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35 条记录 (耗时 0.032 秒)

    Transfer device for an image forming apparatus
    21.
    发明授权
    Transfer device for an image forming apparatus 失效
    转印装置用于图像形成装置

    公开(公告)号：US5623329A

    公开(公告)日：1997-04-22

    申请号：US383732

    申请日：1995-02-03

    申请人： Kouichi Yamauchi ,  Hiroshi Tachiki ,  Hiromu Yoshimoto ,  Atsuyuki Katoh ,  Yuhi Akagawa ,  Takayuki Ohno ,  Yoshinobu Tateishi ,  Keizo Fukunaga ,  Mitsuyoshi Terada ,  Fumio Shimazu ,  Takuya Abe ,  Kiyoshi Toizumi

    发明人： Kouichi Yamauchi ,  Hiroshi Tachiki ,  Hiromu Yoshimoto ,  Atsuyuki Katoh ,  Yuhi Akagawa ,  Takayuki Ohno ,  Yoshinobu Tateishi ,  Keizo Fukunaga ,  Mitsuyoshi Terada ,  Fumio Shimazu ,  Takuya Abe ,  Kiyoshi Toizumi

    IPC分类号： G03G15/00 ,  G03G15/16 ,  G03G15/20

    CPC分类号： G03G15/6564 ,  G03G15/167 ,  G03G15/1695 ,  G03G15/2028 ,  G03G2215/00679 ,  G03G2215/00734 ,  G03G2215/00738 ,  G03G2215/00742

    摘要： An image forming apparatus of the present invention includes a photoreceptor drum on which a toner image is formed, a transfer drum for transferring the toner image to paper by bringing the paper into contact with the photoreceptor drum, the transfer drum having a dielectric layer, a semi-conductive layer and a conductive layer laminated in this order from the paper side, a power source which is connected to the conductive layer so as to apply a predetermined voltage to the conductive layer, and a conductive roller for pressing the paper against a surface of the dielectric layer so as to produce a potential difference between the conductive layer and the paper. The potential difference induces charges of the same polarity as the voltage applied to the conductive layer on the surface of the dielectric layer, and charges of the opposite polarity on a back surface of the paper pressed against the surface of the dielectric layer. Thus, the paper electrostatically adheres to the transfer drum in a satisfactory manner. Moreover, unlike charging by atmospheric discharge, since the surface potential of the transfer drum is stable, it is possible to prevent unsatisfactory transfers and improve the image quality.

    摘要翻译： 本发明的图像形成装置包括其上形成有调色剂图像的感光鼓，用于通过使纸与感光鼓接触而将调色剂图像转印到纸张上的转印鼓，转印鼓具有介电层， 半导电层和导电层，从纸侧依次层叠，连接到导电层以向导电层施加预定电压的电源，以及用于将纸压在表面上的导电辊 以产生导电层和纸之间的电位差。 电位差引起与施加到电介质层表面上的导电层的电压相同极性的电荷，并且在压在电介质层表面上的纸的背面上的相反极性的电荷。 因此，纸以令人满意的方式静电粘附到转印鼓上。 此外，与通过大气排放的充电不同，由于转印鼓的表面电位稳定，可以防止不令人满意的转印并提高图像质量。

    Image forming apparatus
    23.
    发明授权
    Image forming apparatus 失效
    图像形成装置

    公开(公告)号：US6026256A

    公开(公告)日：2000-02-15

    申请号：US115257

    申请日：1998-07-14

    申请人： Takuya Abe ,  Kiyoshi Toizumi ,  Fumio Shimazu ,  Hiromu Yoshimoto ,  Kouichi Yamauchi ,  Hiroshi Tachiki ,  Tomohiro Oikawa ,  Yoshie Iwakura ,  Atsuyuki Katoh

    发明人： Takuya Abe ,  Kiyoshi Toizumi ,  Fumio Shimazu ,  Hiromu Yoshimoto ,  Kouichi Yamauchi ,  Hiroshi Tachiki ,  Tomohiro Oikawa ,  Yoshie Iwakura ,  Atsuyuki Katoh

    IPC分类号： G03G15/16

    CPC分类号： G03G15/1695 ,  G03G15/167 ,  G03G15/1675 ,  G03G15/168 ,  G03G15/1685 ,  G03G2215/1619 ,  G03G2215/1657

    摘要： An image forming apparatus includes a transfer drum which attracts and holds a transfer paper electrostatically. A voltage is applied to a conductive layer provided on an inner side of the transfer drum, and a grounded conductive electrode member is pressed against a dielectric layer provided on an outer side of the transfer drum through the transfer paper. A toner image formed on a photosensitive drum is transferred onto the transfer paper when the transfer paper is wound around the transfer drum and brought into contact with the photosensitive drum. The image forming apparatus further includes a member which charges the transfer paper in a polarity reversed to a polarity of the transfer drum, so that the transfer drum can attract the transfer sheet electrostatically in a satisfactory manner. The image forming apparatus further includes a mechanism for removing the charges on the surface of the transfer drum and cleaning the surface of the transfer drum so as to eliminate defects in a transferred image, thereby upgrading the quality of a resulting image.

    摘要翻译： 图像形成装置包括静电吸引和保持转印纸的转印鼓。 向设置在转印鼓内侧的导电层施加电压，并且通过转印纸将接地的导电电极部件压在设置在转印鼓外侧的电介质层上。 当转印纸缠绕在转印鼓上并与感光鼓接触时，在感光鼓上形成的调色剂图像转印到转印纸上。 图像形成装置还包括将转印纸极性反转到转印鼓的极性的装置，使得转印鼓可以以令人满意的方式静电吸引转印纸。 图像形成装置还包括用于去除转印鼓表面上的电荷并清洁转印鼓的表面的机构，以消除转印图像中的缺陷，从而提高所得图像的质量。

    Image forming apparatus equipped with register rollers for curling transfer paper
    24.
    发明授权
    Image forming apparatus equipped with register rollers for curling transfer paper 失效
    图像形成装置配备有用于卷曲转印纸的定位辊

    公开(公告)号：US5812923A

    公开(公告)日：1998-09-22

    申请号：US764618

    申请日：1996-12-11

    申请人： Kouichi Yamauchi ,  Hiroshi Tachiki ,  Hiromu Yoshimoto ,  Atsuyuki Katoh ,  Yuhi Akagawa ,  Takayuki Ohno ,  Yoshinobu Tateishi ,  Keizo Fukunaga ,  Mitsuyoshi Terada ,  Fumio Shimazu ,  Takuya Abe ,  Kiyoshi Toizumi

    发明人： Kouichi Yamauchi ,  Hiroshi Tachiki ,  Hiromu Yoshimoto ,  Atsuyuki Katoh ,  Yuhi Akagawa ,  Takayuki Ohno ,  Yoshinobu Tateishi ,  Keizo Fukunaga ,  Mitsuyoshi Terada ,  Fumio Shimazu ,  Takuya Abe ,  Kiyoshi Toizumi

    IPC分类号： G03G15/00 ,  G03G15/16 ,  G03G15/20

    CPC分类号： G03G15/6564 ,  G03G15/167 ,  G03G15/1695 ,  G03G15/2028 ,  G03G2215/00679 ,  G03G2215/00734 ,  G03G2215/00738 ,  G03G2215/00742

    摘要： An image forming apparatus of the present invention includes a photoreceptor drum on which a toner image is formed, a transfer drum for transferring the toner image formed to transfer paper by bringing the transfer paper into contact with the photoreceptor drum, and a pair of register rollers for supplying the transfer paper to the transfer drum at a predetermined time and for curling the transfer paper in an arc. The register rollers include first and second rollers pressed against each other, the first roller being a predetermined hardness and the second roller being a hardness larger than the first roller. The transfer drum is disposed on the same side as the second roller with respect to an imaginary tangent line touching the surface of the second roller at one end of a contact section between the first and second rollers. The image forming apparatus also includes transporting means for supplying the transfer paper to the register rollers so that a front edge of the transfer paper comes into contact with the second roller, temporarily stops, and then continues to the transfer drum. The image forming apparatus also includes a means for changing the pressure that the register rollers are pressed together. Paper type, quality, thickness, and size are detected and the pressure is adjusted accordingly. The means for changing pressure includes a resilient member for the pressing the second roller against the first, and a changing member for changing the amount of deformation of the resilient member.

    摘要翻译： 本发明的图像形成装置包括其上形成有调色剂图像的感光鼓，用于通过使转印纸与感光鼓接触而转印形成转印纸的调色剂图像的转印鼓和一对记录辊 用于在预定时间将转印纸提供给转印鼓，并将转印纸卷曲成弧形。 定位辊包括彼此压靠的第一和第二辊，第一辊是预定的硬度，第二辊的硬度大于第一辊。 转印鼓相对于在第一和第二辊之间的接触部分的一端处接触第二辊的表面的假想切线设置在与第二辊相同的一侧上。 图像形成装置还包括用于将转印纸供给到对准辊的传送装置，使得转印纸的前边缘与第二辊接触，暂时停止，然后继续到转印鼓。 图像形成装置还包括用于改变对准辊压在一起的压力的装置。 检测纸张类型，质量，厚度和尺寸，并相应调整压力。 用于改变压力的装置包括用于将第二辊压靠第一辊的弹性构件和用于改变弹性构件的变形量的改变构件。

    Image forming machine comprising three separable frames with opening/closing mechanisms between each frame
    26.
    发明授权
    Image forming machine comprising three separable frames with opening/closing mechanisms between each frame 失效
    图像形成机包括在每个框架之间具有开/关机构的三个可分离的框架

    公开(公告)号：US5285240A

    公开(公告)日：1994-02-08

    申请号：US885487

    申请日：1992-05-19

    申请人： Yoshiya Kinoshita ,  Kouichi Yamauchi

    发明人： Yoshiya Kinoshita ,  Kouichi Yamauchi

    IPC分类号： G03G15/00 ,  G03G21/16

    CPC分类号： G03G21/1647 ,  G03G21/1628 ,  G03G2221/1639 ,  G03G2221/1651 ,  G03G2221/1654 ,  G03G2221/1675 ,  G03G2221/18

    摘要： Opening/closing mechanisms for an image formation apparatus is provided to facilitate operations for exchange of, e.g., a fixing unit and paper jam. To exchange the fixing unit, a releasing lever 99a allows a pressing strip 55 to pivot a contact maker 67 of the first opening/closing mechanism X1 and pivot a pivoting member 65. Thus, a contact pad 71 can release an upper coupling strip 61 from a pin 62 of an intermediate frame 23, and an upper frame 24 can be independently opened. To remove a jammed paper, a switch lever 103b allows the pressing strip 55 to move horizontally. Thereafter, the pressing strip 55 is contacted with a lower releasing strip 54 of the second opening/closing mechanism X2 in response to operation of the releasing lever 99a. Thus, an engaging member 83 is released from a pin 81 of a lower frame 21 so that the upper frame 24 is released from the intermediate frame 23. Further, the contact maker 67 of the first opening/closing mechanism X1 is lowered by a spring 74, and transferred below a movement locus of the pressing strip 55. Therefore, the intermediate frame 23 never drops even if the releasing lever 99a is operated.

    摘要翻译： 提供用于图像形成装置的打开/关闭机构，以便于更换例如定影单元和卡纸的操作。 为了更换固定单元，释放杆99a允许按压带55枢转第一打开/关闭机构X1的接触器67并枢转枢转构件65.因此，接触垫71可以将上部联接带61从 可以独立地打开中间框架23的销62和上框架24。 为了去除卡住的纸张，开关杆103b允许按压带55水平移动。 此后，响应于释放杆99a的操作，按压条55与第二打开/关闭机构X2的下释放条54接触。 因此，接合构件83从下框架21的销81释放，使得上框架24从中间框架23释放。此外，第一打开/关闭机构X1的接触器67由弹簧 并且转移到按压条55的移动轨迹之下。因此，即使释放杠杆99a被操作，中间框架23也不会下降。

    Image forming apparatus
    28.
    发明授权
    Image forming apparatus 失效
    图像形成装置

    公开(公告)号：US06259869B1

    公开(公告)日：2001-07-10

    申请号：US09114928

    申请日：1998-07-14

    申请人： Takuya Abe ,  Kiyoshi Toizumi ,  Fumio Shimazu ,  Hiromu Yoshimoto ,  Kouichi Yamauchi ,  Hiroshi Tachiki ,  Tomohiro Oikawa ,  Yoshie Iwakura ,  Atsuyuki Katoh

    发明人： Takuya Abe ,  Kiyoshi Toizumi ,  Fumio Shimazu ,  Hiromu Yoshimoto ,  Kouichi Yamauchi ,  Hiroshi Tachiki ,  Tomohiro Oikawa ,  Yoshie Iwakura ,  Atsuyuki Katoh

    IPC分类号： G03G1502

    CPC分类号： G03G15/1695 ,  G03G15/167 ,  G03G15/1675 ,  G03G15/168 ,  G03G15/1685 ,  G03G2215/1619 ,  G03G2215/1657

    摘要： An image forming apparatus includes a transfer drum which attracts and holds a transfer paper electrostatically. A voltage is applied to a conductive layer provided on an inner side of the transfer drum, and a grounded conductive electrode member is pressed against a dielectric layer provided on an outer side of the transfer drum through the transfer paper. A toner image formed on a photosensitive drum is transferred onto the transfer paper when the transfer paper is wound around the transfer drum and brought into contact with the photosensitive drum. The image forming apparatus further includes a member which charges the transfer paper in a polarity reversed to a polarity of the transfer drum, so that the transfer drum can attract the transfer sheet electrostatically in a satisfactory manner. The image forming apparatus further includes a charge control mechanism for controlling the amount of charges on the photosensitive drum. In addition the photosensitive drum has a voltage applying mechanism for applying a voltage to the internal surface of the drum.

    摘要翻译： 图像形成装置包括静电吸引和保持转印纸的转印鼓。 向设置在转印鼓内侧的导电层施加电压，并且通过转印纸将接地的导电电极部件压在设置在转印鼓外侧的电介质层上。 当转印纸缠绕在转印鼓上并与感光鼓接触时，在感光鼓上形成的调色剂图像转印到转印纸上。 图像形成装置还包括将转印纸极性反转到转印鼓的极性的装置，使得转印鼓可以以令人满意的方式静电吸引转印纸。 图像形成装置还包括用于控制感光鼓上的电荷量的充电控制机构。 此外，感光鼓具有用于向鼓的内表面施加电压的电压施加机构。

    Image forming apparatus having transfer roller with charge-removing and cleaning devices
    30.
    发明授权
    Image forming apparatus having transfer roller with charge-removing and cleaning devices 失效
    图像形成装置具有带有除电和清洁装置的转印辊

    公开(公告)号：US6118954A

    公开(公告)日：2000-09-12

    申请号：US115260

    申请日：1998-07-14

    申请人： Takuya Abe ,  Kiyoshi Toizumi ,  Fumio Shimazu ,  Hiromu Yoshimoto ,  Kouichi Yamauchi ,  Hiroshi Tachiki ,  Tomohiro Oikawa ,  Yoshie Iwakura ,  Atsuyuki Katoh

    发明人： Takuya Abe ,  Kiyoshi Toizumi ,  Fumio Shimazu ,  Hiromu Yoshimoto ,  Kouichi Yamauchi ,  Hiroshi Tachiki ,  Tomohiro Oikawa ,  Yoshie Iwakura ,  Atsuyuki Katoh

    IPC分类号： G03G15/16

    CPC分类号： G03G15/1695 ,  G03G15/167 ,  G03G15/1675 ,  G03G15/168 ,  G03G15/1685 ,  G03G2215/1619 ,  G03G2215/1657

    摘要： An image forming apparatus includes a transfer drum which attracts and holds a transfer paper electrostatically. A voltage is applied to a conductive layer provided on an inner side of the transfer drum, and a grounded conductive electrode member is pressed against a dielectric layer provided on an outer side of the transfer drum through the transfer paper. A toner image formed on a photosensitive drum is transferred onto the transfer paper when the transfer paper is wound around the transfer drum and brought into contact with the photosensitive drum. The image forming apparatus further includes a member which charges the transfer paper in a polarity reversed to a polarity of the transfer drum, so that the transfer drum can attract the transfer sheet electrostatically in a satisfactory manner. The image forming apparatus further includes a mechanism for removing the charges on the surface of the transfer drum via a bias switching device and a cleaning device for cleaning the surface of the transfer drum so as to eliminate defects in a transferred image, thereby upgrading the quality of a resulting image. The cleaning device may be a blade having a particular engagement crossover between the blade and transfer drum.

    摘要翻译： 图像形成装置包括静电吸引和保持转印纸的转印鼓。 向设置在转印鼓内侧的导电层施加电压，并且通过转印纸将接地的导电电极部件压在设置在转印鼓外侧的电介质层上。 当转印纸缠绕在转印鼓上并与感光鼓接触时，在感光鼓上形成的调色剂图像转印到转印纸上。 图像形成装置还包括将转印纸极性反转到转印鼓的极性的装置，使得转印鼓可以以令人满意的方式静电吸引转印纸。 图像形成装置还包括用于通过偏压切换装置和用于清洁转印鼓表面的清洁装置去除转印鼓表面上的电荷的机构，以消除转印图像中的缺陷，从而提高质量 的结果图像。 清洁装置可以是在叶片和转印鼓之间具有特定接合交叉的叶片。