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    • 1. 发明授权
    • Developing device
    • 开发设备
    • US06782226B2
    • 2004-08-24
    • US10367843
    • 2003-02-19
    • Junji MachidaHidetoshi MiyamotoTetsumaru FujitaMasahiko MatsuuraYoshiko YaoiMakoto ShimazoeShuichi Nakagawa
    • Junji MachidaHidetoshi MiyamotoTetsumaru FujitaMasahiko MatsuuraYoshiko YaoiMakoto ShimazoeShuichi Nakagawa
    • G03G1508
    • G03G15/0808G03G2215/0619
    • A developing device includes a toner bearing member holding a toner on its surface for conveyance of the toner to a development region where the toner bearing member opposes an image bearing member via a predetermined gap therebetween; a regulating member pressed against the surface of the toner bearing member for regulation of the amount of toner conveyed to the development region; and a developing bias source for applying an alternating electric field between the toner bearing member and the image bearing member. The developing device features the use of the toner bearing member including a conductive substrate formed with an elastic layer, an intermediate layer and a surface layer on the surface thereof, respective volume resistances &rgr;1, &rgr;2 and &rgr;3 of which layers satisfy a condition &rgr;2≦&rgr;1≦&rgr;3, the toner bearing member having an arithmetic average surface roughness in the range of 0.8 to 2.5 &mgr;m, and the use of the toner having a volume-average particle size of 3 to 8 &mgr;m.
    • 显影装置包括在其表面上保持调色剂的调色剂承载构件,用于将调色剂输送到显影区域,在该显影区域,调色剂承载构件经由图像承载构件经由其间的预定间隙对置; 调节构件压靠在调色剂承载构件的表面上,用于调节传送到显影区域的调色剂的量; 以及用于在调色剂承载构件和图像承载构件之间施加交变电场的显影偏压源。 显影装置的特征在于使用调色剂承载部件,该调色剂承载部件包括形成有表面的弹性层,中间层和表面层的导电性基板,其各层满足条件rho2 <= 1的各自的体积电阻rho1,rho2和rho3, RHO1&LE; RHO3,具有0.8〜2.5μm的算术平均表面粗糙度的调色剂承载构件,以及使用体积平均粒径为3〜8μm的调色剂。
    • 3. 发明授权
    • Image forming apparatus and method of displaying information about image forming apparatus
    • 图像形成装置和显示关于图像形成装置的信息的方法
    • US06873803B2
    • 2005-03-29
    • US09878171
    • 2001-06-12
    • Keyaki YogomeHiroshi MizunoHidetoshi MiyamotoMasahiko MatsuuraTakaji Kurita
    • Keyaki YogomeHiroshi MizunoHidetoshi MiyamotoMasahiko MatsuuraTakaji Kurita
    • G03G21/00G03G15/22G09F9/37G03G15/00
    • G03G15/221G03G15/04045
    • A method of displaying information about an image forming apparatus comprising a first image forming portion for forming an image on a normal image display medium and a second image forming portion for forming an image on a reversible image display medium and capable of forming an image on the normal image display medium through the first image forming portion and of forming an image on the reversible image display medium through the second image forming portion, wherein the information about the image forming apparatus (information about the state of a predetermined item in the image forming apparatus) and (or) information about a setting state for image formation in the image forming apparatus) is displayed on a display device in the image forming apparatus and (or) a display device in an image information input apparatus transmitting image data to the image forming apparatus depending on the information, and an image forming apparatus capable of executing the method.
    • 一种显示关于图像形成装置的信息的方法,包括用于在正常图像显示介质上形成图像的第一图像形成部分和用于在可逆图像显示介质上形成图像的第二图像形成部分,并且能够在 通过第一图像形成部分的正常图像显示介质,并且通过第二图像形成部分在可逆图像显示介质上形成图像,其中关于图像形成装置的信息(关于图像形成装置中的预定项目的状态的信息 )和(或)关于图像形成装置中的图像形成的设置状态的信息)被显示在图像形成装置中的显示装置和(或)图像信息输入装置中的显示装置中,该图像信息输入装置将图像数据发送到图像形成 取决于信息的装置,以及能够执行该方法的图像形成装置。
    • 9. 发明授权
    • Reversible image display medium
    • 可逆图像显示介质
    • US06774879B2
    • 2004-08-10
    • US09875959
    • 2001-06-08
    • Hidetoshi MiyamotoKeyaki YogomeMasahiko MatsuuraHiroshi MizunoTakaji Kurita
    • Hidetoshi MiyamotoKeyaki YogomeMasahiko MatsuuraHiroshi MizunoTakaji Kurita
    • G09G334
    • G02F1/167
    • This invention provides a reversible image display medium comprising two substrates opposed to each other with a predetermined gap therebetween, one or more developer-accommodating cells formed between the two substrates, and a dry developer accommodated in each cell, in which the dry developer contains at least two kinds of frictionally chargeable dry developer particles having different chargeable polarities and different optical reflection densities, the reversible image display medium having at least any of the following features: (1) at least one kind of the developer particles being magnetic particles containing a binder resin having a magnetic substance incorporated therein, the magnetic particles having a saturation magnetization degree in the range of 20 emu/g to 50 emu/g; (2) at least one kind of the dry developer particles has a volume resistivity &rgr; in the range of 1.0×1010 &OHgr;·cm to 1.0×1014 &OHgr;·cm; (3) the dry developer contains inorganic fine powder as a fluidization agent, the inorganic fine powder having a BET specific surface area of 80 m2/g to 300 m2/g; and (4) the dry developer is accommodated in the cell in an amount of 20 vol. % to 50 vol. % based on the volume of the cell.
    • 本发明提供一种可逆图像显示介质,其包括彼此相对的两个基板,其间具有预定的间隙,在两个基板之间形成一个或多个显影剂容纳单元,以及容纳在每个单元中的干显影剂,其中干显影剂包含在 至少两种可摩擦带电的干显影剂颗粒具有不同的可充电极性和不同的光学反射浓度,可逆图像显示介质具有以下特征中的至少一个:(1)至少一种显影剂颗粒是含有粘合剂的磁性颗粒 具有掺入其中的磁性物质的树脂,所述磁性颗粒的饱和磁化度在20emu / g至50emu / g的范围内;(2)至少一种所述干燥显影剂颗粒的体积电阻率rho在所述范围内 为1.0×10 10Ω·cm〜1.0×10 14Ω·cm;(3)干显影剂含有无机细粉末作为流化 所述无机细粉末的BET比表面积为80m 2 / g〜300m 2 / g, 和(4)将干燥的显影剂以20体积的量容纳在电池中。 %至50体积 基于单元的体积%。