Developing apparatus using one component toner with improved flowability
    3.
    发明授权
    Developing apparatus using one component toner with improved flowability 失效
    显影装置使用具有改善的流动性的单组分调色剂

    公开(公告)号:US5307127A

    公开(公告)日:1994-04-26

    申请号:US022698

    申请日:1993-03-01

    IPC分类号: G03G15/08 G03G15/09

    摘要: A developing apparatus includes a developer carrying member for supplying a developer to an image bearing member, wherein the developer is a one component developer, and has a flowability index of 5-30%. A developing bias voltage application device applies a developing bias to the developer carrying member, wherein the developing bias application device applies an oscillating bias voltage, including a first peak voltage, for an application period T1, for forming an electric field for urging the developer from the developer carrying member to the image bearing member, and a second peak voltage, for an application period T2, for forming an electric field for urging the developer from the image bearing member to the developer carrying member, wherein T1:T2 satisfies 1:2-1:10.

    摘要翻译: 显影装置包括用于将显影剂供应到图像承载部件的显影剂承载部件,其中显影剂是单组分显影剂,并且具有5-30%的流动指数。 显影偏压施加装置向显影剂承载构件施加显影偏压,其中显影偏压施加装置在施加周期T1施加包括第一峰值电压的振荡偏压,用于形成用于将显影剂从 显影剂承载构件到图像承载构件和第二峰值电压,用于施加周期T2,用于形成用于将显影剂从图像承载构件推动到显影剂承载构件的电场,其中T1:T2满足1:2 -1:10。

    Image forming apparatus with select relation among distances in
recording material conveyance path
    5.
    发明授权
    Image forming apparatus with select relation among distances in recording material conveyance path 失效
    在记录材料传送路径中的距离之间具有选择关系的图像形成装置

    公开(公告)号:US5508796A

    公开(公告)日:1996-04-16

    申请号:US215710

    申请日:1994-03-22

    CPC分类号: G03G15/16

    摘要: The present invention provides an image forming apparatus with an image bearing member capable of rotating while bearing a toner image thereon, a transfer device for transferring the toner image from the image bearing member to a recording material at a transfer position, recording material bearing member capable of rotating while bearing the recording material thereon and adapted to convey the recording material to the transfer position, a pair of rotary members arranged at an upstream side of the recording material bearing member in a recording material conveying direction and adapted to pinch and convey the recording material, and a separation device for separating the recording material from the recording material bearing member at a separation position. When a length from the pair of rotary members to the separation position along a recording material conveying path is L1, a length of the recording material in the recording material conveying direction is L3, a length from the transfer position to the separation position is L4 and a sheet-to-sheet distance between two adjacent recording materials is La, the following relations are satisfied:L1

    摘要翻译: 本发明提供了一种图像形成装置,其具有能够在其上承载调色剂图像的同时转动的图像承载部件,用于将调色剂图像从图像承载部件转印到转印位置处的记录材料的转印装置,记录材料承载部件 在记录材料上承载记录材料并适于将记录材料传送到转印位置的一对旋转构件;一对旋转构件,其设置在记录材料承载构件的记录材料输送方向的上游侧并适于夹持和传送记录 材料和用于在记录材料承载部件处于分离位置处分离记录材料的分离装置。 当沿着记录材料传送路径从一对转动件到分离位置的长度为L1时,记录材料输送方向上的记录材料的长度为L3,从转印位置到分离位置的长度为L4, 两个相邻记录材料之间的片对距离为La,满足以下关系:L1 <(L3 + La),L4

    Developing apparatus forming alternating electric field between image
bearing member and toner carrying member
    10.
    发明授权
    Developing apparatus forming alternating electric field between image bearing member and toner carrying member 失效
    在图像承载部件和调色剂承载部件之间形成交变电场的显影装置

    公开(公告)号:US5548381A

    公开(公告)日:1996-08-20

    申请号:US305557

    申请日:1994-09-14

    IPC分类号: G03G15/00 G03G15/06 G03G21/14

    CPC分类号: G03G15/065

    摘要: A developing apparatus includes a toner carrying member, disposed opposite an image bearing member for bearing an electrostatic image, for carrying toner to the image bearing member; an electric field forming device for forming an alternating electric field between the image bearing member and the toner carrying member, wherein the alternating electric field includes a first phase in which a constant electric field for urging the toner from said image bearing member toward said toner carrying member continues for a predetermined period, a second phase in which a constant electric field for urging the toner from said toner carrying member toward said image bearing member continues for a predetermined period, and a third phase in which the electric field gradually changes from that in the first phase to that in the second phase within a predetermined period .DELTA.T, and a controller for changing a ratio (.DELTA.T/T), where T is one period of the alternating electric field.

    摘要翻译: 显影装置包括调色剂承载构件,与调色剂承载部件相对设置,用于承载静电图像; 用于在所述图像承载部件和所述调色剂承载部件之间形成交变电场的电场形成装置,其中所述交变电场包括第一相位,其中用于将所述调色剂从所述图像承载部件向所述调色剂承载 构件继续预定的时间段,其中用于将调色剂从所述调色剂承载构件推向所述图像承载构件的恒定电场的第二阶段持续预定时间段,并且其中电场逐渐变化的第三阶段 在预定时段DELTA T内的第二阶段的第一阶段和用于改变比率(DELTA T / T)的控制器,其中T是交变电场的一个周期。