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    Image forming apparatus and method for obtaining appropriate toner density
    1.
    发明授权
    Image forming apparatus and method for obtaining appropriate toner density 失效
    用于获得适当调色剂密度的图像形成装置和方法

    公开(公告)号：US06055388A

    公开(公告)日：2000-04-25

    申请号：US54510

    申请日：1998-04-03

    申请人： Shigeru Watanabe ,  Masaru Tanaka ,  Haruji Mizuishi ,  Kenzou Tatsumi ,  Toshitaka Yamaguchi ,  Takeo Suda ,  Hiroshi Yoshinaga ,  Ken Amemiya ,  Mayumi Oh-Hori

    发明人： Shigeru Watanabe ,  Masaru Tanaka ,  Haruji Mizuishi ,  Kenzou Tatsumi ,  Toshitaka Yamaguchi ,  Takeo Suda ,  Hiroshi Yoshinaga ,  Ken Amemiya ,  Mayumi Oh-Hori

    IPC分类号： G03G15/08 ,  G03G15/10

    CPC分类号： G03G15/0849 ,  G03G15/0853 ,  G03G15/0891

    摘要： An image forming apparatus includes an image bearing member, a latent image forming device that forms a latent image on the image bearing member, a developing device that develops latent image on said image bearing member to a toner image with a two-component developer, and a toner density detecting device that detects toner density of the two-component developer in which the toner image is formed and outputted as a visible image onto a transfer member. A control device is provided for agitating the developer for a predetermined time period during an initial setting is performed for the developer, detecting a toner density of said developer after the predetermined agitation, and performing an abnormal process when a result of the detection is out of the predetermined range. A corresponding method recovers from a deterioration of an amount of charge of the toner and decreased bulk of the developer, and includes the steps of detecting a developer amount with an unused-state detection switch, detecting an output value of a toner density detecting sensor, agitating the developer, measuring an agitating time period, stopping the agitating operation indicating warning, and indicating error message.

    摘要翻译： 图像形成装置包括图像承载部件，在图像承载部件上形成潜像的潜像形成装置，利用双组分显影剂将所述图像承载部件上的潜像显影成调色剂图像的显影装置，以及 调色剂浓度检测装置，其检测其中调色剂图像形成并作为可见图像输出到转印部件上的双组分显影剂的调色剂浓度。 提供了一种控制装置，用于在对显影剂进行初始设定期间的预定时间段内搅拌显影剂，在预定搅拌之后检测所述显影剂的调色剂浓度，并且当检测结果不合格时执行异常处理 预定范围。 相应的方法从调色剂的电荷量的劣化和显影剂的体积减少而恢复，并且包括以下步骤：用未使用状态的检测开关检测显影剂量，检测调色剂浓度检测传感器的输出值， 搅拌显影剂，测量搅拌时间，停止搅拌操作指示警告，并指示错误信息。

    Image forming method and apparatus for controlling amount of supplied toner or agitating time
    2.
    发明授权
    Image forming method and apparatus for controlling amount of supplied toner or agitating time 失效
    用于控制供应调色剂量或搅拌时间的图像形成方法和装置

    公开(公告)号：US6006050A

    公开(公告)日：1999-12-21

    申请号：US961515

    申请日：1997-10-30

    申请人： Shigeru Watanabe ,  Masaru Tanaka ,  Haruji Mizuishi ,  Toshitaka Yamaguchi ,  Kenzou Tatsumi ,  Hiroshi Yoshinaga ,  Takeo Suda ,  Ken Amemiya ,  Mayumi Oh-Hori

    发明人： Shigeru Watanabe ,  Masaru Tanaka ,  Haruji Mizuishi ,  Toshitaka Yamaguchi ,  Kenzou Tatsumi ,  Hiroshi Yoshinaga ,  Takeo Suda ,  Ken Amemiya ,  Mayumi Oh-Hori

    IPC分类号： G03G21/14 ,  G03G15/08

    CPC分类号： G03G15/0822

    摘要： An image forming apparatus including an image bearing member, a latent image forming device which forms a latent image on the image bearing member, a developing device which develops the latent image using a two-component developer including a toner and a carrier and a toner supplying device which supplies toner into the developing device. A developer agitating device agitates developer in the developing device and a toner-density detecting device detects a toner density of developer in the developing device. A toner-density control device controls the toner density by operating the toner supplying device on the basis of a detected result according to the toner-density detecting device. A memory device stores resultant value of the toner density detected by the toner-density detecting device during image forming operations. The toner-density detecting device detects the toner density in a warm-up operation before starting the image forming operation by the image forming apparatus. The toner-density control device changes an amount of the toner supply which is supplied by the toner supplying device after starting the image forming operation according to a result of a comparison of the detected toner density in the warm-up operation with the detected result stored in the memory device. The toner-density control device changes an amount of the toner supply which is supplied by the toner supplying device after starting the image forming operation according to the resultant value of comparison of a result of a detection.

    摘要翻译： 一种图像形成装置，包括图像承载部件，在图像承载部件上形成潜像的潜像形成装置，使用包括调色剂和载体的双组分显影剂和调色剂供给来显影潜像的显影装置 将调色剂供给到显影装置中的装置。 显影剂搅拌装置搅拌显影装置中的显影剂，调色剂浓度检测装置检测显影装置中的显影剂的调色剂浓度。 调色剂浓度控制装置基于根据调色剂浓度检测装置的检测结果操作调色剂供应装置来控制调色剂浓度。 存储装置在图像形成操作期间存储由调色剂浓度检测装置检测的调色剂浓度的结果值。 调色剂浓度检测装置在图像形成装置开始图像形成操作之前检测预热操作中的调色剂浓度。 调色剂浓度控制装置根据检测到的预热操作中的调色剂浓度与检测结果的比较结果，改变在开始成像操作之后由调色剂供应装置供应的调色剂供应量 在存储设备中。 调色剂浓度控制装置根据检测结果的比较的结果值，改变在开始图像形成操作之后由调色剂供应装置供应的调色剂供应量。

    Image forming device with improved mixing of circulated developer with replensihed toner
    4.
    发明授权
    Image forming device with improved mixing of circulated developer with replensihed toner 失效
    图像形成装置，其具有改进的循环显影剂与补充调色剂的混合

    公开(公告)号：US5887224A

    公开(公告)日：1999-03-23

    申请号：US862695

    申请日：1997-05-23

    申请人： Haruji Mizuishi ,  Masaru Tanaka ,  Shigeru Watanabe ,  Kenzo Tatsumi ,  Toshitaka Yamaguchi ,  Takeo Suda ,  Hiroshi Yoshinaga ,  Ken Amemiya ,  Mayumi Yoshida

    发明人： Haruji Mizuishi ,  Masaru Tanaka ,  Shigeru Watanabe ,  Kenzo Tatsumi ,  Toshitaka Yamaguchi ,  Takeo Suda ,  Hiroshi Yoshinaga ,  Ken Amemiya ,  Mayumi Yoshida

    IPC分类号： G03G15/08 ,  G03G21/10

    CPC分类号： G03G15/0822 ,  G03G21/105 ,  G03G2215/0822

    摘要： There is provided an image forming device capable of preventing smudges on the background of an image due to excess toner replenishment caused by a failure in stirring developer and toner enough to charge the toner or scattering of replenished toner without being charged. A toner conveying member for conveying replenished toner from a toner replenishing portion through a toner replenishing port to a developer stirring and conveying member is constructed by a screw member unitarily formed with the developer stirring and conveying member. The screw member has a spiral conveying fin capable of conveying the replenished toner at relatively high speed. The replenished toner is delivered to a toner replenishing portion provided in the upstream of a developer receiving portion of the screw member.

    摘要翻译： 提供了一种图像形成装置，其能够防止由于搅拌显影剂的故障引起的多余的调色剂补充以及足以使调色剂充电或补充调色剂的飞散而不被充电而导致的图像背景上的污迹。 通过与显影剂搅拌和传送部件一体地形成的螺钉部件构成用于将补充调色剂从调色剂补充部分通过调色剂补充口输送到显影剂搅拌和传送部件的调色剂传送部件。 螺杆构件具有螺旋输送翅片，能够以相对高的速度输送补充的调色剂。 补充的调色剂被输送到设置在螺杆构件的显影剂接收部分的上游的调色剂补充部分。