公开(公告)号：US08483597B2

公开(公告)日：2013-07-09

申请号：US12974655

申请日：2010-12-21

申请人： Ryuuichi Mimbu ,  Kenji Sengoku ,  Junpei Fujita ,  Osamu Ichihashi

发明人： Ryuuichi Mimbu ,  Kenji Sengoku ,  Junpei Fujita ,  Osamu Ichihashi

IPC分类号： G03G15/08

CPC分类号： G03G15/167 ,  G03G15/1605

摘要： A transfer assembly includes a counter member having a contact face, an engagement/disengagement unit to engage and disengage the image carrying face of image carrying member and the contact face of counter member using a cam, a pressure device to apply force to a transfer nip between the image carrying face and contact face, and a recording medium feed device to feed the recording medium to the transfer nip. When the cam is at a first rotation position, the image carrying face and contact face are separated, and when the cam is at a second rotation position, the image carrying face and contact face contact. Before the recording medium enters the transfer nip, the cam rotates from the first rotation position toward the second rotation position. After the recording medium enters the transfer nip, the cam is at the second rotation position to press the image carrying face with the contact face.

摘要翻译： 传送组件包括具有接触面的对置构件，接合/分离单元，用于使用凸轮接合和分离图像承载构件的图像承载面和相对构件的接触面;压力装置，用于向转印压区施加力 在图像承载面和接触面之间，以及记录介质供给装置，用于将记录介质输送到转印辊隙。 当凸轮处于第一旋转位置时，图像承载面和接触面被分离，并且当凸轮处于第二旋转位置时，图像承载面和接触面接触。 在记录介质进入转印辊隙之前，凸轮从第一旋转位置转动到第二旋转位置。 在记录介质进入转印辊隙之后，凸轮处于第二旋转位置，以用接触面按压图像承载面。

公开(公告)号：US08447198B2

公开(公告)日：2013-05-21

申请号：US13033302

申请日：2011-02-23

申请人： Junpei Fujita ,  Ryuuichi Mimbu ,  Kenji Sengoku ,  Osamu Ichihashi

发明人： Junpei Fujita ,  Ryuuichi Mimbu ,  Kenji Sengoku ,  Osamu Ichihashi

IPC分类号： G03G15/00 ,  G03G15/01

CPC分类号： G03G15/50 ,  G03G15/0136 ,  G03G15/1615 ,  G03G2215/0129 ,  G03G2215/0161

摘要： An image forming apparatus includes an endless intermediate transfer belt rotatably stretched over a plurality of rollers, and a detector to read a pattern on the intermediate transfer belt. One of the rollers includes a first portion disposed opposite an area on the intermediate transfer belt including a pattern passing position, and a second portion not including a pattern passing position. The first portion has a diameter smaller than that of the second portion thereof, and an elastic material is superimposed on the second portion only. The detector is disposed between a second roller disposed upstream of the first roller and a third roller disposed downstream of the first roller, and opposite the intermediate transfer belt.

摘要翻译： 图像形成装置包括可旋转地延伸在多个辊上的环形中间转印带，以及读取中间转印带上的图案的检测器。 其中一个辊包括与包括图案通过位置的中间转印带上的区域相对设置的第一部分和不包括图案通过位置的第二部分。 第一部分的直径小于其第二部分的直径，弹性材料仅重叠在第二部分上。 检测器设置在设置在第一辊的上游的第二辊和设置在第一辊的下游并与中间转印带相对的第三辊之间。

公开(公告)号：US07773928B2

公开(公告)日：2010-08-10

申请号：US11743254

申请日：2007-05-02

申请人： Hiromi Ogiyama ,  Junroh Uda ,  Ryuuichi Mimbu

发明人： Hiromi Ogiyama ,  Junroh Uda ,  Ryuuichi Mimbu

IPC分类号： G03G15/14

CPC分类号： G03G15/1675 ,  G03G2215/00654

摘要： A transfer-separation device includes an intermediate transfer unit, a secondary transfer roller, a repulsive roller, a transfer unit, and a charge-eliminating/separating member. The secondary transfer roller and the repulsive roller form a nip through which the intermediate transfer unit and a recording medium pass. The transfer unit applies a bias voltage of a polarity identical to that of a toner image to the repulsive roller to secondarily transfer the toner image onto the recording medium. The charge-eliminating/separating member separates the recording medium from the intermediate transfer unit by removing charge therefrom. The volume resistance of the repulsive roller is greater than that of the secondary transfer roller. The surface resistance of the secondary transfer roller is equal to or greater than 106.5 ohm.

摘要翻译： 转印分离装置包括中间转印单元，二次转印辊，排斥辊，转印单元和电荷消除/分离部件。 二次转印辊和排斥辊形成中间转印单元和记录介质通过的辊隙。 转印单元将与调色剂图像的极性相同的偏置电压施加到排斥辊，以将调色剂图像二次转印到记录介质上。 电荷消除/分离部件通过从中间转印单元除去电荷而将记录介质分离。 排斥辊的体积电阻大于二次转印辊的体积电阻。 二次转印辊的表面电阻等于或大于106.5欧姆。

公开(公告)号：US20070258737A1

公开(公告)日：2007-11-08

申请号：US11743254

申请日：2007-05-02

申请人： Hiromi OGIYAMA ,  Junroh Uda ,  Ryuuichi Mimbu

发明人： Hiromi OGIYAMA ,  Junroh Uda ,  Ryuuichi Mimbu

IPC分类号： G03G15/14

CPC分类号： G03G15/1675 ,  G03G2215/00654

摘要： A transfer-separation device includes an intermediate transfer unit, a secondary transfer roller, a repulsive roller, a transfer unit, and a charge-eliminating/separating member. The secondary transfer roller and the repulsive roller form a nip through which the intermediate transfer unit and a recording medium pass. The transfer unit applies a bias voltage of a polarity identical to that of a toner image to the repulsive roller to secondarily transfer the toner image onto the recording medium. The charge-eliminating/separating member separates the recording medium from the intermediate transfer unit by removing charge therefrom. The volume resistance of the repulsive roller is greater than that of the secondary transfer roller. The surface resistance of the secondary transfer roller is equal to or greater than 106.5 ohm.

摘要翻译： 转印分离装置包括中间转印单元，二次转印辊，排斥辊，转印单元和电荷消除/分离部件。 二次转印辊和排斥辊形成中间转印单元和记录介质通过的辊隙。 转印单元将与调色剂图像的极性相同的偏置电压施加到排斥辊，以将调色剂图像二次转印到记录介质上。 电荷消除/分离部件通过从中间转印单元除去电荷而将记录介质分离。 排斥辊的体积电阻大于二次转印辊的体积电阻。 二次转印辊的表面电阻等于或大于10欧姆欧姆。