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    Electrophotographic copying process and apparatus having means for monitoring a fatigue recovery time
    1.
    发明授权
    Electrophotographic copying process and apparatus having means for monitoring a fatigue recovery time 失效
    电子照相复印工艺和具有用于监测疲劳恢复时间的装置的设备

    公开(公告)号：US4474455A

    公开(公告)日：1984-10-02

    申请号：US396364

    申请日：1982-07-08

    申请人： Kohji Hirakura ,  Chikara Imai ,  Kazuhiro Kimura

    发明人： Kohji Hirakura ,  Chikara Imai ,  Kazuhiro Kimura

    IPC分类号： G03G21/00

    CPC分类号： G03G21/00

    摘要： An electrophotographic copying process and apparatus fast in operation and capable of making reproduced images having substantially the same image density is provided. In accordance with the present invention, pre-exposure is carried out only when a photosensitive member is to be used for image formation after elapsing a predetermined time period during which the photosensitive member has been kept unused. The present invention is fast in operation and minimal in power consumption because the pre-exposure is skipped when unnecessary. However, since pre-exposure is effected when necessary, the image density may be maintained at constant.

    摘要翻译： 提供了快速操作并能够制作具有基本上相同图像浓度的再现图像的电子照相复印处理和装置。 根据本发明，只有当光敏元件在光敏元件保持未使用的预定时间段之后经过图像形成时，才进行预曝光。 本发明在操作上是快速的，并且功耗最小，因为在不必要的情况下跳过预曝光。 然而，由于在必要时进行预曝光，因此可以将图像浓度保持恒定。

    Image density control method for an image forming apparatus
    5.
    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：US5258248A

    公开(公告)日：1993-11-02

    申请号：US865660

    申请日：1992-04-07

    申请人： Masaki Tokuhashi ,  Moriyuki Koike ,  Wataru Yasuda ,  Kouji Ishigaki ,  Takashi Bisaiji ,  Chikara Imai

    发明人： Masaki Tokuhashi ,  Moriyuki Koike ,  Wataru Yasuda ,  Kouji Ishigaki ,  Takashi Bisaiji ,  Chikara Imai

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

    CPC分类号： G03G15/065 ,  G03G15/5041 ,  G03G2215/00042

    摘要： An image density control method for an image forming apparatus of the type forming a latent image of a document image on a photoconductive element and developing the latent image by a toner to produce a toner image by an electrophotographic procedure. A background pattern whose density is substantially the same as the background density of a document, i.e., a light pattern is illuminated to electrostatically form a latent image thereof on the photoconductive element. The latent image is developed by the toner, and the density of the resultant toner image is optically sensed by an image density sensor. A change in background density due to contamination or an increase in background potential, for example, is detected. Based on the detected change in background density, a quantity of light for imagewise exposure or similar factor dictating the developing ability is corrected, i.e., it is controlled to the light side if the density has been shifted to the dark side. The detection of the background density and the control for correction are effected only when the charge retaining ability of the photoconductive element is stable.

    摘要翻译： 一种图像形成装置，用于在感光体上形成原稿图像的潜像并通过调色剂显影潜像的图像形成装置，以通过电子照相程序产生调色剂图像。 背景图案的密度基本上与原稿的背景密度相同，即光图案被照亮以在感光体上静电地形成潜像。 潜像由调色剂显影，并且所得到的调色剂图像的浓度由图像浓度传感器光学感测。 检测到例如由于污染引起的背景浓度的变化或背景潜力的增加。 基于检测到的背景浓度的变化，校正用于图像曝光的光量或指示显影能力的类似因素，即如果密度已经向黑色侧移动，则将其控制到光侧。 仅当光电导元件的电荷保持能力稳定时才进行背景浓度的检测和校正控制。

    Method of removing a film from an image carrier
    6.
    发明授权
    Method of removing a film from an image carrier 失效
    从图像载体上去除胶片的方法

    公开(公告)号：US4975748A

    公开(公告)日：1990-12-04

    申请号：US459315

    申请日：1989-12-29

    申请人： Nobuyuki Koinuma ,  Chikara Imai ,  Yoshio Takamiya ,  Kazuyuki Sugihara ,  Yuji Sawai

    发明人： Nobuyuki Koinuma ,  Chikara Imai ,  Yoshio Takamiya ,  Kazuyuki Sugihara ,  Yuji Sawai

    IPC分类号： G03G21/00

    CPC分类号： G03G21/0005 ,  G03G21/0047 ,  G03G2221/0005

    摘要： A method of removing a film which undesirably forms on a photoconductive element or similar image carrier of an image forming apparatus such as an electrophotographic copier, printer or facsimile machine. The method is implemented by a cleaning device having a cleaning sleeve which removed toner particles remaining on the image carrier after image transfer. In a film removing mode which is executed when an image forming mode for forming a toner image on the image carrier is not under way, the cleaning sleeve is rotated at a lower speed than in an ordinary cleaning mode so as to feed a greater amount of cleaning agent to a cleaning region. The rotation speed of image carrier and that of the cleaning sleeve are controlled in such a manner as to feed a predetermined adequate amount of cleaning agent for the removal of a film to the cleaning region at all times.

    摘要翻译： 去除在电子照相复印机，打印机或传真机等图像形成装置的感光体或类似图像载体上不希望形成的膜的方法。 该方法由具有清洁套筒的清洁装置实现，该清洁套筒在图像转印之后除去残留在图像载体上的调色剂颗粒。 在用于在图像载体上形成调色剂图像的图像形成模式未进行的情况下执行的胶片去除模式中，清洁套筒以比普通清洁模式更低的速度旋转，以便馈送更大量的 清洁剂到清洁区域。 控制图像载体和清洁套筒的旋转速度，以便始终向清洁区域输送预定量的清洁剂以除去膜。

    Process of exposing photosensitive member
    7.
    发明授权
    Process of exposing photosensitive member 失效
    曝光感光件的工艺

    公开(公告)号：US4487501A

    公开(公告)日：1984-12-11

    申请号：US384061

    申请日：1982-06-01

    申请人： Shigeru Suzuki ,  Yutaka Koizumi ,  Nobuyuki Yanagawa ,  Koji Hirakura ,  Chikara Imai

    发明人： Shigeru Suzuki ,  Yutaka Koizumi ,  Nobuyuki Yanagawa ,  Koji Hirakura ,  Chikara Imai

    IPC分类号： G03B27/50 ,  G03B27/52 ,  G03G13/04 ,  G03G15/04 ,  G03B27/48

    CPC分类号： G03G13/04 ,  G03B27/526

    摘要： An original to be copied is placed in a given position. An exposure optics including a movable part is employed to focus an optical image of slitwise segment of the original on a photosensitive member. The photosensitive member moves in a given direction and at a given speed throughout the exposure. The location where the image of slitwise segment of the original is focused moves through the space of the arrangement at a given speed and in a direction opposite from the direction of movement of the photosensitive member throughout the exposure. Consequently, the location corresponding to the initiation of the exposure is situated downstream as viewed in the direction of movement of the surface of the photosensitive member while the location corresponding to the end of the exposure is situated upstream as viewed in the same direction. Upon termination of the exposure, the photosensitive member continues its movement which is the same as during the exposure while the movable part of the exposure optics returns to its start position.

    摘要翻译： 要复制的原件放置在给定的位置。 使用包括可移动部件的曝光光学元件将原稿的狭缝部分的光学图像聚焦在感光部件上。 感光构件在整个曝光期间以给定的方向和给定的速度移动。 原稿的切割部分的图像的聚焦位置以给定的速度并且在与感光部件的整个曝光过程中的移动方向相反的方向上移动通过布置的空间。 因此，对应于曝光开始的位置位于感光部件的表面的移动方向上观察的下游，而与曝光结束相对应的位置位于沿相同方向观察的上游。 在曝光结束时，感光构件继续其与曝光期间相同的移动，同时曝光光学元件的可移动部分返回到其开始位置。

    Method of removing a film from an image carrier of an image forming apparatus
    8.
    发明授权
    Method of removing a film from an image carrier of an image forming apparatus 失效
    从图像形成装置的图像载体上去除膜的方法

    公开(公告)号：US5003354A

    公开(公告)日：1991-03-26

    申请号：US442584

    申请日：1989-11-29

    申请人： Yoshio Takamiya ,  Kazuyuki Sugihara ,  Chikara Imai ,  Nobuyuki Koinuma ,  Yuji Sawai

    发明人： Yoshio Takamiya ,  Kazuyuki Sugihara ,  Chikara Imai ,  Nobuyuki Koinuma ,  Yuji Sawai

    IPC分类号： G03G21/00

    CPC分类号： G03G21/0047 ,  G03G21/00 ,  G03G2221/0005

    摘要： A method of removing a film from a photoconductive element of a color copier or similar image forming apparatus. At a suitable time when an image forming mode operation for forming a toner image on the photoconductive element is not under way, an amount of cleaning agent great enough to scrape a film off the photoconductive element is transported to a region between the photoconductive element and a cleaning sleeve. Subsequently, the amount of cleaning agent to be transported to such a region is reduced. This sequence of steps is repeated a plurality of times.

    摘要翻译： 从彩色复印机或类似图像形成装置的感光元件去除膜的方法。 在用于在感光体上形成调色剂图像的图像形成模式操作没有进行的合适时间，大量足以从感光元件上刮下薄膜的清洗剂的量被传送到光导元件和 清洁套 随后，要运送到这样的区域的清洁剂的量减少。 重复该步骤顺序多次。

    Electrophotographic apparatus
    9.
    发明授权
    Electrophotographic apparatus 失效
    电子照相设备

    公开(公告)号：US4632537A

    公开(公告)日：1986-12-30

    申请号：US721855

    申请日：1985-04-10

    申请人： Chikara Imai

    发明人： Chikara Imai

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

    CPC分类号： G03G15/0849 ,  G03G15/5041

    摘要： An electrophotographic apparatus is operable selectively in an image-forming mode and a checking mode. In the checking mode, a region of a photosensitive body or drum having a uniform surface potential is developed by a developing unit at a plurality of different developing bias voltages into toner amount detecting regions.

    摘要翻译： 电子照相设备可在图像形成模式和检查模式中选择性地操作。 在检查模式中，具有均匀表面电位的感光体或鼓的区域由显影单元以多种不同的显影偏压电压显影成调色剂量检测区域。

    Dual mode image density controlling method
    10.
    发明授权
    Dual mode image density controlling method 失效
    双模式图像浓度控制方法

    公开(公告)号：US4619522A

    公开(公告)日：1986-10-28

    申请号：US704826

    申请日：1985-02-22

    申请人： Chikara Imai

    发明人： Chikara Imai

    IPC分类号： G03G15/00 ,  G03G15/08

    CPC分类号： G03G15/5041 ,  G03G2215/00042 ,  G03G2215/00084

    摘要： A dual mode method for controlling the density of a toner image is disclosed for an electrophotographic process. In the first mode, an electrostatic latent image is formed on a photosensitive member from a reference pattern having a predetermined reflectance, the latent image is developed, the density of the developed image is detected, and this density information is used to replenish toner to the developer. A second mode can be actuated in which the photosensitive member is excited to form a region of approximately saturating residual potential which is then developed under a predetermined bias potential, the density of the thus developed image is detected and the density information is used to determine whether the developing step is functioning properly.

    摘要翻译： 公开了一种用于控制调色剂图像的浓度的双重模式方法。 在第一模式中，从具有预定反射率的参考图案在感光构件上形成静电潜像，潜像显影，显影图像的浓度被检测，该密度信息用于将调色剂补充到 开发者 可以启动第二模式，其中感光构件被激发以形成近似饱和的残余电势的区域，然后在预定的偏置电位下显影，从而检测到如此显影的图像的浓度，并且使用密度信息来确定是否 开发步骤正常运行。