公开(公告)号：US5512982A

公开(公告)日：1996-04-30

申请号：US252179

申请日：1994-06-01

申请人： Masashi Takahashi ,  Shigeru Fujiwara ,  Minoru Yoshida ,  Takeshi Watanabe

发明人： Masashi Takahashi ,  Shigeru Fujiwara ,  Minoru Yoshida ,  Takeshi Watanabe

IPC分类号： G03G15/00 ,  G03G15/02

CPC分类号： G03G15/0266 ,  G03G15/0216 ,  G03G15/0291

摘要： An image-forming apparatus for forming an image, especially a halftone image, by using a photosensitive member, having a charging member for charging the photosensitive member, a mechanism for relatively moving the charging member and the photosensitive member, a voltage source for applying an oscillatory voltage to the charging member such that a Vp/f ratio is about from 0.08 to 0.42, wherein the Vp represents a relative moving speed between the charging member and the photosensitive member and the f represents a frequency of the oscillatory voltage, an exposing member for exposing the charged photosensitive member to form an electrostatic latent image, and a developing unit for developing the electrostatic latent image.

摘要翻译： 一种用于通过使用具有用于对感光构件充电的充电构件的感光构件形成图像，特别是半色调图像的图像形成装置，用于使充电构件和感光构件相对移动的机构，用于施加 振荡电压使得Vp / f比约为0.08至0.42，其中Vp表示充电构件和感光构件之间的相对移动速度，f表示振荡电压的频率，曝光构件 用于曝光带电感光件以形成静电潜像;以及显影单元，用于显影静电潜像。

公开(公告)号：US5455661A

公开(公告)日：1995-10-03

申请号：US207044

申请日：1994-03-08

申请人： Minoru Yoshida ,  Takeshi Watanabe ,  Shigeru Fujiwara ,  Masashi Takahashi

发明人： Minoru Yoshida ,  Takeshi Watanabe ,  Shigeru Fujiwara ,  Masashi Takahashi

IPC分类号： G03G15/02 ,  G03G15/16

CPC分类号： G03G15/0225 ,  G03G15/0216 ,  G03G15/168

摘要： A charging device in an image forming apparatus is provided with an image carrier such as a photosensitive drum or image forming medium on which an electrostatic latent image is developed. The charging device has a brush roller for charging the carrier. The roller brush is rotatably mounted and formed with inclined fibers planted on a shaft, the roller brush satisfying the following formulas:L.sub.2 .ltoreq.L.sub.1 -0.5L.sub.2 .gtoreq.L.sub.1 .times.0.5wherein L.sub.1 represents a length of fibers and L.sub.2 represents a thickness of the brush. The charging device further has means for removing the charges from the surface of the brush roller and means for cleaning an area where the charges are removed by the charge removing means.

摘要翻译： 图像形成装置中的充电装置设置有诸如感光鼓或图像形成介质的图像载体，在其上形成静电潜像。 充电装置具有用于对载体充电的刷辊。 辊刷可旋转地安装并形成有植入在轴上的倾斜纤维，该辊刷满足以下公式：L2≤L1-0.5L2> / = L1x0.5其中L1表示纤维的长度，L2表示厚度 的刷子。 充电装置还具有用于从刷辊的表面去除电荷的装置和用于清除通过电荷去除装置去除电荷的区域的装置。

公开(公告)号：US5486907A

公开(公告)日：1996-01-23

申请号：US208708

申请日：1994-03-11

申请人： Takeshi Watanabe ,  Minoru Yoshida ,  Shigeru Fujiwara ,  Masashi Takahashi

发明人： Takeshi Watanabe ,  Minoru Yoshida ,  Shigeru Fujiwara ,  Masashi Takahashi

IPC分类号： A46B15/00 ,  G03G15/02

CPC分类号： G03G15/0216

摘要： A brush charging device for an image forming apparatus, which charges a surface of an image carrier rotating in a predetermined direction, has a linear mount member, a base cloth mounted on the mount member and a brush member having fibers mounted on the base cloth at an angle .theta..sub.1. The angle .theta..sub.1 satisfies the following formula: cos.theta..sub.1 >c/(a+b) wherein a represents the radius of the image carrier, b represents the length of the brush fibers and c represents the distance between a point of intersection where a perpendicular line extending from the center of the image carrier to the base cloth intersects the base cloth and an edge portion of the base cloth located upstream going in the direction of the image carrier, and where the brush fibers contact the surface of the image carrier.

摘要翻译： 一种用于图像形成装置的电刷充电装置，其对沿预定方向旋转的图像载体的表面进行充电，具有直线安装构件，安装在安装构件上的基布和安装在基布上的纤维的刷构件 角度θ1。角度θ1满足以下公式：cosθ1> c /（a + b）其中a表示图像载体的半径，b表示刷状纤维的长度，c表示a 从图像载体的中心延伸到基布的垂直线与基布相交的位置点和位于沿图像载体的方向上游的基布的边缘部分的交点处，并且刷纤维接触表面 的图像载体。

公开(公告)号：US08219010B2

公开(公告)日：2012-07-10

申请号：US12499213

申请日：2009-07-08

申请人： Masashi Takahashi ,  Minoru Yoshida ,  Takeshi Watanabe

发明人： Masashi Takahashi ,  Minoru Yoshida ,  Takeshi Watanabe

IPC分类号： G03G15/01 ,  G03G15/20 ,  G03G21/00

CPC分类号： G03G15/162 ,  G03G2215/1623

摘要： In an image forming apparatus which transfers a toner image formed on a photoconductive member primarily onto the intermediate transfer belt and then transfers the same secondarily onto an image bearing medium, a relation; 40

摘要翻译： 在将形成在感光体上的调色剂图像主要转印到中间转印带上并随后将它们二次转印到图像承载介质上的图像形成装置中， 40

公开(公告)号：US20070140734A1

公开(公告)日：2007-06-21

申请号：US11677807

申请日：2007-02-22

申请人： Takeshi WATANABE ,  Masashi Takahashi ,  Minoru Yoshida

发明人： Takeshi WATANABE ,  Masashi Takahashi ,  Minoru Yoshida

IPC分类号： G03G15/30

CPC分类号： G03G21/0035 ,  G03G21/0047 ,  G03G2221/0005

摘要： An apparatus and method for cleaning a plurality of drums in an image forming apparatus includes applying a first bias to each of a plurality of disturbing members, each disturbing member associated with a corresponding drum of a plurality of drums. While performing an image forming operation wherein at least one of the plurality of drums is not use, the bias is changed of a disturbing member corresponding to at least one of the plurality of drums not used in performing the image forming operation from the first bias to a second bias different from the first bias.

摘要翻译： 用于清洁图像形成装置中的多个鼓的装置和方法包括：将多个干扰构件中的每一个施加第一偏压，每个干扰构件与多个鼓的相应鼓相关联。 在执行其中不使用多个滚筒中的至少一个的图像形成操作中，将与执行图像形成操作中未使用的多个滚筒中的至少一个的对应的干扰构件的偏差从第一偏置改变为 与第一偏差不同的第二偏差。

公开(公告)号：US20070104517A1

公开(公告)日：2007-05-10

申请号：US11647246

申请日：2006-12-29

申请人： Shoko Shimmura ,  Takashi Hatakeyama ,  Toshihiro Kasai ,  Minoru Yoshida ,  Takeshi Watanabe ,  Masashi Takahashi

发明人： Shoko Shimmura ,  Takashi Hatakeyama ,  Toshihiro Kasai ,  Minoru Yoshida ,  Takeshi Watanabe ,  Masashi Takahashi

IPC分类号： G03G15/09

CPC分类号： G03G15/09

摘要： In a color image forming apparatus of the invention, a developing roller of a developing device includes a magnet roller that is configured such that a developer supply pole, a developer convey pole and a developer release pole are properly arranged and fixed. The developer roller also includes an outer cylindrical roller that is formed of an electrically conductive material such as aluminum. A surface of the cylindrical roller is processed to have irregularities. Using the developing roller, simultaneous development/cleaning is executed. Thus, 100% of toner contributes to image formation, and no waste toner is produced. Post-transfer residual toner on a photoconductor body is efficiently recovered to the developing roller, and occurrence of an image defect such as development memory can be prevented.

摘要翻译： 在本发明的彩色图像形成装置中，显影装置的显影辊包括磁辊，该磁辊构造成使得显影剂供应极，显影剂输送极和显影剂释放极被适当地布置和固定。 显影辊还包括由诸如铝的导电材料形成的外圆柱形辊。 圆柱滚子的表面被加工成具有不规则性。 使用显影辊，执行同时显影/清洁。 因此，100％的调色剂有助于图像形成，并且不产生废调色剂。 光电导体上的转印后残留调色剂被有效地回收到显影辊，并且可以防止诸如显影记忆的图像缺陷的发生。

公开(公告)号：US20060062602A1

公开(公告)日：2006-03-23

申请号：US10945427

申请日：2004-09-21

申请人： Takashi Hatakeyama ,  Shoko Shimmura ,  Toshihiro Kasai ,  Minoru Yoshida ,  Takeshi Watanabe ,  Masashi Takahashi

发明人： Takashi Hatakeyama ,  Shoko Shimmura ,  Toshihiro Kasai ,  Minoru Yoshida ,  Takeshi Watanabe ,  Masashi Takahashi

IPC分类号： G03G15/08

CPC分类号： G03G15/0893 ,  G03G15/0877 ,  G03G15/0886 ,  G03G2215/0607 ,  G03G2215/0822

摘要： A CPU controls a shutter of a developing device so as to enable movement of a developer between a first chamber and a second chamber that store the developer. The CPU rotates a developing roller and mixers of the first and second chambers for a predetermined time T, and stirs and conveys the developer. Thereby, the developer is moved from the first chamber into the second chamber. The amount of movement of the developer is understandable from the rotational speed and shape of each mixer. Hence, the amount of developer, which is moved from the first chamber to the second chamber, is estimated in advance, and about half the developer in the first chamber is replaced.

摘要翻译： CPU控制显影装置的快门，以便能够在存储显影剂的第一室和第二室之间移动显影剂。 CPU将显影辊和第一和第二室的混合器旋转预定时间T，并搅拌并传送显影剂。 由此，显影剂从第一室移动到第二室。 显影剂的移动量可以从每个混合器的旋转速度和形状来理解。 因此，预先估计从第一室移动到第二室的显影剂的量，并且更换第一室中大约一半的显影剂。

公开(公告)号：US06970666B2

公开(公告)日：2005-11-29

申请号：US10804119

申请日：2004-03-19

申请人： Masashi Takahashi ,  Takeshi Watanabe ,  Minoru Yoshida ,  Shoko Shimmura

发明人： Masashi Takahashi ,  Takeshi Watanabe ,  Minoru Yoshida ,  Shoko Shimmura

IPC分类号： G03G15/16 ,  G03G15/00 ,  G03G15/06 ,  G03G15/14 ,  G03G21/00

CPC分类号： G03G15/168

摘要： An image forming apparatus comprises an image carrier which retains an electrostatic latent image corresponding to an original image, a developing device which sticks a toner to the electrostatic latent image to develop a toner image on the image carrier, an intermediate transferrer to which the toner image on the image carrier is transferred, a secondary transfer roller which transfers the toner image on the intermediate transferrer onto paper, and a cleaning member which cleans the secondary transfer roller. The secondary transfer roller can move to a first position to contact the intermediate transferrer, and to a second position to be separated from the intermediate transferrer, and the secondary transfer roller contacts the cleaning member at the second position.

摘要翻译： 图像形成装置包括保持对应于原始图像的静电潜像的图像载体，将调色剂粘附到静电潜像以在图像载体上显影调色剂图像的显影装置，调色剂图像的中间转印器 传送图像载体上的二次转印辊，其将中间转印器上的调色剂图像转印到纸上，以及清洁二次转印辊的清洁部件。 二次转印辊可以移动到第一位置以接触中间转印器，并且移动到与中间转印器分离的第二位置，并且二次转印辊在第二位置处接触清洁部件。

公开(公告)号：US20110008078A1

公开(公告)日：2011-01-13

申请号：US12826046

申请日：2010-06-29

申请人： Masashi Takahashi ,  Minoru Yoshida ,  Takeshi Watanabe

发明人： Masashi Takahashi ,  Minoru Yoshida ,  Takeshi Watanabe

IPC分类号： G03G15/01

CPC分类号： G03G15/162 ,  G03G15/0136 ,  G03G15/0194

摘要： According to one embodiment, an image forming apparatus includes a first image forming unit, a second image forming unit, and an intermediate transfer medium. The first image forming unit includes at least one image bearing member on which a first image is formed. The second image forming unit includes an image bearing member on which a second image is formed. The first image is primarily transferred onto the intermediate transfer medium. When the intermediate transfer medium is moved to a first position, the first image is secondarily transferred onto the image bearing member of the second image forming unit and tertiarily transferred onto a transfer medium from the image bearing member. When the intermediate transfer medium is moved to a second position, the second image is transferred onto the transfer medium from the image bearing member of the second image forming unit.

摘要翻译： 根据一个实施例，图像形成装置包括第一图像形成单元，第二图像形成单元和中间转印介质。 第一图像形成单元包括形成有第一图像的至少一个图像承载部件。 第二图像形成单元包括形成有第二图像的图像承载部件。 第一图像主要转印到中间转印介质上。 当中间转印介质移动到第一位置时，将第一图像二次转印到第二图像形成单元的图像承载部件上，并从图像承载部件三次转印到转印介质上。 当中间转印介质移动到第二位置时，第二图像从第二图像形成单元的图像承载部件转印到转印介质上。

公开(公告)号：US07848680B2

公开(公告)日：2010-12-07

申请号：US11621810

申请日：2007-01-10

申请人： Masashi Takahashi ,  Minoru Yoshida ,  Takeshi Watanabe

发明人： Masashi Takahashi ,  Minoru Yoshida ,  Takeshi Watanabe

IPC分类号： G03G15/30

CPC分类号： G03G21/0064 ,  G03G15/0121 ,  G03G15/0173 ,  G03G2215/0177

摘要： There is provided a technique in which in a four-rotation intermediate transfer system image forming apparatus, even in a state where a large amount of transfer residual toner is generated, the occurrence of color mixture of toners can be effectively suppressed.

摘要翻译： 提供了一种技术，其中在四旋转中间转印系统图像形成装置中，即使在产生大量转印残留调色剂的状态下，也可以有效地抑制调色剂的混色的发生。