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1. 发明授权

US5694223A Digital image forming apparatus which specifies a sensitivity characteristic of a photoconductor 失效
标题翻译：指定光电导体的灵敏度特性的数字图像形成装置
公开(公告)号：US5694223A
公开(公告)日：1997-12-02
申请号：US611718
申请日：1996-03-06
申请人： Kentaro Katori , Toshifumi Watanabe , Yukihiko Okuno , Masaki Tanaka , Hironobu Nakata , Katsuyuki Hirata
发明人： Kentaro Katori , Toshifumi Watanabe , Yukihiko Okuno , Masaki Tanaka , Hironobu Nakata , Katsuyuki Hirata
IPC分类号： G03G15/00 , H04N1/407 , H04N1/00 , G03F3/08 , G03G21/00 , H04N1/46
CPC分类号： G03G15/5041 , G03G15/5037 , H04N1/407 , G03G2215/00042
摘要： A printer control unit carries out a predetermined calculation based on the amount of adhering toner detected by an AIDC sensor and the surface potential of a photoconductor detected by a V sensor to correct the light emission intensity of a light source to prepare light emission characteristic data for .gamma. correction to obtain an optimal image. A .gamma. correcting unit corrects an image signal output from an image signal processing unit using the calculated light emission characteristic data for .gamma. correction to control the light source to emit light based on the corrected data. More specifically, since the .gamma. correction data is obtained by calculation, optimal .gamma. correction can always be carried out without a memory of a large capacity.
摘要翻译：打印机控制单元基于由AIDC传感器检测到的附着调色剂的量和由V传感器检测的感光体的表面电位进行预定的计算，以校正光源的发光强度，以准备用于伽马校正以获得最佳图像。伽马校正单元使用所计算的用于伽马校正的发光特性数据来校正从图像信号处理单元输出的图像信号，以基于校正数据控制光源发光。更具体地，由于通过计算获得伽马校正数据，所以可以总是在没有大容量的存储器的情况下执行最佳伽马校正。

2. 发明授权

US5708918A Image formation apparatus that can maintain appropriately toner density in developing device 失效
标题翻译：可以适当地保持显影装置中的调色剂密度的图像形成装置
公开(公告)号：US5708918A
公开(公告)日：1998-01-13
申请号：US727319
申请日：1996-10-08
申请人： Yukihiko Okuno , Masaki Tanaka , Naoyoshi Kinoshita , Atsushi Kawai , Toshifumi Watanabe
发明人： Yukihiko Okuno , Masaki Tanaka , Naoyoshi Kinoshita , Atsushi Kawai , Toshifumi Watanabe
IPC分类号： G03G15/00 , G03G15/01 , G03G15/08 , G03G15/10
CPC分类号： G03G15/5041 , G03G15/01 , G03G15/0855 , G03G2215/00042 , G03G2215/00063
摘要： An image formation apparatus for forming a full color image in the four colors of cyan, magenta, yellow and black has a optical ATDC sensor attached in a cyan developing device to control the toner density under optical ATDC. A black developing device has the toner density controlled by AIDC. A standard develop efficiency .eta.STD of the cyan developing device obtained as a result of the AIDC is compared with a develop efficiency .eta. of black toner. The toner supply amount of the black developing device is determined according to the comparison result to supply the toner. Thus, an image formation apparatus is provided that can detect at favorable accuracy the toner density of a developing device incorporating a developer of which the toner density cannot be detected using optical ATDC to supply a required amount of toner.
摘要翻译：用于形成青色，品红色，黄色和黑色四种颜色的全色图像的图像形成装置具有安装在青色显影装置中的光学ATDC传感器，以控制光学ATDC下的调色剂密度。黑色显影装置具有由AIDC控制的调色剂浓度。将由AIDC获得的青色显影装置的标准开发效率等级STD与黑色调色剂的显影效率η进行比较。根据比较结果确定黑色显影装置的调色剂供应量以供应调色剂。因此，提供了能够以良好的精确度检测包含使用光学ATDC不能检测调色剂浓度的显影剂的显影装置的调色剂浓度来提供所需量的调色剂的图像形成装置。

3. 发明授权

US5978615A Tandem-type image forming apparatus and image forming condition determination method used in this tandem-type image forming apparatus 有权
标题翻译：串联式图像形成装置和图像形成条件确定方法，用于该串列型图像形成装置
公开(公告)号：US5978615A
公开(公告)日：1999-11-02
申请号：US162222
申请日：1998-09-28
申请人： Masaki Tanaka , Yukihiko Okuno , Toshifumi Watanabe
发明人： Masaki Tanaka , Yukihiko Okuno , Toshifumi Watanabe
IPC分类号： G03G15/00 , G03G15/01 , G03G15/16 , G03G15/14
CPC分类号： G03G15/5062 , G03G15/0194 , G03G15/5058 , G03G2215/00059 , G03G2215/00063 , G03G2215/00067 , G03G2215/0119
摘要： Using an image forming apparatus, toner images are respectively formed on photosensitive drums of image forming units set along a transport belt, and the toner images are transferred onto the transport belt or a recording sheet transported on the transport belt to form a color image. The image forming apparatus is composed of a first density detecting sensor for detecting a density of a toner image formed on the recording sheet or the transport belt at the upstream side of each transfer position of at least one image forming unit which is located at the downstream side of a first image forming unit in a transport direction of the transport belt and which is selected as a subject of an image forming condition determination, a second density detecting sensor for detecting a density of the toner image formed on the recording sheet or the transport belt at the downstream side of the transfer position, and an image forming condition determining unit for comparing a detection value given by the first density detecting sensor with a detection value given by the second density detecting sensor and for determining an image forming condition in accordance with the comparison result for an image formation performed by the image forming unit selected as the subject.
摘要翻译：使用图像形成装置，将调色剂图像分别形成在沿着传送带设置的图像形成单元的感光鼓上，并且将调色剂图像转印到在传送带上传送的传送带或记录片材上以形成彩色图像。图像形成装置由用于检测在位于下游的至少一个图像形成单元的每个转印位置的上游侧的记录纸或输送带上形成的调色剂图像的浓度的第一浓度检测传感器在输送带的运送方向上的第一图像形成单元的侧面，并且被选择为图像形成条件确定的对象;第二密度检测传感器，用于检测形成在记录片材上的调色剂图像的浓度或运送皮带在转印位置的下游侧，以及图像形成条件确定单元，用于将由第一密度检测传感器给出的检测值与由第二密度检测传感器给出的检测值进行比较，并且用于根据由作为对象选择的图像形成单元执行的图像形成的比较结果。

4. 发明授权

US6021288A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US6021288A
公开(公告)日：2000-02-01
申请号：US157495
申请日：1998-09-21
申请人： Yukihiko Okuno , Masaki Tanaka , Toshifumi Watanabe
发明人： Yukihiko Okuno , Masaki Tanaka , Toshifumi Watanabe
IPC分类号： B41J29/393 , G03G15/00 , G03G15/08
CPC分类号： G03G15/5041 , B41J29/393 , G03G15/5037 , G03G2215/00042
摘要： A digital copying machine develops an electrostatic latent image formed on a photosensitive drum with toner, and transfers the developed image onto a sheet. In forming images on the photosensitive drum successively, three types of test patterns are formed in order in intro-image areas between image forming areas, and AIDC is made. The first test pattern is a low-density pattern, the second test pattern is an intermediate-density pattern, and the third test pattern is a high-density pattern.
摘要翻译：数字复印机利用调色剂显影形成在感光鼓上的静电潜像，并将显影的图像转印到片材上。在感光鼓上依次形成图像时，在图像形成区域之间的内部图像区域中依次形成三种类型的测试图案，并且制作AIDC。第一测试图案是低密度图案，第二测试图案是中密度图案，第三测试图案是高密度图案。

5. 发明授权

US5530530A Apparatus for measuring developer density 失效
标题翻译：用于测量显影剂密度的装置
公开(公告)号：US5530530A
公开(公告)日：1996-06-25
申请号：US435813
申请日：1995-05-05
申请人： Masaki Tanaka , Atsushi Kawai , Tetsuya Sakai , Naoyoshi Kinoshita , Yukihiko Okuno
发明人： Masaki Tanaka , Atsushi Kawai , Tetsuya Sakai , Naoyoshi Kinoshita , Yukihiko Okuno
IPC分类号： G01N21/47 , G03G15/08 , G03G21/00
CPC分类号： G03G15/0855 , G03G15/0893 , G03G2215/0897
摘要： Developer density measuring apparatus comprising a transparent detection window confronting the interior of a developing device, illumination means for illuminating developer comprising a toner and a carrier accommodated in said developing device, and density determining means for determining developer density by the amount of light reflected from said developer measured through said transparent detection window, and wherein the surface of the transparent detection window on the side confronting the interior of the developing device is roughened.
摘要翻译：显影剂密度测量装置，包括面向显影装置内部的透明检测窗口，照明装置，用于照亮包含调色剂的显影剂和容纳在所述显影装置中的载体;以及浓度确定装置，用于根据所述显影装置的反射光量确定显影剂浓度显影剂通过所述透明检测窗测量，并且其中在与显影装置内部相对的一侧上的透明检测窗口的表面被粗糙化。

6. 发明授权

US5724627A Image forming apparatus which calculates toner consumption in accordance with tone correction 失效
标题翻译：根据色调校正计算调色剂消耗的图像形成装置
公开(公告)号：US5724627A
公开(公告)日：1998-03-03
申请号：US558103
申请日：1995-11-17
申请人： Yukihiko Okuno , Masaki Tanaka , Naoyoshi Kinoshita
发明人： Yukihiko Okuno , Masaki Tanaka , Naoyoshi Kinoshita
IPC分类号： G03G15/00 , G03G15/08 , H04N1/29 , H04N1/407
CPC分类号： H04N1/295 , G03G15/0849 , G03G15/5041 , G03G15/556
摘要： In an electrophotographic image forming apparatus, a correction coefficient corresponding to each density level of toner consumption of a developing device is determined in accordance with a selected tone correction method, and/or the ratio of the emission period to the non-emission period of a light source. A toner consumption calculator multiplies the correction coefficients by the number of pixels of each density level of document image data, and determines the amount of toner consumed by the developing device from the sum total value of the multiplication results determined for each density level. A toner replenishment device resupplies toner to the developing device based on the determined amount of consumed toner. As a result, a constant toner concentration Tc normally can be maintained because toner is resupplied based on the calculated amount of toner consumption.
摘要翻译：在电子照相图像形成装置中，根据选择的色调校正方法确定与显影装置的调色剂消耗的每个浓度水平相对应的校正系数，和/或发光周期与非发光周期的比率光源。调色剂消耗计算器将校正系数乘以文档图像数据的每个浓度水平的像素数，并且根据为每个浓度水平确定的相乘结果的总和值确定显影装置消耗的调色剂量。调色剂补充装置基于所确定的消耗的调色剂量将调色剂重新供应到显影装置。结果，通常可以基于计算的调色剂消耗量来调节调色剂再供给，因此可以保持恒定的调色剂浓度Tc。

7. 发明授权

US5708917A Toner replenishment device for an image forming apparatus which employs pixel density and toner density information 失效
标题翻译：用于图像形成装置的调色剂补充装置，其采用像素密度和调色剂浓度信息
公开(公告)号：US5708917A
公开(公告)日：1998-01-13
申请号：US611215
申请日：1996-03-05
申请人： Atsushi Kawai , Masaki Tanaka , Tetsuya Sakai , Yukihiko Okuno
发明人： Atsushi Kawai , Masaki Tanaka , Tetsuya Sakai , Yukihiko Okuno
IPC分类号： G03G15/00 , G03G15/01 , G03G15/08 , H04N1/29
CPC分类号： G03G15/0849 , G03G15/0853 , G03G15/0855 , G03G15/556 , G03G2215/00037
摘要： The image forming apparatus is provided with a detecting means for detecting transfer efficiency when transferring a toner image from a photosensitive member to a transfer sheet, and a developing efficiency changing means for changing developing efficiency based on the transfer efficiency detected by the detecting means, and corrects the toner consumption predicted by the predicting means based on the transfer efficiency as detected by the detecting means, so as to determine the amount of toner to be replenished. When the developing efficiency is changed based on the transfer efficiency, toner consumption also changes, and does not match the predicted toner consumption. According to the present invention, toner concentration in a developer can be even more accurately controlled by correcting the predicted toner consumption by the change in transfer efficiency. Detection of transfer efficiency is achieved by a method of indirectly detecting humidity in the apparatus, or a method of measuring the amount of toner transferred to a transfer member.
摘要翻译：图像形成装置设置有用于在将调色剂图像从感光构件转印到转印纸上时检测转印效率的检测装置，以及用于基于由检测装置检测的转印效率来改变显影效率的显影效率改变装置，以及基于由检测装置检测的转印效率来校正由预测装置预测的调色剂消耗量，以便确定要补充的调色剂的量。当基于转印效率改变显影效率时，调色剂消耗也改变，并且与预测的调色剂消耗不匹配。根据本发明，通过根据转印效率的变化校正预测的调色剂消耗，可以更加准确地控制显影剂中的调色剂浓度。通过间接检测设备中的湿度的方法或测量转印到转印部件的调色剂量的方法来实现转印效率的检测。

8. 发明授权

US5860041A Device for measuring toner concentration in developer comprising toner and carrier 失效
标题翻译：用于测量包含调色剂和载体的显影剂中的调色剂浓度的装置
公开(公告)号：US5860041A
公开(公告)日：1999-01-12
申请号：US964891
申请日：1997-11-05
申请人： Masaki Tanaka , Kuniya Matsuura , Toshifumi Watanabe
发明人： Masaki Tanaka , Kuniya Matsuura , Toshifumi Watanabe
IPC分类号： G01N21/47 , G03G15/08
CPC分类号： G03G15/0855 , G03G15/0893 , G03G2215/0894
摘要： A device for measuring toner concentration of developer housed in a developing system, which developer comprising toner and carrier. The device has a transparent detection window facing the interior of the developing system, which transparent detection window comprising a first transparent plate member and a second transparent plate member being in contact with the first transparent plate member. The first transparent plate member is made of a material which becomes charged, through its contact with the second transparent plate member, with the opposite polarity from the charge polarity of the toner and the second transparent plate member is made of a material which becomes charged, through its contact with the carrier, with the same polarity from the charge polarity of the toner, so that the second transparent plate member strongly repels the toner having the same polarity charge and adherence of the toner to the second transparent plate member is reliably prevented.
摘要翻译：用于测量容纳在显影系统中的显影剂的调色剂浓度的装置，该显影剂包括调色剂和载体。该装置具有面向显影系统内部的透明检测窗口，该透明检测窗口包括与第一透明板构件接触的第一透明板构件和第二透明板构件。第一透明板构件由与第二透明板构件的接触成为带电的材料制成，其极性与调色剂的充电极性相反，第二透明板构件由变成带电的材料制成，通过其与载体的接触，与调色剂的电荷极性具有相同的极性，使得第二透明板构件强烈排斥具有相同极性电荷的调色剂并且可靠地防止调色剂对第二透明板构件的粘附。

9. 发明授权

US06285839B1 Image forming apparatus having function for automatically adjusting image forming condition 有权
标题翻译：具有自动调整图像形成条件功能的图像形成装置
公开(公告)号：US06285839B1
公开(公告)日：2001-09-04
申请号：US09251457
申请日：1999-02-17
申请人： Masaki Tanaka , Tetsuya Sakai , Futoshi Hamada , Toshifumi Watanabe
发明人： Masaki Tanaka , Tetsuya Sakai , Futoshi Hamada , Toshifumi Watanabe
IPC分类号： G03G1500
CPC分类号： G03G15/5058 , G03G15/0194 , G03G2215/00042 , G03G2215/00059 , G03G2215/00063 , G03G2215/00067
摘要： A tandem-type image forming apparatus forms a color image by transferring images formed by a plurality of image forming units set along a transfer belt onto a recording sheet transported by the transfer belt. The tandem-type image forming apparatus includes a plurality of detecting units, each detecting a toner image formed by a corresponding image forming unit to obtain the amount of toner in the toner image, a standard pattern formation controlling unit for controlling one of the image forming units to form a standard pattern to be detected by the detecting units, a sensitivity obtaining unit for obtaining a value as an evaluation value that is outputted by each of the detecting units on detecting the standard pattern, and an detection output adjusting unit for adjusting a value outputted by the detecting unit in accordance with the evaluation value. An image forming condition is set for each of the image forming units in accordance with the adjusted value, and image formation is performed under the image forming conditions.
摘要翻译：串联型图像形成装置通过将由沿着转印带设置的多个图像形成单元形成的图像转印到由转印带传送的记录纸上而形成彩色图像。串联型图像形成装置包括多个检测单元，每个检测单元检测由相应图像形成单元形成的调色剂图像以获得调色剂图像中的调色剂量;标准图案形成控制单元，用于控制图像形成单元，以形成由检测单元检测的标准图案;灵敏度获取单元，用于获得作为每个检测单元在检测标准图案时输出的评估值的值;以及检测输出调整单元，用于调整由检测单元根据评估值输出的值。根据调整值为每个图像形成单元设置图像形成条件，并且在图像形成条件下执行图像形成。

10. 发明授权

US08879912B2 Bandwidth control method, communication system, and communication device 有权
标题翻译：带宽控制方法，通信系统和通信设备
公开(公告)号：US08879912B2
公开(公告)日：2014-11-04
申请号：US13522992
申请日：2010-01-28
申请人： Seiji Kozaki , Takashi Nishitani , Masaki Tanaka
发明人： Seiji Kozaki , Takashi Nishitani , Masaki Tanaka
IPC分类号： H04B10/20 , H04B10/08 , H04B10/00 , H04J14/00 , H04L12/12 , H04L12/911 , H04Q11/00
CPC分类号： H04L12/12 , H04L47/781 , H04Q11/0067 , H04Q2011/0064 , H04Q2011/0079 , Y02D50/20 , Y02D50/40
摘要： A bandwidth control method used in a case where, for example, a first communication device (OLT) allocates a bandwidth for signal transmission to each of a plurality of second communication devices (ONUs) connected to the OLT in a communication system having the OLT and the ONUs includes a sleep controlling of shifting devices among the ONUs that satisfy a predetermined condition into a power saving state, a control-target selecting of selecting control target devices among the ONUs based on a result of performing the sleep controlling, and a bandwidth determining of determining a bandwidth to be allocated to the selected control target devices.
摘要翻译：在例如第一通信设备（OLT）在具有OLT的通信系统中为连接到OLT的多个第二通信设备（ONU）中的每一个分配信号传输带宽的情况下使用的带宽控制方法，以及 ONU包括对满足预定条件的ONU中的移动设备进行省电状态的睡眠控制，基于执行睡眠控制的结果在ONU中选择控制对象设备的控制对象选择，以及带宽决定确定要分配给所选择的控制目标设备的带宽。

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