公开(公告)号：US20080107448A1

公开(公告)日：2008-05-08

申请号：US11556324

申请日：2006-11-03

申请人： Masashi Takahashi ,  Takeshi Watanabe ,  Minoru Yoshida

发明人： Masashi Takahashi ,  Takeshi Watanabe ,  Minoru Yoshida

IPC分类号： G03G15/30

CPC分类号： G03G21/0064 ,  G03G21/0076 ,  G03G2221/001 ,  G03G2221/0089

摘要： To provide an image forming apparatus that performs image formation in accordance with a cleanerless system but less easily causes filming.An image forming apparatus of a cleanerless system having at least a charging unit, an exposing unit, a developing unit, and a transferring unit around a photoconductive drum includes brush assemblies 62 and 63 arranged to extend along a rotation axis direction of a photoconductive drum 3 between the transferring unit and the charging unit in order to collect or perturb a residual toner after transfer, a brush assembly guide 61 that can bring a tip surface of brush fibers of the brush assembly retractably into contact with an outer peripheral surface of the photoconductive drum to be opposed to the outer peripheral surface of the photoconductive drum and guide the brush assembly movably along the rotation axis direction of the photoconductive drum, and brush assembly driving units 204, 205, and 206 that drive the brush assembly guided by the brush assembly guide to move along the rotation axis direction of the photoconductive drum.

摘要翻译： 提供一种根据无清洁器系统执行图像形成但不容易导致成像的图像形成装置。 具有至少一个充电单元，曝光单元，显影单元和围绕感光鼓的转印单元的无清洁器系统的图像形成装置包括布置成沿着感光鼓3的旋转轴线方向延伸的刷组件62和63 在转印单元和充电单元之间，以便在转印之后收集或扰乱残留调色剂，刷组件引导件61可以使刷组件的刷纤维的尖端表面可伸缩地与感光鼓的外周表面接触 与感光鼓的外周表面相对并且沿着感光鼓的旋转轴线方向可移动地引导刷组件，以及刷组件驱动单元204,205和206，其驱动由刷组件引导件引导的刷组件 沿着感光鼓的旋转轴线方向移动。

公开(公告)号：US20070280746A1

公开(公告)日：2007-12-06

申请号：US11889639

申请日：2007-08-15

申请人： Takeshi Watanabe ,  Masashi Takahashi ,  Minoru Yoshida

发明人： Takeshi Watanabe ,  Masashi Takahashi ,  Minoru Yoshida

IPC分类号： G03G15/01

CPC分类号： G03G15/0121 ,  G03G2215/0119

摘要： In a tandem type color image forming apparatus having a function which collects a residual toner for recycle, a particle diameter distribution of a carrier is expressed as that a ratio of the number of carrier particles whose particle diameter is not smaller than φ40 μm is not greater than 5% and a ratio of the number of carrier particles whose particle diameter is not smaller than φ30 μm is not greater than 20%, or an intermediate transfer body which has a laminated structure including two or more layers and has a layer with the low hardness arranged on an image carrier, or a total toner layer thickness T1+T2+T3 of first to third transfer image is less than 30 μm.

摘要翻译： 在具有收集用于再循环的残留调色剂的功能的串联型彩色图像形成装置中，载体的粒径分布表示为粒径不小于phi40μm的载体颗粒数不大于 5％以下，粒径不小于phi30μm的载体颗粒数的比例不大于20％，或者具有包括两层或更多层并且具有低层的层的层叠结构的中间转印体 布置在图像载体上的硬度，或第一至第三转印图像的总调色剂层厚度T 1 + T 2 + T 3小于30μm。

公开(公告)号：US07197267B2

公开(公告)日：2007-03-27

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：US20060210310A1

公开(公告)日：2006-09-21

申请号：US11085004

申请日：2005-03-21

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： G03G21/0035 ,  G03G21/0064 ,  G03G21/0076 ,  G03G2221/001

摘要： In an image forming apparatus using simultaneous developing and cleaning type developing units, this invention installs brush members to disturb toners remaining on photosensitive drums movably in the direction to contact with photosensitive drums corresponding to the displacement of the surfaces of the photosensitive drums by empty weights and keep the ends of the brush members always in contact with the photosensitive drums.

摘要翻译： 在使用同时显影和清洁型显影单元的图像形成装置中，本发明安装刷构件以使与感光鼓相接触的方向可移动地移动地保持在感光鼓上的调色剂与感光鼓的表面的空位重叠对应， 保持刷子的端部始终与感光鼓接触。

公开(公告)号：US20060062599A1

公开(公告)日：2006-03-23

申请号：US10945440

申请日：2004-09-21

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： G03G15/08 ,  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：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。

公开(公告)号：US20090263166A1

公开(公告)日：2009-10-22

申请号：US12424978

申请日：2009-04-16

申请人： Minoru Yoshida ,  Takeshi Watanabe ,  Masashi Takahashi

发明人： Minoru Yoshida ,  Takeshi Watanabe ,  Masashi Takahashi

IPC分类号： G03G15/01

CPC分类号： G03G15/1605 ,  G03G15/0131 ,  G03G2215/0132

摘要： An image forming apparatus includes a plurality of image carrier members each configured to carry a latent image, a plurality of electrostatic chargers each configured to charge the image carrier member uniformly, a plurality of developing devices each configured to develop the latent image formed to the image carrier member by toner, a plurality of cleaners each configured to remove the toner remaining on the carrier member, an intermediate transfer member having a non-electroconductive material on which a developed image is transferred by one of the image carrier members and then another developed image is transferred over the developed image by another image carrier member and a plurality of transfer rollers each provided so as to oppose the image carrier member with the intermediary of the intermediate transfer member.

摘要翻译： 图像形成装置包括：多个图像载体构件，每个图像载体构件被配置为携带潜像;多个静电充电器，每个静电充电器均被构造成均匀地对图像载体构件充电;多个显影装置，每个显影装置被构造成显影形成于图像上的潜像 载体构件，多个清洁器，每个清洁器被构造成去除残留在载体构件上的调色剂;中间转印构件，其具有非导电材料，显影图像由其中一个图像载体构件传递到其上，然后是另一个显影图像 通过另一图像载体构件和多个转印辊在显影图像上转印，每个转印辊设置成与介质中间转印构件相对的图像载体构件。

公开(公告)号：US07426358B2

公开(公告)日：2008-09-16

申请号：US11081962

申请日：2005-03-17

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

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

IPC分类号： G03G15/30

CPC分类号： G03G15/167

摘要： There is provided an image forming apparatus comprising a developing device containing a toner having an average particle diameter of 2 to 5 μm and a spherical degree of 1 to 1.2, and a transfer member which is pressed against the image carrier by a pressing force having a total load of 150 g to 1500 g and a surface load of 10 to 150 g/cm2 at the time of transfer.

摘要翻译： 提供了一种图像形成装置，包括显影装置，该显影装置含有平均粒径为2〜5μm，球面度为1〜1.2的调色剂，以及转印部件，该转印部件通过具有 总负载为150g至1500g，转移时的表面负荷为10至150g / cm 2。

公开(公告)号：US20080166159A1

公开(公告)日：2008-07-10

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： G03G15/01 ,  G03G15/16

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。