Image forming apparatus
    11.
    发明公开
    Image forming apparatus 有权
    Bilderzeugungsgerät

    公开(公告)号:EP0908792A3

    公开(公告)日:1999-08-18

    申请号:EP98118956.6

    申请日:1998-10-07

    IPC分类号: G03G15/08 G03G15/09

    摘要: An image forming apparatus includes an image bearing member for bearing an electrostatic image; a developer carrying member for carrying a developer and for forming a developing zone with the image bearing member, wherein the developer is externally added with additive having a charging polarity opposite from that of the developer; voltage applying means for applying a developing voltage to the developer carrying member; voltage control means for controlling the developing voltage so as to change force for directing the additive toward a non-image portion of the image bearing member in accordance with a number of image forming operations.

    摘要翻译: 图像形成装置包括用于承载静电图像的图像承载部件; 用于承载显影剂并与图像承载部件形成显影区的显影剂承载部件,其中显影剂外部添加具有与显影剂相反的充电极性的添加剂; 电压施加装置,用于向显影剂承载构件施加显影电压; 电压控制装置,用于控制显影电压,以便根据图像形成操作的数量改变用于将添加剂引导到图像承载部件的非图像部分的力。

    Image forming apparatus
    12.
    发明公开
    Image forming apparatus 有权
    Bilderzeugungsgerät

    公开(公告)号:EP0908792A2

    公开(公告)日:1999-04-14

    申请号:EP98118956.6

    申请日:1998-10-07

    IPC分类号: G03G15/08 G03G15/09

    摘要: An image forming apparatus includes an image bearing member for bearing an electrostatic image; a developer carrying member for carrying a developer and for forming a developing zone with the image bearing member, wherein the developer is externally added with additive having a charging polarity opposite from that of the developer; voltage applying means for applying a developing voltage to the developer carrying member; voltage control means for controlling the developing voltage so as to change force for directing the additive toward a non-image portion of the image bearing member in accordance with a number of image forming operations.

    摘要翻译: 图像形成装置包括用于承载静电图像的图像承载部件; 用于承载显影剂并与图像承载部件形成显影区的显影剂承载部件,其中显影剂外部添加具有与显影剂相反的充电极性的添加剂; 电压施加装置,用于向显影剂承载构件施加显影电压; 电压控制装置,用于控制显影电压,以便根据图像形成操作的数量改变用于将添加剂引导到图像承载部件的非图像部分的力。

    Electrophotographic developing apparatus
    14.
    发明公开
    Electrophotographic developing apparatus 失效
    电子显影设备

    公开(公告)号:EP0404561A3

    公开(公告)日:1992-04-15

    申请号:EP90306778.3

    申请日:1990-06-21

    申请人: FUJITSU LIMITED

    IPC分类号: G03G15/08 G03G15/06

    摘要: Image developing apparatus, for developing a latent electrostatic image, includes a container (12), for holding a supply of toner particles (D), and a developing roller (18) made of an electrically-conductive elastomeric material and supported for rotation in contact with toner particles in the container so as to entrain a layer of such particles and carry them to a location at which the roller engages a surface bearing such an image. A blade member (22) is pressed against the developing roller for regulating the thickness of the said layer, and respective bias voltages are applied to the developing roller and to the blade member for ensuring that the toner particles of the said layer are electrically charged in a desired manner and/or for preventing electrostatic adhesion of such particles to the blade member. Danger of localised damage due to electrical current flow between the blade member and the developing roller, prior to attainment of its normal speed of rotation, is reduced by delaying application of the bias voltages for a preset period of time after initiation of the said rotation. When such rotation is to be stopped, by termination of a drive signal (DS) maintaining that rotation, the application of the bias voltage to the blade member is terminated at a first instant. The drive signal is then terminated at a second instant, a predetermined short period of time after the said first instant, the application of the bias voltage to the developing roller being maintained until the said second instant, thereby to encourage separation of toner particles from the roller during that predetermined short period.

    Image forming method
    16.
    发明公开
    Image forming method 失效
    成像方法

    公开(公告)号:EP0387096A3

    公开(公告)日:1991-03-27

    申请号:EP90302563.3

    申请日:1990-03-09

    IPC分类号: G03G15/08 G03G21/00

    摘要: An image forming method is to arrange a developing agent holder for holding one component developing agent layer arranged to contact with a latent image holder, and to develop certain latent image on the latent image holder and to simultaneously clean up the developing agent adhering to the surface of non-latent image area on the latent image holder, wherein the cleaning up is carried out under the condition expressed by the following formula:
    0.5≦ (Vd/Vp) · m ≦ 3.0
    wherein the moving speed of the developing agent holder is defined as Vd, the moving speed of the surface of the latent image holder is defined as Vp and the developing agent adhering density is defined as m (mg/cm²),
    or the amount of the remained toner after transferring remaining on the latent image phase of the latent image holder is set less than 0.35 mg/cm². Further, an image forming device is provided with a remained toner uniforming means for disturbing and uniforming the remained toner remaining on the latent image phase of the latent image holder arranged to be pressed or contacted to the latent image holder for being applied to the above mentioned image forming method. Therefore, the satisfactory image having an excellent quality without ghost and fogging can be always obtained, and the satisfactory image can be obtained under the high humidity environment condition.

    摘要翻译: 图像形成方法是布置显影剂保持器,用于保持设置成与潜像保持器接触的一个成分显影剂层,并且在潜像保持器上显影特定的潜像并且同时清洁附着到表面的显影剂 其特征在于,所述清洁是在由下式表示的条件下进行的:0.5≤(Vd / Vp)·m≤3.0其中定义显影剂保持器的移动速度 作为Vd,将潜像保持体表面的移动速度定义为Vp,将显影剂附着密度定义为m(mg / cm 2),或将残留的调色剂残留在 潜像保持器设定为小于0.35mg / cm 2。 此外,图像形成装置设置有残留调色剂均匀化装置,用于干扰和均匀化残留在潜像保持体的潜像相位上的残留调色剂,该潜像保持体被布置为被挤压或接触到潜像保持体以应用于上述 图像形成方法。 因此,总是可以获得具有良好质量且没有重影和起雾的令人满意的图像,并且可以在高湿度环境条件下获得令人满意的图像。

    Developing apparatus
    17.
    发明公开
    Developing apparatus 失效
    Entwicklungsgerät。

    公开(公告)号:EP0196231A2

    公开(公告)日:1986-10-01

    申请号:EP86302265.3

    申请日:1986-03-26

    IPC分类号: G03G15/08

    摘要: This invention relates to a developing apparatus, used in an electrophotographic system or an electrographic system for converting an electrostatic image formed on a sensitive material or a dielectric material into a visible image with a one-component developing agent formed solely of a non-magnetic toner (14). The developing apparatus has a carrier roll (11) serving as a movable developing agent carrier which supplies the developing agent to an electrostatic latent image. An elastic coating member (12) presses against the surface of the carrier roll (11) and is supported at one end thereof. The elastic coating member (12) is so directed that its free end is directed opposite the direction of movement of the carrier roll (11).

    摘要翻译: 本发明涉及一种用于电子照相系统或电摄影系统的显影装置,用于将仅在非磁性调色剂上形成的单组分显影剂将形成在感光材料或电介质材料上的静电图像转换为可见光图像 (14)。 显影装置具有作为可动显影剂载体的载体辊(11),其将显影剂供应到静电潜像。 弹性涂层构件(12)压靠承载辊(11)的表面并在其一端被支撑。 弹性涂层构件(12)被引导为其自由端与载体辊(11)的运动方向相反。

    Developing device for xerographic copying machines
    18.
    发明公开
    Developing device for xerographic copying machines 失效
    静电复印机的显影装置

    公开(公告)号:EP0002845A3

    公开(公告)日:1979-07-25

    申请号:EP78200329

    申请日:1978-12-01

    IPC分类号: G03G15/08

    摘要: Developing a xerographic toner image without the use of carrier beads is carried out by means of an applicator roller which transfers toner from a trough towards the image bearing medium via a scraper element mounted at the exit opening of the trough. An exact regulation of the amount of toner which is transferred in this way may be carried out by providing a DC-voltage between the transfer roller and the scraper.

    摘要翻译: 在不使用载体珠的情况下显影静电复印调色剂图像通过涂布辊进行,该涂布辊通过安装在槽的出口开口处的刮擦元件将调色剂从槽转移到图像承载介质。 可以通过在转印辊和刮刀之间提供DC电压来执行以这种方式转印的调色剂量的精确调节。

    Developing device for xerographic copying machines
    19.
    发明公开
    Developing device for xerographic copying machines 失效
    Kickiergerät。

    公开(公告)号:EP0002845A2

    公开(公告)日:1979-07-11

    申请号:EP78200329.7

    申请日:1978-12-01

    IPC分类号: G03G15/08

    摘要: Developing a xerographic toner image without the use of carrier beads is carried out by means of an applicator roller which transfers toner from a trough towards the image bearing medium via a scraper element mounted at the exit opening of the trough. An exact regulation of the amount of toner which is transferred in this way may be carried out by providing a DC-voltage between the transfer roller and the scraper.

    摘要翻译: 一种静电复印显影装置,用于在不使用调色剂承载珠的情况下将静电复印色调剂沉积在图像承载介质上,该调色剂承载珠包括用于通过安装在托盘的出口处的刮板元件将调色剂从托盘传送到图像承载介质的涂布辊。 通过在施加辊和刮刀之间施加直流电压电位来实现以这种方式转移的调色剂量的改进的调节。