公开(公告)号：US20090074482A1

公开(公告)日：2009-03-19

申请号：US12204071

申请日：2008-09-04

申请人： Hajime Oyama ,  Katsuhiro Echigo ,  Takahiro Tamiya

发明人： Hajime Oyama ,  Katsuhiro Echigo ,  Takahiro Tamiya

IPC分类号： G03G15/20

CPC分类号： G03G15/161 ,  G03G15/1605 ,  G03G2215/1623

摘要： An intermediate transfer belt and a photosensitive member form a transfer nip. An electrode is arranged close to an inner surface of the intermediate transfer belt in a portion on an upstream side of a direction of endless movement of the intermediate transfer belt with respect to a downstream-side exit of the transfer nip and on a downstream side of the direction of endless movement with respect to a position at which a transfer roller charges the intermediate transfer belt. A voltage of same polarity as the polarity of a toner is applied to the electrode, so that there is no movement of an electric charge between the electrode and the intermediate transfer belt.

摘要翻译： 中间转印带和感光部件形成转印辊隙。 电极靠近中间转印带的内表面设置在中间转印带相对于转印辊隙的下游侧出口的环形运动方向的上游侧的一部分中，并且在下游侧 相对于转印辊对中间转印带进行充电的位置的无端运动的方向。 向电极施加与调色剂的极性相同极性的电压，使得电极和中间转印带之间不会发生电荷的移动。

公开(公告)号：US08121527B2

公开(公告)日：2012-02-21

申请号：US12034275

申请日：2008-02-20

申请人： Hajime Oyama ,  Katsuhiro Echigo ,  Takahiro Tamiya

发明人： Hajime Oyama ,  Katsuhiro Echigo ,  Takahiro Tamiya

IPC分类号： G03G15/20

CPC分类号： G03G15/162 ,  G03G15/161 ,  G03G15/1675

摘要： An exit blade is arranged on a downstream side of a transfer nip formed between a photosensitive element and a primary transfer roller, with an intermediate transfer belt being put therebetween, and brought into contact with an internal surface of the intermediate transfer belt. A neutralizing bias of the same polarity as that of the toner is applied to the exit blade, rather than a primary transfer bias voltage.

摘要翻译： 出口叶片布置在形成在感光元件和一次转印辊之间的转印辊隙的下游侧，中间转印带放置在其间并与中间转印带的内表面接触。 将与调色剂相同极性的中和偏压施加到出口叶片，而不是一次转印偏压。

公开(公告)号：US20090324306A1

公开(公告)日：2009-12-31

申请号：US12487216

申请日：2009-06-18

申请人： Katsuhiro Echigo ,  Hajime Oyama ,  Takahiro Tamiya

发明人： Katsuhiro Echigo ,  Hajime Oyama ,  Takahiro Tamiya

IPC分类号： G03G15/16

CPC分类号： G03G15/1605 ,  G03G2215/1623

摘要： A transfer device for use in an image forming apparatus includes at least two belt members constituting a secondary nip portion therebetween. The transfer device electrostatically transfers a toner image from one of the belt members onto a recording medium when the recording medium passes through the secondary nip portion. The transfer device includes a mechanism that supports the belt members such that the secondary nip portion is substantially linear; and a bias applying member that applies a secondary transfer bias at a substantially center portion of the secondary nip portion.

摘要翻译： 用于图像形成装置的转印装置包括在其间构成二次压合部的至少两个带部件。 当记录介质通过次级辊隙部分时，转印装置将调色剂图像从其中一个带部件静电转印到记录介质上。 传送装置包括支撑带部件的机构，使得二次压合部分基本上是线性的; 以及施加二次转印偏压在二次压合部的大致中心部分的偏压施加部件。

公开(公告)号：US08081913B2

公开(公告)日：2011-12-20

申请号：US12204071

申请日：2008-09-04

申请人： Hajime Oyama ,  Katsuhiro Echigo ,  Takahiro Tamiya

发明人： Hajime Oyama ,  Katsuhiro Echigo ,  Takahiro Tamiya

IPC分类号： G03G15/20

CPC分类号： G03G15/161 ,  G03G15/1605 ,  G03G2215/1623

摘要： An intermediate transfer belt and a photosensitive member form a transfer nip. An electrode is arranged close to an inner surface of the intermediate transfer belt in a portion on an upstream side of a direction of endless movement of the intermediate transfer belt with respect to a downstream-side exit of the transfer nip and on a downstream side of the direction of endless movement with respect to a position at which a transfer roller charges the intermediate transfer belt. A voltage of same polarity as the polarity of a toner is applied to the electrode, so that there is no movement of an electric charge between the electrode and the intermediate transfer belt.

摘要翻译： 中间转印带和感光部件形成转印辊隙。 电极靠近中间转印带的内表面设置在中间转印带相对于转印辊隙的下游侧出口的环形运动方向的上游侧的一部分中，并且在下游侧 相对于转印辊对中间转印带进行充电的位置的无端运动的方向。 向电极施加与调色剂的极性相同极性的电压，使得电极和中间转印带之间不会发生电荷的移动。

公开(公告)号：US20070217832A1

公开(公告)日：2007-09-20

申请号：US11687360

申请日：2007-03-16

申请人： Hajime Oyama ,  Katsuhiro Echigo ,  Takahiro Tamiya

发明人： Hajime Oyama ,  Katsuhiro Echigo ,  Takahiro Tamiya

IPC分类号： G03G15/01 ,  G03G15/16

CPC分类号： G03G15/1635 ,  G03G15/1605 ,  G03G15/161 ,  G03G2215/0129 ,  G03G2215/1623 ,  G03G2221/1642

摘要： An image forming apparatus includes at least one image forming unit, a primary transfer belt, and a secondary transferer. The image forming unit includes an image carrier and a primary transfer bias applicator. The secondary transferer includes a secondary transfer nip, a secondary transfer bias applicator, and a facing member facing the second transfer bias applicator. The secondary transfer bias applicator forms a secondary transfer electric field. The image forming apparatus further includes a bias applicator, a contact start site, and an electrode. The bias applicator applies a bias voltage having a same polarity as the normal charge polarity of the toner to the primary transfer belt, downstream of the primary transfer bias applicator. The recording medium starts to contact the toner image at the contact start site, located upstream of the secondary transfer nip, where the electrode forms an electric field.

摘要翻译： 图像形成装置包括至少一个图像形成单元，一次转印带和次要转印件。 图像形成单元包括图像载体和一次转印偏压施加器。 次级转移器包括二次转印压区，二次转印偏压施加器和面向第二转印偏压施加器的面对构件。 二次转印偏压施加器形成二次转印电场。 图像形成装置还包括偏置施加器，接触起始部位和电极。 偏置施加器将与调色剂的正常电荷极性相同的极性的偏置电压施加到一次转印偏压施加器的下游的一次转印带。 记录介质开始接触位于二次转印辊隙的上游的接触起始位置处的调色剂图像，其中电极形成电场。

公开(公告)号：US20060209151A1

公开(公告)日：2006-09-21

申请号：US11367541

申请日：2006-03-06

申请人： Takahiro Tamiya ,  Katsuhiro Echigo ,  Hajime Oyama ,  Hisashi Kikuchi

发明人： Takahiro Tamiya ,  Katsuhiro Echigo ,  Hajime Oyama ,  Hisashi Kikuchi

IPC分类号： B41J2/01

CPC分类号： B41J2/0057

摘要： A transfer member and a downstream-side neutralizing electrode make a contact with a rear portion of an intermediate transfer belt within a contact region. A transfer voltage with an opposite polarity to a regularly charged polarity of a toner is applied to the transfer member. A voltage with a same polarity as the regularly charged polarity of the toner is applied to the downstream-side neutralizing electrode.

摘要翻译： 转印部件和下游侧中和电极与接触区域内的中间转印带的后部接触。 将具有与调色剂的规则带电极性相反的极性的转印电压施加到转印部件。 具有与调色剂的规则带电极性相同极性的电压被施加到下游侧中和电极。

公开(公告)号：US08358955B2

公开(公告)日：2013-01-22

申请号：US12487216

申请日：2009-06-18

申请人： Katsuhiro Echigo ,  Hajime Oyama ,  Takahiro Tamiya

发明人： Katsuhiro Echigo ,  Hajime Oyama ,  Takahiro Tamiya

IPC分类号： G03G15/08

CPC分类号： G03G15/1605 ,  G03G2215/1623

摘要： A transfer device for use in an image forming apparatus includes at least two belt members constituting a secondary nip portion therebetween. The transfer device electrostatically transfers a toner image from one of the belt members onto a recording medium when the recording medium passes through the secondary nip portion. The transfer device includes a mechanism that supports the belt members such that the secondary nip portion is substantially linear; and a bias applying member that applies a secondary transfer bias at a substantially center portion of the secondary nip portion.

摘要翻译： 用于图像形成装置的转印装置包括在其间构成二次压合部的至少两个带部件。 当记录介质通过次级辊隙部分时，转印装置将调色剂图像从其中一个带部件静电转印到记录介质上。 传送装置包括支撑带部件的机构，使得二次压合部分基本上是线性的; 以及施加二次转印偏压在二次压合部的大致中心部分的偏压施加部件。

公开(公告)号：US07546074B2

公开(公告)日：2009-06-09

申请号：US11687360

申请日：2007-03-16

申请人： Hajime Oyama ,  Katsuhiro Echigo ,  Takahiro Tamiya

发明人： Hajime Oyama ,  Katsuhiro Echigo ,  Takahiro Tamiya

IPC分类号： G03G15/01

CPC分类号： G03G15/1635 ,  G03G15/1605 ,  G03G15/161 ,  G03G2215/0129 ,  G03G2215/1623 ,  G03G2221/1642

摘要： An image forming apparatus includes at least one image forming unit, a primary transfer belt, and a secondary transferer. The image forming unit includes an image carrier and a primary transfer bias applicator. The secondary transferer includes a secondary transfer nip, a secondary transfer bias applicator, and a facing member facing the second transfer bias applicator. The secondary transfer bias applicator forms a secondary transfer electric field. The image forming apparatus further includes a bias applicator, a contact start site, and an electrode. The bias applicator applies a bias voltage having a same polarity as the normal charge polarity of the toner to the primary transfer belt, downstream of the primary transfer bias applicator. The recording medium starts to contact the toner image at the contact start site, located upstream of the secondary transfer nip, where the electrode forms an electric field.

摘要翻译： 图像形成装置包括至少一个图像形成单元，一次转印带和次要转印件。 图像形成单元包括图像载体和一次转印偏压施加器。 次级转移器包括二次转印压区，二次转印偏压施加器和面向第二转印偏压施加器的面对构件。 二次转印偏压施加器形成二次转印电场。 图像形成装置还包括偏置施加器，接触起始部位和电极。 偏置施加器将与调色剂的正常电荷极性相同的极性的偏置电压施加到一次转印偏压施加器的下游的一次转印带。 记录介质开始接触位于二次转印辊隙的上游的接触起始位置处的调色剂图像，其中电极形成电场。

公开(公告)号：US20080213010A1

公开(公告)日：2008-09-04

申请号：US12034275

申请日：2008-02-20

申请人： Hajime OYAMA ,  Katsuhiro Echigo ,  Takahiro Tamiya

发明人： Hajime OYAMA ,  Katsuhiro Echigo ,  Takahiro Tamiya

IPC分类号： G03G15/20

CPC分类号： G03G15/162 ,  G03G15/161 ,  G03G15/1675

摘要： An exit blade is arranged on a downstream side of a transfer nip formed between a photosensitive element and a primary transfer roller, with an intermediate transfer belt being put therebetween, and brought into contact with an internal surface of the intermediate transfer belt. A neutralizing bias of the same polarity as that of the toner is applied to the exit blade, rather than a primary transfer bias voltage.

摘要翻译： 出口叶片布置在形成在感光元件和一次转印辊之间的转印辊隙的下游侧，中间转印带放置在其间并与中间转印带的内表面接触。 将与调色剂相同极性的中和偏压施加到出口叶片，而不是一次转印偏压。

公开(公告)号：US06184910B2

公开(公告)日：2001-02-06

申请号：US08418300

申请日：1995-04-07

申请人： Eiichi Sasaki ,  Tsuyoshi Deki ,  Nobuo Iwata ,  Takeshi Motohashi ,  Takahiro Tamiya ,  Yutaka Shio ,  Tomonori Yabuta

发明人： Eiichi Sasaki ,  Tsuyoshi Deki ,  Nobuo Iwata ,  Takeshi Motohashi ,  Takahiro Tamiya ,  Yutaka Shio ,  Tomonori Yabuta

IPC分类号： B41J2385

CPC分类号： G06K15/129 ,  B41J2/471 ,  G06K15/1219

摘要： A color image forming apparatus capable of superposing toner images of respective colors in accurate register by preventing an exposing position from being displaced in the subscanning direction. The rotation phase of a polygonal mirror is controlled on the basis of the mark detection timing of a mark sensor. Hence, the exposing position in the subscanning direction is prevented from being displaced without regard to irregularities in the circumferential length and feed speed of an intermediate image transfer belt.

摘要翻译： 一种彩色图像形成装置，其能够通过防止曝光位置在副扫描方向上移位而将精度寄存器中的各种颜色的调色剂图像叠加。 基于标记传感器的标记检测定时来控制多面镜的旋转相位。 因此，不考虑中间图像转印带的周长和进给速度的不规则性，防止副扫描方向上的曝光位置被移位。