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    • 5. 发明授权
    • Image forming apparatus and toner supply control program for the same
    • 图像形成装置和调色剂供应控制程序相同
    • US07657194B2
    • 2010-02-02
    • US11899475
    • 2007-09-06
    • Tatsuya TanakaKatsuhiro NagayamaTakashi KitagawaMasayuki Otsuka
    • Tatsuya TanakaKatsuhiro NagayamaTakashi KitagawaMasayuki Otsuka
    • G03G15/08
    • G03G15/0877G03G15/0849G03G15/0893G03G2215/0888
    • A digital color copier includes: a toner concentration storage which stores a detected toner concentration of each developer block of multiple developer blocks across an image forming width; a toner consumption predictor for predicting a first predicted toner consumption of toner consumed from developer of every developer block during a first circulation; a toner concentration estimator for estimating, for every developer block, a toner supply point estimate as the toner concentration at a point where toner is supplied, by subtracting the first predicted toner consumption from the associated detected toner concentration and setting up a toner supply target value of the toner to be supplied from a toner supply device to a developing device in accordance with the predicted toner consumption during a second circulation of the developer inside the developing device that follows the first circulation.
    • 数字彩色复印机包括:调色剂浓度存储器,其存储跨越图像形成宽度的多个显影剂块的每个显影剂块的检测到的调色剂浓度; 调色剂消耗预测器,用于预测在第一循环期间从每个显影剂块的显影剂消耗的调色剂的第一预测调色剂消耗量; 调色剂浓度估计器,用于通过从相关检测到的调色剂浓度中减去第一预测调色剂消耗量并设置调色剂供给目标值,为每个显影剂块估计调色剂供应点估计值作为调色剂供应点的调色剂浓度 根据在第一次循环之后的显影装置内的显影剂的第二次循环期间预测的调色剂消耗量,将从调色剂供应装置供应到显影装置的调色剂。
    • 7. 发明授权
    • Image processing apparatus, image forming apparatus, control program, and computer-readable recording medium
    • 图像处理装置,图像形成装置,控制程序和计算机可读记录介质
    • US07551320B2
    • 2009-06-23
    • US11514211
    • 2006-09-01
    • Tomoe MatsuokaTatsuya TanakaKyosuke Taka
    • Tomoe MatsuokaTatsuya TanakaKyosuke Taka
    • G06F15/00
    • H04N1/6022H04N1/6097
    • An image processing apparatus of the present invention includes: a signal correction means which corrects, in an RGB color space, RGB tone data which is RGB image data; and a comparison section which compares (i) a tonal value of a white point which is neither an origin nor maximum tonal values of R, G, and B in the RGB color space, and where tonal values of R, G, and B are identical to one another, with (ii) respective tonal values of R, G, B of the RGB tone data. (A) In case where the tonal values of R, G, and B are determined to be larger than the white point, the signal correction means corrects the tonal values of R, G, and B to be close to the white point. (B) In case where the tonal values of R, G, and B of the RGB tone data is determined to be smaller than the white point, the signal correction section corrects they tonal values of R, G, and B of the RGB tone data to be away from the white point. As a result, undercolor processing is precisely executed while the color reproducibility in a highlight is maintained.
    • 本发明的图像处理装置包括:信号校正装置,其在RGB颜色空间中校正作为RGB图像数据的RGB色调数据; 和比较部分,其比较(i)在RGB颜色空间中既不是原点也不是R,G和B的最大色调值的白点的色调值,并且R,G和B的色调值是 与(ii)RGB色调数据的R,G,B的各自的色调值相同。 (A)当确定R,G和B的色调值大于白点的情况下,信号校正装置将R,G和B的色调值校正为接近于白点。 (B)当RGB色调数据的R,G和B的色调值被确定为小于白点的情况下,信号校正部分校正RGB色调的R,G和B的色调值 数据远离白点。 结果,在保持高亮度的颜色再现性的同时精确地执行底色处理。
    • 8. 发明申请
    • Image processing method, image processing apparatus, image forming apparatus, program, and storage medium
    • 图像处理方法,图像处理装置,图像形成装置,程序和存储介质
    • US20080199076A1
    • 2008-08-21
    • US12069771
    • 2008-02-13
    • Tomoe MatsuokaMichiko FujiwaraTatsuya TanakaNorihide Yasuoka
    • Tomoe MatsuokaMichiko FujiwaraTatsuya TanakaNorihide Yasuoka
    • G06K9/34
    • G06K9/38G06K9/00442G06K2209/01
    • An image processing apparatus includes: a document type automatic classification section which determines whether input image data is image data for a text document or not; a newspaper document classification section which determines whether the input image data is image data for a newspaper document or not; a segmentation process section which identifies a page-background region in the input image data; and a color correction section for, if the input image data is classified as the text document and but not the newspaper document and if a page-background removal process is to be performed to the input image data, performing a first page-background removal process to the image data, but if the input image data is classified as the text document and the newspaper document, not performing the first page-background removal process to the image data. This makes it possible to prevent deterioration of visual sharpness of the text in the document image printed on the newspaper.
    • 图像处理装置包括:文档类型自动分类部,其判断输入图像数据是否为文本文档的图像数据; 确定输入图像数据是否为报纸文件的图像数据的报纸文档分类部分; 识别输入图像数据中的页面背景区域的分割处理部分; 以及颜色校正部,用于如果输入图像数据被分类为文本文档而不是报纸文档,并且如果要对输入图像数据执行页面背景去除处理,则执行第一页面背景去除处理 对于图像数据,但是如果输入图像数据被分类为文本文档和报纸文档,则不对图像数据执行第一页面背景去除处理。 这使得可以防止打印在报纸上的文档图像中的文本的视觉清晰度的劣化。
    • 9. 发明授权
    • Image processing method and image apparatus, and image forming apparatus, program, and storage medium
    • 图像处理方法和图像装置,以及图像形成装置,程序和存储介质
    • US07142711B2
    • 2006-11-28
    • US10341720
    • 2003-01-13
    • Makio GotoMasanori MinamiTatsuya Tanaka
    • Makio GotoMasanori MinamiTatsuya Tanaka
    • G06K9/00
    • H04N1/6072
    • In a color conversion section 10a, a mode judging section 31 judges a mode in effect: a copy mode or a printer mode, according to a mode judging signal. When the copy mode is identified, the mode judging section 31 supplied RGB data to a first color conversion process section 32, and the first color conversion section 32 carries out a first color conversion process in which a transitional color conversion value, which is color-transited from a precise color conversion value and a memory color conversion value, is set as a color conversion value with respect to memory color corresponding data. When the printer mode is identified, the mode judging section 31 supplies the RGB data to a second color conversion process section 33, and the second color conversion process section 33 carries out a second color conversion process in which the memory color conversion value is set as a color conversion value with respect to the memory color corresponding data.
    • 在颜色转换部分10a中,模式判断部分31根据模式判断信号判断有效的模式:复印模式或打印机模式。 当识别复印模式时,模式判断部分31将RGB数据提供给第一颜色转换处理部分32,并且第一颜色转换部分32执行第一颜色转换处理,其中过渡颜色转换值是彩色转换处理部分, 从精确的颜色转换值和存储器颜色转换值转换,被设置为相对于存储器颜色对应数据的颜色转换值。 当识别打印机模式时,模式判断部分31将RGB数据提供给第二颜色转换处理部分33,并且第二颜色转换处理部分33执行第二颜色转换处理,其中存储器颜色转换值被设置为 相对于存储器颜色对应数据的颜色转换值。