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    • 8. 发明授权
    • Developing device for an image forming apparatus
    • 用于图像形成装置的显影装置
    • US06643486B1
    • 2003-11-04
    • US09715126
    • 2000-11-20
    • Shuuichi EndohOsamu EndouYoshihiro AbeMasahide HaradaNobuhiko Umezawa
    • Shuuichi EndohOsamu EndouYoshihiro AbeMasahide HaradaNobuhiko Umezawa
    • G03G1508
    • G03G15/0812G03G2215/0634
    • A developing device for an image forming apparatus of the present invention includes an image carrier performing endless movement while carrying a developer in the form of a layer thereon, and a regulating member for regulating the thickness of the layer Toner stored in the developing device is covered with an additive whose particle size is less than 2 &mgr;m. The regulating member is implemented as a doctor roller having a surface roughness Rz equal to or greater than the above particle size, but smaller than 2 &mgr;m. The doctor roller is pressed against a developing roller or developer carrier by a preselected pressure, forming a nip for development The developing device reduces irregular development ascribable to impurities caught at a regulating position assigned to the doctor roller more than a conventional developing device using a doctor blade as a regulating member. In addition, the developing device obviates irregular development in the form of fine stripes ascribable to stripe-like irregularities formed in the developer layer existing on the developing roller.
    • 本发明的图像形成装置的显影装置包括:图像载体,其在其上承载显影剂形式的显影剂的同时执行无限次移动,并且覆盖用于调节所述层的厚度的调节部件覆盖存储在显影装置中的调色剂被覆盖 具有粒径小于2μm的添加剂。 调节构件被实施为具有等于或大于上述粒径但小于2μm的表面粗糙度Rz的刮刀辊。 刮刀辊被预选的压力压在显影辊或显影剂载体上,形成用于显影的辊隙显影装置比使用医生的常规显影装置减少归因于分配给刮墨辊的调节位置上的杂质的不规则显影 叶片作为调节构件。 此外,显影装置避免了由于存在于显影辊上的显影剂层中形成的条状凹凸形状的细条状的不规则显影。
    • 9. 发明授权
    • Image forming apparatus
    • 图像形成装置
    • US08167410B2
    • 2012-05-01
    • US12555368
    • 2009-09-08
    • Masanori HorikeFuyuhiko MatsumotoMasanori SaitohNobuaki KondohShin KayaharaOsamu EndouTomoko Takahashi
    • Masanori HorikeFuyuhiko MatsumotoMasanori SaitohNobuaki KondohShin KayaharaOsamu EndouTomoko Takahashi
    • B41J2/06
    • G03G15/346
    • The present invention provides an image forming apparatus, which is able to prevent the adherence of toner on the surface of toner controlling means and around a toner passage hole, and to stably carry out toner passage ON/OFF control when forming an image using the direct recording method. This image forming apparatus includes: a toner carrier; recording medium means; toner controlling means, disposed between the toner carrier and recording medium means, and having a plurality of toner passage holes; and cloud electrode means disposed between the toner carrier and toner controlling means, a toner cloud being formed by applying an AC bias between the toner carrier and cloud electrode means. A control electrode and a common electrode are disposed in toner controlling means, and when the toner of the toner carrier is able to pass through the toner controlling means toward recording medium means, a loop-shaped line of electric force is formed between the recording medium means side and the toner controlling means common electrode, the loop-shaped line by-passing the control electrode.
    • 本发明提供一种图像形成装置,其能够防止调色剂粘附在调色剂控制装置的表面上和调色剂通过孔周围,并且在使用直接的图像形成图像时稳定地执行调色剂通过开/关控制 记录方式。 该图像形成装置包括:调色剂载体; 记录介质装置; 调色剂控制装置,设置在调色剂载体和记录介质装置之间,并具有多个调色剂通过孔; 以及设置在调色剂载体和调色剂控制装置之间的云电极装置,通过在调色剂载体和云电极装置之间施加AC偏压形成调色剂云。 控制电极和公共电极设置在调色剂控制装置中,并且当调色剂载体的调色剂能够通过调色剂控制装置朝向记录介质装置时,在记录介质之间形成环形线的电力 装置侧,调色剂控制装置是公共电极,环形线绕过控制电极。
    • 10. 发明申请
    • IMAGE FORMING DEVICE AND IMAGE FORMING APPARATUS
    • 图像形成装置和图像形成装置
    • US20110043589A1
    • 2011-02-24
    • US12858742
    • 2010-08-18
    • Tetsuro HIROTAMasanori HorikeShin KayaharaOsamu EndouTomoko Takahashi
    • Tetsuro HIROTAMasanori HorikeShin KayaharaOsamu EndouTomoko Takahashi
    • B41J2/00
    • G03G15/323G03G15/0818
    • An image forming device, including a toner bearer including plural linear electrodes located at a first regular pitch in a crosswise direction thereof, flying a toner on the surface thereof between the plural linear electrodes with a pulse voltage thereto to form a floating toner layer; and a substrate including plural hole-electrode combinations arranged in a longitudinal direction of the linear electrodes, each formed of a through-hole and a hole-adjacent electrode located close to the through-hole, wherein the floating toner layer is formed in an area facing the through-hole, and a toner passes through only the through-holes facing a desired image from the floating toner layer with a record on or off voltage, and the plural hole-electrode combinations are lined at a second regular pitch in a crosswise direction of the toner bearer, and the second regular pitch is an integral multiple of the first regular pitch.
    • 一种图像形成装置,包括具有位于其横向方向上的第一规则间距的多个线性电极的调色剂承载件,使其上的多个线性电极之间的表面上的调色剂以脉冲电压形成浮动调色剂层; 以及基板,其具有沿所述线状电极的长度方向配置的多个空穴电极组合,各自由通孔和位于所述通孔附近的相邻的电极形成,其中,所述浮动调色剂层形成在区域 面对通孔,并且调色剂从具有记录打开或关闭电压的浮动调色剂层仅通过面向期望图像的通孔,并且多个空穴电极组合以交叉方式以第二规则间距排列 调色剂载体的方向,第二规则间距是第一规则间距的整数倍。