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公开(公告)号：US5761568A
公开(公告)日：1998-06-02
申请号：US773837
申请日：1996-12-27
申请人： Hideyuki Haragakiuchi , Hiroyuki Tadokoro , Nobuaki Fukasawa , Akira Sasaki , Isamu Terashima , Masashi Yamamoto
发明人： Hideyuki Haragakiuchi , Hiroyuki Tadokoro , Nobuaki Fukasawa , Akira Sasaki , Isamu Terashima , Masashi Yamamoto
CPC分类号： G03G15/1675 , G03G2215/00767
摘要： An electrophotographic imaging apparatus includes a toner image holding body, a transcription unit for transcribing the toner image on the toner image holding body onto a recording medium, and a conveyor for conveying a recording medium toward the toner image holding body and transcription unit. A judging device will judge whether printing is of a first page or not and if it is decided that printing is to be performed on a first page, a first measuring device will measure the electrical characteristic of the toner image holding body prior to the feeding of a recording medium and a transcription voltage will be set depending of this measured result. Thereafter, the recording medium will be conveyed toward the transcription unit where the electrical characteristics of the non-printing region on the recording medium will be measured via a second measuring device and the transcription voltage will be further adjusted. If it is judged that the recording sheet is not the first sheet, only the second measuring and adjusting will be performed. In this manner, transcribing of a toner image can always be performed regardless of the kind of paper being used and/or changes in the environment (temperature, humidity) and a high transcribing efficiency can be attained.
摘要翻译： 电子照相成像设备包括调色剂图像保持体，用于将调色剂图像保持体上的调色剂图像转印到记录介质上的转印单元和用于向记录介质传送调色剂图像保持体和转录单元的传送器。 判断装置将判断打印是否是第一页，如果确定要在第一页上执行打印，则第一测量装置将在馈送之前测量调色剂图像保持体的电特性 将根据该测量结果设置记录介质和转录电压。 此后，记录介质将被传送到记录介质上的非打印区域的电特性将经由第二测量装置测量的转录单元，并且转录电压将被进一步调整。 如果判断记录纸不是第一张纸，则仅进行第二次测量和调整。 以这种方式，总是可以执行调色剂图像的转录，而不管使用的纸张的种类和/或环境变化（温度，湿度）和高转录效率如何。
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公开(公告)号：US5555074A
公开(公告)日：1996-09-10
申请号：US370707
申请日：1995-01-10
申请人： Hideyuki Haragakiuchi , Hiroyuki Tadokoro , Nobuaki Fukasawa , Isamu Terashima , Akira Sasaki , Kazuyoshi Matsuo , Katuyoshi Onose , Masashi Okuhama
发明人： Hideyuki Haragakiuchi , Hiroyuki Tadokoro , Nobuaki Fukasawa , Isamu Terashima , Akira Sasaki , Kazuyoshi Matsuo , Katuyoshi Onose , Masashi Okuhama
CPC分类号： G03G15/2003 , G03G15/2039 , G03G2215/2074
摘要： The disclosure is concerned with an electrophotographic apparatus comprising a toner image supporting member on which a toner image developed on an electrostatic latent image is formed, transferring means for transferring the toner image on said toner image supporting member to a recording medium, conveying means for bringing the recording medium into contact with the image supporting member, a fixing roller and a compression roller in contact with each other to fix the toner image on the recording medium, heating means disposed inside at least one of the fixing roller and the compression roller, wherein there are provided temperature detection means for detecting the surface temperature of the fixing roller and state detection means for detecting the state of the fixing apparatus before starting of the fixing apparatus.
摘要翻译： 本公开涉及一种电子照相设备，包括其上形成有在静电潜像上显影的调色剂图像的调色剂图像支撑构件，用于将所述调色剂图像支持构件上的调色剂图像转印到记录介质的转印装置，用于将 与图像支撑构件接触的记录介质，定影辊和压缩辊彼此接触以将调色剂图像定影在记录介质上，加热装置设置在定影辊和压缩辊中的至少一个中，其中 提供了用于检测定影辊的表面温度的温度检测装置和用于在定影装置启动之前检测定影装置的状态的状态检测装置。
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公开(公告)号：US5530527A
公开(公告)日：1996-06-25
申请号：US413225
申请日：1995-03-30
CPC分类号： G03G15/0126 , G03G15/0849 , G03G15/0891
摘要： A color electrophtographic printer has: a photosensitive drum on which electrostatic latent images are formed according to print data separated by colors; a plurality of developing units each including a developing powder container accommodating a two component developing powder formed by mixing carriers and toners, an apparatus for agitating the developing powder, and a unit for supplying the toners in the developing powder container; a unit for selecting one of the plurality of developing units according to color to be developed and for activating the same to develope the corresponding electrostatic latent image formed on the photosensitive drum; and a control unit for controlling the respective operations. A control unit is further provided for counting colored print data dots contained in print data for respective colors and for additionally activating the developing powder agitating prior to a subsequent developing operation for any of the developing units which have experienced developing of the electrostatic latent images formed with colored print data dots in excess of a predetermined count.
摘要翻译： 彩色电摄影打印机具有：根据由颜色分隔的打印数据形成静电潜像的感光鼓; 多个显影单元，每个显影单元包括容纳通过混合载体和调色剂形成的双组分显影粉末的显影剂粉末容器，用于搅拌显影粉末的装置和用于将调色剂供应到显影剂粉末容器中的单元; 用于根据要显影的颜色选择所述多个显影单元中的一个并用于启动所述显影单元以显影形成在所述感光鼓上的相应静电潜像的单元; 以及用于控制各个操作的控制单元。 还提供一个控制单元，用于计算包含在用于各种颜色的打印数据中的着色打印数据点，并且用于在随后的显影操作之前额外地激活显影粉末，用于任何已经经历了形成静电潜像显影的显影单元 彩色打印数据点超过预定计数。
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公开(公告)号：US5434652A
公开(公告)日：1995-07-18
申请号：US145602
申请日：1993-11-04
CPC分类号： G03G15/0126 , G03G15/0849 , G03G15/0891
摘要： A color electrophtographic printer has a photosensitive drum on which electrostatic latent images are formed according to print data separated by colors; a plurality of developing units each including a developing powder container accommodating a two component developing powder formed by mixing carriers and toners, an apparatus for agitating the developing powder, and a unit for supplying the toners in the developing powder container; a unit for selecting one of the plurality of developing units according to color to be developed and for activating the same to develope the corresponding electrostatic latent image formed on the photosensitive drum; and a control unit for controlling the respective operations. A control unit is further provided for counting colored print data dots contained in print data for respective colors and for additionally activating the developing powder agitating prior to a subsequent developing operation for any of the developing units which have exprienced developing of the electrostatic latent images formed with colored print data dots in excess of a predetermined count.
摘要翻译： 彩色电影打印机具有根据由颜色分隔的打印数据形成静电潜像的感光鼓; 多个显影单元，每个显影单元包括容纳通过混合载体和调色剂形成的双组分显影粉末的显影剂粉末容器，用于搅拌显影粉末的装置和用于将调色剂供应到显影剂粉末容器中的单元; 用于根据要显影的颜色选择所述多个显影单元中的一个并用于启动所述显影单元以显影形成在所述感光鼓上的相应静电潜像的单元; 以及用于控制各个操作的控制单元。 还提供控制单元，用于计数用于各种颜色的打印数据中包含的彩色打印数据点，并且用于另外激活在随后的显影操作之前搅拌的显影粉末，用于任何显影单元，其显影形成的静电潜像 彩色打印数据点超过预定计数。
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5.发明授权Color image electrophotographic apparatus having photosensitive body and intermediate transfer body 失效具有感光体和中间转印体的彩色图像电子照相设备
公开(公告)号：US5285221A
公开(公告)日：1994-02-08
申请号：US869186
申请日：1992-04-16
CPC分类号： H04N1/508 , G03G15/0131 , G03G15/0173 , G06K15/12 , G06K15/129
摘要： An outer peripheral length of an intermediate transfer drum of a color laser beam printer is constituted in which a number of a beam detection signal obtained by one rotation of the transfer drum is formed as an integral number of a face number of a polygon mirror. A passing-through detection means detects the passing-through of a specified position mark on a photosensitive body belt and is provided on the photosensitive body drum at predetermined position. An image data requirement signal generating means controls a generating timing of an image data requirement signal for forming a toner image by the passing-through detection signal. A scanning line at a raster direction based on the beam detection signal after the transfer drum has rotated at one rotation returns and overlapped on a scanning line position formed on the first beam detection signal as a standard. A plural toner images having a different color each are formed on the transfer drum without color offset.
摘要翻译： 彩色激光打印机的中间转印鼓的外周长度被构成为通过转印鼓的一次旋转获得的光束检测信号的数量被形成为多面镜的面数的整数。 通过检测装置检测感光体带上的指定位置标记的通过并且设置在感光体鼓上的预定位置。 图像数据要求信号发生装置通过通过检测信号来控制用于形成调色剂图像的图像数据要求信号的产生定时。 作为标准，基于转印鼓旋转一圈后的光束检测信号的光栅方向的扫描线返回并重叠在形成在第一光束检测信号上的扫描线位置上。 具有不同颜色的多个调色剂图像各自形成在转印鼓上，没有颜色偏移。
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6.发明授权Color printer with transfer and superposition of different color toner images onto intermediate transcription member 失效彩色打印机将不同颜色的墨粉图像转印和叠加到中间转录元件上
公开(公告)号：US5602578A
公开(公告)日：1997-02-11
申请号：US205153
申请日：1994-03-03
申请人： Michio Sumiyoshi , Akira Sasaki , Hiroyuki Tadokoro , Takeshi Kato , Isamu Terashima , Junichi Matsuno , Masaru Nakano
发明人： Michio Sumiyoshi , Akira Sasaki , Hiroyuki Tadokoro , Takeshi Kato , Isamu Terashima , Junichi Matsuno , Masaru Nakano
IPC分类号： B41J2/525 , B41J2/47 , G03G15/00 , G03G15/01 , G03G15/16 , G03G21/00 , G03G21/14 , H04N1/50 , B41J2/435 , H04N1/46
CPC分类号： B41J2/525 , B41J2/473 , G03G15/0131 , H04N1/508
摘要： An intermediate transcription drum is supported so as to be driven in contacting relationship with a photosensitive belt. The rotating speed of the photosensitive belt driving motor is controlled by a control unit such that one rotation cycle of the intermediate transcription drum becomes a given cycle. An adjustment of the speed control data for the photosensitive belt driving motor is performed in the interval between electrostatic latent image forming. Thereby, a speed difference between the photosensitive belt and the intermediate transcription drum does not occur, and a plurality of the toner images can be transferred and accurately superposed onto the outer surface of the intermediate transcription drum.
摘要翻译： 中间转印鼓被支撑成与感光带接触的关系驱动。 感光带驱动电机的旋转速度由控制单元控制，使得中间转印鼓的一个旋转周期成为给定的周期。 在静电潜像形成之间进行感光带驱动电机的速度控制数据的调整。 因此，不会发生感光带和中间转印鼓之间的速度差，并且可以将多个调色剂图像转印并精确地叠加到中间转印鼓的外表面上。
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7.发明授权Color image electrophotographic apparatus for printing long-size copy images 失效用于打印长尺寸复印图像的彩色图像电子照相设备
公开(公告)号：US5164781A
公开(公告)日：1992-11-17
申请号：US735337
申请日：1991-07-24
申请人： Isamu Terashima , Syoji Sagae , Hiroyuki Tadokoro
发明人： Isamu Terashima , Syoji Sagae , Hiroyuki Tadokoro
CPC分类号： G03G15/01
摘要： Each of color toner images is formed on a photo-sensitive drum using a plural development units. An exposure process and a development process for a color image information are carried out repeatedly corresponding to a respective hue of the image information. The toner images of n colors are transferred to the drum by contacting a recording paper to the drum. A record mode is selected in accordance with a length in a peripheral direction of the drum of the image information against a peripheral length of the drum. When the length of the image information is longer than the peripheral length of the drum, N times transfer processes are selected as the record mode. Then the length of the image information is divided into N areas. The image information of n colors existing in every divided area is formed dividedly on the drum. The color image is recorded on a full length of the paper. Besides, when the length of the image information is shorter than the peripheral length of the drum, one time transfer process is selected as the record mode.
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8.发明授权Color image control apparatus having photosensitive body and intermediate transfer body 失效具有感光体和中间转印体的彩色图像控制装置
公开(公告)号：US5648809A
公开(公告)日：1997-07-15
申请号：US291543
申请日：1994-08-16
CPC分类号： H04N1/508 , B41J2/473 , G03G15/0173 , G03G2215/0174
摘要： A color printer has means for setting toner image forming areas in the paper sheet convey direction in respect of respective colors, means for detecting a reference position on a photosensitive belt, and image formation start position setting means responsive to the reference position to set a toner image (electrostatic latent image) formation start position in the rotation direction of the photosensitive belt. When the paper sheet length is longer than the outer peripheral length of an intermediate transfer member, the image formation start position setting means sets, for colors other than the final color, a printing area which is shorter than the outer peripheral length of the intermediate transfer member and sets, for the final color, a printing area which begins immediately after a seam position of the photosensitive belt and conforms to the paper sheet length. Through the above setting, when toner images of two colors are superposed to print a color image, the printing area of the final color can be set to a desired range in the paper sheet length direction regardless of the outer peripheral length of the intermediate transfer member, thereby improving the printing speed and preventing degradation of quality.
摘要翻译： 彩色打印机具有用于相对于各种颜色设置纸张传送方向上的调色剂图像形成区域的装置，用于检测感光带上的基准位置的装置，以及响应于基准位置的图像形成开始位置设置装置，以设置调色剂 图像（静电潜像）形成开始位置在感光带的旋转方向上。 当纸张长度大于中间转印部件的外周长度时，图像形成开始位置设定装置对于最终颜色以外的颜色设定比中间转印体的外周长度短的印刷区域 为最后的颜色设置打印区域，该打印区域在感光带的接缝位置之后立即开始并且符合纸张长度。 通过上述设置，当将两种颜色的调色剂图像重叠以打印彩色图像时，最终颜色的打印区域可以被设置在纸张长度方向上的期望范围，而不管中间转印部件的外周长度如何 从而提高打印速度并防止质量下降。
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公开(公告)号：US5373354A
公开(公告)日：1994-12-13
申请号：US935404
申请日：1992-08-26
CPC分类号： G03G15/0131 , G03G15/0152 , G03G15/0163 , G03G15/6591 , G03G15/0173 , G03G2215/00497
摘要： A color electrophotographic device includes, a color toner image producing device which produces a color toner image on a rotatable photo sensitive drum by forming four toner images thereon; an image transferring device which transfers the color toner image on the photo sensitive drum onto a recording medium; a fixing means which fixes the color toner image on the recording medium; a transferring device which transfers the recording medium; a recording medium selecting and feeding device which selects one of an ordinary paper and a transparent sheet to serve as the recording medium and feeds the selected one to the transferring device; and a control device which controls the operations of the devices referred to above and includes a first and a second control function which are rendered operative when the transparent sheet is selected as the recording medium, wherein the first control function causes the photo sensitive drum to perform one idle rotation before the image transferring device beings to transfer the color toner image carried on the photo sensitive drum onto the recording medium; and wherein the second control function causes the transferring device to reduce the transferring speed for the transparent sheet to a speed lower than that for the ordinary paper only during the operations of the image transferring device and the fixing means and the transferring speed reduction is accomplished after the last toner image has been formed on the photo sensitive drum and during the idle rotation thereof.
摘要翻译： 彩色电子照相装置包括：彩色调色剂图像产生装置，通过在其上形成四个调色剂图像在可旋转的感光鼓上产生彩色调色剂图像; 图像转印装置，其将感光鼓上的彩色调色剂图像转印到记录介质上; 固定装置，其将彩色调色剂图像固定在记录介质上; 传送设备，传送记录介质; 选择普通纸和透明纸之一作为记录介质并将所选择的纸送到转印装置的记录介质选择和输送装置; 以及控制装置，其控制上述装置的操作，并且包括第一和第二控制功能，当选择透明片作为记录介质时，该第一和第二控制功能可操作，其中第一控制功能使感光鼓执行 图像传送装置之前的一个空转，将承载在感光鼓上的彩色调色剂图像转印到记录介质上; 并且其中所述第二控制功能使所述传送装置仅在所述图像传送装置和所述固定装置的操作期间将所述透明片材的传送速度降低到低于普通纸张的速度，并且所述传送装置在所述传送速度降低之后 最后一个墨粉图像已经形成在感光鼓上并且在其空转期间。
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10.发明授权
公开(公告)号：US5729267A
公开(公告)日：1998-03-17
申请号：US235809
申请日：1994-04-29
CPC分类号： G03G15/168 , B41J2/385 , B41J2/525 , G03G2215/1652
摘要： Image forming apparatus having a photosensitive drum 1, a charger 2 for uniformly charging the photosensitive drum 1, an exposing means 3 for forming an electro-static latent image on the photosensitive drum 1, an exposing unit 4 for forming a visual image by developing the electro-static latent image, a transfer roller for transferring the visual image to a printing medium 10, which comprises a transfer voltage supply circuit that supplies the transfer roller 5 one or more times with voltage in one polar direction and successively in the other polar direction during an interval after starting of operation of the image forming apparatus and before the time when the printing medium 10 is transported to the transfer roller 5. By controlling in such a way, an image forming apparatus is provided in which memory effect does not arise, the transfer roller 5 being prevented from having accumulated toner attached thereto, the toner attached to the transfer roller 5 being cleaned, and so the reverse side surface of the printing medium 10 is not stained.
摘要翻译： 具有感光鼓1的图像形成装置，用于使感光鼓1均匀充电的充电器2，用于在感光鼓1上形成静电潜像的曝光装置3，用于通过显影形成视觉图像的曝光单元4 静电潜像，用于将视觉图像传送到打印介质10的转印辊，该转印辊包括转印电压供应电路，该转印电压供应电路向一个极性方向和另一个极性方向依次提供转印辊5的电压一次或多次 在图像形成装置的操作开始之后的间隔期间，以及在打印介质10被传送到转印辊5的时间之间。通过这样的控制，提供了不产生记忆效应的图像形成装置， 防止转印辊5附着有累积的调色剂，附着在转印辊5上的调色剂被清洁，因此， 打印介质10的正面侧表面没有污染。
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