Electrostatic recording control method and electrostatic recording
apparatus
    1.
    发明授权
    Electrostatic recording control method and electrostatic recording apparatus 失效
    静电记录控制方法和静电记录装置

    公开(公告)号:US5659841A

    公开(公告)日:1997-08-19

    申请号:US580354

    申请日:1995-12-28

    CPC分类号: G03G15/5037 G03G15/01

    摘要: An electrostatic recording control method wherein there are provided a single surface potential sensor between a first and second developer units, a detector for detecting the characteristic of a factor influencing the dark attenuation characteristic of the sensitive body, comprising the steps of: irradiating the surface of a charged sensitive body with the test pattern having prescribed exposure energy by an exposure system to form a test electrostatic image on the photosensitive body; passing the test electrostatic latent image with the developing function of the first developer unit stopping to measure the surface potential of the test electrostatic latent image by the sensor; changing the control setting potential at a position where the sensor is set according to the output from the detector; comparing the potential measured by the passing step with the control setting potential changed by the changing step to control one of the voltage to be applied to the latent image forming charger and the exposure energy for forming the test pattern so that the measurement potential is a control setting potential; forming a test electrostatic latent image on the photosensitive body after the comparing step; applying a prescribed bias to the first developer unit to form the first toner image corresponding to the test electrostatic latent image; and measuring the surface potential of the first toner image to set the bias voltage of the second developer unit according to the value measured.

    摘要翻译: 一种静电记录控制方法,其中在第一和第二显影单元之间提供单个表面电位传感器,用于检测影响敏感体的暗衰减特性的因素的特性的检测器,包括以下步骤: 具有通过曝光系统具有规定曝光能量的测试图案的带电敏感体,以在感光体上形成测试静电图像; 使第一显影单元的显影功能通过测试静电潜像停止,以测量传感器测试的静电潜像的表面电位; 根据检测器的输出,在设定传感器的位置改变控制设定电位; 将通过步骤测量的电位与通过改变步骤改变的控制设置电位进行比较,以控制要施加到潜像形成充电器的电压中的一个和用于形成测试图案的曝光能量,使得测量电位为控制 设定潜力 在比较步骤之后在感光体上形成测试静电潜像; 对所述第一显影剂单元施加规定的偏压,以形成与所述测试静电潜像对应的第一调色剂图像; 以及测量第一调色剂图像的表面电位,以根据所测量的值设定第二显影剂单元的偏置电压。

    Color image forming apparatus and color image forming method thereof
    2.
    发明授权
    Color image forming apparatus and color image forming method thereof 失效
    彩色图像形成装置及其彩色图像形成方法

    公开(公告)号:US5869214A

    公开(公告)日:1999-02-09

    申请号:US895991

    申请日:1997-07-17

    摘要: A dielectric belt 24 is retracted from a photoreceptor 2 before printing, and electrophotographic processes including a process of forming an electrostatic latent image, a developing process and a cleaning process except for a transferring process are repeated. During the repetition of the electrophotographic processes, a surface electric potential in the background of the photoreceptor 2 is measured by the electric potential sensor 10. Alternatively, a quantity of toner adhering to the background of the photoreceptor 2 is measured by the toner sensor 37 and the toner electric charge sensor 36. When the measured values are lower than the reference values, it is judged that no fringe image is generated in the recording condition, and the printing operation is carried out.

    摘要翻译: 介质带24在印刷之前从感光体2退回,并且重复包括形成静电潜像的处理,显影处理和除了转印处理之外的清洁处理的电子照相处理。 在重复电子照相过程期间,通过电位传感器10测量感光体2的背景中的表面电位。或者,通过调色剂传感器37测量附着在感光体2背景上的调色剂量, 调色剂电荷传感器36.当测量值低于参考值时,判断在记录条件下不产生条纹图像,并且执行打印操作。