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    Image forming apparatus having an image-quality correction function
    2.
    发明授权
    Image forming apparatus having an image-quality correction function 失效
    具有图像质量校正功能的图像形成装置

    公开(公告)号：US5477308A

    公开(公告)日：1995-12-19

    申请号：US157929

    申请日：1993-11-24

    申请人： Kazuyuki Ohnishi ,  Yasutaka Maeda ,  Yoichi Shimazawa ,  Mihoko Okada ,  Yuichi Kazaki ,  Shin-ichirou Ohhashi ,  Yoshie Iwakura

    发明人： Kazuyuki Ohnishi ,  Yasutaka Maeda ,  Yoichi Shimazawa ,  Mihoko Okada ,  Yuichi Kazaki ,  Shin-ichirou Ohhashi ,  Yoshie Iwakura

    IPC分类号： G03G15/00 ,  H04N1/32

    CPC分类号： G03G15/50 ,  G03G15/5041 ,  H04N1/32561 ,  G03G2215/00042 ,  H04N2201/0081 ,  H04N2201/0082

    摘要： An image forming apparatus is designed to compensate for voltage to be applied to an exposure lamp and a charger in accordance with changes in the density of a toner image formed on a photoreceptor that occur from its initial state to its final state after an image forming operation. More specifically, the density of a reference toner image is measured by a toner-density sensor. The amount of change in the density is measured beginning with its initial state by a subtracter, and the amount of compensation for the voltage required for obtaining the optimum image quality is found. By using these amounts of compensation as teaching data, learning is made as to the relationship between the amount of change in the density and the amount of compensation in a neurocomputer. Upon forming an image, the neurocomputer executes operations in accordance with the contents of the learning based on an inputted amount of change in density, and finds an appropriate amount of compensation. With this arrangement, it is possible to constantly obtain copied images having stable image quality, and to lower the cost of image forming apparatuses by reducing the number of parts used for the sensors or other devices.

    摘要翻译： 图像形成装置被设计为根据在成像操作之后从其初始状态发生到其最终状态的感光体上形成的调色剂图像的浓度的变化来补偿施加到曝光灯和充电器的电压 。 更具体地，通过调色剂浓度传感器测量参考调色剂图像的浓度。 通过减法器从其初始状态开始测量密度的变化量，并且找到获得最佳图像质量所需的电压的补偿量。 通过使用这些数量的补偿作为教学数据，就了解了神经计算机中密度变化量与补偿量之间的关系。 在形成图像时，神经计算机根据输入的密度变化量根据学习的内容执行操作，并且找到适当的补偿量。 通过这种布置，可以不断获得具有稳定图像质量的复制图像，并且通过减少用于传感器或其他装置的部件数量来降低图像形成装置的成本。

    Image forming device with residual charge removal control
    3.
    发明授权
    Image forming device with residual charge removal control 失效
    具有残留电荷去除控制的图像形成装置

    公开(公告)号：US5794097A

    公开(公告)日：1998-08-11

    申请号：US577918

    申请日：1995-12-21

    申请人： Kouji Shinkawa ,  Masaaki Ohtsuki ,  Mihoko Okada ,  Mitsuru Tokuyama ,  Hirofumi Sakita ,  Masatsugu Nakamura

    发明人： Kouji Shinkawa ,  Masaaki Ohtsuki ,  Mihoko Okada ,  Mitsuru Tokuyama ,  Hirofumi Sakita ,  Masatsugu Nakamura

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

    CPC分类号： G03G21/08 ,  G03G21/00

    摘要： The present invention relates to image forming device such as copying machines and laser printers, which use an electrophotographic (xerognaphic) process. A simple control method without using any additional complex means can equalize a surface potentional of a light-sensitive drum to keep a light-quality of an image formed even for the first rotation of the light-sensitive drum. A charge-removal prohibiting means, a charge-potentional changing means and a developing bias-potentional changing means are controlled in accordance with an extent of a change of a surface potential of a light-sensitive body, which depends upon a light fatigue and an ambient temperature of the light-sensitive body and/or a pause after a preceding image process.

    摘要翻译： 本发明涉及使用电子照相（隐藏）方法的复印机和激光打印机等图像形成装置。 不使用任何附加的复杂装置的简单的控制方法可以均衡感光鼓的表面电位，以保持即使对于感光鼓的第一次旋转形成的图像的光质。 根据光疲劳的光敏体的表面电位的变化程度来控制电荷消除禁止装置，电荷 - 电位变化装置和显影偏置电位变化装置， 感光体的环境温度和/或在前一图像处理之后的暂停。