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    Charging apparatus with first and second charging members
    4.
    发明授权
    Charging apparatus with first and second charging members 有权
    具有第一和第二充电构件的充电装置

    公开(公告)号：US06301459B1

    公开(公告)日：2001-10-09

    申请号：US09502601

    申请日：2000-02-11

    申请人： Harumi Ishiyama ,  Yasushi Sato ,  Hideyuki Yano ,  Tadashi Furuya ,  Yasunori Chigono ,  Seiji Mashimo

    发明人： Harumi Ishiyama ,  Yasushi Sato ,  Hideyuki Yano ,  Tadashi Furuya ,  Yasunori Chigono ,  Seiji Mashimo

    IPC分类号： G03G1502

    CPC分类号： G03G15/751 ,  G03G15/0241 ,  G03G2215/022

    摘要： A charging apparatus includes a first charging member of being supplied with a voltage to charge a member to be charged. A first charging member has magnetic particles in the form of a magnetic brush contactable to the member to be charged. A second charging member charges a region of the member to be charged corresponding to an end portion, in a longitudinal direction of the charging member, of the magnetic particles, wherein by the second charging member, the region has a potential of the same charge polarity of the voltage when the region reaches a charging position of this first charging member.

    摘要翻译： 充电装置包括：第一充电构件，其被提供有电压以对要充电的构件进行充电。 第一充电元件具有可与被充电元件接触的磁刷形式的磁性颗粒。 第二充电部件对磁性粒子的沿充电部件的长度方向的端部的被充电部件的区域进行充电，其中，通过第二充电部件，该区域具有相同电荷极性的电位 当该区域到达该第一充电部件的充电位置时的电压。

    Charging device
    5.
    发明授权
    Charging device 失效
    充电装置

    公开(公告)号：US5579095A

    公开(公告)日：1996-11-26

    申请号：US492526

    申请日：1995-06-20

    申请人： Hideyuki Yano ,  Harumi Ishiyama ,  Tadashi Furuya ,  Seiji Mashimo

    发明人： Hideyuki Yano ,  Harumi Ishiyama ,  Tadashi Furuya ,  Seiji Mashimo

    IPC分类号： G03G15/02

    CPC分类号： G03G15/0241 ,  G03G2215/022 ,  G03G2221/183

    摘要： A charging device for charging a member to be charged, includes a charging material for charging the member to be charged, the charging material including a layer of particles capable of being supplied with a voltage and contactable to the member to be charged, wherein the particle layer comprises first particles having a volume resistivity of not less than 6.0.times.10.sup.3 Ohm.cm and less than 1.0.times.10.sup.5 Ohm.cm and second particles having a volume resistivity of not less than 6.3.times.10.sup.5 Ohm.cm mixed with the first particles.

    摘要翻译： 一种用于对要充电的部件进行充电的充电装置，包括用于对被充电部件充电的充电材料，所述充电材料包括能够被提供电压并可与待充电部件接触的颗粒层，其中所述颗粒 层包含体积电阻率不小于6.0×10 3欧姆·厘米且小于1.0×10 5欧姆·厘米的第一颗粒，并且体积电阻率不小于6.3×10 5欧姆·厘米的第二颗粒与第一颗粒混合。

    Charging device using a magnetic brush contactable to a member to be charged and image forming apparatus using same
    6.
    发明授权
    Charging device using a magnetic brush contactable to a member to be charged and image forming apparatus using same 失效
    使用可与要充电的构件接触的磁刷的充电装置以及使用其的成像装置

    公开(公告)号：US6157800A

    公开(公告)日：2000-12-05

    申请号：US512339

    申请日：1995-08-08

    申请人： Harumi Ishiyama ,  Hideyuki Yano ,  Tadashi Furuya

    发明人： Harumi Ishiyama ,  Hideyuki Yano ,  Tadashi Furuya

    IPC分类号： G03G9/08 ,  G03G15/02

    CPC分类号： G03G15/0241 ,  G03G2215/022 ,  G03G2221/0005

    摘要： A charging device for charging a member to be charged includes a charging member to which a voltage is applicable to charge the member to be charged, the charging member having a magnetic brush of magnetic particles contactable to the member to be charged, and a supporting member for supporting the magnetic particles; wherein the the magnetic particles have a resistance value of 1.times.10.sup.4 -1.times.10.sup.7 (Ohm) when 1-1000(V) is applied thereto.

    摘要翻译： 用于对要充电的构件进行充电的充电装置包括：充电构件，其可施加电压以对要充电的构件充电;充电构件，具有可与待充电构件接触的磁性颗粒的磁刷;支撑构件 用于支撑磁性颗粒; 其中当施加1-1000（V）时，所述磁性颗粒的电阻值为1×104-1×107（欧姆）。

    Contact charger for charging a photosensitive member
    8.
    发明授权
    Contact charger for charging a photosensitive member 失效
    接触充电器对感光元件充电

    公开(公告)号：US5729802A

    公开(公告)日：1998-03-17

    申请号：US709739

    申请日：1996-09-09

    申请人： Jun Hirabayashi ,  Nobuyuki Ito ,  Harumi Ishiyama ,  Tadashi Furuya ,  Yasunori Chigono ,  Seiji Mashimo

    发明人： Jun Hirabayashi ,  Nobuyuki Ito ,  Harumi Ishiyama ,  Tadashi Furuya ,  Yasunori Chigono ,  Seiji Mashimo

    IPC分类号： G03G15/02

    CPC分类号： G03G15/0241 ,  G03G2215/022

    摘要： An image forming apparatus includes an image bearing device, a charger contactable to the image bearing device for effecting contact charging of the image bearing device, the charger being supplied with a voltage having a DC component and an AC component, and the charger being provided with an electrode for receiving the voltage; wherein the following is satisfied: when an electric field formed between the image bearing device and the electrode is not more than .vertline.E/d.sub.SD .vertline. (V/m), a resistance of the charger per unit area of contact between the image bearing device and the charger is larger than 20E/(wCV.sub.DC) (.OMEGA.m.sup.2) and is larger than the resistance when the electric field is more than .vertline.(E+V.sub.DC)/d.sub.SD .vertline. (V/m) where E(V) is an amplitude of the AC component; w(rad) is an angular velocity of the AC component; d.sub.SD (m) is a minimum distance between the electrode and the image bearing device; C(F/m.sup.2) is an electrostatic capacity per unit area of the image bearing device; and V.sub.DC (V) is a voltage of the DC component.

    摘要翻译： 图像形成装置包括图像承载装置，可与图像承载装置接触的充电器，用于实现图像承载装置的接触充电，充电器被提供有具有直流分量和交流分量的电压，充电器具有 用于接收电压的电极; 其中满足以下条件：当形成在图像承载装置和电极之间的电场不大于| E / dSD |时 （V / m），图像承载装置与充电器之间的每单位接触面积的充电器的电阻大于20E /（wCVDC）（OMEGA m2），并且大于电场大于| （E + VDC）/ dSD | （V / m）其中E（V）是AC分量的振幅; w（rad）是AC分量的角速度; dSD（m）是电极和图像承载装置之间的最小距离; C（F / m2）是图像承载装置每单位面积的静电容量; VDC（V）是DC分量的电压。

    Image forming method, image forming apparatus and process cartridge
    9.
    发明授权
    Image forming method, image forming apparatus and process cartridge 失效
    图像形成方法，图像形成装置和处理盒

    公开(公告)号：US5659852A

    公开(公告)日：1997-08-19

    申请号：US615823

    申请日：1996-03-14

    申请人： Yasunori Chigono ,  Harumi Ishiyama ,  Tadashi Furuya ,  Seiji Mashimo

    发明人： Yasunori Chigono ,  Harumi Ishiyama ,  Tadashi Furuya ,  Seiji Mashimo

    IPC分类号： G03G9/08 ,  G03G9/093 ,  G03G15/02

    CPC分类号： B82Y15/00 ,  G03G15/0241 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0823 ,  G03G9/093 ,  G03G2215/022 ,  Y10S430/102

    摘要： The image forming method comprises, electrostatically charging an image bearing member using a contact charging assembly, forming an electrostatic latent image on the image bearing member thus charged, developing the electrostatic latent image with a magnetic toner to form a toner image and transferring the toner image to a transfer medium, wherein the charging assembly comprises a magnetic brush formed from conductive magnetic particles magnetically bound, and the charging assembly comes into contact with the image bearing member to charge the surface of the image bearing member by directly injecting charges into the electron level present on the surface of the image bearing member and the magnetic toner has a value of .sigma..D..delta. of 150 or less, where the value is obtained by multiplying i) a magnetization quantity .sigma. (Am.sup.2 /kg) in a magnetic field of 1K oersted as measured by a vibration magnetometer, ii) a weight average particle diameter (D.sub.4) D (.mu.m) of the magnetic toner and iii) a density .delta. (g/cm.sup.3) thereof.

    摘要翻译： 图像形成方法包括使用接触充电组件对图像承载部件静电充电，在如此充电的图像承载部件上形成静电潜像，用磁性调色剂显影静电潜像以形成调色剂图像并转印调色剂图像 转移介质，其中充电组件包括由磁性结合的导电磁性颗粒形成的磁刷，并且充电组件与图像承载部件接触，以通过将电荷直接注入电子等级来对图像承载部件的表面充电 存在于图像承载部件的表面上，并且磁性调色剂具有σ.D的值。 δ为150以下，其中通过i）通过振动磁力计测量的1K奥斯特的磁场中的磁化量σ（Am2 / kg）获得值，ii）重均粒径（D4）D（ μm）的磁性调色剂和iii）其密度δ（g / cm 3）。

    Magnetic charging brush having particular magnetic fields
    10.
    发明授权
    Magnetic charging brush having particular magnetic fields 失效
    具有特定磁场的磁性充电刷

    公开(公告)号：US5754927A

    公开(公告)日：1998-05-19

    申请号：US621885

    申请日：1996-03-26

    申请人： Harumi Ishiyama ,  Tadashi Furuya ,  Takeo Yamamoto ,  Yasunori Chigono ,  Seiji Mashimo

    发明人： Harumi Ishiyama ,  Tadashi Furuya ,  Takeo Yamamoto ,  Yasunori Chigono ,  Seiji Mashimo

    IPC分类号： G03G15/02

    CPC分类号： G03G15/0241 ,  G03G2215/022

    摘要： A charging device includes a charging member for charging a movable member to be charged; the charging member including a carrying member for carrying a magnetic particle layer contactable to the member to be charged, the carrying member being adapted to be supplied with a voltage; wherein a direction of a magnetic force acting on magnetic particles in the magnetic particle layer at a downstream end position with respect to a movement direction of the member to be charged at a portion where the member to be charged and the magnetic particle layer are contacted, is opposite from the member to be charged with respect to a tangent line of the member to be charged at the end position.

    摘要翻译： 充电装置包括用于对要充电的可动构件充电的充电构件; 所述充电构件包括用于承载与待充电构件可接触的磁性颗粒层的承载构件，所述承载构件适于被提供电压; 其特征在于，相对于所述被充电部件与所述磁性粒子层接触的部分的被充电部件的移动方向在下游端位置处的作用于所述磁性粒子层的磁性粒子的磁力的方向， 相对于要在终端位置充电的成员的切线相对于被充电的元件。