公开(公告)号：US5548382A

公开(公告)日：1996-08-20

申请号：US355983

申请日：1994-12-14

申请人： Makoto Koshi ,  Yukio Nishio ,  Kazunori Hirose

发明人： Makoto Koshi ,  Yukio Nishio ,  Kazunori Hirose

IPC分类号： G03G15/08

CPC分类号： G03G15/0812 ,  G03G15/0818 ,  G03G15/0898

摘要： A developing device using a one-component developer composed of toner particles, which includes a vessel for holding the developer, and a developing roller rotatably provided within the vessel so that a portion of the roller is exposed therefrom and faces a surface of an electrostatic latent image carrying body to form a developing area. During rotation of the roller, the toner particles are entrained by a surface of the roller to form a developer layer therearound, and are carried to the developing area for a development of an electrostatic latent image formed on the latent image carrying body. The roller and the latent image carrying body are reversely rotated such that the surfaces thereof move upward at the developing area. A blade member is provided within the vessel and is resiliently engaged with the roller for regulating a thickness of the developer layer, and is disposed below the roller to prevent a leakage of the toner particles from the vessel at an underside of the developing roller. The roller has an open-cell foam structure such that pore openings or porous cells thereof have a diameter which is at most twice the average diameter of the toner particles. The roller preferably has an Asker C-hardness of at most 50.degree..

摘要翻译： 使用包括用于保持显影剂的容器的由调色剂颗粒组成的单组分显影剂的显影装置和可旋转地设置在容器内的显影辊，使得辊的一部分从其暴露并面对静电潜在的表面 图像携带体形成发展中的区域。 在辊的旋转期间，调色剂颗粒被辊的表面夹带以在其周围形成显影剂层，并且被携带到显影区域以显影形成在潜像载体上的静电潜像。 辊和潜影携带体反转，使得其表面在显影区域向上移动。 叶片构件设置在容器内并且与辊弹性地接合以调节显影剂层的厚度，并且设置在辊的下方，以防止调色剂颗粒在显影辊的下侧从容器泄漏。 辊具有开孔泡沫结构，使得其开孔或多孔孔的直径为调色剂颗粒的平均直径的至多两倍。 辊优选具有至多50°的Asker C-硬度。

公开(公告)号：US5164773A

公开(公告)日：1992-11-17

申请号：US540728

申请日：1990-06-20

申请人： Yukio Nishio ,  Hiroshi Kera ,  Yoshihiro Tonomoto ,  Kazunori Hirose

发明人： Yukio Nishio ,  Hiroshi Kera ,  Yoshihiro Tonomoto ,  Kazunori Hirose

IPC分类号： G03G15/06 ,  G03G15/08

CPC分类号： G03G15/065 ,  G03G15/0806 ,  G03G15/0812 ,  G03G2215/0614 ,  G03G2215/0636

摘要： A developing device using a one-component developer composed of toner particles includes a developing roller rotatably provided within the vessel, a portion of the developing roller being exposed therefrom and resiliently pressed against a surface of a photosensitive drum. The toner particles are entrained by the roller surface to form a developer layer therearound and are carried to the drum surface for the development of an electrostatic latent image formed thereon, and a blade member is engaged with the roller for regulating a thickness of the developer layer. A voltage is supplied to the roller to electrostatically move the toner particles from the roller to the latent image, and a voltage is applied to the blade member to inject an electrical charge to the developer layer. When an operation of the device is started, a supply of the voltages to the roller and blade member is carried out after the roller is rotated. When the operation is interrupted or stopped, the supply of the voltage to the blade member is prematurely stopped before the supply of the voltage to the roller and the rotation thereof are stopped.

公开(公告)号：US5057871A

公开(公告)日：1991-10-15

申请号：US493260

申请日：1990-03-14

申请人： Kazunori Hirose ,  Yukio Nishio

发明人： Kazunori Hirose ,  Yukio Nishio

IPC分类号： G03G15/08

CPC分类号： G03G15/0815 ,  G03G2215/0617 ,  G03G2215/0636

摘要： A developing device using a one-component developer composed of colored fine synthetic resin toner particles, which device includes a vessel for holding the developer, and a developing roller rotatably provided within the vessel, a portion of the roller being exposed and resiliently pressed against a surface of an electrostatic latent image formation drum. The toner particles are held by the surface of the developing roller to form a developer layer around the surface, and are carried to the surface of the image formation drum for development of an electrostatic latent image formed on the drum surface. The developing device further includes a toner-removing roller rotatably provided within the vessel to be in contact with the developing roller for mechanically removing the remaining toner particles not used for the development of the image from the developing roller, and a blade or roller member provided within the vessel and resiliently engaged with the developing roller, for regulating a thickness of the developer layer formed around the developing roller. The toner-removing roller is formed of a conductive porous rubber material so that pore openings appear over a surface of the toner-removing roller, the pore openings having a diameter which is at most twice an average diameter of the toner particles, whereby a penetration of the toner particles into the toner-removing roller is prevented.

摘要翻译： 使用由有色合成树脂调色剂颗粒构成的单组分显影剂的显影装置，该装置包括用于保持显影剂的容器和可旋转地设置在容器内的显影辊，该辊的一部分被暴露并弹性压靠 静电潜像形成鼓的表面。 调色剂颗粒被显影辊的表面保持以在表面周围形成显影剂层，并且被携带到图像形成鼓的表面，用于显影形成在鼓表面上的静电潜像。 显影装置还包括一个调色剂去除辊，可旋转地设置在容器内以与显影辊接触，用于机械地从显影辊中除去未用于显影图像的剩余调色剂颗粒，以及提供的刮板或辊构件 在容器内并与显影辊弹性接合，用于调节在显影辊周围形成的显影剂层的厚度。 调色剂去除辊由导电多孔橡胶材料形成，使得孔隙出现在调色剂去除辊的表面上，孔孔的直径是调色剂颗粒的平均直径的至多两倍， 的调色剂颗粒被阻止到调色剂去除辊中。

公开(公告)号：US5412458A

公开(公告)日：1995-05-02

申请号：US983863

申请日：1993-03-05

申请人： Hideki Kamaji ,  Masae Ikeda ,  Kazunori Hirose ,  Yukio Nishio

发明人： Hideki Kamaji ,  Masae Ikeda ,  Kazunori Hirose ,  Yukio Nishio

IPC分类号： G03G15/08

CPC分类号： G03G15/0818 ,  G03G15/0812

摘要： A developing apparatus provided with a developer holding container (16a) which holds a mono-component developer and an electroconductive elastic development roller (16b ) which is provided inside the developer holding container in a manner enabling it to be driven to rotate. The electroconductive elastic development roller is disposed so that a portion of it is exposed from the developer holding container and contacts the image carrier. The mono-component developer is made to deposit on its rotating surface and form a mono-component developer layer. By the rotation of this, the developer is transferred to the region of contact with the image carrier. The developing apparatus includes an electroconductive leaf spring member (16c) for regulating the thickness of the mono-component developer layer of the electroconductive elastic development roller. This electroconductive leaf spring member is supported integrally at one end by a rotatable rigid support member (16d) and is made to elastically press against and contact the electroconductive elastic development roller for regulating the thickness of the mono-component developer layer of the electroconductive elastic development roller at the other end. The center of rotation of the rigid support member is substantially positioned on the tangent of the electroconductive leaf spring member and the electroconductive elastic development roller.

摘要翻译： PCT No.PCT / JP92 / 00858 Sec。 371日期1993年3月5日 102（e）1993年3月5日PCT PCT 1992年7月6日PCT公布。 公开号WO93 / 01530 日本1993年1月21日。一种显影装置，其具有保持单组分显影剂和导电性弹性显影辊（16b）的显影剂保持容器（16a），该显影剂保持容器设置在显影剂保持容器内部，使其能够 驱动旋转。 导电弹性显影辊设置成使其一部分从显影剂保持容器露出并与图像载体接触。 使单组分显影剂沉积在其旋转表面上并形成单组分显影剂层。 通过旋转，显影剂转移到与图像载体接触的区域。 显影装置包括用于调节导电弹性显影辊的单组分显影剂层的厚度的导电片弹簧部件（16c）。 该导电片弹簧构件通过可旋转的刚性支撑构件（16d）在一端一体地支撑，并且被制造成弹性地压靠和接触导电弹性显影辊，用于调节导电弹性显影剂的单组分显影剂层的厚度 在另一端滚动。 刚性支撑构件的旋转中心基本上位于导电板簧构件和导电弹性显影辊的切线上。

公开(公告)号：US5068691A

公开(公告)日：1991-11-26

申请号：US530518

申请日：1990-05-30

申请人： Yukio Nishio ,  Kazunori Hirose

发明人： Yukio Nishio ,  Kazunori Hirose

IPC分类号： G03G15/08

CPC分类号： G03G15/0896 ,  G03G15/0806 ,  G03G15/0812 ,  G03G15/0817 ,  G03G15/0855 ,  G03G15/0856 ,  G03G15/0889 ,  G03G2215/0617 ,  G03G2215/0636

摘要： The present invention is directed to a developing device using a one-component developer composed of colored fine sythetic resin toner particles. The device includes a vessel for holding the developer and a developing roller rotatably provided within the vessel, a portion thereof being exposed therefrom and resiliently pressed against a surface of an photosensitive drum. The toner particles are held by the surface of the developing roller to form a developer layer therearound, and are carried to the surface of the image formation drum for development of an electrostatic latent image formed thereon. The developing device further incorporates a blade member provided within the vessel and resiliently engaged with the developing roller for regulating a thickness of the developer layer formed therearound. The pressures exerted on the developing roller by the phososensitive drum and the blade member, respectively, can be at least partially released.

摘要翻译： 本发明涉及使用由有色精细合成树脂调色剂颗粒组成的单组分显影剂的显影装置。 该装置包括用于保持显影剂的容器和可旋转地设置在容器内的显影辊，其一部分从其暴露并弹性压靠感光鼓的表面。 调色剂颗粒被显影辊的表面保持以在其周围形成显影剂层，并且被携带到图像形成鼓的表面，用于显影形成在其上的静电潜像。 显影装置还包括设置在容器内并与显影辊弹性接合的刮板构件，用于调节其周围形成的显影剂层的厚度。 通过感光鼓和刀片构件分别施加在显影辊上的压力可以至少部分地释放。

公开(公告)号：US5220129A

公开(公告)日：1993-06-15

申请号：US785403

申请日：1991-10-30

申请人： Yukio Nishio ,  Kazunori Hirose

发明人： Yukio Nishio ,  Kazunori Hirose

IPC分类号： G03G15/08

CPC分类号： G03G15/0812 ,  G03G2215/0614 ,  G03G2215/0636

摘要： A developing device using a one-component developer composed of colored fine synthetic resin toner particles, which device comprises a vessel for holding the developer, and a developing roller rotatably provided within the vessel, a portion thereof being exposed therefrom and resiliently pressed against a surface of a photosensitive drum. The toner particles are held by the surface of the developing roller to form a developer layer therearound, and are carried to the surface of the image formation drum for development of an electrostatic latent image formed thereon. The developing device further comprises a blade member provided within the vessel and resiliently engaged with the developing roller for regulating a thickness of the developer layer formed therearound. The blade member is constituted such that a proper regulation of the developer layer can be always ensured.

摘要翻译： 一种使用由有色合成树脂调色剂颗粒组成的单组分显影剂的显影装置，该装置包括用于保持显影剂的容器，以及可旋转地设置在容器内的显影辊，其一部分从其暴露并弹性地压靠表面 感光鼓。 调色剂颗粒被显影辊的表面保持以在其周围形成显影剂层，并且被携带到图像形成鼓的表面，用于显影形成在其上的静电潜像。 显影装置还包括设置在容器内并与显影辊弹性接合的刮板构件，用于调节其周围形成的显影剂层的厚度。 叶片构件构成为能够始终确保显影剂层的适当调节。

公开(公告)号：US5076201A

公开(公告)日：1991-12-31

申请号：US493536

申请日：1990-03-14

申请人： Yukio Nishio ,  Kazunori Hirose ,  Yasuhiro Tukui

发明人： Yukio Nishio ,  Kazunori Hirose ,  Yasuhiro Tukui

IPC分类号： G03G15/08

CPC分类号： G03G15/0818 ,  B29C44/507 ,  B29C44/56 ,  B29K2105/045 ,  B29L2031/326 ,  G03G2215/0617 ,  G03G2215/0636

摘要： A developing device using a one-component developer composed of colored fine sythetic resin toner particles, which device comprises a vessel for holding the developer, and a developing roller rotatably provided within the vessel in such a manner that a portion of the roller is exposed therefrom and resiliently pressed against a surface of an electrostatic latent image formation drum. The roller is formed of a conductive porous rubber material so that pore openings appear over a surface of the roller, and the pore openings have a diameter which is at most twice an average diameter of the toner particles, whereby during rotation of the roller, the toner particles are captured and held by the pore openings of the roller to form a developer layer therearound and are carried to the surface of the drum. The developing device further comprises a blade or roller member provided within the vessel and resiliently engaged with the developing roller, for regulating a thickness of the developer layer formed around the developing roller.

公开(公告)号：US06175710B1

公开(公告)日：2001-01-16

申请号：US08178439

申请日：1994-01-06

申请人： Hideki Kamaji ,  Masae Ikeda ,  Kazunori Hirose ,  Hiroshi Nou ,  Masahiro Wanou ,  Teturou Nakashima ,  Masatoshi Kimura ,  Yukio Nishio

发明人： Hideki Kamaji ,  Masae Ikeda ,  Kazunori Hirose ,  Hiroshi Nou ,  Masahiro Wanou ,  Teturou Nakashima ,  Masatoshi Kimura ,  Yukio Nishio

IPC分类号： G03G1508

CPC分类号： G03G15/0812 ,  G03G15/0806 ,  G03G15/167 ,  G03G2215/0604

摘要： An electrophotographic recording apparatus includes a photosensitive drum on which an electrostatic latent image can be written, a developing device for developing the latent image of a charged visible image with a one-component developer, and a transferring device for electrostatically transferring the charged visible image from the drum to a sheet or paper. The developing device has a conductive foam rubber roller for entraining the developer to form a developer layer therearound and for bringing the layer to the drum for the development of the latent image, a conductive blade resiliently engaged with the foam rubber roller for uniformly regulating a thickness of the developer, and an electric source for applying electric energy to the blade to electrically charge the developer layer by a charge-injection effect. The transferring device has a conductive foam rubber transfer roller in contact with the drum, and an electric source for applying energy to the transfer roller to give a paper an electric charge having a polarity opposite to that of the charged visible image during a passage of a recording medium through a nip between the drum and the transfer roller.

摘要翻译： 一种电子照相记录装置，包括可以在其上书写静电潜像的感光鼓，用单组分显影剂显影带电可见图像的潜像的显影装置，以及用于将带电可见图像静电转印的转印装置 鼓到一张纸或一张纸。 显影装置具有用于夹带显影剂以形成显影剂层的导电泡沫橡胶辊，并且用于将该层带到滚筒上用于显影潜像;导电刮片与泡沫橡胶辊弹性接合以均匀地调节厚度 的显影剂，以及用于向刀片施加电能以通过电荷注入效应对显影剂层进行电荷的电源。 转印装置具有与滚筒接触的导电泡沫橡胶转印辊，以及用于向转印辊施加能量的电源，以在纸张通过期间向纸张提供具有与带电的可见图像的极性相反的极性的电荷 通过滚筒和转印辊之间的辊隙记录介质。

公开(公告)号：US5232500A

公开(公告)日：1993-08-03

申请号：US933910

申请日：1992-08-27

申请人： Hideki Kamaji ,  Kazunori Hirose ,  Masae Ikeda ,  Teturou Nakashima ,  Yukio Nishio

发明人： Hideki Kamaji ,  Kazunori Hirose ,  Masae Ikeda ,  Teturou Nakashima ,  Yukio Nishio

IPC分类号： G03G15/08

CPC分类号： G03G15/0812

摘要： A one-component developing apparatus includes a developing roller which holds a one-component developer and feeds the developer to a photosensitive drum, and a developer layer thickness regulating blade. The regulating blade has an edge which is parallel with a surface of the developing roller and the edge regulates the thickness of the developer layer on the drum. The edge is constructed by being machined along a direction in parallel with the surface of the developer roller. The edge of the regulating blade may be either sharp or rounded.

摘要翻译： 单组分显影装置包括保持单组分显影剂并将显影剂供给感光鼓的显影辊和显影剂层厚度调节刮板。 调节叶片具有与显影辊的表面平行的边缘，边缘调节滚筒上的显影剂层的厚度。 边缘沿着与显影辊的表面平行的方向加工而构成。 调节叶片的边缘可以是锋利的或圆形的。

公开(公告)号：US5097294A

公开(公告)日：1992-03-17

申请号：US494352

申请日：1990-03-16

申请人： Yukio Nishio ,  Kazunori Hirose

发明人： Yukio Nishio ,  Kazunori Hirose

IPC分类号： G03G15/08

CPC分类号： G03G15/0812 ,  G03G2215/0614 ,  G03G2215/0636

摘要： A developing device using a one-component developer which includes colored fine synthetic resin toner particles. The device includes a vessel for holding the developer, and a developing roller rotatably provided within the vessel. A portion of the device is exposed therefrom and is resiliently pressed against a surface of a photosensitive drum. The toner particles are held by the surface of the developing roller to form a developer layer therearound, and are carried to the surface of the image formation drum for development of an electrostatic latent image formed thereon. The developing device further includes a blade member provided within the vessel and is resiliently engaged with the developing roller for regulating a thickness of the developer layer formed therearound. The blade member is such that a proper regulation of the developer layer can always be ensured. The blade member is pivotally provided within the vessel so as to be resiliently and tangentially engaged with the developing roller for regulating the thickness of the developer layer on the developing roller.