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公开(公告)号：US5982524A
公开(公告)日：1999-11-09
申请号：US924699
申请日：1997-09-05
CPC分类号： G02B26/126
摘要： The present invention is intended to reduce a f.theta. correction error by correcting an error of an object scanning speed which is produced because a reflecting point of a laser beam moves on a polygon mirror. In an inventive laser scanner, laser light emitted from a laser oscillator is condensed into a beam by a condenser lens at first. This laser beam is reflected by a polygon mirror rotated by a scanning section and is reflected again to a photoreceptor by a curved reflecting mirror. A curved profile of a reflecting plane of the curved reflecting mirror in the main scanning direction is formed so as to be asymmetrical on right and left bounding about a scanning center point. Thereby, variation of speed for scanning the curved reflecting mirror by the light reflected by the polygon mirror may be canceled by the curved reflecting mirror and a speed for scanning the object may be fixed almost at a predetermined speed.
摘要翻译： 本发明旨在通过校正由于激光束的反射点在多面镜上移动而产生的物体扫描速度的误差来减小fθ校正误差。 在本发明的激光扫描仪中，首先从聚光透镜将从激光振荡器发射的激光聚光成束。 该激光束由被扫描部旋转的多面体镜反射，并被弯曲的反射镜再次反射到感光体。 在主扫描方向上的弯曲反射镜的反射面的弯曲轮廓形成为围绕扫描中心点的左右边界不对称。 由此，由多面镜反射的光来扫描弯曲反射镜的速度变化可能被弯曲的反射镜消除，并且用于扫描物体的速度可以几乎以预定速度固定。
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公开(公告)号：US06240271B1
公开(公告)日：2001-05-29
申请号：US09238150
申请日：1999-01-28
申请人： Yoichi Shimazawa , Hideo Matsuda , Yasutaka Maeda , Shunju Anzai , Osamu Fujimoto , Hidekazu Sakagami , Kazumi Irie
发明人： Yoichi Shimazawa , Hideo Matsuda , Yasutaka Maeda , Shunju Anzai , Osamu Fujimoto , Hidekazu Sakagami , Kazumi Irie
IPC分类号： G03G1501
CPC分类号： G06K15/129 , G03G15/0184 , G03G2215/0106
摘要： Developing devices are provided adjacent to a light sensitive element. An intermediate transfer drum is provided adjacent to the light sensitive elements. After exposure of the light sensitive element, a first color or third color image is formed on the light sensitive element. On the other hand, after exposure of the light sensitive element, a second color or fourth color image can be formed on the light sensitive element. The first color image is transferred from the transfer unit to the intermediate transfer drum at the first transfer portion, and the second color image is transferred from the transfer unit at the second transfer portion so as to be superimposed on the first color image. Similarly, the third color image is transferred so as to be superimposed on the second image and the fourth color image is transferred so as to be superimposed on the third color image to the intermediate transfer drum. Accordingly, the first to fourth color images are superimposed. Thereby, downsizing of the device and cost reduction are achieved and image formation speed is facilitated.
摘要翻译： 显影装置设置在与光敏元件相邻的位置。 中间转印鼓设置成与光敏元件相邻。 在感光元件曝光之后，在感光元件上形成第一彩色或第三彩色图像。 另一方面，在感光元件曝光之后，可以在光敏元件上形成第二彩色或第四彩色图像。 第一彩色图像在第一转印部分从转印单元转印到中间转印鼓，并且第二彩色图像在第二转印部分从转印单元转印以便叠加在第一彩色图像上。 类似地，第三彩色图像被转印以叠加在第二图像上，并且第四彩色图像被转印以便叠加在第三彩色图像上至中间转印鼓。 因此，叠加第一至第四彩色图像。 从而，实现了装置的小型化和成本降低，并且促进了图像形成速度。
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公开(公告)号：US5915074A
公开(公告)日：1999-06-22
申请号：US856321
申请日：1997-05-14
申请人： Yoichi Shimazawa , Hideo Matsuda , Yasutaka Maeda , Shunju Anzai , Osamu Fujimoto , Hidekazu Sakagami , Kazumi Irie
发明人： Yoichi Shimazawa , Hideo Matsuda , Yasutaka Maeda , Shunju Anzai , Osamu Fujimoto , Hidekazu Sakagami , Kazumi Irie
CPC分类号： G06K15/129 , G03G15/0184 , G03G2215/0106
摘要： Developing devices are provided adjacent to a light sensitive element. An intermediate transfer drum is provided adjacent to the light sensitive elements. After exposure of the light sensitive element, a first color or third color image is formed on the light sensitive element. On the other hand, after exposure of the light sensitive element, a second color or fourth color image can be formed on the light sensitive element. The first color image is transferred from the transfer unit to the intermediate transfer drum at the first transfer portion, and the second color image is transferred from the transfer unit at the second transfer portion so as to be superimposed on the first color image. Similarly, the third color image is transferred so as to be superimposed on the second image and the fourth color image is transferred so as to be superimposed on the third color image to the intermediate transfer drum. Accordingly, the first to fourth color images are superimposed. Thereby, downsizing of the device and cost reduction are achieved and image formation speed is facilitated.
摘要翻译： 显影装置设置在与光敏元件相邻的位置。 中间转印鼓设置成与光敏元件相邻。 在感光元件曝光之后，在感光元件上形成第一彩色或第三彩色图像。 另一方面，在感光元件曝光之后，可以在光敏元件上形成第二彩色或第四彩色图像。 第一彩色图像在第一转印部分从转印单元转印到中间转印鼓，并且第二彩色图像在第二转印部分从转印单元转印以便叠加在第一彩色图像上。 类似地，第三彩色图像被转印以叠加在第二图像上，并且第四彩色图像被转印以便叠加在第三彩色图像上至中间转印鼓。 因此，叠加第一至第四彩色图像。 从而，实现了装置的小型化和成本降低，并且促进了图像形成速度。
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公开(公告)号：US6163334A
公开(公告)日：2000-12-19
申请号：US183022
申请日：1998-10-30
IPC分类号： B41J2/44 , B41J2/45 , B41J2/455 , G06K15/12 , H04N1/053 , H04N1/113 , H04N1/50 , B41J2/435 , B41J2/47
CPC分类号： H04N1/506 , G06K15/1219 , G06K15/129 , H04N1/053 , H04N1/1135 , H04N2201/02439 , H04N2201/0471 , H04N2201/04732 , H04N2201/04744 , H04N2201/04772 , H04N2201/04777 , H04N2201/04794
摘要： A conventional image forming device having a plurality of image optical scanning recording sections has had a drawback of being incapable of correcting printing positions of the image optical scanning recording sections with high precision by using a small-scale circuit. In the case of an image forming device of the present invention, a variable clock generator 114 having a voltage control oscillator (VCO) 114a is provided therein as reference clock signal generating means of laser control system of each of image optical scanning recording sections (LSU) for cyan, yellow, and magenta. By so doing, during an invalid printing period prior to a valid printing period, frequencies of the reference clock signals of the LSUs for cyan, yellow, and magenta are adjusted in accordance with offsets of printing start positions of these LSUs with respect to that of the LSU for black, so that printing offsets are eliminated. As a result, the printing start positions are made to coincide with each other with high precision even with a small-scale circuit.
摘要翻译： 具有多个图像光学扫描记录部分的传统图像形成装置的缺点是通过使用小规模电路不能以高精度校正图像光学扫描记录部分的打印位置。 在本发明的图像形成装置的情况下，设置有具有压控振荡器（VCO）114a的可变时钟发生器114作为每个图像光学扫描记录部分（LSU）的激光控制系统的参考时钟信号发生装置 ），用于青色，黄色和品红色。 通过这样做，在有效打印周期之前的无效打印期间，根据这些LSU的打印开始位置相对于蓝色，黄色和品红色的LSU的打印开始位置的偏移量，调整用于青色，黄色和品红色的LSU的参考时钟信号的频率 用于黑色的LSU，从而消除打印抵消。 结果，即使使用小规模电路，打印开始位置也以高精度相互重合。
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公开(公告)号：US4952986A
公开(公告)日：1990-08-28
申请号：US330367
申请日：1989-03-29
申请人： Yasutaka Maeda , Hideyuki Nishimura , Tsuyoshi Miyamoto , Kyouichi Takata , Kiyoshi Inamoto , Kazuyuki Ohnishi , Kazunori Sohda , Yukihiko Ueno , Taisuke Kamimura , Yoichi Shimazawa , Tokiyuki Okano , Masato Tokishige
发明人： Yasutaka Maeda , Hideyuki Nishimura , Tsuyoshi Miyamoto , Kyouichi Takata , Kiyoshi Inamoto , Kazuyuki Ohnishi , Kazunori Sohda , Yukihiko Ueno , Taisuke Kamimura , Yoichi Shimazawa , Tokiyuki Okano , Masato Tokishige
CPC分类号： G03G15/5025 , G03G15/01
摘要： A copying apparatus having a prescanning function for obtaining density data to adjust copy parameters includes a correction function which eliminates the data obtained from a portion of a predetermined color, from the density data detected on a prescanning process. The density data can be restricted within a predetermined range. The predetermined range can be easily set by the user.
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公开(公告)号：US5070368A
公开(公告)日：1991-12-03
申请号：US475344
申请日：1990-02-05
申请人： Tokiyuki Okano , Kiyoshi Inamoto , Kazuyuki Ohnishi , Hidetomo Nishiyama , Kazunori Sohda , Masato Tokishige , Yoichi Shimazawa
发明人： Tokiyuki Okano , Kiyoshi Inamoto , Kazuyuki Ohnishi , Hidetomo Nishiyama , Kazunori Sohda , Masato Tokishige , Yoichi Shimazawa
CPC分类号： G03G15/0126 , G03G15/0849 , G03G15/0853 , G03G15/0856
摘要： A developing apparatus which includes a plurality of developing units individually provided with sensors for detecting amounts of toner accommodated therein, includes a judging device for judging whether or not sensor outputs of other developing units are below a replenishable amount when a sensor output of one developing unit falls below a replenishing requiring amount, and a replenishing display device for urging toner replenishment, based on the result of the above judgement, with respect to the developing unit having the sensor output below the replenishing requiring amount and the developing unit whose sensor output is below the replenishable amount.
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7.发明授权公开(公告)号：US06181356B2
公开(公告)日：2001-01-30
申请号：US09110609
申请日：1998-07-06
IPC分类号： B41J2385
CPC分类号： G03G15/5058 , G03G15/0194 , G03G2215/00042 , G03G2215/00059 , G03G2215/0119 , H04N1/00002 , H04N1/00015 , H04N1/00031 , H04N1/00045 , H04N1/00053 , H04N1/4078
摘要： An object of the present invention is to offer an image stabilizer device capable of effectively improving quality of images produced by an image forming apparatus of a type that changes the size of a basic pixel by controlling an irradiation time of write-in light, and to offer a pattern image reader device used for the purpose. A pattern image reader device 100 is constituted by a reader unit 2 that at least contains a semiconductor laser 3, converging lens 6, and photosensor 5 for reading the amount of reflected light, and the driving section 7 that contains a drive coil 7c for moving the reader unit 2 in the principal scanning direction, and can measure on the order of microns the size of a toner image formed on the surface of a transfer and transport belt 26 in the principal scanning direction by monitoring the output of the photosensor 5 while moving in the principal scanning direction under the control by the CPU 48. The CPU 48 thereafter corrects lookup tables 45a to 45d according to the dot diameter measured in the principal scanning direction.
摘要翻译： 本发明的目的是提供一种能够有效地提高通过控制写入光的照射时间来改变基本像素的尺寸的图像形成装置产生的图像的质量的图像稳定装置，并且 提供用于此目的的图案读取器设备。 图案图像读取装置100由读取单元2构成，读取单元2至少包含半导体激光器3，会聚透镜6和用于读取反射光量的光电传感器5，驱动部7包含用于移动的驱动线圈7c 读取器单元2在主扫描方向上，并且可以通过在移动的同时监视光传感器5的输出来在主扫描方向上测量形成在传送带26的表面上的调色剂图像的尺寸的微米量级 在CPU48的控制下在主扫描方向上。然后，CPU48根据在主扫描方向上测量的点直径来校正查找表45a至45d。
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公开(公告)号：US5477308A
公开(公告)日：1995-12-19
申请号：US157929
申请日：1993-11-24
申请人： Kazuyuki Ohnishi , Yasutaka Maeda , Yoichi Shimazawa , Mihoko Okada , Yuichi Kazaki , Shin-ichirou Ohhashi , Yoshie Iwakura
发明人： Kazuyuki Ohnishi , Yasutaka Maeda , Yoichi Shimazawa , Mihoko Okada , Yuichi Kazaki , Shin-ichirou Ohhashi , Yoshie Iwakura
CPC分类号： G03G15/50 , G03G15/5041 , H04N1/32561 , G03G2215/00042 , H04N2201/0081 , H04N2201/0082
摘要： An image forming apparatus is designed to compensate for voltage to be applied to an exposure lamp and a charger in accordance with changes in the density of a toner image formed on a photoreceptor that occur from its initial state to its final state after an image forming operation. More specifically, the density of a reference toner image is measured by a toner-density sensor. The amount of change in the density is measured beginning with its initial state by a subtracter, and the amount of compensation for the voltage required for obtaining the optimum image quality is found. By using these amounts of compensation as teaching data, learning is made as to the relationship between the amount of change in the density and the amount of compensation in a neurocomputer. Upon forming an image, the neurocomputer executes operations in accordance with the contents of the learning based on an inputted amount of change in density, and finds an appropriate amount of compensation. With this arrangement, it is possible to constantly obtain copied images having stable image quality, and to lower the cost of image forming apparatuses by reducing the number of parts used for the sensors or other devices.
摘要翻译： 图像形成装置被设计为根据在成像操作之后从其初始状态发生到其最终状态的感光体上形成的调色剂图像的浓度的变化来补偿施加到曝光灯和充电器的电压 。 更具体地，通过调色剂浓度传感器测量参考调色剂图像的浓度。 通过减法器从其初始状态开始测量密度的变化量，并且找到获得最佳图像质量所需的电压的补偿量。 通过使用这些数量的补偿作为教学数据，就了解了神经计算机中密度变化量与补偿量之间的关系。 在形成图像时，神经计算机根据输入的密度变化量根据学习的内容执行操作，并且找到适当的补偿量。 通过这种布置，可以不断获得具有稳定图像质量的复制图像，并且通过减少用于传感器或其他装置的部件数量来降低图像形成装置的成本。
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公开(公告)号：US5138386A
公开(公告)日：1992-08-11
申请号：US681587
申请日：1991-04-08
申请人： Tokiyuki Okano , Kiyoshi Inamoto , Kazuyuki Ohnishi , Hidetomo Nishiyama , Kazunori Sohda , Masato Tokishige , Yoichi Shimazawa
发明人： Tokiyuki Okano , Kiyoshi Inamoto , Kazuyuki Ohnishi , Hidetomo Nishiyama , Kazunori Sohda , Masato Tokishige , Yoichi Shimazawa
CPC分类号： G03G15/0126 , G03G15/0849 , G03G15/0853 , G03G15/0856
摘要： A developing apparatus which includes a plurality of developing units individually provided with sensors for detecting amount of toner accommodated therein, includes a judging device for judging whether or not sensor outputs of other developing units are below a replenishable amount when a sensor output of one developing unit falls below a replenishing requiring amount, and a replenishing display device for urging toner replenishment, based on the result of the above judgement, with respect to the developing unit having the sensor output below the replenishing requiring amount and the developing unit whose sensor output is below the replenishable amount.
摘要翻译： 一种显影装置，包括分别设置有用于检测容纳在其中的调色剂量的传感器的多个显影单元，包括判断装置，用于当一个显影单元的传感器输出时判断其它显影单元的传感器输出是否低于可补充量 低于补充要求量的下一个补充显示装置，以及用于根据上述判断结果促使调色剂补充的补充显示装置相对于传感器输出低于补充要求量的显影单元和传感器输出低于显影单元 可补充金额。
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10.发明授权System for preventing erroneous mounting of developer tanks accommodated in a developing device 失效用于防止容纳在显影装置中的显影剂罐的错误安装的系统
公开(公告)号：US5049930A
公开(公告)日：1991-09-17
申请号：US409931
申请日：1989-09-20
申请人： Tokiyuki Okano , Yoichi Shimazawa , Kazunori Sohda , Kiyoshi Inamoto , Kazuyuki Ohnishi , Masato Tokishige
发明人： Tokiyuki Okano , Yoichi Shimazawa , Kazunori Sohda , Kiyoshi Inamoto , Kazuyuki Ohnishi , Masato Tokishige
CPC分类号： G03G15/0126 , G03G15/0896
摘要： An electrophotographic apparatus is provided with a developing device accommodating a plurality of developer tanks and a system for preventing erroneous mounting of these developer tanks. The developer tanks contain respective developers different in color from each other and are detachably mounted in respective predetermined mounting portions of the developing device. The system includes a connector formed on each of the developer tanks, a fixed connector formed on each of the mounting portions of the developing device and a controller for outputting at least one discrimination signal and judging whether or not the discrimination signal is inputted into the controller through at least one set of connectors. The connectors in each set are electrically connected with each other when each developer tank is properly mounted in its predetermined mounting portion of the developing device.
摘要翻译： 电子照相设备设置有容纳多个显影剂罐的显影装置和用于防止这些显影剂罐错误安装的系统。 显影剂罐包含彼此颜色不同的各个显影剂，并且可拆卸地安装在显影装置的相应的预定安装部分中。 该系统包括形成在每个显影剂罐上的连接器，形成在显影装置的每个安装部分上的固定连接器和用于输出至少一个判别信号的控制器，并判断判别信号是否被输入到控制器 通过至少一组连接器。 当每个显影剂罐正确地安装在其显影装置的预定安装部分中时，每组中的连接器彼此电连接。
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