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公开(公告)号：JP2011175149A
公开(公告)日：2011-09-08
申请号：JP2010039893
申请日：2010-02-25
Applicant: Kyocera Mita Corp , 京セラミタ株式会社
Inventor： ISODA KEISUKE , OBA TADASHI , WATANABE MASARU , ISHIZAKI ATSUSHI , TANAKA HIROKI
CPC classification number: G03G15/0131 , G01D5/34746 , G01P3/68 , G03G15/5058 , G03G2215/00059 , G03G2215/0129 , G03G2215/0161
Abstract: PROBLEM TO BE SOLVED: To accurately measure a linear speed of an intermediate transfer belt or the like, in such a manner that it is made to be hard to receive the influence of an environmental change or a secular change. SOLUTION: A sensor is configured to detect the passage of a mark 41 on the intermediate transfer belt 4, at a plurality of prescribed detection positions 61-1 to 61-10 on the intermediate transfer belt. A linear speed deriving section is configured to specify the time at which the sensor 8 detects the passage of the mark 41, and derive the linear speed of the intermediate transfer belt 4 from the passage time T1 to T10 of the mark 41 at the plurality of detection positions 61-1 to 61-10. COPYRIGHT: (C)2011,JPO&INPIT
Abstract translation: 要解决的问题：为了精确地测量中间转印带等的线速度，使得难以受到环境变化或长期变化的影响。 解决方案：传感器被配置为在中间转印带上的多个规定的检测位置61-1至61-10处检测标记41在中间转印带4上的通过。 线性速度导出部被配置为指定传感器8检测到标记41的通过的时间，并且从多个的标记41的通过时间T1到T10导出中间转印带4的线速度 检测位置61-1〜61-10。 版权所有（C）2011，JPO＆INPIT
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公开(公告)号：JP2009069235A
公开(公告)日：2009-04-02
申请号：JP2007234901
申请日：2007-09-11
Applicant: Kyocera Mita Corp , 京セラミタ株式会社
Inventor： ISHIZAKI ATSUSHI , WATANABE MASARU , NAKATSUJI HIROOMI , KATSUHARA KENJI
Abstract: PROBLEM TO BE SOLVED: To provide a color image forming apparatus that stably outputs a special color without generating gradation whitening and gradation black crush by density-correcting prescribed special color in the same control as a single color.
SOLUTION: When the special color is set by a user, a single color patch whose gradation is nearest out of gradation patterns M, C, Y, K is substituted for special color decomposition patches ms, cs, ys and ks of magenta, cyan, yellow and black obtained to decompose the special color. The gradation patterns after substitution formed on a recording medium are read with an image reading part to prepare γ tables.
COPYRIGHT: (C)2009,JPO&INPITAbstract translation: 要解决的问题：提供一种彩色图像形成装置，其通过在与单一颜色相同的控制中通过密度校正规定的特殊颜色而不产生渐变白化和渐变黑色挤压而稳定地输出特殊颜色。
解决方案：当用户设置特殊颜色时，将灰度级别最接近灰度图案M，C，Y，K的单个色块代替品红色的特殊颜色分解片ms，cs，ys和ks ，青色，黄色和黑色得到分解特殊颜色。 用图像读取部读取在记录介质上形成的替换后的灰度图案，以制备γ表。 版权所有（C）2009，JPO＆INPIT
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公开(公告)号：JP2006065184A
公开(公告)日：2006-03-09
申请号：JP2004249979
申请日：2004-08-30
Applicant: Kyocera Mita Corp , 京セラミタ株式会社
Inventor： ISHIDA HIDEKI , KONDO HIROTO , WATANABE MASARU , ISHIZAKI ATSUSHI
Abstract: PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of forming an image density correction pattern capable of reducing an influence of an noise from an image carrier on the mean value of the signal intensity in detecting the image density correction pattern constituted of a plurality of density patches formed on an image carrier by a sensor, and then, obtaining the mean value of the detected signal intensity. SOLUTION: The image density correction pattern 80 constituted of the plurality of density patches 81a to 81j is formed on the image carrier by an image forming unit. Regarding the low-density patch formed on the image carrier while largely exposing the image carrier, and where the signal intensity detected by the sensor becomes uneven and the signal intensity is easily influenced by the noise from the image carrier, the length of the lower-density patch is made longer in the carrying direction of the image carrier, then, the influence of the image carrier is reduced in obtaining the mean value of the signal intensity. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract translation: 要解决的问题：提供一种图像形成装置，能够形成图像浓度校正图案，该图像浓度校正图案能够在检测构成的图像浓度校正图案时，将来自图像载体的噪声的影响减小为信号强度的平均值 通过传感器形成在图像载体上的多个密度贴片，然后获得检测信号强度的平均值。 解决方案：由图像形成单元在图像载体上形成由多个密度片81a至81j构成的图像浓度校正图案80。 关于形成在图像载体上的低密度贴片，同时在很大程度上暴露图像载体，并且其中由传感器检测到的信号强度变得不均匀，并且信号强度容易受到来自图像载体的噪声的影响， 在图像载体的传送方向上使密度贴片更长，则在获得信号强度的平均值时减小图像载体的影响。 版权所有（C）2006，JPO＆NCIPI
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公开(公告)号：JP2006017772A
公开(公告)日：2006-01-19
申请号：JP2004192621
申请日：2004-06-30
Applicant: Kyocera Mita Corp , 京セラミタ株式会社
Inventor： ISHIZAKI ATSUSHI , KONDO HIROTO , ISHIDA HIDEKI , WATANABE MASARU
Abstract: PROBLEM TO BE SOLVED: To perform color deviation correction and also density correction control in a state where the number of sensors is reduced while considering the variance of the sensitivity characteristic of a photoreceptor drum in an image forming apparatus. SOLUTION: Respective color toner images are successively transferred from the photoreceptor drums 11a to 14a respectively to an image forming area on an intermediate transfer belt 15 to form a color toner image. A pair of toner concentration detecting sensors is arranged at both ends of the image forming area crossing the conveying direction of the intermediate transfer belt, and the color deviation correction is performed according to output from the toner concentration sensors. Sensitivity distribution in the shaft direction of the corresponding photoreceptor drum is stored in storage parts 11c to 14c as sensitivity characteristic distribution. In controlling image density, one of the toner concentration sensors is set as a sensor for controlling image density and a toner patch of every color is successively formed by the photoreceptor drum on the intermediate transfer belt corresponding to the arranging position of the sensor for controlling the image density, and developing bias corresponding to reference toner concentration preset is obtained from the result of density detection that toner patch density is detected by the sensor for controlling the image density to correct the developing bias according to the sensitivity characteristic distribution. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract translation: 要解决的问题：在考虑图像形成装置中的感光鼓的灵敏度特性的变化的同时，在传感器的数量减少的状态下进行颜色偏差校正和浓度校正控制。 解决方案：各个彩色调色剂图像分别从感光鼓11a至14a分别转印到中间转印带15上的图像形成区域上以形成彩色调色剂图像。 一对调色剂浓度检测传感器布置在与中间转印带的输送方向交叉的图像形成区域的两端，并且根据调色剂浓度传感器的输出进行颜色偏差校正。 相应的感光鼓的轴向的灵敏度分布作为灵敏度特性分布被存储在存储部分11c至14c中。 在控制图像浓度时，将调色剂浓度传感器中的一个设置为用于控制图像浓度的传感器，并且由中央转印带上的感光鼓连续地形成每种颜色的调色剂贴片，该传感器对应于用于控制图像浓度的传感器的布置位置 根据浓度检测的结果，从由感光体检测到的调色剂色块密度根据灵敏度特性分布来校正图像浓度来校正显影偏压，从图像浓度和显影偏压得到预定的图像浓度。 版权所有（C）2006，JPO＆NCIPI
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公开(公告)号：JP2005338673A
公开(公告)日：2005-12-08
申请号：JP2004160506
申请日：2004-05-31
Applicant: Kyocera Mita Corp , 京セラミタ株式会社
Inventor： WATANABE MASARU , KONDO HIROTO , ISHIDA HIDEKI , ISHIZAKI ATSUSHI
Abstract: PROBLEM TO BE SOLVED: To remove the effect of the irregular texture of an intermediate transfer body when a long-durable image-forming apparatus using the intermediate transfer body forms a toner image for image density correction onto the intermediate transfer body and corrects the image density based upon data obtained by detecting the toner image with a sensor. SOLUTION: The apparatus measures time t1 needed for a rotating-time measurement pattern to be detected by the sensor after an optical scanning unit starts exposure for forming the rotating-time measurement pattern, composed of a toner image, onto the intermediate transfer body, and time t2 needed for the rotating-time measurement pattern to be detected again after the detection. The timing of measuring the texture of the intermediate transfer body and the timing of forming the toner image for the image density correction are adjusted based upon the times t1 and t2 and preset time T. Thus, the detected position of the toner image for the image density correction and the detected position of the base are made to coincide with each other. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract translation: 要解决的问题：为了消除中间转印体的不规则纹理的影响，当使用中间转印体的耐久久久的图像形成装置在中间转印体上形成用于图像浓度校正的调色剂图像并校正时 基于通过用传感器检测调色剂图像而获得的数据的图像浓度。 解决方案：在光学扫描单元开始曝光之后，该装置测量由传感器检测的旋转时间测量图案所需的时间t1，以形成由调色剂图像组成的旋转时间测量图案到中间转印 在检测后再次检测旋转时间测量图案所需的身体和时间t2。 基于时间t1和t2以及预设时间T来调整测量中间转印体的质地的时间和形成用于图像浓度校正的调色剂图像的定时。因此，图像的调色剂图像的检测位置 浓度校正和基底的检测位置彼此一致。 版权所有（C）2006，JPO＆NCIPI
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Patent Agency Ranking
公开(公告)号：JP2005070670A
公开(公告)日：2005-03-17
申请号：JP2003303444
申请日：2003-08-27
Applicant: Kyocera Mita Corp , 京セラミタ株式会社
Inventor： WATANABE MASARU
Abstract: PROBLEM TO BE SOLVED: To provide an image forming apparatus carrying out an accurate density compensation in image formation by reducing the difference between density of an image for density compensation and density of an actual image in image formation. SOLUTION: In the image forming apparatus, when the peripheral length of a developer carrier is L and the ratio of circumferential speed of the developer carrier to the circumferential speed of a latent image carrier is N, the density compensation image is formed with its length in the proceeding direction to be not lower than L/N. The density compensation image is detected a plurality of times by a density detection means at staggered times while being moved the distance L/N against the density detection means by carrying of a transfer belt. The image density in image formation is compensated by the image compensation means based on the average value of the density acquired by the plurality of times of detection. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract translation: 要解决的问题：提供一种图像形成装置，其通过减少图像形成中的图像的浓度与实际图像的浓度之间的差异来进行图像形成中的精确的浓度补偿。 解决方案：在图像形成装置中，当显影剂载体的周长为L，显影剂载体的圆周速度与潜像载体的圆周速度的比率为N时，形成浓度补偿图像 其行进方向的长度不得低于L / N。 通过密度检测装置在交错时间多次检测浓度补偿图像，同时通过传送转印带将距离L / N移动到密度检测装置上。 基于通过多次检测获取的浓度的平均值，图像补偿装置补偿图像形成中的图像浓度。 版权所有（C）2005，JPO＆NCIPI
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公开(公告)号：JP2004177608A
公开(公告)日：2004-06-24
申请号：JP2002342742
申请日：2002-11-26
Applicant: Kyocera Mita Corp , 京セラミタ株式会社
Inventor： WATANABE MASARU , KATSUHARA KENJI
Abstract: PROBLEM TO BE SOLVED: To accurately measure a toner sticking amount on a toner image carrying means (for instance, transfer belt) in an image forming apparatus. SOLUTION: Light from a light emitting element 12 is made single polarized light by a polarizing filter 15. A polarized light splitting prism 16 splits reflected light to 1st polarized light same as projected light and 2nd polarized light different therefrom, and light receiving elements 13 and 14 receive the 1st polarized light and the 2nd polarized light respectively and output 1st and 2nd light receiving output signals. The toner sticking amount on the toner image carrying means is obtained in accordance with a difference between the 1st and the 2nd light receiving output signals. In such a case, the output levels of the elements 13 and 14 are adjusted to make the levels of the 1st and the 2nd light receiving output signals obtained when the specified amount of toner stickes to the transfer belt equal, a difference between the 1st and the 2nd light receiving output signals obtained in a state where the toner does not stick to the transfer belt is set as a reference value, and a difference between the 1st and the 2nd light receiving output signals in the case of forming a toner image on the transfer belt is corrected in accordance with the reference value so as to obtain a correction output value, whereby the toner sticking amount on the transfer belt is obtained in accordance with the correction output value. COPYRIGHT: (C)2004,JPO
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8.发明专利Toner concentration sensor, image forming device, and toner concentration sensor design method 审中-公开调色剂浓度传感器，图像形成装置和调色剂浓度传感器设计方法
公开(公告)号：JP2012073030A
公开(公告)日：2012-04-12
申请号：JP2010215841
申请日：2010-09-27
Applicant: Kyocera Mita Corp , 京セラミタ株式会社
Inventor： ISODA KEISUKE , ISHIZAKI ATSUSHI , WATANABE MASARU , OBA TADASHI
Abstract: PROBLEM TO BE SOLVED: To obtain a toner concentration sensor having an aperture with a diameter allowing excellent accuracy in detecting a toner concentration, and an image forming device, as well as a method of designing the toner concentration sensor.SOLUTION: A diaphragm 52 is placed between a light source 51 and a beam splitter 53. An aperture is formed in the diaphragm 52. The aperture has a diameter D specified based on an incident angle corresponding to desired transmittance considering transmittance characteristics of the beam splitter 53 regarding the incident angle.
Abstract translation: 要解决的问题：为了获得具有允许检测调色剂浓度的高精度直径的孔的调色剂浓度传感器和图像形成装置以及调色剂浓度传感器的设计方法。 解决方案：光阑52被放置在光源51和光束分离器53之间。在光阑52中形成有孔。孔径具有基于与期望透射率相对应的入射角度所规定的直径D，考虑透光率特性 分束器53关于入射角。 版权所有（C）2012，JPO＆INPIT
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公开(公告)号：JP2011209686A
公开(公告)日：2011-10-20
申请号：JP2010243087
申请日：2010-10-29
Applicant: Kyocera Mita Corp , 京セラミタ株式会社
Inventor： WATANABE MASARU , OBA TADASHI , ISHIZAKI ATSUSHI , ISODA KEISUKE , TANAKA HIROKI
Abstract: PROBLEM TO BE SOLVED: To uniform all line intervals in a toner image in the case of using a multibeam system exposure device, in an image forming apparatus.SOLUTION: A print engine 11 controls an exposure device 2, forms a toner patch image from one (the fourth beam, for example) of N pieces (N=4, for example) of beams onto an intermediate transfer belt, forms the next toner patch image from the other one (the first beam, for example) of the N pieces of beams, and controls rotation speed of photoreceptor drums 1a-1d so that line intervals in a sub scanning direction in the toner image become uniform, based on the difference of passage time of two patch images at a prescribed detection position and liner speed of the intermediate transfer belt 4.
Abstract translation: 要解决的问题：在使用多光束系统曝光装置的情况下，在图像形成装置中使调色剂图像中的所有行间隔均匀化。解决方案：打印引擎11控制曝光装置2，从一个 （例如，第四光束）N个（例如，N = 4）的光束到中间转印带上，从另一个（例如第一光束）形成下一个调色剂图像 并且控制感光鼓1a-1d的旋转速度，使得调色剂图像中副扫描方向上的线间隔基于规定检测位置处的两个贴片图像的通过时间的差异和中间体的衬垫速度， 转印带4。
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公开(公告)号：JP2011154218A
公开(公告)日：2011-08-11
申请号：JP2010016040
申请日：2010-01-27
Applicant: Kyocera Mita Corp , 京セラミタ株式会社
Inventor： WATANABE MASARU
CPC classification number: G03G15/0131 , G03G15/5058 , G03G2215/00059 , G03G2215/00063 , G03G2215/0132 , G03G2215/0164
Abstract: PROBLEM TO BE SOLVED: To appropriately perform monochrome and color density correction, in particular, to further reduce the undesired monochrome density correction, then, to suppress toner deterioration, and also, to suppress a reduction in printing speed due to an interruption caused by the density correction. SOLUTION: The image forming apparatus includes: a storage device 12 that stores print ratio data 32 measured with time; and a print engine 11 that individually perform the monochrome density correction and the color density correction on the basis of a prescribed first condition (e.g., condition concerning the integrated value of the number of printed sheets or the printing periods). If the first condition in the monochrome printing is met, the print engine 11 does not perform the monochrome density correction if a predetermined second condition concerning an amount of variation in the print ratio identified from the print ratio data is also met, on the other hand, if the second condition is not met, perform the monochrome density correction. COPYRIGHT: (C)2011,JPO&INPIT
Abstract translation: 要解决的问题：为了适当地执行单色和色浓度校正，特别是为了进一步减少不期望的单色浓度校正，则抑制调色剂劣化，并且抑制由于中断引起的打印速度的降低 造成密度校正。 解决方案：图像形成装置包括：存储装置12，其存储随时间测量的打印比率数据32; 以及基于规定的第一条件（例如，关于打印片材的数量或打印周期的积分值的条件）单独执行单色浓度校正和颜色浓度校正的打印引擎11。 如果满足单色打印中的第一条件，则如果满足从打印比数据识别的打印比的变化量的预定的第二条件，则打印引擎11不执行单色浓度校正，另一方面 ，如果不符合第二条件，则执行单色浓度校正。 版权所有（C）2011，JPO＆INPIT
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