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48 条记录 (耗时 0.049 秒)

    Developing device comprising a magnetic member
    4.
    发明授权
    Developing device comprising a magnetic member 失效
    显影装置，包括磁性构件

    公开(公告)号：US5781835A

    公开(公告)日：1998-07-14

    申请号：US556697

    申请日：1995-11-13

    申请人： Keiji Okano ,  Takahiro Inoue ,  Masaki Ojima ,  Seiji Yamaguchi

    发明人： Keiji Okano ,  Takahiro Inoue ,  Masaki Ojima ,  Seiji Yamaguchi

    IPC分类号： G03G15/08 ,  G03G15/09 ,  G03G21/18 ,  G03G21/00

    CPC分类号： G03G15/0921 ,  G03G15/09

    摘要： A developing device includes a developer container for accommodating one component magnetic toner; a rotatable toner carrying member, faced to an image bearing member for bearing an electrostatic image to form a developing zone therebetween, for carrying the toner in the container; a magnet member in the toner carrying member; a regulating member, elastically urged to the toner carrying member to form a nip therebetween, for regulating a toner layer thickness on the toner carrying member; wherein the magnet member has a magnetic pole, upstream of the nip with respect to a movement direction of the toner carrying member, for supplying the toner in the container to the toner carrying member, and wherein the magnet member does not generate a magnetic field effective for chain erection of the toner in a range from an upstream end of the nip to a downstream end of the developing zone.

    摘要翻译： 显影装置包括用于容纳单组分磁性调色剂的显影剂容器; 可旋转的调色剂承载构件，面对用于承载静电图像以在其间形成显影区域的图像承载构件，用于将调色剂携带在容器中; 调色剂承载构件中的磁体构件; 调节构件，弹性地推压到调色剂承载构件上以在其间形成辊隙，用于调节调色剂承载构件上的调色剂层厚度; 其中所述磁体构件具有相对于所述调色剂承载构件的移动方向的所述辊隙上游的磁极，用于将所述容器中的调色剂供应到所述调色剂承载构件，并且其中所述磁体构件不产生有效的磁场 用于在从间隙的上游端到显影区的下游端的范围内链式调色剂。

    Charging system, process cartridge and image forming apparatus
    7.
    发明授权
    Charging system, process cartridge and image forming apparatus 失效
    充电系统，处理盒和成像设备

    公开(公告)号：US06741824B2

    公开(公告)日：2004-05-25

    申请号：US10418219

    申请日：2003-04-18

    申请人： Masaki Ojima ,  Noboru Kashimura ,  Keiji Okano ,  Junichi Kato

    发明人： Masaki Ojima ,  Noboru Kashimura ,  Keiji Okano ,  Junichi Kato

    IPC分类号： C03G1502

    CPC分类号： G03G15/0216

    摘要： An image forming apparatus has an image bearing member; and a charging member forming a nip with the image bearing member to charge the image bearing member. Conductive particles are provided in the nip and a time factor &agr; represented by a following equation satisfies a condition &agr;>15: &agr;=2&pgr;·k·Nc·(W/Vc)/(&rgr;·Cd·Z) Z=−0.5·1n(&pgr;·k·Nc)−1n({square root over (&bgr;)}·D/2) (&bgr;=1.1932) in which &rgr; (&OHgr;) represents a surface resistivity of said image bearing member; Cd (F/mm2) represents an electrostatic capacitance of the image bearing member; D (mm) represents a diameter of the conductive particle; Nc (particle/mm2) represents a density of the conductive particles present on the charging member; Vc (mm/sec) represents a surface moving speed of the charging member; Vd (mm/sec) represents a surface moving speed of the image bearing member; k=Vc/Vd; and W (mm) represents a width of the nip in the moving direction of the image bearing member.

    摘要翻译： 图像形成装置具有图像承载部件; 以及与图像承载部件形成辊隙以对图像承载部件充电的充电部件。 在辊隙中提供导电颗粒，由下式表示的时间因子α满足条件α> 15：其中rho（Ω）表示所述图像承载部件的表面电阻率; Cd（F / mm 2）表示图像承载部件的静电电容; D（mm）表示导电粒子的直径; Nc（粒子/ mm 2）表示充电部件上存在的导电粒子的密度; Vc（mm / sec）表示充电部件的表面移动速度; Vd（mm / sec）表示图像承载部件的表面移动速度; k = Vc / Vd; W（mm）表示图像承载部件的移动方向上的辊隙的宽度。

    IMAGE FORMING APPARATUS AND CONTROL METHOD OF THE IMAGE FORMING APPARATUS
    9.
    发明申请
    IMAGE FORMING APPARATUS AND CONTROL METHOD OF THE IMAGE FORMING APPARATUS 失效
    图像形成装置和图像形成装置的控制方法

    公开(公告)号：US20070183802A1

    公开(公告)日：2007-08-09

    申请号：US11670052

    申请日：2007-02-01

    申请人： Katsuhiro Kojima ,  Kenji Matsuda ,  Hideki Matsumoto ,  Masaki Ojima ,  Minoru Matsuguma

    发明人： Katsuhiro Kojima ,  Kenji Matsuda ,  Hideki Matsumoto ,  Masaki Ojima ,  Minoru Matsuguma

    IPC分类号： G03G15/01

    CPC分类号： G03G15/50 ,  G03G15/0121 ,  G03G15/0173 ,  G03G2215/0177

    摘要： An image forming apparatus has: a photosensitive drum onto which images are formed; and a primary transfer roller which sequentially forms the color images onto the photosensitive drum by using a plurality of developing devices having different color developers and transfers the color images formed on the drum onto a transfer member or a recording medium. Order of forming the images onto an image bearing member on a photosensitive member is switched based on a use amount of each of the plurality of developing devices.

    摘要翻译： 图像形成装置具有：形成图像的感光鼓; 以及通过使用具有不同显色剂的多个显影装置将彩色图像依次形成到感光鼓上并将形成在滚筒上的彩色图像转印到转印部件或记录介质上的一次转印辊。 基于多个显影装置中的每一个的使用量来切换将图像形成在感光构件上的图像承载构件上的顺序。

    Image forming apparatus
    10.
    发明申请
    Image forming apparatus 失效
    图像形成装置

    公开(公告)号：US20060222400A1

    公开(公告)日：2006-10-05

    申请号：US11395127

    申请日：2006-04-03

    申请人： Minoru Matsuguma ,  Kenji Matsuda ,  Masaki Ojima ,  Katsuhiro Kojima ,  Hideki Matsumoto

    发明人： Minoru Matsuguma ,  Kenji Matsuda ,  Masaki Ojima ,  Katsuhiro Kojima ,  Hideki Matsumoto

    IPC分类号： G03G15/02

    CPC分类号： G03G15/0225 ,  G03G2215/025

    摘要： An image forming apparatus includes an image bearing member; a charging member for contacting a peripheral surface of the image bearing member to electrically charge the peripheral surface; a first developing device for forming a first developed image on the peripheral surface of the image bearing member charged by the charging member; a second developing device for forming a second developed image on the peripheral surface, wherein a combined developed image is formed by superimposing the first developed image and the second developed image on a common transfer material, wherein when the combined image is formed, the charging member is cleaned by transferring material deposited on the charging member to a region between the first developed image and the second developed image on the peripheral surface of the image bearing member, and wherein the first developed image or the second developed image is not formed in the region.

    摘要翻译： 图像形成装置包括：图像承载部件; 充电构件，用于接触图像承载构件的外围表面以对外围表面进行充电; 用于在由充电部件充电的图像承载部件的外周表面上形成第一显影图像的第一显影装置; 用于在外围表面上形成第二显影图像的第二显影装置，其中通过将第一显影图像和第二显影图像叠加在共同的转印材料上而形成组合显影图像，其中当组合图像形成时，充电部件 通过将沉积在充电构件上的材料转印到图像承载部件的圆周表面上的第一显影图像和第二显影图像之间的区域来清洁，并且其中第一显影图像或第二显影图像不形成在该区域中 。