Electrostatic copying process and apparatus
    1.
    发明授权
    Electrostatic copying process and apparatus 失效
    静电复印工艺及设备

    公开(公告)号:US4380579A

    公开(公告)日:1983-04-19

    申请号:US88655

    申请日:1979-10-26

    摘要: An electrostatic copying apparatus has a housing having at its top surface a transparent plate on which to place an original to be copied, a rotary drum disposed within the housing and having a photosensitive member on its surface, a charging, a developing, a transferring and a cleaning mechanism which are successively arranged around the rotary drum in the moving direction of its surface, an optical system for projecting the image of the original onto the surface of the rotary drum between the charging means and the developing means, and a receptor sheet conveying system for transferring a receptor sheet through a transfer station defined between the surface of the rotary drum and the transferring mechanism. A support is mounted on the housing so that it is slidable in the forward and rearward directions between its operating position within the housing and its pulled-out position ahead of the housing, and the rotary drum and the developing device are mounted on the support so that they can be separately and independently detached from the support. An electrostatic copying process can be efficiently practiced by using this apparatus.

    摘要翻译: 静电复印设备具有壳体,其顶表面具有透明板,放置要复制的原件,设置在壳体内的旋转鼓,表面具有感光构件,充电,显影,转印和 一个在其表面移动方向上依次布置在旋转滚筒周围的清洁机构,用于将原稿的图像投影到充电装置和显影装置之间的旋转滚筒表面上的光学系统,以及传送 用于通过限定在旋转鼓的表面和转印机构之间的转印站转印接收片的系统。 支撑件安装在壳体上,使得其可以在壳体内的操作位置和其在壳体前方的拉出位置之间在前后方向上滑动,并且旋转鼓和显影装置安装在支撑件上 它们可以单独地和独立地从支撑体分离。 通过使用该装置可以有效地实施静电复印处理。

    Cleaning process for an electrostatic copying apparatus
    4.
    发明授权
    Cleaning process for an electrostatic copying apparatus 失效
    静电复印设备的清洁工艺

    公开(公告)号:US4314018A

    公开(公告)日:1982-02-02

    申请号:US88654

    申请日:1979-10-26

    IPC分类号: G03G15/09 G03G21/00 G03G13/22

    摘要: An electrophotograhic copying process forms an electrostatic latent image on the surface of a photosensitive member, developes the image by applying a monocomponent developer to the latent image to form a toner image, transfers the thus formed toner image by contacting a receptor sheet with the photosensitive member to transfer the toner image to the surface of the receptor sheet, fixes the toner image onto the surface of the receptor sheet, eliminates electrostatic charge from the photosensitive member by irradiating the surface of the photosensitive member with an electrostatic eliminating lamp after the toner image has been transferred to the receptor sheet, and cleans the surface of the photosensitive member by removing the developer remaining on the surface thereof. A developer-holding member holds the same kind of developer as used in the developing step on the surface of said developer-holding member by a stationary magnet disposed within the developer-holding member, and the surface of the developer-holding member is moved in a direction opposite to the direction of movement of the surface of the photosensitive member while contacting the two surfaces through the layer of the developer to mechanically brush the surface of the photosensitive member by the layer of the developer. The magnet having a plurality of poles, and the magnetic pole which is located closest to a position at which the surface of the developer-holding member is closest to the surface of the photosensitive member is downstream in the rotation direction of the developer-holding member by a certain angle with respect to the position at which the two surfaces are closest to each other.

    摘要翻译: 电子照相复印工艺在感光构件的表面上形成静电潜像,通过将单组分显影剂施加到潜像以形成调色剂图像来形成图像,通过使接收片与感光构件接触来转印如此形成的调色剂图像 将调色剂图像转印到接收片的表面上,将调色剂图像固定在接收片的表面上,通过在调色剂图像具有感光部件之后用静电消除灯照射感光部件的表面来消除来自感光部件的静电荷 转移到受体片上,并通过除去残留在其表面上的显影剂来清洁感光构件的表面。 显影剂保持构件通过设置在显影剂保持构件内的固定磁体将与显影步骤中使用的相同种类的显影剂保持在所述显影剂保持构件的表面上,并且显影剂保持构件的表面移动 与感光构件的表面的移动方向相反的方向,同时使两个表面穿过显影剂层接触,以通过显影剂层机械地刷刷感光构件的表面。 所述磁体具有多个极,并且所述磁极位于最靠近所述显影剂保持构件的表面最靠近所述感光构件的表面的位置处,所述磁极在所述显影剂保持构件的旋转方向上是下游 相对于两个表面彼此最靠近的位置有一定角度。

    Method and apparatus for developing latent electrostatic images
    5.
    发明授权
    Method and apparatus for developing latent electrostatic images 失效
    静电潜像显影方法及装置

    公开(公告)号:US4430410A

    公开(公告)日:1984-02-07

    申请号:US70052

    申请日:1979-08-27

    IPC分类号: G03G15/09 G03G13/09

    CPC分类号: G03G15/0914 Y10S430/104

    摘要: In a method and apparatus for developing a latent electrostatic image formed on the surface of an image-bearing material by applying a powdery developer thereto, which includes magnetically retaining a layer of a relatively conductive one-component developer having a resistivity of not more than 10.sup.13 ohms-cm on the surface of a developer-retaining member, and bringing the developer on the surface of the developer-retaining member into contact with the surface of the image bearing material, the improvement wherein the developer-retaining member has a resistance, measured by a point-plane resistance measuring method in an environment kept at a temperature of 20.degree. C. and a humidity of 50%, of from 3.times.10.sup.7 ohms to 1.times.10.sup.10 ohms. The improved method makes possible good development without causing a background fog or a tail effect.

    摘要翻译: 在通过向其施加粉末显影剂来显影形成在图像承载材料的表面上的静电潜像的方法和装置中,其包括磁性地保持具有不大于1013的电阻率的相对导电的单组分显影剂的层 在显影剂保持构件的表面上的欧姆 - 厘米,并使显影剂保持构件的表面上的显影剂与图像承载材料的表面接触,其中显影剂保持构件具有电阻,测量 通过在保持在20℃的温度和50%的湿度为3×10 7欧姆至1×10 10欧姆的环境中的点平面电阻测量方法。 改进的方法可以很好地发展而不引起背景雾或尾巴效应。

    Contact heat fixing device
    6.
    发明授权
    Contact heat fixing device 失效
    接触式热定影装置

    公开(公告)号:US4045165A

    公开(公告)日:1977-08-30

    申请号:US623327

    申请日:1975-10-17

    IPC分类号: G03G15/20 F27B9/28

    CPC分类号: G03G15/2025

    摘要: A contact heat fixing device which comprises a driving heated roller having a heating mechanism disposed in the interior thereof and a surface coated with an offset preventing material, a press roller which is rotated in intimate contact under pressure with said heat roller, a vessel for containing therein an offset preventing liquid and a feed mechanism for supplying the offset preventing liquid to the heated roller from the vessel, fixation of a toner image being accomplished by the passage of a support having the toner image thereon through the nip position of the heated roller and the press roller, wherein said feed mechanism includes an applicator for applying the offset preventing liquid to the surface of the heated roller and supply means for supplying the offset preventing liquid from the vessel to the applicator, said applicator being arranged so that it can shift between a position (PI) where it has a pressing contact with said supply means and a position (P2) where it has a pressing contact with said heated roller, in such a manner that the offset preventing liquid is supplied to said applicator when it is at said position (P1), the applicator is moved from said position (P1) to the position (P2) synchronously with feeding of said support to have temporary contact with the surface of the heated roller and apply thereto the offset preventing liquid, and the applicator is then returned to the position (P2).

    摘要翻译: 一种接触式热定影装置,包括:驱动加热辊,其具有设置在其内部的加热机构和涂覆有防偏移材料的表面;加压辊,其在所述加热辊的压力下紧密接触地旋转;容纳容器 其中具有偏移防止液体和用于将防偏移液体从容器供应到加热辊的进给机构,通过其上具有调色剂图像的支撑件通过加热辊的辊隙位置来实现调色剂图像的固定,以及 压辊,其中所述进给机构包括用于将偏置防止液体施加到加热辊的表面的供给器和用于将防偏移液体从容器供应到施加器的供应装置,所述施加器布置成使得其可以在 与所述供给装置进行按压接触的位置(PI)以及具有所述供给装置的位置(P2) 与所述加热辊按压接触,使得当偏移防止液体处于所述位置(P1)时,防偏移液体被供应到所述施加器,施加器与进给同步地从所述位置(P1)移动到位置(P2) 的所述支撑件与加热辊的表面临时接触并将其施加到防偏移液体上,然后将施加器返回到位置(P2)。

    Magnetic brush development method
    7.
    发明授权
    Magnetic brush development method 失效
    磁刷开发方法

    公开(公告)号:US4540645A

    公开(公告)日:1985-09-10

    申请号:US574575

    申请日:1984-01-27

    摘要: Disclosed is a magnetic brush development method comprising supplying a two-component type developer comprising a mixture of magnetic carrier particles with toner particles chargeable by friction with the magnetic carrier particles onto a developing sleeve consisting of a non-magnetic sleeve having a magnet installed therein to form a magnetic brush of the developer, and bringing the magnetic brush in sliding contact with the surface of a photosensitive material having an electrostatic latent image formed thereon in the state where a bias voltage is applied between the photosensitive material and the sleeve, whereby a toner image corresponding to the electrostatic latent image is formed, wherein the two-component type developer comprises a ferrite carrier and electroscopic toner particles at a weight ratio of from 4/1 to 20/1.

    摘要翻译: 公开了一种磁刷显影方法,其包括将包含磁性载体颗粒的混合物的二组分型显影剂与通过与磁性载体颗粒摩擦而带电的调色剂颗粒引入到由其中安装有磁体的非磁性套筒组成的显影套筒上 形成显影剂的磁刷,并且在感光材料和套筒之间施加偏置电压的状态下使磁刷与其上形成有静电潜像的感光材料的表面滑动接触,由此调色剂 形成对应于静电潜像的图像,其中双组分型显影剂包含铁素体载体和重量比为4/1至20/1的电致调色剂颗粒。

    Cleaning device for an image-carrying member
    8.
    发明授权
    Cleaning device for an image-carrying member 失效
    用于图像承载构件的清洁装置

    公开(公告)号:US4440488A

    公开(公告)日:1984-04-03

    申请号:US411479

    申请日:1982-08-25

    IPC分类号: G03G21/10 G03G21/00 G03G15/08

    CPC分类号: G03G21/0029

    摘要: A cleaning device for an image-carrying member includes an elastic blade having a proximal end fixed to a holder and a terminal end held against the image-carrying member for removing toner from the image-carrying member upon movement of the image-carrying member. The terminal end of the blade flexes to extend forward in the direction of movement of the image-carrying member at an angle of .alpha. to a line tangential to a surface of the image carrying member rearward of a contact point between the terminal end of the blade and the image carrying member with respect to the direction of movement thereof. The blade has an axis passing through the proximal end of the blade and extending at an angle of .theta. to the tangent rearward of the contact point with respect to the direction of movement of the image-carrying member. The angles .alpha. and .theta. are selected to meet the following relationship:.theta.>90.degree.>.alpha..

    摘要翻译: 用于图像承载构件的清洁装置包括弹性刮板,其具有固定到保持器的近端,并且端部保持抵靠图像承载构件,用于在图像承载构件移动时从图像承载构件移除调色剂。 叶片的终端弯曲成沿着图像承载构件的移动方向向前延伸,其角度为与刀片终端之间的接触点之后的图像承载构件的表面相切的直线 和图像承载部件相对于其运动方向。 叶片具有穿过叶片近端的轴线,相对于图像承载部件的运动方向以θ的角度延伸到接触点后方的切线。 角度α和θ被选择以满足以下关系:θ> 90°α。