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17 条记录 (耗时 0.014 秒)

    Transfer-fixing device, image forming apparatus including the transfer-fixing device, and transfer-fixing method
    15.
    发明公开
    Transfer-fixing device, image forming apparatus including the transfer-fixing device, and transfer-fixing method 审中-公开
    Übertragungsfixiervorrichtung，具有Übertragungsfixiervorrichtung和Übertragungsfixierverfahren图像形成装置

    公开(公告)号：EP2028555A2

    公开(公告)日：2009-02-25

    申请号：EP08250694.0

    申请日：2008-02-29

    申请人： Ricoh Company, Ltd.

    发明人： Fujita, Takashi ,  Kayahara, Shin ,  Takemoto, Takeshi ,  Takagaki, Hiromitsu ,  Seto, Takashi ,  Tamura, Hirohmi

    IPC分类号： G03G15/00

    CPC分类号： G03G15/161 ,  G03G15/2064 ,  G03G2215/0129 ,  G03G2215/1685 ,  G03G2215/2074

    摘要： A transfer-fixing device (66; 66A; 66B; 66C) transfers and fixes a toner image onto a transfer-fixing surface of a recording medium, and includes a transfer-fixing member (27), a pressing member (68), a heating member (67; 67X; 67Y), and a temperature equalization member (85). The transfer-fixing member carries the toner image. The pressing member pressingly contacts the transfer-fixing member to form a nip between the pressing member and the transfer-fixing member through which the recording medium passes. The heating member heats the transfer-fixing surface of the recording medium conveyed toward the nip so that the recording medium reaches the nip before a temperature of a back surface opposite the transfer-fixing surface of the recording medium increases. The temperature equalization member equalizes temperature distribution on a surface of the transfer-fixing member in a width direction of the transfer-fixing member perpendicular to a conveyance direction of the recording medium, after the surface of the transfer-fixing member passes the nip.

    摘要翻译： 转印固定装置（66; 66A; 66B; 66C）转移并固定到记录介质的转印 - 定影表面上的调色剂图像，并且包括转印固定构件（27），按压件（68），一个 加热件（67; 67X; 67Y），和温度均衡构件（85）。 转印固定构件承载调色剂图像。 按压部件按压地接触转印固定构件，以形成所述按压构件和通过该记录介质通过转印定影部件之间的辊隙。 加热部件加热所述记录介质的转印 - 定影表面输送朝向辊隙所以做了记录介质到达背面的记录介质的增加的转移固定表面相对的温度之前的辊隙。 温度均衡构件在均衡转印固定部件的宽度方向上的转印 - 定影构件的表面上的温度分布在垂直于记录介质的输送方向，转印固定构件的表面经过咬合后。

    Colour image forming apparatus
    16.
    发明公开
    Colour image forming apparatus 有权
    彩色图像形成装置

    公开(公告)号：EP1424608A3

    公开(公告)日：2004-06-23

    申请号：EP03025417.1

    申请日：2003-11-05

    申请人： Ricoh Company, Ltd.

    发明人： Yoshida, Ken ,  Sawai, Yuuji ,  Ogiyama, Hiromi ,  Takehara, Atsushi ,  Kayahara, Shin ,  Kato, Shinji ,  Fujiwara, Yoshihiro

    IPC分类号： G03G15/00 ,  G03G15/16 ,  G03G15/01

    CPC分类号： G03G15/1605 ,  G03G2215/0119 ,  G03G2215/0164

    摘要： An intermediate image transfer type of image forming apparatus of the present invention includes an image carrier (40), an intermediate image transfer body (10), primary image transferring means (62) for transferring a toner image from the image carrier (40) to the intermediate image transfer body (10), and secondary image transferring means (22) for transferring the toner image from the intermediate image transfer body (10) to a sheet. When the surface resistivity of the intermediate image transfer body (10) is measured by a method that repeatedly applies a voltage of 200 V for 60 seconds to the intermediate image transfer body (10) and grounds the intermediate image transfer body (10) for 10 seconds 1,000 consecutive times, a difference in absolute value between the logarithm of the first time of measurement and that of the thousandth time of measurement is 0.5 log Ω/□ or below.

    摘要翻译： 本发明的中间图像转印型图像形成设备包括图像载体（40），中间图像转印体（10），用于将色调剂图像从图像载体（40）转印到图像载体（40）的主图像转印装置 中间图像转印体（10）和用于将来自中间图像转印体（10）的调色剂图像转印到纸张上的二次图像转印装置（22）。 当通过对中间图像转印体（10）重复施加200V电压60秒并将中间图像转印体（10）接地10的方法测量中间图像转印体（10）的表面电阻率时 秒连续1000次，第一次测量的对数与第一千次测量的对数之间的绝对值差为0.5logΩ/□或更低。

    Method and apparatus for image forming performing cleaning and discharging operations on image forming members
    17.
    发明公开
    Method and apparatus for image forming performing cleaning and discharging operations on image forming members 有权
    用于与Renigungs-的实施例中的图像形成和图像形成元件卸载操作的方法和装置

    公开(公告)号：EP1014218A2

    公开(公告)日：2000-06-28

    申请号：EP99309387.1

    申请日：1999-11-24

    申请人： Ricoh Company, Ltd

    发明人： Kayahara, Shin ,  Yu, Hideo ,  Takahashi, Mitsuru ,  Shintani, Takeshi

    IPC分类号： G03G15/16 ,  G03G21/00

    CPC分类号： G03G21/0005 ,  G03G15/161 ,  G03G15/162 ,  G03G2215/0174 ,  G03G2215/0177 ,  G03G2215/1661 ,  G03G2221/0005

    摘要： An image forming apparatus includes an image carrying member, an intermediate transfer member, a charging member, a transfer mechanism, a discharging member, a direct current voltage source, and a direct current voltage controller. The intermediate transfer member is deposited at a position facing and in contact with the image carrying member rotatably carrying a toner image on a rotating surface, and receives the toner image therefrom during a first transfer operation. The charging member applies a charge to the intermediate transfer member to cause an electric field around a region where the image carrying member and the intermediate transfer member contact with each other, where the electric field generates a force for initiating the first transfer operation. The transfer mechanism performs a second transfer operation for transferring the toner image from the intermediate transfer member to a transfer sheet. The discharging member performs a discharging operation for discharging the charge remaining on the intermediate transfer member with contacting the intermediate transfer member after a completion of the second transfer operation. The direct current voltage source applies a direct current voltage to the discharging member to cause the discharging member to perform the discharging operation. The direct current voltage controller controls the direct current voltage in accordance with a volume resistivity of the intermediate transfer member.