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38 条记录 (耗时 0.025 秒)

    Image-forming apparatus and image-forming method
    33.
    发明授权
    Image-forming apparatus and image-forming method 失效
    图像形成装置和图像形成方法

    公开(公告)号：US06934484B2

    公开(公告)日：2005-08-23

    申请号：US10631727

    申请日：2003-08-01

    申请人： Koji Suzuki ,  Mitsuo Aoki ,  Hiroto Higuchi ,  Shinya Nakayama ,  Maiko Kondo ,  Bing Shu ,  Yasushi Koichi ,  Tadashi Kasai ,  Yutaka Takahashi

    发明人： Koji Suzuki ,  Mitsuo Aoki ,  Hiroto Higuchi ,  Shinya Nakayama ,  Maiko Kondo ,  Bing Shu ,  Yasushi Koichi ,  Tadashi Kasai ,  Yutaka Takahashi

    IPC分类号： G03G15/20

    CPC分类号： G03G15/2064

    摘要： In a copier which is an image-forming apparatus comprising a photoconductor 1, a developing apparatus 4, transfer apparatus 5 which transfers a toner image formed on the photoconductor 1 to a transfer material by heat and pressure using a transfer roller 52, and a fixing apparatus which fixes the toner image transferred to the transfer material, on the transfer material, a heater 56, temperature detection apparatus 57 and temperature control apparatus are provided which controls the temperature to within a range of from the glass transition temperature (Tg) to the softening temperature (Tm) of the toner, and lower than the fixing temperature of the fixing apparatus 7.

    摘要翻译： 在作为包括感光体1的图像形成装置的复印机中，显影装置4，使用转印辊52将通过热和压力将形成在感光体1上的调色剂图像转印到转印材料上的转印装置5和固定 提供了将转印到转印材料上的调色剂图像，转印材料，加热器56，温度检测装置57和温度控制装置固定的装置，其将温度控制在从玻璃化转变温度（Tg）到 调色剂的软化温度（Tm）低于定影装置7的定影温度。

    Image density control method
    34.
    发明授权
    Image density control method 失效
    图像浓度控制方法

    公开(公告)号：US5038175A

    公开(公告)日：1991-08-06

    申请号：US530291

    申请日：1990-05-30

    申请人： Norimasa Sohmiya ,  Yasushi Koichi ,  Kazunori Karasawa

    发明人： Norimasa Sohmiya ,  Yasushi Koichi ,  Kazunori Karasawa

    IPC分类号： G03G15/08 ,  G03G15/00

    CPC分类号： G03G15/0849 ,  G03G15/5041

    摘要： A method of controlling the density of images produced by an electrophotographic image forming apparatus to a constant value. A toner density sensor is provided with a first reference level variable in response to the output of an image density sensor, and a second reference level representative of a state associated with the optimum condition of a developer (e.g. immediately after replacement thereof). During usual control, the toner concentration of the developer is detected on the basis of the output of the toner density sensor, and the toner supply to the developer is controlled on the basis of the result of comparison of the detected toner concentration and the first reference level.

    摘要翻译： 一种将由电子照相成像设备产生的图像的浓度控制为恒定值的方法。 调色剂浓度传感器响应于图像浓度传感器的输出而具有第一参考电平变量，以及代表与显影剂的最佳状态相关联的状态的第二参考电平（例如，在其更换之后）。 在通常的控制期间，根据调色剂浓度传感器的输出检测显影剂的调色剂浓度，并且基于检测到的调色剂浓度与第一基准的比较结果来控制对显影剂的调色剂供给 水平。

    Image density control method for an image forming apparatus
    35.
    发明授权
    Image density control method for an image forming apparatus 失效
    图像形成装置的图像浓度控制方法

    公开(公告)号：US5006896A

    公开(公告)日：1991-04-09

    申请号：US431826

    申请日：1989-11-06

    申请人： Yasushi Koichi ,  Norimasa Sohmiya ,  Kazunori Karasawa

    发明人： Yasushi Koichi ,  Norimasa Sohmiya ,  Kazunori Karasawa

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

    CPC分类号： G03G15/0849 ,  G03G15/5041

    摘要： A method applicable to an image forming apparatus which is implemented by an electrophotographic procedure for maintaining that the density of images to be produced by the apparatus is adequate at all times. When the density of a toner image of a reference image or a predetermined pattern sensed by the image density sensor lies in a predetermined adequate range, a sensing level associated with the toner density sensor responsive to the toner density of a developer is not changed. When the density of the toner image does not lie in the adequate range, it is determined that at least the sensing level of the toner density sensing being used at that time has to be changed. Then, whether or not the sensed density of the toner image of the reference image exists in a range in which the image density is controllable is determined. If the sensed density lies in the controllable range, the sensing level of the density sensor being used at that time is suitably changed in response to the sensed density of the toner image. If otherwise, i.e., when the image density sensor is in a fault, toner density control is continued without changing the sensing level of the toner image sensor being used.

    摘要翻译： 适用于通过电子照相程序实现的图像形成装置的方法，用于保持由设备产生的图像的密度始终是足够的。 当参考图像的调色剂图像的浓度或由图像浓度传感器感测到的预定图案的浓度处于预定的适当范围时，响应于显影剂的调色剂浓度的与调色剂浓度传感器相关联的感测水平不改变。 当调色剂图像的浓度不在适当的范围内时，确定至少要在此时使用的调色剂浓度感测的感测电平必须改变。 然后，确定参考图像的调色剂图像的感测密度是否存在于图像浓度可控制的范围内。 如果检测到的密度位于可控范围内，则响应于感测到的调色剂图像的密度，适当地改变当时使用的密度传感器的感测电平。 否则，即当图像浓度传感器处于故障时，调色剂浓度控制继续进行，而不改变所使用的调色剂图像传感器的感测电平。

    Control of toner concentration in a developer
    36.
    发明授权
    Control of toner concentration in a developer 失效
    控制显影剂中的调色剂浓度

    公开(公告)号：US4734737A

    公开(公告)日：1988-03-29

    申请号：US743922

    申请日：1985-06-12

    申请人： Yasushi Koichi

    发明人： Yasushi Koichi

    IPC分类号： G03G15/08

    CPC分类号： G03G15/0849 ,  Y10S222/01

    摘要： A toner concentration control method and system for controlling the toner concentration of a developer which includes toner and carrier for use in electrophotography. A controller, typically including a central processing unit or CPU, first determines a degree of deviation of the current toner concentration from a predetermined reference level and then replenishes the toner to the developer at an optimal replenishing condition which is varyingly set in accordance with the detected degree of deviation. In the preferred embodiment, the flow rate of toner to be supplied and time period of replenishing operation are varyingly set. Besides, the frequency of toner concentration detecting operation is also varyingly set so as to alleviate the load of the CPU.

    摘要翻译： 一种用于控制显影剂的调色剂浓度的调色剂浓度控制方法和系统，其包括用于电子照相术的调色剂和载体。 通常包括中央处理单元或CPU的控制器首先确定当前调色剂浓度与预定参考水平的偏差程度，然后在根据检测到的变化设置的最佳补充条件下将调色剂补充到显影剂 偏离度 在优选实施例中，要供应的调色剂的流量和补充操作的时间段被变化地设定。 此外，调色剂浓度检测操作的频率也被改变，以便减轻CPU的负载。

    Toner supply control method for electrophotographic copier
    37.
    发明授权
    Toner supply control method for electrophotographic copier 失效
    电子照相复印机的调色剂供应控制方法

    公开(公告)号：US4522481A

    公开(公告)日：1985-06-11

    申请号：US548592

    申请日：1983-11-03

    申请人： Chikara Imai ,  Yasushi Koichi

    发明人： Chikara Imai ,  Yasushi Koichi

    IPC分类号： G03G15/00 ,  G03G15/06 ,  G03G15/08

    CPC分类号： G03G15/08 ,  G03G15/065 ,  G03G15/0849 ,  G03G15/5041

    摘要： Light reflected from a reference pattern having a predetermined reflectivity is focused to a photoconductive element to form a latent image thereon. A degree of deposition of a toner on the latent image is sensed by a sensor and the toner supply to a developing unit is controlled in response to an output of the sensor. A fatigue standard is selected taking into account a fatigue characteristic particular to the photoconductor, so that a bias voltage applied to a developing roller in the developing unit is varied in response to the selected fatigue standard.

    摘要翻译： 从具有预定反射率的参考图案反射的光被聚焦到光电导元件上以在其上形成潜像。 通过传感器感测调色剂在潜像上的沉积程度，并且响应于传感器的输出来控制对显影单元的调色剂供应。 考虑到感光体特有的疲劳特性来选择疲劳标准，使得施加到显影单元中的显影辊的偏置电压响应于所选择的疲劳标准而变化。

    Electrostatographic copying apparatus with automatic toner density control
    38.
    发明授权
    Electrostatographic copying apparatus with automatic toner density control 失效
    具有自动调色剂浓度控制的静电复印设备

    公开(公告)号：US4279498A

    公开(公告)日：1981-07-21

    申请号：US103825

    申请日：1979-12-14

    申请人： Tadahiro Eda ,  Susumu Tatsumi ,  Chikara Imai ,  Yasushi Koichi

    发明人： Tadahiro Eda ,  Susumu Tatsumi ,  Chikara Imai ,  Yasushi Koichi

    IPC分类号： G03G15/08 ,  G03G15/00

    CPC分类号： G03G15/0855 ,  G03G15/0849 ,  G03G15/5041

    摘要： A photoconductive drum (32) is charged, radiated with a light image of an original document (34) and developed to produce a toner image. The density of the toner image is sensed and additional toner fed to a developing unit (37) if the sensed density is below a predetermined value. The sensed toner density is compensated for variations in charge potential, light image intensity, electrostatic image potential, developing bias voltage, power supply voltage and/or sensor output so as to be independent of these variables.

    摘要翻译： 感光鼓（32）被充电，用原稿（34）的光图像照射并显影以产生调色剂图像。 如果检测到的密度低于预定值，则检测调色剂图像的浓度并将另外的调色剂供给到显影单元（37）。 感测的调色剂浓度补偿电荷电位，光图像强度，静电图像电位，显影偏压，电源电压和/或传感器输出的变化，以便独立于这些变量。