公开(公告)号：US09599926B2

公开(公告)日：2017-03-21

申请号：US14631894

申请日：2015-02-26

申请人： CANON KABUSHIKI KAISHA

发明人： Yusuke Ishida ,  Katsuya Nose ,  Kosuke Takeuchi ,  Toshihisa Yago ,  Fumiyoshi Saito ,  Naoki Mugita

IPC分类号： G03G15/09 ,  G03G15/08

CPC分类号： G03G15/0812 ,  G03G15/09 ,  G03G15/0921 ,  G03G15/0928 ,  G03G2215/0609 ,  G03G2215/0634

摘要： A developing unit includes a developing container, a developing sleeve, a developer regulating member, and a magnetic field generating portion. The magnetic field generating portion includes a drawing-up pole and a cut pole. In addition, in a peak-to-peak area, the magnetic field generating portion includes at least one of an Fr flat area in which Fr is substantially constant and an Fr attenuation area in which Fr attenuates toward the cut pole side from the drawing-up pole side, and is configured that Fθ is oriented toward the same direction as a direction of rotation of the developing sleeve in the entire peak-to-peak area.

公开(公告)号：US09488930B2

公开(公告)日：2016-11-08

申请号：US14942892

申请日：2015-11-16

申请人： KYOCERA Document Solutions Inc.

发明人： Yoshinobu Yoneima

IPC分类号： G03G15/08 ,  G03G13/09 ,  G03G15/09 ,  G03G15/06

CPC分类号： G03G15/0822 ,  G03G13/09 ,  G03G15/065 ,  G03G15/08 ,  G03G15/0806 ,  G03G15/09 ,  G03G15/0907 ,  G03G2215/0609

摘要： When rotation speed of second rotator is greater than or equal to a threshold previously determined, first control portion causes first generation portion to generate a first potential difference that enables toner in a predetermined amount to be transferred from first rotator to second rotator, and causes second generation portion to generate a second potential difference that enables the toner in the predetermined amount to be transferred from second rotator to a electrostatic latent image. When the rotation speed is less than the threshold, second control portion causes first generation portion to generate a third potential difference that enables the toner in an amount exceeding the predetermined amount to be transferred from first rotator to second rotator, and causes second generation portion to generate a fourth potential difference that enables the toner in the predetermined amount to be transferred from second rotator to the electrostatic latent image.

摘要翻译： 当第二旋转体的旋转速度大于或等于先前确定的阈值时，第一控制部分使第一生成部分产生第一电位差，使第一电位差能够使预定量的调色剂从第一旋转器传递到第二旋转器， 以产生使预定量的调色剂能够从第二旋转体传递到静电潜像的第二电位差。 当转速小于阈值时，第二控制部分使第一生成部分产生第三电位差，使得能够使超过预定量的调色剂从第一旋转器传递到第二旋转器，并使第二生成部分 产生能够使预定量的调色剂从第二旋转体传递到静电潜像的第四电位差。

公开(公告)号：US09372440B2

公开(公告)日：2016-06-21

申请号：US14287785

申请日：2014-05-27

申请人： Konica Minolta, Inc.

发明人： Tatsuya Furuta ,  Tomohiro Kawasaki ,  Kazuteru Ishizuka ,  Kazuhiro Saito

IPC分类号： G03G15/09 ,  G03G15/08

CPC分类号： G03G15/0868 ,  G03G15/0822 ,  G03G15/0849 ,  G03G15/0865 ,  G03G15/0893 ,  G03G15/09 ,  G03G2215/0607 ,  G03G2215/0609

摘要： A developing device includes: a developer container section configured to contain therein a two-component developer composed of toner and magnetic carrier; a developer bearing member configured to supply the developer to an image bearing member on which an electrostatic latent image is formed; a toner supplying section configured to supply the toner to the developer container section via the toner supply port; a carrier supplying section provided separately from the toner supplying section, the carrier supplying section being configured to supply the carrier to the developer container section via the carrier supply port; and a carrier detection section disposed at a position near the carrier supply port and at a same level as a powder surface of the developer contained in the developer container section, the carrier detection section being configured to detect carrier supplied from the carrier supplying section.

摘要翻译： 显影装置包括：显影剂容器部分，其构造成在其中容纳由调色剂和磁性载体组成的双组分显影剂; 显影剂承载部件，被构造成将显影剂供给到其上形成有静电潜像的图像承载部件; 调色剂供给部，其经由调色剂供给口将调色剂供给到显影剂容器部; 与所述调色剂供应部分开设置的载体供给部，所述载体供给部构造成经由所述载体供给口将所述载体供给到所述显影剂容器部; 以及载体检测部，其设置在所述载体供给口附近的位置处，与所述显影剂容纳部容纳的显影剂的粉末表面相同的高度，所述载体检测部被配置为检测从所述载体供给部供给的载体。

公开(公告)号：US20160147173A1

公开(公告)日：2016-05-26

申请号：US14942892

申请日：2015-11-16

申请人： KYOCERA Document Solutions Inc.

发明人： Yoshinobu Yoneima

IPC分类号： G03G15/08

CPC分类号： G03G15/0822 ,  G03G13/09 ,  G03G15/065 ,  G03G15/08 ,  G03G15/0806 ,  G03G15/09 ,  G03G15/0907 ,  G03G2215/0609

摘要： When rotation speed of second rotator is greater than or equal to a threshold previously determined, first control portion causes first generation portion to generate a first potential difference that enables toner in a predetermined amount to be transferred from first rotator to second rotator, and causes second generation portion to generate a second potential difference that enables the toner in the predetermined amount to be transferred from second rotator to a electrostatic latent image. When the rotation speed is less than the threshold, second control portion causes first generation portion to generate a third potential difference that enables the toner in an amount exceeding the predetermined amount to be transferred from first rotator to second rotator, and causes second generation portion to generate a fourth potential difference that enables the toner in the predetermined amount to be transferred from second rotator to the electrostatic latent image.

摘要翻译： 当第二旋转体的旋转速度大于或等于先前确定的阈值时，第一控制部分使第一生成部分产生第一电位差，使第一电位差能够使预定量的调色剂从第一旋转器传递到第二旋转器， 以产生使预定量的调色剂能够从第二旋转体传递到静电潜像的第二电位差。 当转速小于阈值时，第二控制部分使第一生成部分产生第三电位差，使得能够使超过预定量的调色剂从第一旋转器传递到第二旋转器，并使第二生成部分 产生能够使预定量的调色剂从第二旋转体传递到静电潜像的第四电位差。

公开(公告)号：US09223245B2

公开(公告)日：2015-12-29

申请号：US13667726

申请日：2012-11-02

申请人： Mitsuru Oikawa ,  Sang-don Lee ,  Jong-pil Jun

发明人： Mitsuru Oikawa ,  Sang-don Lee ,  Jong-pil Jun

IPC分类号： G03G15/00 ,  G03G15/08 ,  G03G15/09

CPC分类号： G03G15/0812 ,  G03G15/09 ,  G03G2215/0609

摘要： A developing device to supply toner in a developer, including a development member which receives the developer on an outer circumferential surface thereof and supplies the toner to the image bearing member, a first regulation member including a first regulating portion that forms a first doctor gap between the outer circumferential surface of the development member and the first regulating portion, and a second regulation member disposed on an upstream side of the first regulation member in a rotational direction of the development member and includes a second regulating portion that forms a second doctor gap between the outer circumferential surface of the development member and the second regulating portion, the second doctor gaps at a central portion and both end portions in a longitudinal direction of the development member being different from each other.

摘要翻译： 一种用于在显影剂中供应调色剂的显影装置，包括显影部件，该显影部件在其外圆周表面上容纳显影剂，并将调色剂供应到图像承载部件;第一调节部件，包括第一调节部分， 显影元件的外圆周表面和第一调节部分，以及设置在显影元件的旋转方向上的第一调节元件的上游侧的第二调节元件，并且包括第二调节部分， 显影元件的外圆周表面和第二调节部分，中央部分的第二刮刀间隙和显影元件的纵向方向上的两个端部彼此不同。

公开(公告)号：US20150037074A1

公开(公告)日：2015-02-05

申请号：US14182518

申请日：2014-02-18

申请人： Samsung Electronics Co., Ltd.

发明人： Ho-young LEE ,  Mitsuru Oikawa ,  Jong-hyun Park ,  Sang-hoon Lee ,  Jun-hee Lee

IPC分类号： G03G15/09

CPC分类号： G03G15/0812 ,  G03G15/081 ,  G03G15/0921 ,  G03G2215/0609

摘要： A developing unit employing a two-component developing agent is shown. The developing unit includes a first regulating member, a second regulating member, and a third regulating member forming first, second, and third regulating gaps respectively with a developing roller. The third regulating member forms a recovery path for recovering excessive developing agent that may not pass through the first and second regulating gaps to an agitating region between the third and second regulating members. A distance between a vertical line passing through an upstream side end portion of the second regulating member based on a rotating direction of the developing roller and a center of the developing roller is greater than a radius of the developing roller, and a downstream end of the third regulating member is located between a regulating pole and a catch pole.

摘要翻译： 示出了采用双组分显影剂的显影单元。 显影单元包括第一调节构件，第二调节构件和第三调节构件，分别与显影辊形成第一，第二和第三调节间隙。 第三调节构件形成用于回收可能不通过第一调节间隙和第二调节间隙的过量显影剂到第三调节构件和第二调节构件之间的搅拌区域的回收路径。 基于显影辊的旋转方向穿过第二调节构件的上游侧端部的垂直线与显影辊的中心之间的距离大于显影辊的半径，并且下游端 第三调节构件位于调节杆和捕捉杆之间。

公开(公告)号：US08571449B2

公开(公告)日：2013-10-29

申请号：US12700834

申请日：2010-02-05

申请人： Yasuo Miyoshi ,  Norio Kudo ,  Yoshihiro Fujiwara ,  Tsukuru Kai ,  Hiroshi Hosokawa ,  Hiroaki Okamoto

发明人： Yasuo Miyoshi ,  Norio Kudo ,  Yoshihiro Fujiwara ,  Tsukuru Kai ,  Hiroshi Hosokawa ,  Hiroaki Okamoto

IPC分类号： G03G15/09

CPC分类号： G03G15/0887 ,  G03G15/0898 ,  G03G15/0921 ,  G03G2215/0609

摘要： A development device includes a developer containing part containing two-component developer, a cylindrical developer carrier to carry by rotation the developer to a development range, a first developer transport member disposed in the developer containing part, to supply the developer to the developer carrier while transporting the developer in an axial direction of the developer carrier, and a magnetic field generator disposed inside the developer carrier, having three developer-carrying magnetic poles, consisting of a development pole to generate a first magnetic field in the development range, a pre-development pole to generate a second magnetic field to transport the developer supplied from the developer containing part to the development range, and a post-development pole to generate a third magnetic field disposed between the first magnetic field and the second magnetic field, to transport the developer to a release position where the developer is separated from the developer carrier.

摘要翻译： 显影装置包括含有双组分显影剂的显影剂含有部分，通过将显影剂旋转到显影范围来承载的圆柱形显影剂载体，设置在显影剂容纳部分中的第一显影剂传送构件，以将显影剂供应到显影剂载体，同时 在显影剂载体的轴向方向上运送显影剂，以及设置在显影剂载体内的磁场发生器，具有由显影极组成的三个显影剂携带磁极，以在显影范围内产生第一磁场; 显影极，以产生第二磁场，以将从显影剂容纳部供应的显影剂输送到显影范围;以及后显影极，以产生设置在第一磁场和第二磁场之间的第三磁场，以输送 开发商到开发人员与开发人员分开的释放位置 特里尔

公开(公告)号：US20130243460A1

公开(公告)日：2013-09-19

申请号：US13607171

申请日：2012-09-07

申请人： Shinya MAKIURA ,  Masao OHKUBO ,  Yasunori UNAGIDA

发明人： Shinya MAKIURA ,  Masao OHKUBO ,  Yasunori UNAGIDA

IPC分类号： G03G15/02

CPC分类号： G03G15/0907 ,  G03G15/0266 ,  G03G15/553 ,  G03G2215/0607 ,  G03G2215/0609

摘要： An image forming apparatus includes an application unit that applies to a holding unit a voltage that generates a potential difference between the holding unit and a photoconductor member such that a toner image is developed on the photoconductor member, the potential difference causing toner included in a two-component developer, held by the holding unit, to transfer from the holding unit to the photoconductor member, and a controller that controls the application unit, subsequent to an expiration of an image quality assurance period throughout which a predetermined image quality is assured, such that the potential of the holding unit is decreased in step with wear of the photoconductor member.

摘要翻译： 图像形成装置包括：施加单元，其向保持单元施加产生保持单元和感光体构件之间的电位差的电压，使得在感光体构件上形成调色剂图像，使得包含在二极管中的调色剂的电位差 - 由保持单元保持的组件显影器从保持单元转移到感光体构件，以及控制器，其控制应用单元，在保证预定图像质量的图像质量保证期间到期之后， 保持单元的电位随着感光体构件的磨损而逐渐减小。

公开(公告)号：US08515320B2

公开(公告)日：2013-08-20

申请号：US12967408

申请日：2010-12-14

申请人： Hideto Sakurai

发明人： Hideto Sakurai

IPC分类号： G03G15/09

CPC分类号： G03G15/0921 ,  G03G15/0935 ,  G03G2215/0609

摘要： Provided is a developing device for developing an electrostatic latent image on an image carrier, the developing device comprising: a housing having an opening; a developing sleeve facing the image carrier through the opening; a magnet roller encased in the developing sleeve and having magnetic poles including (i) a first magnetic pole having a strongest magnetic force of all the magnetic poles and (ii) a second magnetic pole having a magnetic force equal to or larger than a predetermined value and being different from the first magnetic pole; and a positioning member operable to allow the magnet roller to rotate together with the developing sleeve when the magnet roller is in a first rotational position where the first or the second magnetic pole faces an edge of the opening located downstream in a transfer direction of a two-component developer, and to inhibit the rotation of the magnet roller when the magnet roller is in a second rotational position where the first magnetic pole is closest to the image carrier.

摘要翻译： 提供一种用于在图像载体上显影静电潜像的显影装置，该显影装置包括：具有开口的壳体; 通过开口面向图像载体的显影套筒; 一个包裹在显影套筒中并具有磁极的磁辊，包括（i）具有所有磁极的最强磁力的第一磁极和（ii）具有等于或大于预定值的磁力的第二磁极 并且与第一磁极不同; 以及定位构件，其可操作以允许所述磁性辊与所述显影套筒一起旋转，当所述磁性辊处于第一旋转位置时，所述第一或第二磁极面向位于两个 并且当磁辊处于第一磁极最靠近图像载体的第二旋转位置时，抑制磁辊的旋转。

公开(公告)号：US08331833B2

公开(公告)日：2012-12-11

申请号：US12906023

申请日：2010-10-15

申请人： Hiroshi Akita ,  Tatsuya Furuta

发明人： Hiroshi Akita ,  Tatsuya Furuta

IPC分类号： G03G15/09

CPC分类号： G03G15/0907 ,  G03G2215/0609

摘要： Disclosed is an image forming apparatus, which makes it possible to remove the resistance reduced carriers included in the developer without abandoning normal carriers whose resistances have not reduced, even in mid-course of implementing the image forming operation. The image forming apparatus includes: a carrier adhering roller to make at least a part of carriers, included in the developer, shift and adhere onto a carrier adhering roller in response to an electric field generated between the developer conveyance member and the carrier adhering roller, a recollection roller, rotatably disposed in such a manner that the recollection roller and the carrier adhering roller oppose to each other with a gap between them, to attract carriers, currently adhered onto the carrier adhering roller, onto a circumferential surface of the recollection roller; and a scraping member, contacting the recollection roller, to scrape the adhered carriers off the circumferential surface of the recollection roller.

摘要翻译： 公开了一种图像形成装置，即使在实施图像形成操作的中途，也可以除去包含在显影器中的电阻降低的载流子，而不会放弃其电阻没有减小的正常载流子。 图像形成装置包括：载体粘合辊，用于使包含在显影剂中的载体的至少一部分响应于在显影剂传送构件和载体粘附辊之间产生的电场而移动并附着到载体粘附辊上， 回收辊，其可旋转地设置成使得回收辊和载体粘合辊在它们之间具有间隙彼此相对，以将目前粘附到载体粘附辊上的载体吸引到回收辊的圆周表面上; 以及刮擦构件，其与回收辊接触，以将粘附的载体从回收辊的圆周表面上刮除。