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    • 3. 发明授权
    • Electrophotographic copying process
    • 电子照相复印工艺
    • US4565436A
    • 1986-01-21
    • US549314
    • 1983-11-07
    • Takao OkadaAkitoshi TodaYoshiyuki Mimura
    • Takao OkadaAkitoshi TodaYoshiyuki Mimura
    • G03G15/05G03G13/056G03G15/22
    • G03G13/056
    • An electrophotographic process and apparatus for performing the process which employs an electrophotographic photosensitive member of a basic construction in which a photoconductive layer and a transparent insulator layer are sequentially laminated on the surface of a conductive supporter. The process comprises a first step of providing a primary charge uniformly from the surface side of the transparent insulator layer, a second step of performing a secondary corona charging during an imagewise exposure by applying a square wave voltage whose voltage-time integration value of a polarity reverse to the primary charge is larger than that of the same polarity thereas and a third step of forming an electrostatic latent image on the surface of the transparent insulator layer by applying a uniform exposure.
    • 一种用于执行该方法的电子照相方法和装置,其采用基本结构的电子照相感光构件,其中光电导层和透明绝缘体层依次层压在导电支撑体的表面上。 该方法包括从透明绝缘体层的表面侧均匀地提供初级电荷的第一步骤;第二步骤,通过施加方波电压在成像曝光期间进行二次电晕充电,该方波电压的极性的电压 - 时间积分值 与主要电荷相反的电荷大于其相同极性的电荷,以及通过均匀曝光在透明绝缘体层的表面上形成静电潜像的第三步骤。
    • 4. 发明授权
    • Electrophotographic process with a.c. charger producing greater positive
charge
    • 电子照相过程与a.c. 充电器产生更大的正电荷
    • US4526848A
    • 1985-07-02
    • US549069
    • 1983-11-07
    • Takao OkadaAkitoshi TodaYoshiyuki Mimura
    • Takao OkadaAkitoshi TodaYoshiyuki Mimura
    • G03G15/05G03G13/056G03G15/056G03G13/052G03G13/24
    • G03G15/056G03G13/056Y10S430/102
    • An electrophotographic process employs an electrophotographic photosensitive member of a basic construction in which a photoconductive layer and a transparent insulator layer are sequentially laminated on the surface of a conductive supporter. The process in one preferred embodiment comprises a first step of providing a primary charge uniformly from the surface side of the transparent insulator layer, a second step of performing a secondary corona charging during an imagewise exposure by applying an a.c. voltage in which the firing angle of a negative half wave is controlled in phase to be within a phase angle corresponding to a lower voltage than the firing angle so that the positive discharge period may be longer than the negative one during one period, and a third step of forming an electrostatic latent image on the transparent insulator layer by applying a uniform exposure.
    • 电子照相方法使用基本结构的电子照相感光构件,其中光导电层和透明绝缘体层依次层压在导电支撑体的表面上。 一个优选实施方案中的方法包括从透明绝缘体层的表面侧均匀提供初级电荷的第一步骤,在成像曝光期间通过施加直流电流进行二次电晕充电的第二步骤。 将负半波的触发角相位控制在与触发角以下的电压相对应的相位角内的电压,使得在一个周期期间正放电周期可能比负值长, 通过均匀曝光在透明绝缘体层上形成静电潜像的步骤。
    • 7. 发明授权
    • Electrophotographic color copying paper and copying method making use of
the same
    • 使用电子照相彩色复印纸和复印方法
    • US4604337A
    • 1986-08-05
    • US675785
    • 1984-11-28
    • Yoshiyuki MimuraAkitoshi Toda
    • Yoshiyuki MimuraAkitoshi Toda
    • G03G5/12G03G13/01
    • G03G5/12G03G13/01
    • An electrophotographic color copying paper has a transparent substrate layer, a color filter layer formed on one side of the transparent substrate layer, and a transparent photosensitive layer formed on the other side of the transparent substrate layer. Using this copying paper, an electrophotographic color copy is obtained by a method having the steps of effecting a uniform charging on the side of the copying paper carrying the transparent photosensitive layer, effecting a color light image exposure from the side of the copying paper carrying the color filter so as to form an electrostatic latent image on the transparent photosensitive layer, and developing the electrostatic latent image on the transparent photosensitive layer by a black toner.
    • 电子照相彩色复印纸具有透明基板层,形成在透明基板层一侧的滤色器层和形成在透明基板层另一侧的透明感光层。 使用该复印纸,通过以下方法获得电子照相彩色复印件,该方法具有以下步骤:在携带透明感光层的复印纸的一侧进行均匀充电,从携带该复印纸的复印纸侧进行彩色光图像曝光 以在透明感光层上形成静电潜像,并通过黑色调色剂将静电潜像显影在透明感光层上。
    • 8. 发明授权
    • Method of removing electrostatic charge from electrophotographic
photosensitive device
    • 从电子照相感光装置中除去静电荷的方法
    • US4578332A
    • 1986-03-25
    • US669990
    • 1984-11-09
    • Akitoshi TodaYoshiyuki Mimura
    • Akitoshi TodaYoshiyuki Mimura
    • G03G21/06G03G13/24
    • G03G21/06
    • A method of removing electrostatic charge for erasing an electrostatic latent image from an electrophotographic photosensitive device having a conductive layer overlain by a photoconductive layer which in turn is overlain by a transparent insulating layer. The method comprises a first step of uniformly charging the photosensitive device by a D.C. charger while subjecting the photosensitive device to an exposure over the whole area thereof; a second step of effecting a charging for adjustment of potential level so as to adjust the potential of the photosensitive device from the level obtained as a result of the charging in the first step to the aimed level; and a third step of exposing the whole area of the photosensitive device. With this method, it is possible to remove electrostatic charge almost perfectly to eliminate undersirable shift of the potential of the photosensitive device after the erasion.
    • 从具有导电层的电子照相感光装置上去除静电潜像的方法,该静电电荷覆盖在光电导层上,该光导电层又由透明绝缘层覆盖。 该方法包括:通过直流充电器对感光装置均匀充电的第一步骤,同时使感光装置在其整个区域上曝光; 进行用于调整电位电平的充电的第二步骤,以将感光装置的电位从由第一步骤中的充电获得的水平调整到目标水平; 以及曝光感光装置的整个区域的第三步骤。 利用这种方法,可以几乎完全去除静电电荷,以消除在擦除之后感光器件的电位的不期望的移动。