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：US20120063804A1

公开(公告)日：2012-03-15

申请号：US13223798

申请日：2011-09-01

申请人： Daisuke Yamashita ,  Takeshi Watanabe ,  Masashi Takahashi

发明人： Daisuke Yamashita ,  Takeshi Watanabe ,  Masashi Takahashi

IPC分类号： G03G15/02

CPC分类号： G03G15/0258 ,  G03G15/0225

摘要： A charging device includes a charging member that is arranged close to a rotating charge target member, and charges a charge target surface of the charge target member while rotating, a cleaning member that makes friction contact with the charging member to cause the charging member to be driven and rotated, and cleans a surface of the charging member, and a cleaning member driving part to rotate and drive the cleaning member.

摘要翻译： 充电装置包括充电构件，其布置成靠近旋转的充电目标构件，并且在旋转时对充电目标构件的充电目标表面进行充电;清洁构件，其与充电构件摩擦接触以使充电构件为 驱动和旋转，并且清洁充电构件的表面，以及清洁构件驱动部分，以旋转和驱动清洁构件。

公开(公告)号：US20110293330A1

公开(公告)日：2011-12-01

申请号：US13150681

申请日：2011-06-01

申请人： Masashi Takahashi ,  Takeshi Watanabe ,  Daisuke Yamashita ,  Shoko Shimmura

发明人： Masashi Takahashi ,  Takeshi Watanabe ,  Daisuke Yamashita ,  Shoko Shimmura

IPC分类号： G03G15/02

CPC分类号： G03G15/0233 ,  G03G15/025

摘要： An image forming apparatus includes: a photoconductor that rotates about a first rotation axis; and a charging roller that rotates about a second rotation axis which is parallel to the first rotation axis, wherein the charging roller includes a conductive roller portion that extends in parallel with the first rotation axis and contains an ion-conductive agent, a flange portion that is provided on an outer peripheral surface of the conductive roller portion further to the outside than an image forming area of the photoconductor in the second rotation axis direction so as to protrude outward from the outer peripheral surface in the radial direction of the conductive roller portion into a flange shape, and an insulating elastic layer that coats the outer peripheral surface of the flange portion and has an elasticity higher than that of a photoconductive surface of the photoconductor.

摘要翻译： 一种图像形成装置包括：围绕第一旋转轴线旋转的感光体; 以及充电辊，其围绕与第一旋转轴线平行的第二旋转轴线旋转，其中充电辊包括与第一旋转轴线平行延伸并包含离子导电剂的导电辊部分，凸缘部分 在导电性辊部的外周面上设置成比第二旋转轴方向上的感光体的图像形成区域更向外侧突出，从而从导电性辊部的径向的外周面向外突出， 凸缘形状，以及覆盖凸缘部的外周面并具有比感光体的光电导面高的弹性的绝缘弹性层。

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：US07265768B2

公开(公告)日：2007-09-04

申请号：US11324229

申请日：2006-01-04

申请人： Shinji Aoki ,  Masashi Takahashi ,  Masashi Hiroki ,  Takeshi Watanabe

发明人： Shinji Aoki ,  Masashi Takahashi ,  Masashi Hiroki ,  Takeshi Watanabe

IPC分类号： B41J2/385

CPC分类号： G03G21/0064 ,  G03G15/0115 ,  G03G15/0173 ,  G03G15/0189 ,  G03G15/0194 ,  G03G15/0415 ,  G03G2215/0119 ,  G03G2215/0164 ,  G03G2215/0602

摘要： A photoreceptor cleanerless image forming apparatus and method for overlappingly forming yellow, cyan, magenta, and black toner images and decreasing color mixture or an exposure error due to reverse transfer toner or untransferred toner are provided. The image forming apparatus 100 comprises four image forming units 100a, 100b, 100c, and 100d configured to be photoreceptor cleanerless in a 4-drum tandem manner. Each image forming unit includes a photoreceptor 103a, 103b, 103c, or 103d, a charger 105a, 105b, 105c, or 105d, an exposure apparatus 106a, 106b, 106c, or 106d, and a developing apparatus 109a, 109b, 109c, or 109d. When exposure resolutions Ry, Rc, Rm, and Rk are assumed for exposure sources of the exposure apparatuses in the image forming units which form yellow, cyan, magenta, and black images, respectively, the exposure resolutions are configured to satisfy the conditions of Rk≦Rc≦Rm and Rm>Rk. This decreases an exposure error (image hysteresis) in an image formed on paper.

摘要翻译： 提供了一种用于重叠形成黄色，青色，品红色和黑色调色剂图像并降低颜色混合物或由于反向转印调色剂或未转印调色剂引起的曝光误差的光感受器无清洁器图像形成装置和方法。 图像形成装置100包括四个图像形成单元100a，100b，100c和100d，其被配置为以4 - 串联的方式成为光感受器无清洁器。 每个图像形成单元包括感光体103a，103b，103c或103d，充电器105a，105b，105c或105d，曝光设备106a，106b，106c或106d ，以及显影装置109a，109b，109c或109d。 对于分别形成黄色，青色，品红色和黑色图像的图像形成单元中的曝光装置的曝光源，假设曝光分辨率Ry，Rc，Rm和Rk，曝光分辨率被配置为满足条件Rk <= Rc <= Rm和Rm> Rk。 这降低了在纸上形成的图像中的曝光误差（图像迟滞）。