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公开(公告)号：US10209658B2
公开(公告)日：2019-02-19
申请号：US15678696
申请日：2017-08-16
申请人： Konica Minolta, Inc.
发明人： Katsuya Toyofuku , Daiki Yamanaka , Toru Yamaguchi
摘要： An image forming system includes: a density detecting section that detects the density of a toner image formed on an image bearing member by an image forming section, the density being detected as an output image density; a hardware processor which performs; tone correction in accordance with input-output characteristics data indicating the relationship between an input image density and an output image density, the input image density being the image density of a tone component included in the input image data, the output image density being detected by the density detecting section in accordance with the tone component; determining whether there is a missing tone component in the input image data; and complementing the input-output characteristics data corresponding to a missing tone component, when it is determined that there is the missing tone component.
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公开(公告)号：US20200183312A1
公开(公告)日：2020-06-11
申请号：US16666722
申请日：2019-10-29
申请人： KONICA MINOLTA, INC.
发明人： Daiki Yamanaka
摘要： An image forming apparatus includes: a plurality of image forming parts each of which transfers a toner image to the transfer medium, the plurality of image forming parts being arranged from an upstream side to a downstream side along a moving direction of the transfer medium; a density detector that detects a density of the toner image; and a hardware processor that performs image stabilization control in which a plurality of patch images is formed while levels of parameters of image formation are changed for each of the image forming parts and the parameters are corrected based on respective densities of the patch images detected by the density detector.
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公开(公告)号：US11968346B2
公开(公告)日：2024-04-23
申请号：US18124538
申请日：2023-03-21
申请人： KONICA MINOLTA, INC.
发明人： Hiroshige Kidera , Daiki Yamanaka
IPC分类号： H04N1/60
CPC分类号： H04N1/6033 , H04N1/60 , H04N1/6002
摘要： A color correction apparatus has: an obtaining unit that obtains first color information of a first image formed by a first color formed on a recording medium and second color information of a second image formed by a second color superimposed on the first color formed on the recording medium; and a correction unit that finds a correction value for the second color by estimating color information of the second color based on the first color information and the second color information, the color information of the second color being varied due to an influence in correcting the first color information to a first target value of the first color.
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公开(公告)号：US11825061B2
公开(公告)日：2023-11-21
申请号：US18120856
申请日：2023-03-13
申请人： KONICA MINOLTA, INC.
发明人： Toru Yamaguchi , Daiki Yamanaka
IPC分类号： H04N1/60
CPC分类号： H04N1/6008 , H04N1/605 , H04N1/6097
摘要： An image forming apparatus includes: an image forming mechanism that forms a first image on a recording medium based on an image forming condition; a detector that detects a first color of the first image and a color of a foundation under the first image from the recording medium on which the first image is formed; a storage that stores reference data for specifying a relative relationship between a position of the first color in a color space and a position of the color of the foundation in the color space; and a processing circuitry, wherein the processing circuitry corrects the image forming condition based on the reference data and the first color and the color of the foundation detected by the detector.
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公开(公告)号：US10571842B2
公开(公告)日：2020-02-25
申请号：US16238997
申请日：2019-01-03
申请人： Konica Minolta, Inc.
发明人： Katsuya Toyofuku , Daiki Yamanaka , Toru Yamaguchi
摘要： An image forming system includes: a density detecting section that detects the density of a toner image formed on an image bearing member by an image forming section, the density being detected as an output image density; a hardware processor which performs; tone correction in accordance with input-output characteristics data indicating the relationship between an input image density and an output image density, the input image density being the image density of a tone component included in the input image data, the output image density being detected by the density detecting section in accordance with the tone component; determining whether there is a missing tone component in the input image data; and complementing the input-output characteristics data corresponding to a missing tone component, when it is determined that there is the missing tone component.
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公开(公告)号：US09756193B2
公开(公告)日：2017-09-05
申请号：US15141920
申请日：2016-04-29
申请人： Konica Minolta, Inc.
发明人： Aiko Kubota , Daiki Yamanaka
CPC分类号： H04N1/00068 , G03G15/5062 , H04N1/00013 , H04N1/00082 , H04N1/0057 , H04N1/00801 , H04N2201/0082
摘要： A distance between a reference position and a reference image of a sheet is accurately measured without adding a special device even when an attitude of the sheet is not stable. An aspect of the present invention obtains image data by reading a sheet surface formed with the reference image such as a trim mark by a reading portion. A height calculation portion calculates edge-blur amounts of the reference position and the reference image on the sheet surface from the image data. Furthermore, a height calculation portion detects heights from a focus position to the sheet surface for the reference position and the reference image, from the edge-blur amount and a reflected light amount of a white solid portion. Moreover, a distance detection portion calculates a distance between the reference position and the reference image on the sheet surface, on the basis of a detection result.
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公开(公告)号：US10788780B2
公开(公告)日：2020-09-29
申请号：US16054645
申请日：2018-08-03
申请人： Konica Minolta, Inc.
摘要： An image forming apparatus includes: an image former that forms an image, which is desired by a user and different from a predetermined pattern, on a sheet; an output information detector that detects output information on a first image formed on a first sheet by the image former; and a hardware processor that: acquires an correction amount of a third image, which is formed on a third sheet after the first sheet and a second sheet, according to a detection result of the first image by the output information detector and image information on a second image formed on the second sheet after the first sheet by the image former; and controls the image former so as to correct the third image based on the correction amount acquired by the hardware processor.
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8.发明授权Image-forming apparatus with controller and fixing portion to control toner adhesion amount 有权具有控制器和固定部分的图像形成装置，用于控制调色剂附着量公开(公告)号：US09291962B2
公开(公告)日：2016-03-22
申请号：US14604062
申请日：2015-01-23
申请人： Konica Minolta, Inc.
CPC分类号： G03G15/2039 , G03G15/5062
摘要： In an image-forming apparatus such as a printer, a controller judges whether or not a determination processing of fixity saturation state is performed to determine a fixing condition in which an image density of a patch is the fixity saturation state. The controller then performs the determination processing of fixity saturation state when a use condition is changed. The controller settles fixing conditions in which the image density of patch is highest as the set value when the image density of the patch is saturated. Next, the controller performs a toner adhesion amount adjustment using an intermediate transfer belt. A target value of the toner adhesion amount on the intermediate transfer belt corresponding to the target image density is set and then, an optimal developing voltage that is the set target value is set. After the toner adhesion amount adjustment, the controller performs fixity adjustment.
摘要翻译： 在诸如打印机的图像形成装置中，控制器判断是否执行定影饱和状态的确定处理，以确定贴片的图像浓度是固定饱和状态的定影条件。 然后，当使用条件改变时，控制器执行固定饱和状态的确定处理。 当贴片的图像浓度饱和时，控制器将贴片图像浓度最高的固定条件设置为设定值。 接下来，控制器使用中间转印带执行调色剂附着量调节。 设定与目标图像浓度对应的中间转印带上的调色剂附着量的目标值，然后设定作为设定目标值的最佳显影电压。 在调色剂附着量调节之后，控制器进行固定调整。
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公开(公告)号：US11949841B2
公开(公告)日：2024-04-02
申请号：US18115662
申请日：2023-02-28
申请人： KONICA MINOLTA INC.
发明人： Daiki Yamanaka
CPC分类号： H04N1/6038 , H04N1/00034 , H04N1/2346
摘要： An image forming apparatus includes: an image former that forms a correction patch using toner; a measurer that measures a color, a density, or a deposited amount of toner of the correction patch; and a hardware processor that calculates a reference correction amount on the basis of a measurement value of the measurer so that the density of the correction patch reaches a target value, and corrects an image forming condition of the image former by a first correction amount smaller than the reference correction amount.
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公开(公告)号：US10341532B2
公开(公告)日：2019-07-02
申请号：US15959449
申请日：2018-04-23
申请人： KONICA MINOLTA, INC.
摘要： An image forming apparatus that forms an output image corresponding to input image data on an image carrier by superimposing toner images of colors, includes a hardware processor that: detects color information of the output image for every pixel region; converts color information of the input image data for every pixel region and color information of the output image for every pixel region into indexes which define colors in predetermined color space coordinates; extracts a pixel region in which the color information of the output image is different from the color information of the input image data, and corrects the color information of the input image data with respect to the extracted pixel region; and stores the color information of the input image data as data for calibration in combination with the color information of the output image and image forming conditions when forming the output image.
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