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    • 9. 发明授权
    • Electrophotographic developing device having toner removing means
    • 具有调色剂去除装置的电子照相显影装置
    • US4601258A
    • 1986-07-22
    • US653940
    • 1984-09-24
    • Shiroh Kondoh
    • Shiroh Kondoh
    • G03G15/09
    • G03G15/09
    • A device for developing an electrostatic latent image carried on an image bearing member comprises a developing sleeve for transporting a magnetic developer as carried thereon through a developing station where the developer is applied to the image bearing member to develop the latent image thereon, a doctor blade for forming a developer film of predetermined thickness and charge, a plurality of magnets disposed inside of the developing sleeve to have the magnetic developer attracted to the developing sleeve, and a scraper for removing the developer remaining on the sleeve after development. In the preferred embodiment, the scraper is pivotally supported and at least comprised of a magnetic material thereby allowing it to be pressed against the sleeve due to magnetic attraction from the magnets inside of the sleeve. In addition, the scraper is provided with a surface-hardened portion at least at that section which comes into contact with the developer on the sleeve when the scraper is pressed against the sleeve.
    • 用于显影承载在图像承载部件上的静电潜像的装置包括显影套筒,用于通过显影剂运送磁性显影剂,显影剂将显影剂施加到图像承载部件上以在其上显影潜像,刮刀 为了形成预定厚度和充电的显影剂膜,设置在显影套筒内部以使磁性显影剂吸引到显影套筒的多个磁体,以及用于在显影后除去保留在套筒上的显影剂的刮刀。 在优选实施例中,刮刀枢转地支撑并且至少由磁性材料组成,从而允许其由于来自套筒内的磁体的磁吸引而被压靠在套筒上。 此外,当刮刀被压靠在套筒上时,至少在那个与套筒上的显影剂接触的部分处,刮刀设置有表面硬化部分。
    • 10. 发明授权
    • Development apparatus for developing latent electrostatic images
    • 显影静电潜像显影装置
    • US4537491A
    • 1985-08-27
    • US434005
    • 1982-10-13
    • Kenya KomadaKazuhiro YuasaShiroh Kondoh
    • Kenya KomadaKazuhiro YuasaShiroh Kondoh
    • G03G15/09
    • G03G15/09
    • A development apparatus for developing latent electrostatic images to visible or transferable images of high quality for use in electrophotographic copying apparatus, electrostatic recording apparatus, facsimile apparatus or other recording apparatus, in which a development roller is in arc-contact with a latent-electrostatic-image-bearing flexible recording medium and is capable of supplying a sufficient amount of toner to the recording medium for development of the latent electrostatic images, without requiring any delicate adjustment of the gap between the development roller and the recording medium or of the gap between the development roller and a doctor blade for regulating the thickness of a toner layer on the development roller, and without increasing the rotary speed of the development roller to conventional speeds, and the doctor blade is also capable of performing charge injection to the toner with high efficiency, whereby images can be developed with high quality with a minimum deposition of toner on the background.
    • 一种显影装置,用于将静电潜像显影到用于电子照相复印装置,静电记录装置,传真装置或其它记录装置中的高质量可见或可转印图像,其中显影辊与潜伏静电图像电弧接触, 图像承载的柔性记录介质,并且能够将足够量的调色剂供应到用于显影静电潜像的记录介质中,而不需要对显影辊和记录介质之间的间隙进行微妙的调节, 显影辊和刮刀,用于调节显影辊上的调色剂层的厚度,并且不将显影辊的转速提高到常规速度,并且刮刀还能够以高效率对调色剂进行电荷注入 ,从而可以以最小的质量开发图像 调色剂沉积在背景上。