Image forming apparatus employing touchdown developing method
    1.
    发明授权
    Image forming apparatus employing touchdown developing method 有权
    采用触地显影法的图像形成装置

    公开(公告)号:US09229356B2

    公开(公告)日:2016-01-05

    申请号:US14295704

    申请日:2014-06-04

    Inventor: Kenshi Matsui

    CPC classification number: G03G15/065 G03G15/0266 G03G2215/0132

    Abstract: An image forming apparatus includes an image carrier, a developer carrier, a toner carrier, a bias voltage control unit, and a detection unit. The developer carrier carries a developer layer containing toner, an additive and carriers thereon. The toner carrier supplies toner to the image carrier. The bias voltage control unit changes bias voltage setting from ordinary developing mode to toner removing mode when the detection unit detects toner adhesion in excess of a threshold value on the toner carrier. In the toner removing mode, the bias voltage control unit sets the bias voltage to be applied to the image carrier, the developer carrier, and the toner carrier so that only the additive remains on the circumferential surface of the toner carrier, and the developer layer carried on the developer carrier contacts the circumferential surface of the toner carrier with a larger force, as compared with the ordinary developing mode.

    Abstract translation: 图像形成装置包括图像载体,显影剂载体,调色剂载体,偏压控制单元和检测单元。 显影剂载体携带含有调色剂,添加剂和载体的显影剂层。 调色剂载体向图像载体供应调色剂。 当检测单元检测到调色剂粘附超过调色剂载体上的阈值时,偏置电压控制单元将偏压设定从普通显影模式改变为调色剂去除模式。 在调色剂去除模式中,偏置电压控制单元设置要施加到图像载体,显影剂载体和调色剂载体上的偏置电压,使得只有添加剂保留在调色剂载体的圆周表面上,并且显影剂层 与普通显影模式相比,携带在显影剂载体上的显影剂载体以更大的力接触调色剂载体的圆周表面。

    Image forming apparatus
    3.
    发明授权
    Image forming apparatus 有权
    图像形成装置

    公开(公告)号:US08831451B2

    公开(公告)日:2014-09-09

    申请号:US13828579

    申请日:2013-03-14

    Inventor: Kenshi Matsui

    CPC classification number: G03G15/095 G03G15/0907 G03G15/5041 G03G15/5058

    Abstract: The developing device includes a toner layer formation control unit instructing a voltage control unit to set a first voltage difference to form a toner layer on a surface of a toner supporting rotator, a stripping control unit that instructs the voltage control unit to, in a toner layer stripping mode, set a second voltage difference that moves substantially an entire amount of toner composing the toner layer to a developer supporting rotator, and a density detection unit detecting the toner density on a transfer member onto which a toner image is primarily transferred. When the toner remains on a surface of the toner supporting rotator, the stripping control unit causes the toner to fly to the surface of the image carrier, while outputting an instruction adjusting the second voltage difference to the voltage control unit in order to reduce the toner density detected by the toner density detection unit.

    Abstract translation: 显影装置包括调色剂层形成控制单元,指示电压控制单元设置第一电压差以在调色剂支撑旋转体的表面上形成调色剂层;剥离控制单元,其指示电压控制单元在调色剂 设置将构成调色剂层的基本上整个量的调色剂层的调色剂移动到显影剂支撑旋转体的第二电压差,以及密度检测单元,其检测主要转印有调色剂图像的转印部件上的调色剂浓度。 当调色剂保留在调色剂支撑旋转体的表面上时,剥离控制单元使调色剂飞行到图像载体的表面,同时输出调节第二电压差的指令给电压控制单元,以便减少调色剂 浓度由调色剂浓度检测单元检测。

    IMAGE FORMING APPARATUS EMPLOYING TOUCHDOWN DEVELOPING METHOD
    4.
    发明申请
    IMAGE FORMING APPARATUS EMPLOYING TOUCHDOWN DEVELOPING METHOD 有权
    使用触摸屏开发方法的图像形成装置

    公开(公告)号:US20140369705A1

    公开(公告)日:2014-12-18

    申请号:US14295704

    申请日:2014-06-04

    Inventor: Kenshi Matsui

    CPC classification number: G03G15/065 G03G15/0266 G03G2215/0132

    Abstract: An image forming apparatus includes an image carrier, a developer carrier, a toner carrier, a bias voltage control unit, and a detection unit. The developer carrier carries a developer layer. The toner carrier supplies toner to the image carrier. The bias voltage control unit changes bias voltage setting from ordinary developing mode to toner removing mode when the detection unit detects toner adhesion in excess of a threshold value on the toner carrier. In the toner removing mode, the bias voltage control unit sets the bias voltage to be applied to the image carrier, the developer carrier, and the toner carrier in such a manner that only the additive remains on the circumferential surface of the toner carrier, and the developer layer carried on the developer carrier comes into contact with the circumferential surface of the toner carrier with a large force, as compared with the ordinary developing mode.

    Abstract translation: 图像形成装置包括图像载体,显影剂载体,调色剂载体,偏压控制单元和检测单元。 显影剂载体携带显影剂层。 调色剂载体向图像载体供应调色剂。 当检测单元检测到调色剂粘附超过调色剂载体上的阈值时,偏置电压控制单元将偏压设定从普通显影模式改变为调色剂去除模式。 在调色剂去除模式中,偏置电压控制单元设置施加到图像载体,显影剂载体和调色剂载体上的偏置电压,使得只有添加剂保留在调色剂载体的圆周表面上,并且 与普通显影模式相比,承载在显影剂载体上的显影剂层以大的力与调色剂载体的圆周表面接触。

    Developing device and image forming apparatus comprising same
    5.
    发明授权
    Developing device and image forming apparatus comprising same 有权
    显影装置和包括其的图像形成装置

    公开(公告)号:US08923723B2

    公开(公告)日:2014-12-30

    申请号:US13667745

    申请日:2012-11-02

    CPC classification number: G03G15/0898 G03G15/09 G03G2221/1645

    Abstract: The developing device of the present disclosure comprises a developing container, toner carrier, developer carrier, regulating member, and air outflow channel. The developing container accommodates a two-component developer. The toner carrier supplies toner to an image carrier. The developer carrier rotates so that a surface facing the toner carrier moves in the opposite direction of the toner carrier, and a toner layer is formed on the toner carrier. The regulating member regulates the amount of developer carried on the developer carrier. The air outflow channel communicates an airflow outlet formed in the top end of the developing container facing the toner carrier with the interior of a duct placed above the developing container, and the air outflow channel is inclined downstream in the rotational direction of the toner carrier relative to a straight line passing through the rotational axis center of the toner carrier and the airflow outlet.

    Abstract translation: 本公开的显影装置包括显影容器,调色剂载体,显影剂载体,调节构件和空气流出通道。 显影容器容纳双组分显影剂。 调色剂载体向图像载体供应调色剂。 显影剂载体旋转使得面向调色剂载体的表面在调色剂载体的相反方向上移动,并且调色剂层形成在调色剂载体上。 调节构件调节显影剂载体上承载的显影剂的量。 空气流出通道将形成在面向调色剂载体的显影容器的顶端中的气流出口与位于显影容器上方的管道的内部连通,并且空气流出通道沿调色剂承载件相对的旋转方向向下游倾斜 到通过调色剂承载件的旋转轴心和气流​​出口的直线。

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