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    • 56. 发明公开
    • Developing device
    • 处理器
    • EP0715226A2
    • 1996-06-05
    • EP95308128.8
    • 1995-11-14
    • SHARP KABUSHIKI KAISHA
    • Katoh, Keiji, Park Terrace Shinoomiya 806Araki, HiroshigeImai, YasuoWakada, ShigeyukiKido, EiichiOta, ToshihiroYui, Yuhi
    • G03G15/08
    • G03G15/0896G03G15/0812G03G15/0822G03G15/0877G03G15/0891
    • A developer cartridge (20) for image forming apparatuses which performs development to form images with non-magnetic, one-component type developer. The developer cartridge (20) comprises a developing roller (22) for supplying developer (24) to a photoconductor drum (5a), a developer feed roller (23) for conveying and supplying developer (24) to the developing roller (22) which is placed in non-contact with the developing roller (22) and a developer-layer thickness control member (27) for controlling the thickness of the developer layer of the developing roller (22) in a developer tank (49). The developer feed roller (23) is shaped as a regular polygonal prism.
      The above configuration contributes to increased capacity of conveyance as compared with circular-section developer feed rollers of the prior art. Additionally, since no recess sections are formed in the surface of the regular polygonal prism, the torque does not increase when developer (24) is scrubbed, thus ensuring consistent operation. The result is improved image quality.
      Non-magnetic, one-component type developer (440) is deposited in a compressed manner on the developing roller (444) located in the region of development which faces a photoconductor (401) with latent images formed thereon, by supplying the developer (440) in the developer tank (441) to the developer-conveying, developing roller (444) via the agitation roller (442) and the feed member (443) and then sending the supplied developer (440) into the bottleneck between the developing roller (444) and the applying member (446). The developer which passes through the bottleneck is controlled for a consistent amount of application to the developing roller (444) by its temporarily residing in the developer reservoir confined by the developing roller (444), the control roller (445) and the applying member (446), for pressurization thereof to ensure application of the developer (440) to the developing roller (444), followed by rotation of the control roller (445).
      The above configuration serves to lower friction of developer with the developing roller (444) and the control roller (445), thereby preventing deposition of developer (440) on the control roller (445) while establishing a consistent amount of developer (440) applied to the developing roller (444).
    • 58. 发明公开
    • Developing apparatus for an image forming apparatus
    • EntwicklungsgerätfüreinBilderzeugungsgerät。
    • EP0366052A2
    • 1990-05-02
    • EP89119670.1
    • 1989-10-24
    • KONICA CORPORATION
    • Naganuma, SeikoHaneda, Satoshi
    • G03G15/08
    • G03G15/0896G03G15/0875G03G15/0877G03G15/0891Y10S222/01
    • A developer for an image forming apparatus using a two-­component type developer which contains carrier and toner, comprising; containing chamber of the toner (12), containing chamber (11) of the developer, in which the developer containing chamber (11) has a developing sleeve (13) for supplying the toner to a photoreceptor to develop a latent image on the photoreceptor, an aperture member provided between the toner containing chamber (12) and the developer (11) containing chamber (11) through which the toner is supplied from the toner containing chamber (12) to the developer containing chamber (11), in which in the toner containing chamber (12) and the developer in the developer containing chamber (11) are arranged so as to be positioned adjacent to the aperture member.
    • 一种使用包含载体和调色剂的双组分型显影剂的图像形成装置的显影剂,包括: 其中显影剂容纳室(11)具有显影套筒(13),该显影套筒(13)用于将调色剂供应给感光体以在感光体上显影潜像, 设置在所述调色剂容纳室(12)和所述显影剂(11)容纳室(11)之间的孔口构件,所述调色剂从所述调色剂容纳室(12)通过所述显影剂供应到所述显影剂容纳室(11) 调色剂容纳室(12)和显影剂容纳室(11)中的显影剂被布置成邻近孔构件定位。