱动直到第一异常阶段解除，驱动包含非空调色剂瓶的可驱动调色剂瓶驱动装置，当 将被驱动的调色剂瓶驱动装置中所含的调色剂瓶确定为空，确定当多个调色剂瓶驱动装置中的每一个被确定为处于第一异常阶段时，多个调色剂瓶驱动装置处于第二异常阶段， 并抑制图像形成。

公开(公告)号：US20160202630A1

公开(公告)日：2016-07-14

申请号：US14982016

申请日：2015-12-29

申请人： Hiroaki OKAMOTO ,  Tadashi OGAWA ,  Hiroyuki MABUCHI ,  Yukio OTOME ,  Junichi TERAI ,  Hideki KIMURA ,  Hiroshi KIKUCHI

发明人： Hiroaki OKAMOTO ,  Tadashi OGAWA ,  Hiroyuki MABUCHI ,  Yukio OTOME ,  Junichi TERAI ,  Hideki KIMURA ,  Hiroshi KIKUCHI

IPC分类号： G03G15/09

CPC分类号： G03G15/0808 ,  G03G15/0806 ,  G03G2215/0648

摘要： A developing device to develop a latent image on a rotatable image bearer includes an upstream developing roller disposed opposite the image bearer at a first developing position, and a downstream developing roller disposed adjacent to and downstream from the upstream developing roller in a direction of rotation of the image bearer, disposed opposite the image bearer at a second developing position. Each of the upstream developing roller and the downstream developing roller has a most approachable surface that approaches closest to the image bearer and a most withdrawn surface that withdraws farthest from the image bearer. In a state in which a reference surface point of the image bearer is disposed opposite the most approachable surface of the upstream developing roller at the first developing position, the reference surface point opposes the most withdrawn surface of the downstream developing roller at the second developing position.

摘要翻译： 用于在可旋转图像承载体上显影潜像的显影装置包括：在第一显影位置处与图像承载体相对设置的上游显影辊和沿着上游显影辊的旋转方向邻近和下游设置的下游显影辊 该图像承载件在第二显影位置处与图像承载件相对设置。 上游显影辊和下游显影辊中的每一个具有最靠近图像载体的最接近的表面，以及从图像载体最远退出的最抽出的表面。 在图像承载体的基准表面点与第一显影位置处的上游显影辊的最接近表面相对的状态下，参考表面点与第二显影位置处的下游显影辊的最大退缩表面相对 。

公开(公告)号：US20160070208A1

公开(公告)日：2016-03-10

申请号：US14844598

申请日：2015-09-03

申请人： Hiroshi KIKUCHI ,  Tadashi OGAWA ,  Hiroyuki MABUCHI ,  Junichi TERAI ,  Hideki KIMURA ,  Yukio OTOME ,  Hiroaki OKAMOTO ,  Kazunori SUZUKI

发明人： Hiroshi KIKUCHI ,  Tadashi OGAWA ,  Hiroyuki MABUCHI ,  Junichi TERAI ,  Hideki KIMURA ,  Yukio OTOME ,  Hiroaki OKAMOTO ,  Kazunori SUZUKI

IPC分类号： G03G15/08

CPC分类号： G03G15/0891 ,  G03G15/0889 ,  G03G15/0896 ,  G03G2215/0827

摘要： A developing unit includes a developer bearer to bear developer on a surface thereof, first and second developer conveyors each having a spiral blade mounted on a rotary shaft thereof parallel to a rotary axis of the developer bearer to convey developer in opposite directions to each other. A developer drain hole is provided at a given height in a side wall of a second developer conveyance channel to face a communication opening across the second developer conveyor. The first developer conveyor rotates in a direction with its spiral blade rising between the rotary shaft of the first developer conveyor and the communication opening. Rotational phases of the first developer conveyor and the second developer conveyor are fixed and synchronized with each other to weaken momentum of developer flow generated by the first developer conveyor toward the developer drain hole via the second developer conveyor.

摘要翻译： 显影单元包括：显影剂载体，用于在其表面上承载显影剂;第一和第二显影剂输送机，每个具有安装在其旋转轴上的螺旋叶片，平行于显影剂承载件的旋转轴线，以将显影剂彼此相反的方向输送。 显影剂排出孔设置在第二显影剂输送通道的侧壁中的给定高度处，以面对穿过第二显影剂输送器的连通开口。 第一显影剂输送机沿其螺旋叶片在第一显影剂输送机的旋转轴和通信开口之间上升的方向旋转。 第一显影剂输送机和第二显影剂输送机的旋转相位彼此固定并同步，以削弱由第一显影剂输送器通过第二显影剂输送机朝显影剂排出孔产生的显影剂流的动量。