DEVELOPMENT APPARATUS AND AN IMAGE FORMATION APPARATUS
    21.
    发明申请
    DEVELOPMENT APPARATUS AND AN IMAGE FORMATION APPARATUS 审中-公开
    开发设备和图像形成设备

    公开(公告)号:US20080089723A1

    公开(公告)日:2008-04-17

    申请号:US11868735

    申请日:2007-10-08

    IPC分类号: G03G15/08

    CPC分类号: G03G15/0803 G03G2215/0621

    摘要: An image formation apparatus using a hopping method is disclosed. Toner provided on a moving surface of a toner supporting object is conveyed, while the toner is hopping on the surface due to an electric field, to a position that counters a latent image supporting object by movement of the surface, and is adhered to a latent image formed on the latent image supporting object. The image formation apparatus includes a supply member for scooping up the toner in a toner container by plural hollows formed on a surface of the supply member with endless movement of the surface of the supply member, for conveying the toner to a position where the supply member contacts the toner supporting object, and for providing the toner to the surface of the toner supporting object.

    摘要翻译: 公开了一种使用跳频方法的图像形成装置。 当调色剂由于电场而在表面上跳跃时,提供在调色剂支撑物体的移动表面上的调色剂被传送到通过表面移动对着潜像支撑物体的位置,并粘附到潜在的 形成在潜像支撑物上的图像。 图像形成装置包括:供给部件,用于在供给部件的表面上形成有多个形成在供给部件的表面上的多个中空部,从而将调色剂输送到供给部件的位置, 接触调色剂支撑物体,并将调色剂提供到调色剂支撑物体的表面。

    Developing device, process cartridge, and image forming apparatus
    23.
    发明授权
    Developing device, process cartridge, and image forming apparatus 有权
    显影装置,处理盒和成像装置

    公开(公告)号:US08041268B2

    公开(公告)日:2011-10-18

    申请号:US12170930

    申请日:2008-07-10

    IPC分类号: G03G15/08

    摘要: A developing device comprises a latent image carrier that carries a latent image, a toner carrier opposing the latent image carrier while carrying toner to develop the latent image, and plural electrodes arranged in a prescribed direction insulated from each other on the surface of the toner carrier to create an electric field therebetween. An alternating voltage supplying device is provided to supply n number of phases (n ≧2) of an alternating voltage to the plural electrodes, respectively. The alternating voltage changes the electric field to cause the toner to hop and form toner cloud on the surface of the toner carrier. The toner hopping is halted at a prescribed time period during the toner cloud formation.

    摘要翻译: 显影装置包括携带潜像的潜像载体,与潜像载体相对的调色剂载体,同时承载调色剂以显影潜像;以及在调色剂承载体的表面上彼此绝缘的规定方向排列的多个电极 以在它们之间产生电场。 提供交流电压供给装置,以分别向多个电极提供交流电压的n个相位(n≥2)。 交变电压改变电场以使调色剂在调色剂载体的表面上跳跃并形成调色剂云。 在调色剂云形成期间,在规定的时间段停止调色剂跳跃。

    Development device, process cartridge incorporating same, and image forming apparatus incorporating same
    27.
    发明授权
    Development device, process cartridge incorporating same, and image forming apparatus incorporating same 有权
    显影装置,结合其的处理盒,以及包含其的图像形成装置

    公开(公告)号:US08824935B2

    公开(公告)日:2014-09-02

    申请号:US13225905

    申请日:2011-09-06

    IPC分类号: G03G15/08

    摘要: A development device includes a developer container; a rotary cylindrical developer carrier including an outer electrode including multiple electrode portions arranged in a circumferential direction of the developer carrier, an inner electrode provided on an inner circumferential side of the developer carrier from the outer electrode, an insulation layer disposed between the outer electrode and the inner electrode, and a surface layer; and a bias power source to apply a first bias voltage and a second bias voltage to the inner electrode and the outer electrode, respectively. The first bias power source causes an electrical potential difference that changes with time between the inner electrode and the outer electrode to cause the developer to hop on a circumferential surface of the developer carrier. At least one of the first bias voltage and the second bias voltage has a cyclic waveform in which pulse-on time is reduced.

    摘要翻译: 显影装置包括显影剂容器; 包括外电极的旋转圆柱形显影剂载体,所述外电极包括沿所述显影剂载体的圆周方向布置的多个电极部分,从所述外电极设置在所述显影剂载体的内周侧上的内电极,设置在所述外电极与所述外电极之间的绝缘层, 内部电极和表面层; 以及分别向内电极和外电极施加第一偏置电压和第二偏置电压的偏置电源。 第一偏置电源引起在内部电极和外部电极之间随时间变化的电位差,以使显影剂在显影剂载体的圆周表面上跳跃。 第一偏置电压和第二偏置电压中的至少一个具有脉冲开启时间减少的循环波形。

    Development device, process cartridge incorporating same, and image forming apparatus incorporating same
    28.
    发明授权
    Development device, process cartridge incorporating same, and image forming apparatus incorporating same 失效
    显影装置,结合其的处理盒,以及包含其的图像形成装置

    公开(公告)号:US08588635B2

    公开(公告)日:2013-11-19

    申请号:US12980951

    申请日:2010-12-29

    IPC分类号: G03G15/02

    摘要: A development device includes a developer container, a rotary developer carrier that is disposed facing the latent image carrier and including multiple outer electrodes arranged in a circumferential direction of the developer carrier, an inner electrode electrically insulated from the multiple outer electrodes, an insulation layer disposed between the inner and outer electrodes, and a surface layer overlaying the outer electrodes and electrically insulating the multiple outer electrodes from each other, a bias power source to generate electrical fields that change with time by applying a first and second bias voltages to the inner and outer electrodes, respectively, an electrical field adjuster to regulate the electrical fields in accordance with a thickness of the surface layer of the developer carrier, and a controller.

    摘要翻译: 显影装置包括显影剂容器,与潜像载体相对设置的旋转显影剂载体,包括沿着显影剂载体的圆周方向布置的多个外部电极,与多个外部电极电绝缘的内部电极,设置有绝缘层 在内电极和外电极之间,以及覆盖外电极并使多个外电极彼此电绝缘的表面层,偏压电源,以产生电场,其随时间而变化,通过施加第一和第二偏置电压到内和 外部电极分别是电场调节器,以根据显影剂载体的表面层的厚度来调节电场,以及控制器。

    Image forming apparatus
    29.
    发明授权
    Image forming apparatus 有权
    图像形成装置

    公开(公告)号:US08948638B2

    公开(公告)日:2015-02-03

    申请号:US13215700

    申请日:2011-08-23

    摘要: An image forming apparatus includes a latent image carrier; a latent image writer to write a latent image on the latent image carrier; a developing unit including a toner carrier having first and second electrodes insulated via an insulator member and a voltage applying unit to apply voltages to the first and second electrodes having a potential difference to generate first electric fields to cause the toner to hop from the toner carrier to the latent image carrier to develop a toner image; and a transfer unit to transfer the developed toner image to a transferring member. When alternating voltages having a same phase and same amplitude are applied to the first and second electrodes to form second electric fields between the latent image carrier and the toner carrier, the toner is discharged from the toner carrier to the latent image carrier in a toner discharge mode.

    摘要翻译: 图像形成装置包括潜像载体; 潜像写入器,用于在潜像载体上写入潜像; 显影单元,包括具有通过绝缘体构件绝缘的第一和第二电极的调色剂载体和施加电压的电压施加到具有电位差的第一和第二电极,以产生第一电场,以使调色剂从调色剂载体 到潜像载体以形成调色剂图像; 以及将显影的调色剂图像转印到转印部件的转印单元。 当具有相同相位和相同振幅的交变电压施加到第一和第二电极以在潜像载体和调色剂载体之间形成第二电场时,调色剂在调色剂排出物中从调色剂载体排出到潜像载体 模式。

    Developing device, image forming apparatus, and image forming method
    30.
    发明授权
    Developing device, image forming apparatus, and image forming method 有权
    显影装置,成像装置和图像形成方法

    公开(公告)号:US08897681B2

    公开(公告)日:2014-11-25

    申请号:US13222344

    申请日:2011-08-31

    IPC分类号: G03G15/08 G03G15/06

    CPC分类号: G03G15/0818 G03G2215/0651

    摘要: An image forming apparatus includes a latent image carrier to carry a latent image, a developing device having a toner carrier with first and second electrodes to develop the latent image by transferring the toner to a developing region between the toner carrier and the latent image carrier while causing the toner to hop between the first and second electrodes and attaching the hopping toner to the latent image, a pulsed power supply to output a first periodic pulse voltage having a mean potential the same as a normal toner charge and a second periodic pulse voltage, a smoothing circuit to make the first periodic pulse voltage smooth to generate a direct voltage, and a toner layer thickness regulator member to regulate, on receiving the direct voltage, a thickness of the toner layer in a region between a toner supply position at which toner is supplied and the developing region.

    摘要翻译: 图像形成装置包括:潜像载体,用于承载潜像;显影装置,具有带有第一和第二电极的调色剂载体,以通过将调色剂转印到调色剂载体和潜像载体之间的显影区域来显影潜像,同时 使调色剂在第一和第二电极之间跳跃并将跳跃调色剂附着到潜像上,脉冲电源输出具有与正常调色剂电荷和第二周期性脉冲电压相同的平均电位的第一周期性脉冲电压, 使第一周期性脉冲电压平滑以产生直流电压的平滑电路;以及调色剂层厚度调节部件,其在接收到直接电压时,调节调色剂供给位置之间的区域中的调色剂层的厚度, 被供应和显影区域。