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    • 2. 发明授权
    • Method of determining and correcting processing state of photosensitive
material based on mahalanobis calculation
    • 基于马哈拉诺比斯计算确定和校正感光材料的处理状态的方法
    • US06117601A
    • 2000-09-12
    • US328592
    • 1999-06-10
    • Yukihiko KanazawaShinzo KishimotoJun OkamotoYoshio IshiiYoshihiro Fujita
    • Yukihiko KanazawaShinzo KishimotoJun OkamotoYoshio IshiiYoshihiro Fujita
    • G03D13/00G05B23/02G03F9/00
    • G03D13/007
    • The state of a photosensitive material processing solution is easily determined from values of multi-dimensional analysis by utilizing Mahalanobis distance. The Mahalanobis distance is calculated, and a determination is made as to whether or not the Mahalanobis distance is greater than or equal to a threshold value. If the Mahalanobis distance is less than the threshold value, the processing solution is determined to be normal, the Mahalanobis distance is displayed on a display unit, and a determination is made as to whether or not the number of sets m of normal values has become greater than or equal to a predetermined value m.sub.0. If m.gtoreq.m.sub.0, data of the characteristic values in the oldest set in a time series is deleted, and a set of data of newly detected characteristic values is added to calculate the Mahalanobis distance and update a database. If the Mahalanobis distance is greater than or equal to the predetermined value, a developing solution is determined to have become abnormal, the degree of abnormality is displayed, factors which caused the abnormality are determined, a corrective measure is determined on the basis of a combination pattern of factors, and the measure is displayed.
    • 感光材料处理溶液的状态通过利用马氏距离的多维分析的值容易地确定。 计算马哈拉诺比斯距离,并且确定马哈拉诺比斯距离是否大于或等于阈值。 如果马氏距离小于阈值,则处理方案被确定为正常,在显示单元上显示马哈拉诺比斯距离,并且确定正常值的集合m是否已经变成 大于或等于预定值m0。 如果m> / = m0,则删除时间序列中最旧集合中的特征值的数据,并且添加新检测到的特征值的一组数据以计算马氏距离并更新数据库。 如果马氏距离大于或等于预定值,则确定显影液变得异常,显示异常程度,确定引起异常的因素,基于组合确定校正措施 因素模式,并显示措施。
    • 3. 发明申请
    • Image forming apparatus and image forming method
    • 图像形成装置及图像形成方法
    • US20100149567A1
    • 2010-06-17
    • US12654100
    • 2009-12-10
    • Yukihiko KanazawaYoshiaki InoueHirofumi Saita
    • Yukihiko KanazawaYoshiaki InoueHirofumi Saita
    • H04N1/60
    • H04N1/6033H04N1/40006
    • An image forming apparatus has: a recording head for forming an image on a recording medium; a color correction processing device which performs a color correction processing with respect to an input image data; an image output controller which controls the recording head according to the image data after performing the color correction processing in such a manner that the image corresponding to the image data is formed on the recording medium; a patch forming controller which controls the recording head so as to form a patch for colorimetry on the recording medium; a memory device for storing an output condition for forming the image, and measured results of the patch for colorimetry formed under the output condition; and a correction data change device which changes a correction data used for the color correction processing performed by the color correction processing device, when difference between the measured results of the patch for colorimetry that are obtained by forming the patch for colorimetry and performing colorimetry of that formed patch before starting of a printing job or during performing the printing job and the measured results of the patch for colorimetry that are stored in the memory device exceeds a predetermined acceptable range.
    • 图像形成装置具有:用于在记录介质上形成图像的记录头; 颜色校正处理装置,对输入图像数据进行颜色校正处理; 图像输出控制器,其以在图像数据对应的图像形成在记录介质上的方式进行颜色校正处理之后根据图像数据来控制记录头; 贴片形成控制器,其控制记录头,以便在记录介质上形成用于比色法的贴片; 用于存储用于形成图像的输出条件的存储装置,以及在输出条件下形成的用于比色法的贴片的测量结果; 以及校正数据改变装置,其改变由颜色校正处理装置执行的用于颜色校正处理的校正数据,当通过形成用于比色法的贴片并进行比色法的比色法获得的用于比色法的贴片的测量结果之间的差异 在打印作业开始之前或在执行打印作业期间形成的补丁,并且存储在存储器件中的用于比色法的补丁的测量结果超过预定的可接受范围。