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31.发明授权Image forming apparatus which prevents image quality deterioration due to plastic deformation 失效防止图像质量因塑性变形而劣化的图像形成装置
公开(公告)号：US6061543A
公开(公告)日：2000-05-09
申请号：US342654
申请日：1999-06-29
申请人： Shin Kayahara , Takashi Bisaiji
发明人： Shin Kayahara , Takashi Bisaiji
CPC分类号： G03G15/167 , G03G15/1615 , G03G2215/0177
摘要： An image forming apparatus has a transfer region located between a first belt and a second belt, which belts are respectively spanned and tensioned around a plurality of rollers. A total length of the first belt is substantially equal to integral multiples of a total length of the second belt. Certain portions of the belts are deformed via plastic deformation caused by contacting the plurality of rollers. The rollers are arranged so that deformed portions of the belts do not overlap each other in the transfer region.
摘要翻译： 图像形成装置具有位于第一带和第二带之间的转印区域，这些带分别跨越并张紧在多个辊周围。 第一带的总长度基本上等于第二带的总长度的整数倍。 皮带的某些部分由于通过接触多个辊引起的塑性变形而变形。 辊子被布置成使得带的变形部分在转印区域中彼此不重叠。
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32.发明授权Image transferring device and medium separating device for an image forming apparatus 失效用于图像形成装置的图像转印装置和介质分离装置
公开(公告)号：US5666622A
公开(公告)日：1997-09-09
申请号：US459422
申请日：1995-06-02
申请人： Yuko Harasawa , Itaru Matsuda , Satoshi Takano , Hideo Yu , Yasunori Kawaishi , Hideki Kamiyama , Toshiaki Motohashi , Mitsuru Takahashi , Takashi Bisaiji
发明人： Yuko Harasawa , Itaru Matsuda , Satoshi Takano , Hideo Yu , Yasunori Kawaishi , Hideki Kamiyama , Toshiaki Motohashi , Mitsuru Takahashi , Takashi Bisaiji
CPC分类号： G03G15/6535 , G03G15/161 , G03G15/1675 , G03G15/1685 , G03G2215/1623 , G03G2215/1661
摘要： The apparatus includes a photoconductive element and a transfer belt, with an electrode or bias applicator located downstream from a nip formed between the photoconductive element and the transfer belt. Upstream from the nip, a roller is provided which can also act as an electrode, or which can be held in an electrically floating state. A bias voltage can be provided to the roller upstream from the nip, with the voltage equal to or less than the voltage applied to the downstream electrode so as form a potential gradient. In addition, the applied voltages can be varied based upon the position of a sheet of paper, or in response to changes in humidity.
摘要翻译： 该装置包括光电导元件和转印带，其中电极或偏置施加器位于形成在感光元件和转印带之间的辊隙的下游。 在辊隙的上游设置有也可以用作电极的辊子，或者可以保持在电浮动状态。 可以向辊隙上游的辊子提供偏置电压，其中电压等于或小于施加到下游电极的电压，从而形成电位梯度。 此外，所施加的电压可以基于一张纸的位置或响应于湿度变化而变化。
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33.发明授权Image transferring device and medium separating device for an image forming apparatus 失效用于图像形成装置的图像转印装置和介质分离装置
公开(公告)号：US5461461A
公开(公告)日：1995-10-24
申请号：US44032
申请日：1993-04-08
申请人： Yuko Harasawa , Itaru Matsuda , Satoshi Takano , Hideo Yu , Yasunori Kawaishi , Hideki Kamiyama , Toshiaki Motohashi , Mitsuru Takahashi , Takashi Bisaiji
发明人： Yuko Harasawa , Itaru Matsuda , Satoshi Takano , Hideo Yu , Yasunori Kawaishi , Hideki Kamiyama , Toshiaki Motohashi , Mitsuru Takahashi , Takashi Bisaiji
CPC分类号： G03G15/6535 , G03G15/161 , G03G15/1675 , G03G15/1685 , G03G2215/1623 , G03G2215/1661
摘要： An image forming apparatus includes a photoconductive element and a transfer belt, with an electrode or bias applicator located downstream from a nip formed between the photoconductive element and the transfer belt. Upstream from the nip, a roller is provided which can also act as an electrode, or which can be held in an electrically floating state. A bias voltage can also be provided to the roller upstream from the nip, with the voltage equal to or less than the voltage applied to the downstream electrode. In addition, the applied voltages can be varied based upon the position of a sheet of paper, or in response to changes in humidity.
摘要翻译： 图像形成装置包括光电导元件和转印带，其中电极或偏置施加器位于形成在感光元件和转印带之间的辊隙的下游。 在辊隙的上游设置有也可以用作电极的辊子，或者可以保持在电浮动状态。 也可以在辊隙上游向辊子提供偏置电压，其电压等于或小于施加到下游电极的电压。 此外，所施加的电压可以基于一张纸的位置或响应于湿度变化而变化。
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公开(公告)号：US5371579A
公开(公告)日：1994-12-06
申请号：US79952
申请日：1993-06-03
申请人： Takashi Bisaiji
发明人： Takashi Bisaiji
CPC分类号： G03G15/169
摘要： A pretransfer charging device for image forming equipment controls the output of a pretransfer charger thereof in response to an environment sensor or a sensor responsive to the amount of toner deposited on a reference toner image which is formed on an image carrier. The device allows a desired amount of charge to be deposited on a toner during image transfer.
摘要翻译： 用于图像形成设备的预转印充电装置响应于环境传感器或传感器响应于沉积在形成在图像载体上的基准调色剂图像上的调色剂的量来控制其预转印充电器的输出。 该装置允许在图像转印期间将期望量的电荷沉积在调色剂上。
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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
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。
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公开(公告)号：US4678318A
公开(公告)日：1987-07-07
申请号：US785066
申请日：1985-10-07
申请人： Takashi Bisaiji
发明人： Takashi Bisaiji
CPC分类号： G03G21/1821 , G03G21/007 , G03G21/1633 , G03G21/1832 , G03G2221/1618 , G03G2221/1648 , G03G2221/1861
摘要： An image forming apparatus such as an electrophotographic copying apparatus has a latent image carrier and a cleaning unit which can be drawn together out of the apparatus housing. After the latent image carrier and the cleaning unit has been pulled out, the cleaning unit is angularly moved around the latent image carrier to direct its cleaning position or slot upwardly. Then, the latent image carrier and the cleaning unit are separated from each other. Since the cleaning slot is directed upwardly, toner collected in the cleaning unit will not be spilled or scattered around through the cleaning slot. The cleaning unit may be coupled with a toner cartridge for collecting toner from the cleaning unit.
摘要翻译： 诸如电子照相复印设备的图像形成设备具有潜像载体和可以从设备外壳中拉出的清洁单元。 在潜像载体和清洁单元被拉出之后，清洁单元围绕潜像载体成角度地移动以将其清洁位置或槽向上引导。 然后，潜像载体和清洁单元彼此分离。 由于清洁槽被向上引导，收集在清洁单元中的调色剂不会通过清洁槽溢出或散落。 清洁单元可以与用于从清洁单元收集调色剂的调色剂盒联接。
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