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    • 55. 发明授权
    • Image forming apparatus and method for controlling image density
    • 用于控制图像密度的图像形成装置和方法
    • US08503893B2
    • 2013-08-06
    • US12714790
    • 2010-03-01
    • Akira YoshidaNobutaka TakeuchiShin HasegawaYoshiaki MiyashitaKohta FujimoriKayoko Tanaka
    • Akira YoshidaNobutaka TakeuchiShin HasegawaYoshiaki MiyashitaKohta FujimoriKayoko Tanaka
    • G03G15/08
    • G03G15/0851G03G15/0849G03G15/0853G03G2215/0607
    • An image forming apparatus includes a developer unit to store two-component developer which includes toner and carrier and develop an electrostatic latent image formed on the image carrier, a toner concentration detector to detect toner concentration in the developer unit, a toner supply unit to supply toner to the developer unit, and a controller to control toner supply amount by controlling the toner supply unit by comparing an output value of the toner concentration detector with a reference value stored in a memory and correcting difference between output values of the toner concentration detector at two or more process linear velocities in accordance with the toner concentration in the developer unit. A compensation amount for correcting difference between output values of the toner concentration detector that differ depending on the process linear velocity is adjustable in accordance with the toner concentration in the development unit.
    • 图像形成装置包括:显影单元,用于存储包括调色剂和载体的双组分显影剂,并显影形成在图像载体上的静电潜像;调色剂浓度检测器,用于检测显影单元中的调色剂浓度;调色剂供应单元, 调色剂到显影剂单元,以及控制器,通过将调色剂浓度检测器的输出值与存储在存储器中的参考值进行比较来控制调色剂供应单元来控制调色剂供应量,并且校正调色剂浓度检测器的输出值之间的差异 根据显影剂单元中的调色剂浓度的两个或多个过程线速度。 用于校正根据处理线速度不同的调色剂浓度检测器的输出值之差的补偿量根据显影单元中的调色剂浓度而调节。
    • 56. 发明授权
    • Image forming apparatus and image forming method
    • 图像形成装置及图像形成方法
    • US07668471B2
    • 2010-02-23
    • US11748090
    • 2007-05-14
    • Nobutaka TakeuchiShin HasegawaKohta FujimoriKayoko TanakaYushi Hirayama
    • Nobutaka TakeuchiShin HasegawaKohta FujimoriKayoko TanakaYushi Hirayama
    • G03G15/08
    • G03G15/065G03G15/0131G03G15/0849G03G15/0853G03G15/5058G03G2215/00059
    • An image forming apparatus including a latent image bearing member; a developing device configured to develop a latent image on the image bearing member with a two-component developer; a development potential forming device configured to form a development potential; a toner replenishing device configured to supply the toner to the developing device; a toner concentration detecting device configured to detect and output the concentration of the toner in the developer; a toner concentration controlling device configured to compare the toner concentration output with a toner concentration target to control the toner concentration; an information detecting device configured to obtain information to determine the replacement amount of the toner in the developing device in a predetermined period of time; and a development potential correcting device configured to adjust the development potential on the basis of the information obtained by the information detecting device.
    • 一种图像形成装置,包括潜像承载部件; 显影装置,其被配置为利用双组分显影剂在图像承载部件上显影潜像; 配置为形成显影电位的显影电位形成装置; 配置成将调色剂供给到显影装置的调色剂补充装置; 调色剂浓度检测装置,被配置为检测并输出显影剂中调色剂的浓度; 调色剂浓度控制装置,被配置为将调色剂浓度输出与调色剂浓度目标值进行比较,以控制调色剂浓度; 信息检测装置,其被配置为获取信息以在预定时间段内确定显影装置中的调色剂的替换量; 以及显影电位校正装置,被配置为基于由信息检测装置获得的信息来调整显影电位。
    • 57. 发明授权
    • Developing device, and process unit and image forming apparatus using the developing device
    • 显影装置,以及使用显影装置的处理单元和成像装置
    • US07551862B2
    • 2009-06-23
    • US11761731
    • 2007-06-12
    • Kayoko TanakaShin HasegawaKohta FujimoriNobutaka TakeuchiYushi Hirayama
    • Kayoko TanakaShin HasegawaKohta FujimoriNobutaka TakeuchiYushi Hirayama
    • G03G15/08
    • G03G15/0853G03G15/0863G03G15/0889G03G2215/0888
    • A developing device including a developer bearing member configured to configured to bear thereon a developer including a toner and a magnetic carrier to develop an electrostatic image on an image bearing member with the developer; a developer container configured to contain and feed the developer to the developer bearing member; a toner concentration sensor configured to detect a concentration of the toner in the developer in the developer container and output a signal depending on the detected toner concentration; and a characteristic information storage device configured to store a characteristic of the toner concentration sensor, wherein the sensor information storage device is separated from the toner concentration sensor. A process unit including an image bearing member and the developing device. An image forming apparatus including an image bearing member, the developing device and a controller.
    • 一种显影装置,包括:显影剂承载部件,其构造成承载有包含调色剂和磁性载体的显影剂,以使显影剂在图像承载部件上显影静电图像; 显影剂容器,其构造成容纳并将显影剂供给到显影剂承载部件; 调色剂浓度传感器,被配置为检测显影剂容器中的显影剂中的调色剂的浓度,并根据检测到的调色剂浓度输出信号; 以及特征信息存储装置,被配置为存储调色剂浓度传感器的特性,其中传感器信息存储装置与调色剂浓度传感器分离。 一种处理单元,包括图像承载部件和显影装置。 一种图像形成装置,包括图像承载部件,显影装置和控制器。
    • 59. 发明申请
    • IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
    • 图像形成装置和图像形成方法
    • US20070269228A1
    • 2007-11-22
    • US11748090
    • 2007-05-14
    • Nobutaka TakeuchiShin HasegawaKohta FujimoriKayoko TanakaYushi Hirayama
    • Nobutaka TakeuchiShin HasegawaKohta FujimoriKayoko TanakaYushi Hirayama
    • G03G15/08
    • G03G15/065G03G15/0131G03G15/0849G03G15/0853G03G15/5058G03G2215/00059
    • An image forming apparatus including a latent image bearing member; a developing device configured to develop a latent image on the image bearing member with a two-component developer; a development potential forming device configured to form a development potential; a toner replenishing device configured to supply the toner to the developing device; a toner concentration detecting device configured to detect and output the concentration of the toner in the developer; a toner concentration controlling device configured to compare the toner concentration output with a toner concentration target to control the toner concentration; an information detecting device configured to obtain information to determine the replacement amount of the toner in the developing device in a predetermined period of time; and a development potential correcting device configured to adjust the development potential on the basis of the information obtained by the information detecting device.
    • 一种图像形成装置,包括潜像承载部件; 显影装置,其被配置为利用双组分显影剂在图像承载部件上显影潜像; 配置为形成显影电位的显影电位形成装置; 配置成将调色剂供给到显影装置的调色剂补充装置; 调色剂浓度检测装置,被配置为检测并输出显影剂中调色剂的浓度; 调色剂浓度控制装置,被配置为将调色剂浓度输出与调色剂浓度目标值进行比较,以控制调色剂浓度; 信息检测装置,其被配置为获取信息以在预定时间段内确定显影装置中的调色剂的替换量; 以及显影电位校正装置,被配置为基于由信息检测装置获得的信息来调整显影电位。