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    Image forming apparatus
    1.
    发明授权
    Image forming apparatus 有权
    图像形成装置

    公开(公告)号：US08971740B2

    公开(公告)日：2015-03-03

    申请号：US14068888

    申请日：2013-10-31

    Applicant: Konica Minolta, Inc.

    Inventor： Takashi Harashima ,  Katsuyuki Hirata

    IPC: G03G15/00 ,  G03G15/20

    CPC classification number: G03G15/205 ,  G03G15/5062 ,  G03G2215/2074

    Abstract: An image forming apparatus has a detector that includes a toner density sensor arranged on the downstream side of a fixing section. When performing a control to determine an image forming condition of an image forming section based on the detection result of an image-adjusting pattern image obtained by the detector, the temperatures of a plurality of points in the axial direction of the fixing section are detected by a fixing temperature detector. Further, based on the temperature detection values obtained by the fixing temperature detector, a controller sets a detection area of the detector in a place where the fixing temperature is equal to a desired temperature, so that the detector detects the information about the image-adjusting pattern image at such place.

    Abstract translation: 图像形成装置具有包括配置在定影部的下游侧的调色剂浓度传感器的检测器。 当基于由检测器获得的图像调整图案图像的检测结果进行控制以确定图像形成部分的图像形成条件时，定影部分的轴向方向上的多个点的温度由 定影温度检测器。 此外，基于由定影温度检测器获得的温度检测值，控制器将检测器的检测区域设置在定影温度等于期望温度的位置，使得检测器检测关于图像调整的信息 模式图像在这样的地方。

    Image-forming apparatus with controller and fixing portion to control toner adhesion amount
    3.
    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

    Applicant: Konica Minolta, Inc.

    Inventor： Daiki Yamanaka ,  Toru Yamaguchi ,  Takashi Harashima

    IPC: G03G15/00 ,  G03G15/20

    CPC classification number: G03G15/2039 ,  G03G15/5062

    Abstract: 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.

    Abstract translation: 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。

    Image forming apparatus and image forming method
    4.
    发明授权
    Image forming apparatus and image forming method 有权
    图像形成装置及图像形成方法

    公开(公告)号：US08938174B2

    公开(公告)日：2015-01-20

    申请号：US14052961

    申请日：2013-10-14

    Applicant: Konica Minolta, Inc.

    Inventor： Katsuyuki Hirata ,  Takashi Harashima

    IPC: G03G15/00

    CPC classification number: G03G15/5062

    Abstract: An image forming apparatus includes: a detection unit detecting information about an image-adjusting pattern image fixed to a paper; a determination unit which, on the basis of an image-noise detecting pattern image that is formed on the paper prior to forming the image-adjusting pattern image, determines the presence or absence of an image noise generated in the image-adjusting pattern image; and a control unit. On the basis of the determination result of the determination unit, the control unit sets a detection region where the detection unit detects information about the image-adjusting pattern image, to a region where the image noise is not generated, and determines the image forming condition by using the information detected in the detection region.

    Abstract translation: 图像形成装置包括：检测单元，检测关于固定在纸张上的图像调整图案图像的信息; 确定单元，其基于在形成图像调整图案图像之前在纸上形成的图像噪声检测图案图像来确定在图像调整图案图像中产生的图像噪声的存在或不存在; 和控制单元。 基于确定单元的确定结果，控制单元将检测单元检测关于图像调整图案图像的信息的检测区域设置到不产生图像噪声的区域，并且确定图像形成条件 通过使用在检测区域中检测到的信息。

    Image forming apparatus,adjustment method and non-transitory computer-readable recording medium encoded with adjustment program
    5.
    发明授权
    Image forming apparatus,adjustment method and non-transitory computer-readable recording medium encoded with adjustment program 有权

    公开(公告)号：US12248263B2

    公开(公告)日：2025-03-11

    申请号：US18309996

    申请日：2023-05-01

    Applicant: Konica Minolta, Inc.

    Inventor： Takashi Harashima

    IPC: G03G15/20 ,  G03G15/00

    Abstract: An image forming apparatus includes a pressure roller, a driver that drives rotation of the pressure roller, an endless fixing belt, a pressing member that is provided inside the fixing belt and opposite to the pressure roller and forms a nip portion in which the fixing belt and the pressure roller come into contact with each other, a pressing force adjustment mechanism that adjusts a pressing force for pressing one of the pressure roller and the pressing member toward another one of the pressure roller and the pressing member, and a drive controller that controls the pressing force adjustment mechanism and the driver to rotate the pressure roller with the pressing force being smaller than a normal value defined for a normal state.

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