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    • 53. 发明授权
    • Image forming apparatus
    • 图像形成装置
    • US5930565A
    • 1999-07-27
    • US61266
    • 1998-04-17
    • Isao DoiKeiko MomotaniAkihito Ikegawa
    • Isao DoiKeiko MomotaniAkihito Ikegawa
    • G03G15/05G03G15/00G03G15/04
    • G03G15/05
    • An image forming apparatus includes a first conductive member, a photoelectric transfer layer mounted on the first conductive member, a surface electrode mounted adjacent to the photoelectric transfer layer but away from the first conductive layer, a dielectric layer opposed to the surface electrode, a second conductive member mounted on one surface of the dielectric layer away from the photoelectric transfer layer. A first power supply is provided for applying a voltage V.sub.c between first and second conductive members and a second power supply is provided for applying a voltage V.sub.b between the surface electrode and the second conductive member. The image forming apparatus satisfies following relationship:V.sub.b >(5.5)V.sub.c -(1+5.5/D.sub.p)(312+6.2D.sub.a)whereinV.sub.b : Voltage between surface electrode and second conductive member;V.sub.c : Voltage between first and second conductive members;D.sub.p : Thickness of photoelectric transfer layer; andD.sub.a : Distance between dielectric layer and photoelectric transfer layer.
    • 图像形成装置包括第一导电构件,安装在第一导电构件上的光电转移层,邻近光电转移层安装但远离第一导电层的表面电极,与表面电极相对的电介质层,第二导电构件 导电构件安装在电介质层的远离光电转移层的一个表面上。 提供第一电源用于在第一和第二导电构件之间施加电压Vc,并且提供第二电源用于在表面电极和第二导电构件之间施加电压Vb。 图像形成装置满足以下关系:Vb>(5.5)Vc-(1 + 5.5 / Dp)(312 + 6.2Da)其中Vb:表面电极和第二导电构件之间的电压; Vc:第一和第二导电构件之间的电压; Dp:光电转移层的厚度; 和Da:电介质层和光电转移层之间的距离。
    • 54. 发明授权
    • Charging method and charging device
    • 充电方式及充电装置
    • US5860046A
    • 1999-01-12
    • US889822
    • 1997-07-08
    • Akihito IkegawaKeiko MomotaniIsao Doi
    • Akihito IkegawaKeiko MomotaniIsao Doi
    • G03G15/02
    • G03G15/0233Y10S430/102
    • The present invention provides a contact charging device, in which a contact member for charging is in contact with a charge receiving member for charging the same while suppressing charging irregularity. The contact member has a surface to be in contact with the charge receiving member. This surface has a volume resistivity in a range from 1.times.10.sup.4 .OMEGA..multidot.cm to 1.times.10.sup.10 .OMEGA..multidot.cm, and has a surface resistivity in a range from 1.times.10.sup.5 .OMEGA./.quadrature. to 1.times.10.sup.10 .OMEGA./.quadrature..Alternatively, the contact member has a surface to be in contact with the charge receiving member. This surface of the contact member has a surface hardness which provides a scratch width of 1 .mu.m or less under scratch hardness test.
    • 本发明提供一种接触充电装置,其中用于充电的接触构件与用于对其充电的电荷接收构件接触,同时抑制充电不均匀。 接触构件具有与电荷接收构件接触的表面。 该表面的体积电阻率范围为1×10 4欧米加xcm至1×10 10欧米伽x厘米,并且其表面电阻率范围为1×10 5欧姆/平方厘米至1×10 10欧姆/平方厘米。 或者,接触构件具有与电荷接收构件接触的表面。 接触构件的该表面具有在刮擦硬度试验下提供1μm或更小的划痕宽度的表面硬度。