Image forming apparatus with a magnetic brush charger
    2.
    发明授权
    Image forming apparatus with a magnetic brush charger 失效
    具有磁刷充电器的图像形成装置

    公开(公告)号:US5426489A

    公开(公告)日:1995-06-20

    申请号:US215707

    申请日:1994-03-22

    IPC分类号: G03G21/00 G03G15/02 G03G21/08

    摘要: An image forming apparatus such as an electrophotographic copier and an electrophotographic printer. The image forming apparatus includes: a photoreceptor for forming a toner image on its surface; a charger for charging the surface with a bias voltage, including a DC component and a AC component, through a magnetic brush member which is in contact with the surface; a driving unit for moving both of the surface of the photoreceptor and the magnetic brush member in synchronism; a laser unit for imagewisely exposing a predetermined image area of the surface, which is charged by the charger, so that a latent image is formed on the surface; and a discharge lamp for exposing the surface with light so that the surface is discharged. In such the image forming apparatus, the discharge lamp starts exposing the surface with the light and the bias voltage, with which the surface is charged, is set at substantially 0 volt before the driving starts moving the surface and the magnetic brush member; and the predetermined image area of the surface is charged with the bias voltage, including the DC component and the AC component, after the driving starts moving the surface and the magnetic brush member.

    摘要翻译: 诸如电子照相复印机和电子照相打印机的图像形成装置。 图像形成装置包括:用于在其表面上形成调色剂图像的感光体; 用于通过与该表面接触的磁刷部件,利用包括直流分量和交流分量的偏置电压对表面进行充电的充电器; 驱动单元,用于同步地移动感光体的表面和磁刷构件; 激光单元,用于使由充电器充电的表面的预定图像区域成像曝光,从而在表面上形成潜像; 以及用于将光表面曝光以使表面被排出的放电灯。 在这种图像形成装置中,放电灯开始以光照射表面,并且在驱动开始移动表面和磁刷构件之前将表面充电的偏置电压设置为大致0伏特; 并且在驱动开始移动表面和磁刷部件之后,用包括DC分量和AC分量的偏置电压对表面的预定图像区域进行充电。

    Dot exposure type image forming apparatus
    3.
    发明授权
    Dot exposure type image forming apparatus 失效
    点曝光型图像形成装置

    公开(公告)号:US5025272A

    公开(公告)日:1991-06-18

    申请号:US456364

    申请日:1989-12-26

    摘要: The invention provides an apparatus for forming a toner image by reversal development. In the apparatus, there are provided an electric charger for uniformly charging a photoreceptor to a given electrostatic potential; the photoreceptor discharging in response to an exposure light to form an electrostatic latent image, the photoreceptor having a predetermined light decay curve indicating a relation between an amount of the exposure light and a discharged potential on the exposed portion wherein an absolute value of the differential coefficient of the light decay curve is small when the amount of the exposure light is small and the value sharply becomes large when the amount of the exposure light increases; a laser beam exposure device for exposing the photoreceptor with a dot-shaped light beam; and a developing device for providing toner onto the exposed portion of the latent image, thereby forming a toner image.

    摘要翻译: 本发明提供一种通过反转显影形成调色剂图像的装置。 在该装置中,设置有用于使感光体均匀地充电至给定静电电位的充电器; 所述感光体响应于曝光光而放电以形成静电潜像,所述感光体具有预定的光衰减曲线,该光衰减曲线表示曝光部分的曝光量与曝光部分之间的放电电位之间的关系,其中微分系数的绝对值 当曝光光量小时,光衰减曲线小,并且当曝光光量增加时,该值急剧变大; 用于以点状光束曝光感光体的激光束曝光装置; 以及用于将调色剂提供到潜像的暴露部分上的显影装置,由此形成调色剂图像。

    Image forming apparatus with charger of image carrier using magnetic
brush
    4.
    发明授权
    Image forming apparatus with charger of image carrier using magnetic brush 失效
    具有使用磁刷的图像载体的充电器的图像形成装置

    公开(公告)号:US5367365A

    公开(公告)日:1994-11-22

    申请号:US134981

    申请日:1993-10-12

    IPC分类号: G03G15/02

    CPC分类号: G03G15/0241 G03G2215/022

    摘要: An image forming machine has a charging roller on which magnetic particles are supplied to form a magnetic brush and an image forming body which is charged under the condition that the magnetic brush on the charging roller is in an alternating electric field. When the distance between a regulating member that regulates an amount of the magnetic particles passing through and the charging roller is defined to be DB and the distance between the image forming body and the charging roller is defined to be DI, an inequality of 0.7 DB.ltoreq.DI.ltoreq.1.0 DB is satisfied. More preferably, DB is in the relation of 0.2.ltoreq.DB.ltoreq.1.0 in mm.

    摘要翻译: 图像形成机具有充电辊,在该充电辊上供给磁性颗粒以形成磁刷,并且在充电辊上的磁刷处于交变电场的条件下充电的图像形成体。 当调节将通过的磁性粒子的量的调节部件与充电辊之间的距离定义为DB,将图像形成体与充电辊之间的距离定义为DI时,将0.7 DB < /=DI

    Magnetic brush charging device
    5.
    发明授权
    Magnetic brush charging device 失效
    磁刷充电装置

    公开(公告)号:US5357323A

    公开(公告)日:1994-10-18

    申请号:US138411

    申请日:1993-10-15

    IPC分类号: G03G15/02

    CPC分类号: G03G15/0241 G03G2215/022

    摘要: An image forming machine such as a copier or a printer for developing a latent image on a photoreceptor with toner. The image forming machine includes a sleeve for charging the photoreceptor; magnetic particles for forming a magnetic brush on a surface of the sleeve; a driver for driving the sleeve so that the magnetic brush is moved; and a power applying circuit for applying an alternating current between 20 and 500 .mu.A/cm on to a charging area between the sleeve and the photoreceptor; in which the sleeve is located in the vicinity of the photoreceptor so that the magnetic brush is in contact with the surface of the photoreceptor.

    摘要翻译: 一种成像机,例如复印机或打印机,用于利用调色剂在感光体上显影潜像。 图像形成机包括用于对感光体充电的套筒; 用于在套筒的表面上形成磁刷的磁性颗粒; 用于驱动套筒以使磁刷移动的驱动器; 以及用于将20和500μA/ cm之间的交流电施加到套筒和感光体之间的充电区域上的电力施加电路; 其中套筒位于感光体附近,使得磁刷与感光体的表面接触。

    Developing unit with a smoothing plate
    6.
    发明授权
    Developing unit with a smoothing plate 失效
    具有平滑板的显影单元

    公开(公告)号:US5604573A

    公开(公告)日:1997-02-18

    申请号:US331390

    申请日:1994-10-28

    IPC分类号: G03G15/09 G03G15/06

    摘要: A developing apparatus for developing an electrostatic latent image on an image retainer with two-component developer has a rotatable sleeve having a closest position on which the sleeve comes closest to the image retainer, a first magnet fixed in the sleeve in close proximity to the closest position, a second magnet disposed upstream of the first magnet in relation to a rotation direction of the sleeve and a control electrode member. The control electrode member includes an insulating plate member arranged either to be brought into contact with or to be positioned adjacent to the sleeve and a line-shaped electrode member fixed to the plate member.

    摘要翻译: 用于使用双组分显影剂在图像保持器上显影静电潜像的显影装置具有最接近位置的可旋转套筒,套筒最靠近图像保持器,固定在套筒中的第一磁体紧邻最接近 相对于套筒的旋转方向设置在第一磁体的上游的第二磁体和控制电极部件。 控制电极构件包括布置成与套筒接触或邻近套筒定位的绝缘板构件和固定到板构件的线状电极构件。

    Developing apparatus
    7.
    发明授权
    Developing apparatus 失效
    开发设备

    公开(公告)号:US5473416A

    公开(公告)日:1995-12-05

    申请号:US156080

    申请日:1993-11-23

    IPC分类号: G03G15/01 G03G15/08 G03G15/09

    摘要: A developing apparatus includes a control electrode assembly provided in an upstream portion of a developing area of a developing sleeve that is opposed to an image retainer. The control electrode assembly is provided with an insulating member so that it can be located close to the developing sleeve or it can be contacted with the developing sleeve. An end portion of the control electrode is protruded onto a downstream side with respect to an end portion of the insulating member so that a toner cloud can be generated immediately before the developing area.

    摘要翻译: 显影装置包括设置在与图像保持器相对的显影套筒的显影区域的上游部分中的控制电极组件。 控制电极组件设置有绝缘构件,使得其可以靠近显影套筒定位,或者其可以与显影套筒接触。 控制电极的端部相对于绝缘构件的端部突出到下游侧,使得可以在显影区域之前立即产生调色剂云。

    Photosensitive element with water soluble interlayer
    9.
    发明授权
    Photosensitive element with water soluble interlayer 失效
    具有水溶性中间层的光敏元件

    公开(公告)号:US4281055A

    公开(公告)日:1981-07-28

    申请号:US122196

    申请日:1980-02-19

    IPC分类号: G03G5/087 G03G5/14

    摘要: Photosensitive element for electrophotography which comprises(a) a photosensitive layer composed of (1) a binder resin and (2) particles of photoconductive material being dispersed in said binder resin and each particle comprising a photoconductive zinc oxide particle having been encapsulated over its surface with an encapsulating resinous material;(b) an electroconductive support for said photosensitive layer; and(c) an intermediate layer being located between said photosensitive layer and said support, and composed of a water-soluble polymer.The water-soluble polymer preferably is a casein, and a sensitizing agent preferably is adsorbed by the surface of the zinc oxide particle and or included in the encapsulating resinous layer.

    摘要翻译: 用于电子照相术的感光元件,其包括(a)由(1)粘合剂树脂和(2)光导电材料颗粒分散在所述粘合剂树脂中的感光层,并且每个颗粒包含已经在其表面上封装的光电导氧化锌颗粒, 封装树脂材料; (b)用于所述感光层的导电载体; 和(c)中间层位于所述感光层和所述载体之间,由水溶性聚合物组成。 水溶性聚合物优选为酪蛋白,敏化剂优选被氧化锌粒子的表面吸附,或包含在包封树脂层中。

    Image forming method
    10.
    发明授权
    Image forming method 失效
    图像形成方法

    公开(公告)号:US5372906A

    公开(公告)日:1994-12-13

    申请号:US6693

    申请日:1993-01-21

    摘要: A toner image forming method is disclosed. In the method a photoreceptor having a shorter circumferene than length of a toner image to be transferred is used. The photoreceptor is exposed with an exposing light according to an image information to form a latent image and is processed with a step of removing residual toner particles on a non-image portion on the photoreceptor and developing a latent image on the photoreceptor with toner particles at a same time or successively to form the toner image. The toner particles have a specral characteristics which allows tho exposing light to pass through the toner particles. The method allows to provide a compact copying apparatus.

    摘要翻译: 公开了调色剂成像方法。 在该方法中,使用具有比待转印的调色剂图像长度短的感光体。 根据图像信息用曝光光曝光感光体以形成潜像,并且用去除感光体上的非图像部分上的残余调色剂颗粒并用调色剂颗粒在感光体上显影潜像的步骤进行处理 同时或连续地形成调色剂图像。 调色剂颗粒具有允许使光透过调色剂颗粒的特征。 该方法允许提供一种紧凑的复印装置。