公开(公告)号：US5864733A

公开(公告)日：1999-01-26

申请号：US736679

申请日：1996-10-25

申请人： Asami Mae ,  Manabu Mochizuki ,  Kentaro Matsumoto ,  Kenji Karashima ,  Kazuhiko Yuki ,  Chikara Imai ,  Hajime Oyama ,  Noriyuki Usui

发明人： Asami Mae ,  Manabu Mochizuki ,  Kentaro Matsumoto ,  Kenji Karashima ,  Kazuhiko Yuki ,  Chikara Imai ,  Hajime Oyama ,  Noriyuki Usui

IPC分类号： G03G15/00 ,  G03G15/09

CPC分类号： G03G15/80 ,  G03G15/0907 ,  G03G2215/0609

摘要： An image forming apparatus including a photoconductive drum, a charger which charges the photoconductive drum, an exposing device which irradiates light to the charged photoconductive drum for forming an electrostatic latent image on the photoconductive drum, a developing device which has two component developer which includes magnetic toner and magnetic carriers and a transfer charger to transfer the developed image to a sheet of paper. The bias voltages of the charger, the developing device and the transfer charger are applied from a common high voltage power source. A developing starting voltage of the developing device is higher than a residual voltage of the photoconductive drum.

摘要翻译： 一种图像形成装置，包括感光鼓，对感光鼓进行充电的充电器，向感光鼓上形成静电潜像的带电感光鼓照射光的曝光装置，具有包括磁性的二组分显影剂的显影装置 调色剂和磁性载体和转印充电器将显影的图像转印到一张纸上。 充电器，显影装置和转印充电器的偏置电压从公共高压电源施加。 显影装置的显影起始电压高于感光鼓的残留电压。

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。

公开(公告)号：US4277549A

公开(公告)日：1981-07-07

申请号：US030896

申请日：1979-04-17

申请人： Susumu Tatsumi ,  Tadahiro Eda ,  Chikara Imai

发明人： Susumu Tatsumi ,  Tadahiro Eda ,  Chikara Imai

IPC分类号： G03G15/06 ,  G03G15/00 ,  G03G15/08 ,  G03G21/00 ,  G03G13/06

CPC分类号： G03G15/5037 ,  G03G15/0851 ,  G03G15/0853

摘要： In an electrophotographic copying machine, the copy image adjustment method for correcting copy image characteristics comprises the steps of measuring copying characteristics by use of a reference original and resetting development characteristics in accordance with the measurement results.

摘要翻译： 在电子照相复印机中，用于校正复印图像特性的复印图像调整方法包括通过使用参考原件测量复印特性并根据测量结果重新设定显影特性的步骤。

公开(公告)号：US4191568A

公开(公告)日：1980-03-04

申请号：US884836

申请日：1978-03-09

申请人： Hideaki Ema ,  Satoshi Otomura ,  Chikara Imai ,  Kiyoshi Sakai

发明人： Hideaki Ema ,  Satoshi Otomura ,  Chikara Imai ,  Kiyoshi Sakai

IPC分类号： G03G5/147 ,  G03G5/047 ,  G03G5/06 ,  G03G5/14

CPC分类号： G03G5/0612 ,  G03G5/047 ,  G03G5/142

摘要： A photosensitive material for use in electrophotography is disclosed which comprises a conductive support, a photoconductive layer superposed on said support and a protective layer superposed on said photoconductive layer, said surface protective layer containing an organic compound which has a structure according to the formula ##STR1## in a part of the molecule.

摘要翻译： 公开了一种用于电子照相术的感光材料，其包括导电支撑体，叠加在所述支撑体上的光电导层和叠加在所述光电导层上的保护层，所述表面保护层含有有机化合物，该有机化合物具有根据下式的结构： >在分子的一部分。

公开(公告)号：US5394231A

公开(公告)日：1995-02-28

申请号：US99553

申请日：1993-07-30

申请人： Kazuhisa Sudo ,  Mitsuo Tanaka ,  Chikara Imai ,  Koji Suzuki ,  Norimasa Sohmiya ,  Sadao Takahashi

发明人： Kazuhisa Sudo ,  Mitsuo Tanaka ,  Chikara Imai ,  Koji Suzuki ,  Norimasa Sohmiya ,  Sadao Takahashi

IPC分类号： G03G9/08 ,  G03G9/09 ,  G03G13/08 ,  G03G15/04 ,  G03G15/08 ,  G03G15/20 ,  G03G15/22 ,  G03G15/36 ,  G03G21/00 ,  G03G15/01

CPC分类号： G03G13/08 ,  G03G15/04018 ,  G03G9/0926

摘要： An image forming apparatus capable of forming both of erasable images and images to be stored, and increasing the number of times that a single sheet with an image can be repetitively decolorized and reused. The apparatus includes a photoconductive element for electrostatically forming a latent image representative of image data. A developing device develops the latent image formed on the photoconductive element by either of an ordinary undecolorizable toner and a decolorizable toner.

摘要翻译： 能够形成要存储的可擦除图像和图像的图像形成装置，并且增加具有图像的单张纸的次数可以被重复地脱色和重复使用。 该装置包括用于静电形成代表图像数据的潜像的光电导元件。 显影装置通过任何普通的未脱色的调色剂和可脱色的调色剂来形成在感光体上形成的潜像。

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。

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。

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。

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。

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。