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    Image adjusting apparatus having a controlled the voltage applied to the light source thereof
    1.
    发明授权
    Image adjusting apparatus having a controlled the voltage applied to the light source thereof 失效
    具有控制施加到其光源的电压的图像调整装置

    公开(公告)号：US5233391A

    公开(公告)日：1993-08-03

    申请号：US889727

    申请日：1992-05-28

    申请人： Kazuyuki Ohnishi ,  Yasutaka Maeda ,  Hiroshi Kawamoto

    发明人： Kazuyuki Ohnishi ,  Yasutaka Maeda ,  Hiroshi Kawamoto

    IPC分类号： G03G15/00 ,  G03G15/01 ,  G03G15/043 ,  G03G15/06 ,  G03G15/08 ,  G03G21/00

    CPC分类号： G03G15/5041 ,  G03G15/043

    摘要： An image adjusting apparatus being provided in a copying machine capable of performing a copy of an original by using a photosensitive body in two or more copying modes, includes a unit for sensing a toner density of an image formed on the photosensitive body, a unit for deriving a function in accordance with each of the two or more copying modes if a control voltage influencing the toner density is changed, and a unit for setting the control voltage to be a voltage value obtained based on a predetermined reference toner density and the function derived by the deriving unit. The function stands for a relation between the changed control voltage and the toner density sensed by the sensing unit.

    摘要翻译： 一种图像调整装置，其设置在能够通过使用感光体以两种或更多种复印模式执行原稿复印的复印机中，包括用于感测形成在感光体上的图像的调色剂浓度的单元， 如果改变影响调色剂浓度的控制电压，则根据两个或更多个复印模式中的每一个导出功能，以及用于将控制电压设置为基于预定的参考调色剂浓度获得的电压值的单元，并且导出的函数 由导出单元。 该功能代表改变的控制电压和由感测单元感测的调色剂浓度之间的关系。

    Image forming apparatus having an image-quality correction function
    4.
    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。

    Color balance adjusting apparatus for full-color copier
    5.
    发明授权
    Color balance adjusting apparatus for full-color copier 失效
    全彩复印机色平衡调节装置

    公开(公告)号：US5343282A

    公开(公告)日：1994-08-30

    申请号：US99739

    申请日：1993-07-30

    申请人： Yuichi Kazaki ,  Yasutaka Maeda ,  Hiroshi Kawamoto ,  Hideyuki Nishimura ,  Katsuhiro Nagayama

    发明人： Yuichi Kazaki ,  Yasutaka Maeda ,  Hiroshi Kawamoto ,  Hideyuki Nishimura ,  Katsuhiro Nagayama

    IPC分类号： G03G15/00 ,  G03G15/01 ,  G03G15/04 ,  G03G15/043 ,  G03G15/08 ,  G03G21/00

    CPC分类号： G03G15/011 ,  G03G15/01

    摘要： A color balance adjusting apparatus is used for a full color copier in which an original image is illuminated by a light source; the illuminated image is exposed onto a photoreceptor to form electrostatic latent images corresponding to first, second and third colors for creating a color image; and each of the formed electrostatic latent images is developed into a visualized toner image. The color balance adjusting apparatus includes an infrared sensor for detecting toner density of the toner image formed with a toner having any one color of the first, second and third colors. The apparatus further includes automatic adjustment means which determines a relation of light intensity to toner density detected for one color by varying light intensity of said light source, and which determines optimal light intensity for the other two colors as predetermined functions of obtained optimal light intensity. Using this apparatus, automatic adjustment of the color balance for each copy mode can be effected in a short time with lesser consumption of electricity and supplies.

    摘要翻译： 色彩平衡调节装置用于其中原始图像被光源照射的全色复印机; 将照明图像曝光到感光体上以形成对应于第一，第二和第三颜色的静电潜像，以产生彩色图像; 并且每个形成的静电潜像被显影成可视化的调色剂图像。 色平衡调节装置包括红外传感器，用于检测由具有第一，第二和第三颜色的任何一种颜色的调色剂形成的调色剂图像的调色剂浓度。 该装置还包括自动调节装置，其通过改变所述光源的光强度来确定针对一种颜色检测的光强度与调色剂浓度的关系，并且确定其它两种颜色的最佳光强度作为获得的最佳光强度的预定函数。 使用该装置，可以在较短的时间内对每种复印模式的颜色平衡进行自动调整，同时电力和耗材的消耗较少。

    Developing device having a reduced width in the horizontal direction
    6.
    发明授权
    Developing device having a reduced width in the horizontal direction 有权
    显影装置在水平方向上具有减小的宽度

    公开(公告)号：US6035168A

    公开(公告)日：2000-03-07

    申请号：US223370

    申请日：1998-12-30

    申请人： Jitsuo Masuda ,  Hiroshi Kawamoto ,  Makoto Uehara ,  Yasutaka Maeda ,  Takeshi Wakabayashi ,  Takahiko Kimura ,  Tao Ou ,  Naotaka Funayama ,  Toshio Nishino ,  Yasuyuki Ishiguro ,  Syouichi Fujita ,  Hirofumi Sakita

    发明人： Jitsuo Masuda ,  Hiroshi Kawamoto ,  Makoto Uehara ,  Yasutaka Maeda ,  Takeshi Wakabayashi ,  Takahiko Kimura ,  Tao Ou ,  Naotaka Funayama ,  Toshio Nishino ,  Yasuyuki Ishiguro ,  Syouichi Fujita ,  Hirofumi Sakita

    IPC分类号： G03G15/08

    CPC分类号： G03G15/0896 ,  G03G15/0822

    摘要： A developing device having a reduced size in the horizontal direction and in which a developing agent is transported with stirring along a circulating route inside a developing tank to effectively mix newly added toner therewith and stir the mixture. A developing tank for storing developing agent therein is horizontally divided with a partition member thereby providing an upper chamber and a lower chamber. A developer roller and a stirring roller are disposed in the lower chamber. Two screw rollers are disposed in the upper chamber. An inlet opening is formed between an end of the partition member and a regulating member for restricting a layer if the developing agent adsorbed to the developing roller. A developing agent removed by the restricting member is fed through an inlet opening to the screw rollers in the upper chamber. The developing agent is mixed with fresh toner supplied through a supply inlet and transported with being stirred by the screw roller in its axial direction. Then, the developing agent is transferred to the screw roller disposed parallel to the screw roller and it is further transported and returned to the stirring roller in the lower chamber through a return port provided opposite to the screw roller. The compact construction of the developing device is realized by arranging screw rollers for stirring and transporting toner in the upper chamber.

    摘要翻译： 一种显影装置，其在水平方向上具有减小的尺寸，并且其中显影剂沿显影槽内的循环路线搅拌输送，以有效地将新添加的调色剂混合并搅拌混合物。 用于在其中存储显影剂的显影槽被水平分隔成分隔件，从而提供上室和下室。 显影辊和搅拌辊设置在下室中。 两个螺杆辊设置在上部腔室中。 如果显影剂吸附到显影辊上，则在分隔部件的端部和限制部件之间形成入口。 通过限制构件去除的显影剂通过入口开口被供给到上室中的螺杆辊。 将显影剂与通过供应入口供应的新鲜调色剂混合，并在螺杆辊沿其轴向方向搅拌下运输。 然后，将显影剂转移到与螺旋辊平行设置的螺旋辊上，并且通过与螺旋辊相对设置的返回端口进一步输送并返回到下室中的搅拌辊。 显影装置的紧凑结构通过布置用于搅拌和输送上室中的调色剂的螺旋辊来实现。

    Image forming apparatus with half-tone density control
    8.
    发明授权
    Image forming apparatus with half-tone density control 有权
    具有半色调密度控制的图像形成装置

    公开(公告)号：US06215968B1

    公开(公告)日：2001-04-10

    申请号：US09545721

    申请日：2000-04-07

    申请人： Makoto Uehara ,  Toshihiro Ohta ,  Yasutaka Maeda ,  Takashi Kitagawa ,  Katsuhiro Nagayama ,  Shouji Tomita ,  Kaori Dakeshita ,  Daisaku Imaizumi

    发明人： Makoto Uehara ,  Toshihiro Ohta ,  Yasutaka Maeda ,  Takashi Kitagawa ,  Katsuhiro Nagayama ,  Shouji Tomita ,  Kaori Dakeshita ,  Daisaku Imaizumi

    IPC分类号： G03G1500

    CPC分类号： H04N1/4078

    摘要： A high density detecting toner pattern is formed on a photosensitive body and a high density correction is effected by comparing a value detected by a reflection sensor with a high density reference value so as to maintain an image density at a specific level. An image density correcting section adopts a result of the preceding high density correction as the high density reference value, and compares the same with a result of a current high density correction. The image density correcting section effects the half-tone density correction only when a difference reaches or exceeds a preset difference reference value by forming a half-tone density detecting toner pattern on the photosensitive body and comparing a value detected by the reflection sensor with a half-tone reference value. Consequently, it has become possible to provide an image forming apparatus which can maintain a density output of an entire image at a specific level for any kind of images including solid, line, and half-tone, etc. while shortening a time required for the density correction and reducing a quantity of toner consumed for the density correction.

    摘要翻译： 在感光体上形成高密度检测调色剂图案，并且通过将由反射传感器检测的值与高密度参考值进行比较来实现高密度校正，以将图像浓度保持在特定水平。 图像浓度校正部分采用先前的高浓度校正的结果作为高密度参考值，并将其与当前高密度校正的结果进行比较。 图像浓度校正部仅通过在感光体上形成半色调浓度检测调色剂图案而将差分达到或超过预设差值基准值来实现半色调浓度校正，并将反射传感器检测到的值与半 参考值。 因此，可以提供一种图像形成装置，其可以将包括实线，线条和半色调等的任何种类的图像的整个图像的浓度输出保持在特定的水平，同时缩短所需的时间 密度校正和减少密度校正所消耗的调色剂量。

    Image forming apparatus including image quality compensation means
    9.
    发明授权
    Image forming apparatus including image quality compensation means 失效
    包括图像质量补偿装置的图像形成装置

    公开(公告)号：US5987272A

    公开(公告)日：1999-11-16

    申请号：US10293

    申请日：1998-01-21

    申请人： Yasutaka Maeda ,  Toshihiro Ohta ,  Katsuhiro Nagayama

    发明人： Yasutaka Maeda ,  Toshihiro Ohta ,  Katsuhiro Nagayama

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

    CPC分类号： G03G15/5041 ,  G03G15/0173 ,  G03G15/0849 ,  G03G15/0853 ,  G03G15/5058 ,  G03G2215/00059

    摘要： A test patch image is formed and the density thereof is detected to maintain the image quality at a constant level. One of the image forming conditions, for example, the developing bias voltage of the developing unit inside the image forming apparatus that serves as a density controller, and is controlled in accordance with the detection result. Here, a humidity sensor for detecting the environmental change, that is, the humidity, is provided inside the apparatus, and the reference value of the toner mixing ratio is changed and corrected while the developing unit is operating when the humidity sensor detects a change in humidity. However, the toner mixing ratio is maintained and neither changed nor corrected when the density of the test patch image remains at the same level, so that the developing bias voltage is not corrected. Consequently, the correction of the toner mixing ratio is neither changed nor corrected in response to the change in humidity alone, thereby making it possible to maintain a stable image quality state.

    摘要翻译： 形成测试贴片图像，并检测其密度以将图像质量保持在恒定水平。 图像形成条件之一，例如，用作密度控制器的图像形成装置内的显影单元的显影偏压，并根据检测结果进行控制。 这里，在设备内部设置用于检测环境变化的湿度传感器，即湿度，并且当湿度传感器检测到变化时，显影单元正在操作时，改变和校正调色剂混合比的参考值 湿度。 然而，当调色剂图像的浓度保持在相同水平时，保持调色剂混合比并且既不改变也不修正，从而不校正显影偏压。 因此，根据单独的湿度变化，调色剂混合比的校正既不改变也不修正，从而可以保持稳定的图像质量状态。

    Image formation apparatus and image formation method
    10.
    发明授权
    Image formation apparatus and image formation method 失效
    图像形成装置和图像形成方法

    公开(公告)号：US5915074A

    公开(公告)日：1999-06-22

    申请号：US856321

    申请日：1997-05-14

    申请人： Yoichi Shimazawa ,  Hideo Matsuda ,  Yasutaka Maeda ,  Shunju Anzai ,  Osamu Fujimoto ,  Hidekazu Sakagami ,  Kazumi Irie

    发明人： Yoichi Shimazawa ,  Hideo Matsuda ,  Yasutaka Maeda ,  Shunju Anzai ,  Osamu Fujimoto ,  Hidekazu Sakagami ,  Kazumi Irie

    IPC分类号： G03G15/00 ,  G03G15/01 ,  G03G15/16 ,  G06K15/12 ,  H04N1/23 ,  G06K15/00

    CPC分类号： G06K15/129 ,  G03G15/0184 ,  G03G2215/0106

    摘要： Developing devices are provided adjacent to a light sensitive element. An intermediate transfer drum is provided adjacent to the light sensitive elements. After exposure of the light sensitive element, a first color or third color image is formed on the light sensitive element. On the other hand, after exposure of the light sensitive element, a second color or fourth color image can be formed on the light sensitive element. The first color image is transferred from the transfer unit to the intermediate transfer drum at the first transfer portion, and the second color image is transferred from the transfer unit at the second transfer portion so as to be superimposed on the first color image. Similarly, the third color image is transferred so as to be superimposed on the second image and the fourth color image is transferred so as to be superimposed on the third color image to the intermediate transfer drum. Accordingly, the first to fourth color images are superimposed. Thereby, downsizing of the device and cost reduction are achieved and image formation speed is facilitated.

    摘要翻译： 显影装置设置在与光敏元件相邻的位置。 中间转印鼓设置成与光敏元件相邻。 在感光元件曝光之后，在感光元件上形成第一彩色或第三彩色图像。 另一方面，在感光元件曝光之后，可以在光敏元件上形成第二彩色或第四彩色图像。 第一彩色图像在第一转印部分从转印单元转印到中间转印鼓，并且第二彩色图像在第二转印部分从转印单元转印以便叠加在第一彩色图像上。 类似地，第三彩色图像被转印以叠加在第二图像上，并且第四彩色图像被转印以便叠加在第三彩色图像上至中间转印鼓。 因此，叠加第一至第四彩色图像。 从而，实现了装置的小型化和成本降低，并且促进了图像形成速度。