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：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：US07853188B2

公开(公告)日：2010-12-14

申请号：US11621814

申请日：2007-01-10

申请人： Takeshi Watanabe ,  Minoru Yoshida ,  Masashi Takahashi

发明人： Takeshi Watanabe ,  Minoru Yoshida ,  Masashi Takahashi

IPC分类号： G03G15/06 ,  G03G15/08 ,  G03G15/01 ,  G03G9/00 ,  G03G13/16

CPC分类号： G03G15/0194 ,  G03G2215/0132

摘要： A technology capable of suppressing the generation of transfer scattering of a toner image on an intermediate transfer body and contributing to an improvement in image quality in an image forming apparatus employing an intermediate transfer system is provided. An image forming apparatus is configured to include an intermediate transfer body to which a toner imager is transferred from an image carrier, the intermediate transfer body having an elastic surface layer having a center point average roughness of 0.1 times or more of a volume average particle size of a used toner and a ten-point average roughness of not more than the volume average particle size of the used toner; and a development section which develops an electrostatic latent image on the image carrier by using a toner having a shape factor SF-1 in the range of from 100 to 130 and a shape factor SF-2 in the range of from 100 to 140.

摘要翻译： 提供了能够抑制在中间转印体上产生调色剂图像的转印散射并有助于提高使用中间转印体系的图像形成装置中的图像质量的技术。 图像形成装置被配置为包括中间转印体，调色剂成像器从图像载体转印到该中间转印体上，中间转印体具有中心点平均粗糙度为体积平均粒径的0.1倍以上的弹性表面层 的二氧化碳调色剂和十点平均粗糙度不大于所使用的调色剂的体积平均粒度; 以及显影部，其通过使用形状系数SF-1在100至130的范围内的形状系数SF-2和100至140的范围内的形状因子SF-2的调色剂来使图像载体上的静电潜像显影。

公开(公告)号：US20100008690A1

公开(公告)日：2010-01-14

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： G03G15/16

CPC分类号： G03G15/162 ,  G03G2215/1623

摘要： It is an object of the invention to provide an image forming apparatus in which the quality of output images is improved by defining the relation between a measured value of an adhesion of toner and a physical property value of an intermediate belt and related technologies thereof.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： 本发明的目的是提供一种图像形成装置，其中通过定义调色剂的粘附的测量值和中间带的物理特性值之间的关系及其相关技术来改善输出图像的质量。 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：US20090116887A1

公开(公告)日：2009-05-07

申请号：US12350540

申请日：2009-01-08

申请人： Takeshi Watanabe ,  Masashi Takahashi ,  Minoru Yoshida

发明人： Takeshi Watanabe ,  Masashi Takahashi ,  Minoru Yoshida

IPC分类号： G03G21/00

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：US20080166158A1

公开(公告)日：2008-07-10

申请号：US11621808

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： G03G15/01

CPC分类号： G03G21/0064 ,  G03G15/162 ,  G03G2215/0177

摘要： In an image forming apparatus adopting a cleanerless process, there is provided a technique of preventing deterioration of picture quality due to photoreceptor filming or color mixture. An image forming apparatus of a cleanerless process in which a toner image is formed on an image bearing body by a developing unit, and a toner remaining on the image bearing body is collected by the developing unit, includes an intermediate transfer belt made of laminated layers of plural conductive materials different from each other and having a belt surface onto which the toner image is transferred from the image bearing body at a specified transfer position, and a transfer unit configured to press the intermediate transfer belt to the image bearing body at the specified transfer position and to apply a specified bias voltage to the intermediate transfer belt, wherein with respect to the plural conductive materials of the intermediate transfer belt, a layer closer to a side of either one of the toner transferred from the image bearing body and the transfer unit, where negative polarity is set, has a higher volume resistance value.

摘要翻译： 在采用无清洁剂处理的图像形成装置中，提供了防止由于感光体成膜或混色引起的图像质量劣化的技术。 一种无清洁器工艺的图像形成装置，其中通过显影单元在图像承载体上形成调色剂图像，并且由显影单元收集残留在图像承载体上的调色剂图像，包括由层压层制成的中间转印带 多个导电材料彼此不同，并且具有带表面，调色剂图像在图像承载体上以指定的转印位置转印到该带表面上;以及转印单元，其被配置为在指定的转印位置将中间转印带按图像承载体 转印位置，并向中间转印带施加指定的偏置电压，其中相对于中间转印带的多个导电材料，更靠近从图像承载体转印的调色剂中的任一个的一侧的层和转印 设置负极性的单位具有较高的体积电阻值。

公开(公告)号：US20080166152A1

公开(公告)日：2008-07-10

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. The image forming apparatus of a cleanerless process includes a development unit to movably hold plural developing devices to form images with toners of colors different from each other and to move a desired developing device to a specified development position opposite to the image bearing body by the movement, a collection unit capable of changing a mode between a collection mode of collecting the toner remaining on the image bearing body at a specified collection position of the image bearing body and a non-collection mode of not performing toner collection from the image bearing body, and a control unit to set, when a first developing device is changed to a second developing device in the development unit, the collection unit into the collection mode only in a specified period within a period from a second timing earlier than a first timing when the first developing device is changed to the second developing device by a time required for an image bearing surface of the image bearing body to move from the specified collection position to the specified development position to a third timing when a rear end of an area where the toner image is formed by the first developing device before the second developing device on the image bearing body reaches the specified collection position.

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合色。 无清洁剂处理的图像形成装置包括显影单元，用于可移动地保持多个显影装置以形成具有彼此不同的颜色的调色剂的图像，并且通过移动将期望的显影装置移动到与图像承载体相对的指定的显影位置 ，能够在图像承载体的指定收集位置收集残留在图像承载体上的调色剂的收集模式和从图像承载体不进行调色剂收集的非收集模式之间的模式的收集单元， 以及控制单元，当第一显影装置在显影单元中改变为第二显影装置时，将收集单元设置为仅在从第一定时开始的第二定时的期间内的指定时段内 第一显影装置通过图像承载面的图像承载面所需的时间改变为第二显影装置 当第二显影装置在图像承载体上的第一显影装置形成调色剂图像的区域的后端到达指定的集合体时，g指示体从指定的收集位置移动到指定的显影位置到第三时刻 位置。