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公开(公告)号：US20060001732A1
公开(公告)日：2006-01-05
申请号：US11214775
申请日：2005-08-31
IPC分类号： B41J2/435
CPC分类号： B41J2/473 , G02B26/127 , H04N1/0473 , H04N1/1135 , H04N1/1911 , H04N2201/02439 , H04N2201/04712 , H04N2201/04734 , H04N2201/04744 , H04N2201/04749 , H04N2201/04762 , H04N2201/04794
摘要： A light beam position detecting device detects the passage positions of a plurality of light beams for scanning the surface of a photosensitive drum. The light beam position detecting device has a sensor pattern for generating an output which is continuously changed in a wide range with a variation in the passage position of the light beam in a sub-scanning direction perpendicular to a main scanning direction of the light beam. The sensor pattern precisely detects the relative scanning position of the light beam in a wide range. The passage positions of the plurality of light beams for scanning the surface of the photosensitive drum are controlled to a preset position based on the output of the sensor pattern.
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公开(公告)号：US20050135853A1
公开(公告)日：2005-06-23
申请号：US11009920
申请日：2004-12-10
申请人： Naoaki Ide , Kazushige Morihara
发明人： Naoaki Ide , Kazushige Morihara
CPC分类号： G03G21/046 , G03G2215/00324
摘要： The CPU of the image forming apparatus sets up an ADF reading magnification in the ADF driving unit including the motor and the motor driver referring to the first magnification conversion table in the memory of the system unit when reading a document image while a document is being moved. Further, the reading magnification that is also in the ADF driving unit is also set in the specific document detection unit. The specific document detection unit makes the pattern matching as to whether the read image data is that of a specific document using the magnification dictionary (specific image data) that is set and outputs a detection signal as the result of the matching to the CPU. As that time, the CPU controls the output of the applicable read image data by a printer according to the detection signal.
摘要翻译： 图像形成装置的CPU在参考文档移动期间读取文档图像时，参考系统单元的存储器中的第一倍率转换表，在包括电动机和电动机驱动器的ADF驱动单元中建立ADF读取倍率 。 此外，也在ADF驱动单元中的读取倍率也设置在特定文档检测单元中。 特定文档检测单元使用设置的倍率字典（特定图像数据）来使得读取的图像数据是特定文档的图案数据，并将作为匹配结果的检测信号输出到CPU。 此时，CPU根据检测信号通过打印机控制适用的读取图像数据的输出。
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公开(公告)号：US20050036027A1
公开(公告)日：2005-02-17
申请号：US10938659
申请日：2004-09-13
CPC分类号： B41J2/473 , G02B26/127 , H04N1/0473 , H04N1/1135 , H04N1/1911 , H04N2201/02439 , H04N2201/04712 , H04N2201/04734 , H04N2201/04744 , H04N2201/04749 , H04N2201/04762 , H04N2201/04794
摘要： A light beam position detecting device detects the passage positions of a plurality of light beams for scanning the surface of a photosensitive drum. The light beam position detecting device has a sensor pattern for generating an output which is continuously changed in a wide range with a variation in the passage position of the light beam in a sub-scanning direction perpendicular to a main scanning direction of the light beam. The sensor pattern precisely detects the relative scanning position of the light beam in a wide range. The passage positions of the plurality of light beams for scanning the surface of the photosensitive drum are controlled to a preset position based on the output of the sensor pattern.
摘要翻译： 光束位置检测装置检测用于扫描感光鼓表面的多个光束的通过位置。 光束位置检测装置具有用于产生在与光束的主扫描方向正交的副扫描方向上的光束的通过位置的变化在宽范围内连续变化的输出的传感器图案。 传感器图案在宽范围内精确地检测光束的相对扫描位置。 用于扫描感光鼓表面的多个光束的通过位置基于传感器图案的输出被控制到预设位置。
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公开(公告)号：US06392684B1
公开(公告)日：2002-05-21
申请号：US09606744
申请日：2000-06-29
IPC分类号： B41J247
CPC分类号： B41J2/473 , G02B26/123
摘要： There is provided an image forming apparatus which can implement digital control of a laser beam scan (analog amount) that moves at high speed, without using any high-speed, multi-bit A/D converter. Upon executing a digital process on the basis of analog detection value Vo corresponding to the passage position or light beam power of a light beam with which a photosensitive drum is irradiated, comparator CMP0, comparison reference value (threshold value) Vr of which changes in correspondence with detection value (integration output) Vo, is used. New comparison reference value Vr is supplied to comparator CMP0 on the basis of digital data BMDA corresponding to output CMPOUT of this comparator.
摘要翻译： 提供了一种图像形成装置，其可以实现高速移动的激光束扫描（模拟量）的数字控制，而不使用任何高速，多位A / D转换器。 在基于与照射感光鼓的光束的通过位置或光束功率相对应的模拟检测值Vo执行数字处理时，比较器CMP0，其对应的比较基准值（阈值）Vr变化 具有检测值（积分输出）Vo。 基于对应于该比较器的输出CMPOUT的数字数据BMDA，将新的比较参考值Vr提供给比较器CMP0。
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55.发明授权Light beam scanning, image forming apparatus, and method of adjusting the image forming apparatus 失效光束扫描，图像形成装置以及调整图像形成装置的方法公开(公告)号：US06188424B1
公开(公告)日：2001-02-13
申请号：US09235398
申请日：1999-01-22
申请人： Kenichi Komiya , Koji Tanimoto , Naoaki Ide , Jun Sakakibara
发明人： Kenichi Komiya , Koji Tanimoto , Naoaki Ide , Jun Sakakibara
IPC分类号： B41J247
CPC分类号： G02B26/123 , B41J2/473
摘要： A light beam is made to scan and expose a photosensitive drum in the main scanning direction and the passing position of the light beam in the sub-scanning direction is sensed. On the basis of the result of the sensing, the light beam is shifted in the sub-scanning direction when the beam is made to scan by a scanner so that the passing position may come in a target range, which brings the passing position to the proper position. After the position control, the passing position of the light beam is confirmed and controlled so that the passing position may fall on the proper position a specific number of times consecutively. When the light beam is shifted in the sub-scanning direction, the passing position of the light beam is brought into a final target range in such a manner that the target range is forced to converge stepwise in a first range and then in a second range narrower than the first range.
摘要翻译： 使光束在主扫描方向上扫描和曝光感光鼓，并且感测光束在副扫描方向上的通过位置。 基于感测的结果，当通过扫描仪对光束进行扫描时，光束在副扫描方向上移动，使得通过位置可能进入目标范围，这使得通过位置到 适当的位置 在位置控制之后，确认和控制光束的通过位置，使得通过位置可以连续地落在适当的位置上一定次数。 当光束沿副扫描方向移动时，使光束的通过位置成为最终目标范围，使得目标范围被迫在第一范围内然后在第二范围内逐步收敛 比第一范围窄。
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公开(公告)号：US5778280A
公开(公告)日：1998-07-07
申请号：US613238
申请日：1996-03-08
申请人： Kenichi Komiya , Koji Tanimoto , Naoaki Ide
发明人： Kenichi Komiya , Koji Tanimoto , Naoaki Ide
CPC分类号： H04N1/0473 , G03G15/0194 , H04N1/506 , G03G2215/0119 , G03G2215/0158 , H04N1/12 , H04N1/193 , H04N2201/0471 , H04N2201/04786
摘要： An image forming apparatus including a plurality of latent image forming units for forming latent images on a plurality of image carriers, a plurality of developing devices for forming developed images by developing the latent images formed by the latent image forming units, and an image conveyer belt for conveying the developed images formed by the developing devices. The image forming apparatus further contains a registration sensor for detecting the developed images conveyed on the image conveyer belt, and the registration sensor has a light source, a first optical fiber element for guiding the light from the light source and illuminating the image conveyer belt to obtain the reflected light, a second optical fiber element for guiding the reflected light in a specified direction, and a light receiving element for converting the reflected light guided by the second optical fiber element into an electric signal. The image forming apparatus has a computing device for a computing misregistration correcting amount to correct the misregistration of each of the developed images conveyed by the image conveyer belt based on the detecting result of the registration sensor and executes the correction of the misregistration based on the computed result of the computing device.
摘要翻译： 一种图像形成装置，包括用于在多个图像载体上形成潜像的多个潜像形成单元，通过显影由潜像形成单元形成的潜像来形成显影图像的多个显影装置，以及图像传送带 用于输送由显影装置形成的显影图像。 图像形成装置还包括用于检测在图像传送带上传送的显影图像的配准传感器，并且配准传感器具有光源，第一光纤元件，用于引导来自光源的光并将图像传送带照射到 获得反射光，用于沿指定方向引导反射光的第二光纤元件和用于将由第二光纤元件引导的反射光转换成电信号的光接收元件。 图像形成装置具有用于计算对准校正量的计算装置，以根据登记传感器的检测结果校正由图像传送带传送的每个显影图像的对准，并且基于计算出的图像形成装置执行重新排列的校正 计算设备的结果。
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公开(公告)号：US4837600A
公开(公告)日：1989-06-06
申请号：US105828
申请日：1987-10-08
申请人： Toshihiro Kasai , Naoaki Ide
发明人： Toshihiro Kasai , Naoaki Ide
CPC分类号： G03G15/5037 , G03G15/0266
摘要： A recording apparatus having a photosensitive body, a charger for charging the photosensitive body, an exposure unit for forming a latent image on the photosensitive body charged by the charger, and a developing unit for developing the latent image into a visible image on the photosensitive body. The recording apparatus also includes a first surface potential sensor for measuring the surface potential of the photosensitive body before the latent image has been developed by the developing unit, a second surface potential sensor for measuring the surface potential of the photosensitive body after the latent image has been developed by the developing unit, a computer for computing the surface potential of the photosensitive body at a position between the first and second surface potential sensors to estimate the surface potential at the position of the developing unit, and a controller for controlling the charger so that the estimated surface potential becomes a determined level.
摘要翻译： 具有感光体的记录装置，用于对感光体充电的充电器，用于在由充电器充电的感光体上形成潜像的曝光单元和用于将潜像显影成感光体上的可视图像的显影单元 。 记录装置还包括第一表面电位传感器，用于在潜像被显影单元显影之前测量感光体的表面电位;第二表面电位传感器，用于在潜像具有感光体之后测量感光体的表面电位 由显影单元开发的计算机，用于计算第一和第二表面电位传感器之间的位置处的感光体的表面电位的计算机，以估计显影单元的位置处的表面电位，以及用于控制充电器的控制器 估计的表面电位变为确定的水平。
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