公开(公告)号：US07929893B2

公开(公告)日：2011-04-19

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： G03G15/16

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：US07715758B2

公开(公告)日：2010-05-11

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： 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：US07650086B2

公开(公告)日：2010-01-19

申请号：US11481383

申请日：2006-07-05

申请人： Masashi Takahashi ,  Minoru Yoshida ,  Takeshi Watanabe

发明人： Masashi Takahashi ,  Minoru Yoshida ,  Takeshi Watanabe

IPC分类号： G03G15/08

CPC分类号： G03G15/0131 ,  G03G15/1605 ,  G03G15/161 ,  G03G21/0064

摘要： There is provided a technique in which when an image forming processing with toners of plural colors is performed, a residual toner on a transfer-receiving member to which toner images are transferred by plural image forming units is not discarded, but is reused as a black toner, and a deterioration in picture quality due to a change in color tone of the black toner is prevented. An image forming apparatus is for performing an image forming processing by plural image forming units to form toner images of colors different from each other on a transfer-receiving member moved in a specified direction, and includes a toner collecting unit to collect toners remaining on the transfer-receiving member, a ratio judgment unit to judge a mixing ratio of toners of plural colors included in the toners collected by the toner collecting unit, and a toner replenishing unit to replenish an insufficient color toner to the toners collected by the toner collecting unit based on the mixing ratio judged by the ratio judgment unit so that the mixing ratio becomes a specified ratio.

摘要翻译： 提供了一种技术，其中当执行具有多种颜色的调色剂的图像形成处理时，在多个图像形成单元上转印了调色剂图像的转印接收构件上的残留调色剂不被丢弃，而是被再次用作黑色 调色剂和由于黑色调色剂的色调变化引起的图像质量下降。 图像形成装置用于通过多个图像形成单元执行图像形成处理，以在沿指定方向移动的转印接收部件上形成彼此不同的颜色的调色剂图像，并且包括调色剂收集单元，用于收集残留在 转印接收部件，用于判断由调色剂收集单元收集的调色剂中包含的多种颜色的调色剂的混合比率的调色剂补偿单元，以补偿由调色剂收集单元收集的调色剂的不足的彩色调色剂 基于由比例判定单元判断的混合比，使混合比成为规定的比例。

公开(公告)号：US07486913B2

公开(公告)日：2009-02-03

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： 一种用于清洁图像形成装置中的多个鼓的装置和方法包括向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：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：US07865091B2

公开(公告)日：2011-01-04

申请号：US11621806

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： G03G15/08 ,  G03G15/01

CPC分类号： G03G15/0893 ,  G03G15/0851 ,  G03G15/0879 ,  G03G15/162 ,  G03G2215/0132 ,  G03G2215/0607 ,  G03G2215/066 ,  G03G2215/1623

摘要： A technology for controlling the generation of damages of a photoconductive surface caused due to the attachment of a carrier to a photoconductor in an image forming apparatus using a two-component developing agent is provided. An image forming apparatus is configured to include an intermediate transfer body having prescribed elasticity on a transfer surface onto which a toner image is transferred; plural image carriers which transfer a toner image onto the transfer surface and which are disposed along a movement direction of the transfer surface of the intermediate transfer body; plural development sections which form toner images having a different color from each other with respect to the plural image carriers by using a two-component developing agent made of a toner and a carrier; and developing agent replenishment sections which replenish a toner and a carrier in the development sections.

摘要翻译： 提供了一种用于控制由于在使用双组分显影剂的图像形成装置中将载体附着到感光体而导致的光电导表面损伤的产生的技术。 图像形成装置被配置为在转印表面上包含具有规定弹性的中间转印体，调色剂图像被转印到转印面上; 多个图像载体，其将调色剂图像转印到转印表面上并沿着中间转印体的转印表面的移动方向设置; 多个显影部分，通过使用由调色剂和载体构成的双组分显影剂，相对于多个图像载体形成彼此不同的颜色的调色剂图像; 以及在显影部中补充调色剂和载体的显影剂补充部。