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    Image forming process and image forming apparatus
    1.
    发明授权
    Image forming process and image forming apparatus 有权
    图像形成处理和图像形成装置

    公开(公告)号：US07177555B2

    公开(公告)日：2007-02-13

    申请号：US10757526

    申请日：2004-01-15

    申请人： Bing Shu ,  Mitsuo Aoki ,  Haruji Mizuishi ,  Mikio Ishibashi ,  Masaru Tanaka ,  Shinji Tamaki ,  Hiroshi Mizusawa ,  Shin Hasegawa

    发明人： Bing Shu ,  Mitsuo Aoki ,  Haruji Mizuishi ,  Mikio Ishibashi ,  Masaru Tanaka ,  Shinji Tamaki ,  Hiroshi Mizusawa ,  Shin Hasegawa

    IPC分类号： G03G15/08

    CPC分类号： G03G15/0877 ,  G03G2215/085

    摘要： The image forming apparatus comprises a photoconductor, a latent electrostatic image forming unit for forming a latent electrostatic image on the photoconductor, a developing unit for developing the latent electrostatic image using a developer comprising a toner to form a visible image, a transfer unit for transferring the visible image to a recording medium, a cleaning unit for removing the developer remained on the photoconductor surface and a developer amount detection unit for detecting developer amount adhering to the photoconductor surface by a reflecting photosensor, wherein the developer stirring time per copy when one copy is made from an original, is 2 to 6 times the developer stirring time per copy when two or more copies are made from the original, wherein the toner comprises at least a binder resin and a wax, and the dynamic frictional coefficient of the toner is 0.15 to 0.45.

    摘要翻译： 图像形成装置包括光电导体，用于在感光体上形成静电潜像的静电潜像形成单元，用于使用包含调色剂的显影剂显影静电潜像以形成可见图像的显影单元，用于转印的转印单元 可见图像到记录介质，用于除去显影剂残留在感光体表面上的清洁单元和显影剂量检测单元，用于通过反射光电传感器检测粘附到感光体表面的显影剂量，其中当一个拷贝 由原件制成，当从原件制造两份或多份复印件时，为每份复印的显影剂搅拌时间的2至6倍，其中调色剂至少包含粘合剂树脂和蜡，并且调色剂的动态摩擦系数为 0.15〜0.45。

    Image forming apparatus with improved toner density control
    7.
    发明授权
    Image forming apparatus with improved toner density control 有权
    具有改进的调色剂浓度控制的图像形成装置

    公开(公告)号：US6148161A

    公开(公告)日：2000-11-14

    申请号：US414857

    申请日：1999-10-12

    申请人： Noriyuki Usui ,  Ken Amemiya ,  Haruji Mizuishi ,  Mayumi Ohori ,  Masaru Tanaka ,  Kenzo Tatsumi ,  Toshitaka Yamaguchi ,  Hideki Zemba ,  Hiroshi Mizusawa

    发明人： Noriyuki Usui ,  Ken Amemiya ,  Haruji Mizuishi ,  Mayumi Ohori ,  Masaru Tanaka ,  Kenzo Tatsumi ,  Toshitaka Yamaguchi ,  Hideki Zemba ,  Hiroshi Mizusawa

    IPC分类号： G03G15/08 ,  G03G15/10

    CPC分类号： G03G15/0822 ,  G03G15/0849 ,  G03G15/0853 ,  G03G15/5041 ,  G03G2215/00042

    摘要： An image forming apparatus includes an image carrier and a developing device to develop a latent image formed on the image carrier by applying two-component developer, including toner, onto the latent image. The developing device includes a developing part containing the two-component developer and a developer stirring device to stir the two-component developer. A toner supplying device supplies toner to the developing part of the developing device, and a toner density detection device detects a toner density of the two-component developer in the developing device. A toner control device calculates a difference between an output value VT of the toner density detection device and a criterion value VTref for controlling the toner density of the two-component developer and controls the toner supplying device based upon the difference. An image density detection device detects an image density of a criterion image formed on the image carrier, and a criterion value correcting device corrects the criterion value VTref based upon an output value of the criterion image density detection device. A decision as to whether to stir the developer in the developing device with the developer stirring device is made based upon a difference between the criterion value VTref and the output value VT from the toner density detection device and an output value of the criterion image density detection device when an image forming operation is started.

    摘要翻译： 图像形成装置包括图像载体和显影装置，以通过将包括调色剂的双组分显影剂施加到潜像上来显影形成在图像载体上的潜像。 显影装置包括含有双组分显影剂的显影部分和用于搅拌双组分显影剂的显影剂搅拌装置。 调色剂供应装置向显影装置的显影部分供应调色剂，并且调色剂浓度检测装置检测显影装置中的双组分显影剂的调色剂浓度。 调色剂控制装置计算调色剂浓度检测装置的输出值VT与用于控制双组分显影剂的调色剂浓度的标准值VTref之间的差异，并基于该差异来控制调色剂供给装置。 图像浓度检测装置检测形成在图像载体上的标准图像的图像浓度，并且基准值校正装置基于标准图像浓度检测装置的输出值来校正标准值VTref。 基于标准值VTref和来自调色剂浓度检测装置的输出值VT与标准图像浓度检测的输出值之间的差异，决定是否用显影剂搅拌装置搅拌显影装置中的显影剂 当图像形成操作开始时的装置。

    Electrophotographic image forming apparatus
    8.
    发明授权
    Electrophotographic image forming apparatus 有权
    电子照相成像设备

    公开(公告)号：US6085062A

    公开(公告)日：2000-07-04

    申请号：US289394

    申请日：1999-04-12

    申请人： Haruji Mizuishi ,  Ken Amemiya ,  Hiroshi Mizusawa ,  Hiroyuki Ohkaji ,  Mayumi Ohori ,  Masaru Tanaka ,  Hideki Zenba ,  Kenzou Tatsumi

    发明人： Haruji Mizuishi ,  Ken Amemiya ,  Hiroshi Mizusawa ,  Hiroyuki Ohkaji ,  Mayumi Ohori ,  Masaru Tanaka ,  Hideki Zenba ,  Kenzou Tatsumi

    IPC分类号： G03G15/08 ,  G03G21/10

    CPC分类号： G03G21/105

    摘要： An electrophotographic image forming apparatus is disclosed which is provided within a cleaning device with a rotative conveying member for conveying a residual toner after removal thereof from a photoreceptor up to an inlet of a toner dropping path while rotating. Within the toner dropping path is disposed a toner bridge preventing member for preventing the formation of a toner bridge in the same path. The toner bridge preventing member is driven by the rotative conveying member so as to reciprocate substantially in parallel with the toner dropping direction.

    摘要翻译： 公开了一种电子照相图像形成装置，其设置在具有旋转输送构件的清洁装置内，用于在将残留调色剂从感光体转移到调色剂滴下路径的入口之后将残留调色剂输送到转盘。 在调色剂滴下路径内设置有用于防止在相同路径中形成调色剂桥的调色剂阻止构件。 调色剂桥防止构件由旋转传送构件驱动，以便基本上与调色剂滴下方向平行地往复运动。

    Image-forming apparatus having a seal for a developer and a method for detecting a removal of the seal
    9.
    发明授权
    Image-forming apparatus having a seal for a developer and a method for detecting a removal of the seal 有权
    具有用于显影剂的密封件的图像形成装置和用于检测密封件的移除的方法

    公开(公告)号：US06266501B1

    公开(公告)日：2001-07-24

    申请号：US09482961

    申请日：2000-01-14

    申请人： Haruji Mizuishi ,  Masaru Tanaka ,  Kenzo Tatsumi ,  Ken Amemiya ,  Toshitaka Yamaguchi ,  Hideki Zemba ,  Noriyuki Usui ,  Mayumi Ohori ,  Hiroshi Mizusawa

    发明人： Haruji Mizuishi ,  Masaru Tanaka ,  Kenzo Tatsumi ,  Ken Amemiya ,  Toshitaka Yamaguchi ,  Hideki Zemba ,  Noriyuki Usui ,  Mayumi Ohori ,  Hiroshi Mizusawa

    IPC分类号： G03G1508

    CPC分类号： G03G15/0882 ,  G03G15/0849 ,  G03G2215/0687 ,  G03G2215/088

    摘要： An image-forming apparatus includes an image-bearing device that holds an electrostatic latent image and a toner image thereon, and a developer container that contains and agitates a developer having at least a toner. The image-forming apparatus also includes a developer-bearing device that carries the developer to develop the electrostatic latent image on the image-bearing device, and a density sensor that detects an optical density of a surface of the image-bearing device and a toner image on the image-bearing device. Further, the image-forming apparatus includes a developer seal that seals the developer in the developer container, wherein the seal is disposed between the developer container and the developer-bearing device, and an actuator configured to actuate the developer container and the developer-bearing device. The image-forming apparatus still further includes a control device that determines whether the developer seal is removed according to information on the optical density of the toner image output by the density sensor.

    摘要翻译： 图像形成装置包括在其上保持静电潜像和调色剂图像的图像承载装置和包含并搅拌至少具有调色剂的显影剂的显影剂容器。 图像形成装置还包括承载显影剂以显影图像承载装置上的静电潜像的显影剂承载装置和检测图像承载装置的表面的光密度的浓度传感器和调色剂 图像承载设备上的图像。 此外，图像形成装置包括密封显影剂容器中的显影剂的显影剂密封件，其中密封件设置在显影剂容器和显影剂承载装置之间，致动器构造成致动显影剂容器和显影剂承载 设备。 图像形成装置还包括控制装置，其根据由密度传感器输出的调色剂图像的光密度的信息来确定是否去除显影剂密封。

    Image forming apparatus and method for controlling charging and developing bias voltage
    10.
    发明授权
    Image forming apparatus and method for controlling charging and developing bias voltage 有权
    用于控制充电和显影偏压的图像形成装置和方法

    公开(公告)号：US6128449A

    公开(公告)日：2000-10-03

    申请号：US166146

    申请日：1998-10-05

    申请人： Hideki Zenba ,  Masaru Tanaka ,  Haruji Mizuishi ,  Hiroyuki Okaji ,  Kenzo Tatsumi ,  Hiroshi Mizusawa ,  Ken Amemiya ,  Mayumi Ohori

    发明人： Hideki Zenba ,  Masaru Tanaka ,  Haruji Mizuishi ,  Hiroyuki Okaji ,  Kenzo Tatsumi ,  Hiroshi Mizusawa ,  Ken Amemiya ,  Mayumi Ohori

    IPC分类号： G03G15/02 ,  G03G15/06 ,  G03G15/08

    CPC分类号： G03G15/0216 ,  G03G15/065

    摘要： An image forming apparatus includes a charging element configured to apply a charging voltage to an image bearing member to charge the image bearing member, an optical writing device configured to form a latent image on a charged surface of the image bearing member charged by the charging element, a developer bearing member which carries developer including toner having a same polarity as that of the charging voltage to the image bearing member and which applies the toner to the latent image on the image bearing member to form a toner image when a developing bias voltage is applied thereto, and a control device which controls application of the charging voltage by the charging element and application of the developing bias voltage to the developer bearing member so as to increase an absolute value of the charging voltage to the image bearing member and an absolute value of the developing bias voltage to the developer bearing member to a predetermined value in a plurality of steps, respectively and wherein the following relation holds for each of the plurality of steps:190(V).ltoreq.(V.sub.DC -V.sub.D).ltoreq.375(V)where V.sub.DC represents a mean value per unit time of the developing bias and V.sub.D represents a charged potential of the image bearing member.

    摘要翻译： 一种图像形成装置，包括充电元件，其被配置为向图像承载部件施加充电电压以对图像承载部件充电;光学写入装置，被配置为在由充电元件充电的图像承载部件的充电表面上形成潜像 ，显影剂承载构件，其将显影剂包括具有与充电电压相同的极性的调色剂到图像承载部件，并且当显影偏压为（显影偏压）时，将调色剂施加到图像承载部件上的潜像以形成调色剂图像 以及控制装置，其控制由充电元件施加充电电压并将显影偏压施加到显影剂承载部件，以便增加对图像承载部件的充电电压的绝对值和绝对值 显影偏压到显影剂承载构件的多个步骤中的预定值， 其中VDC代表显影偏压每单位时间的平均值，VD表示（VDC-VD）≤350（V） 图像承载部件的带电电位。