公开(公告)号：US06721521B2

公开(公告)日：2004-04-13

申请号：US09780347

申请日：2001-02-12

申请人： Hiroshi Kataoka ,  Tadasu Taniguchi ,  Keizo Fukunaga

发明人： Hiroshi Kataoka ,  Tadasu Taniguchi ,  Keizo Fukunaga

IPC分类号： G03G1501

CPC分类号： G03G21/1609 ,  G03G15/0194 ,  G03G2221/1603 ,  G03G2221/1684

摘要： An image forming apparatus includes the first image forming section for forming color images, and the second image forming section for forming monochrome images, wherein the first image forming section is slidable through an opening formed on the front face of the main body, while the second image forming section is slidable through an opening formed on the side face of the main body so that the first and second image forming sections slide in mutually orthogonal directions. With this arrangement, various maintenance operations of each unit can be performed while suppressing a reduction in strength of the main body, whereby degradation of image quality with life can be avoided for a long period of time.

摘要翻译： 图像形成装置包括形成彩色图像的第一图像形成部分和用于形成单色图像的第二图像形成部分，其中第一图像形成部分可以通过形成在主体前表面上的开口滑动，而第二图像形成部分 图像形成部可以通过形成在主体的侧面上的开口滑动，使得第一和第二图像形成部在相互正交的方向上滑动。 利用这种布置，可以在抑制主体强度的降低的同时进行各单元的各种维护操作，从而可以长时间避免图像质量随着寿命的降低。

公开(公告)号：US06389260B1

公开(公告)日：2002-05-14

申请号：US09714126

申请日：2000-11-17

申请人： Hiroshi Kataoka ,  Tadasu Taniguchi ,  Keizo Fukunaga ,  Eiichi Kido ,  Jitsuo Masuda ,  Naoki Fukudo

发明人： Hiroshi Kataoka ,  Tadasu Taniguchi ,  Keizo Fukunaga ,  Eiichi Kido ,  Jitsuo Masuda ,  Naoki Fukudo

IPC分类号： G03G1501

CPC分类号： G03G15/0194 ,  G03G2215/0119 ,  G03G2215/0132

摘要： Toner image forming means for forming toner images having chromatic colors of Y, M and C, respectively, are disposed on one side of an intermediate transfer belt, while disposing toner image forming means for forming a black toner image on the other side of the intermediate transfer belt, alone and on a most downstream side of all the toner image forming means. Further, when a toner image on the intermediate transfer belt includes toner having a reverse polarity, a transfer or developing process is controlled to reduce electrostatic attraction force acting on an image carrier, thus providing a color image forming device having a main body reduced in size and capable of faster image formation of a monochromatic image which is more frequently used, and of efficiently forming a color image by suppressing a back-transfer phenomenon and improving color reproducibility.

摘要翻译： 在中间转印带的一侧分别配置有分别具有Y，M和C的色彩的调色剂图像的调色剂图像形成装置，同时在中间转印带的另一侧上设置用于形成黑色调色剂图像的调色剂图像形成装置 转印带单独且位于所有调色剂图像形成装置的最下游侧。 此外，当中间转印带上的调色剂图像包括具有相反极性的调色剂时，控制转印或显影处理以减少作用在图像载体上的静电吸引力，从而提供具有减小尺寸的主体的彩色图像形成装置 并且能够更快速地形成更频繁使用的单色图像，并且通过抑制反转移现象和提高颜色再现性来有效地形成彩色图像。

公开(公告)号：US5812923A

公开(公告)日：1998-09-22

申请号：US764618

申请日：1996-12-11

申请人： Kouichi Yamauchi ,  Hiroshi Tachiki ,  Hiromu Yoshimoto ,  Atsuyuki Katoh ,  Yuhi Akagawa ,  Takayuki Ohno ,  Yoshinobu Tateishi ,  Keizo Fukunaga ,  Mitsuyoshi Terada ,  Fumio Shimazu ,  Takuya Abe ,  Kiyoshi Toizumi

发明人： Kouichi Yamauchi ,  Hiroshi Tachiki ,  Hiromu Yoshimoto ,  Atsuyuki Katoh ,  Yuhi Akagawa ,  Takayuki Ohno ,  Yoshinobu Tateishi ,  Keizo Fukunaga ,  Mitsuyoshi Terada ,  Fumio Shimazu ,  Takuya Abe ,  Kiyoshi Toizumi

IPC分类号： G03G15/00 ,  G03G15/16 ,  G03G15/20

CPC分类号： G03G15/6564 ,  G03G15/167 ,  G03G15/1695 ,  G03G15/2028 ,  G03G2215/00679 ,  G03G2215/00734 ,  G03G2215/00738 ,  G03G2215/00742

摘要： An image forming apparatus of the present invention includes a photoreceptor drum on which a toner image is formed, a transfer drum for transferring the toner image formed to transfer paper by bringing the transfer paper into contact with the photoreceptor drum, and a pair of register rollers for supplying the transfer paper to the transfer drum at a predetermined time and for curling the transfer paper in an arc. The register rollers include first and second rollers pressed against each other, the first roller being a predetermined hardness and the second roller being a hardness larger than the first roller. The transfer drum is disposed on the same side as the second roller with respect to an imaginary tangent line touching the surface of the second roller at one end of a contact section between the first and second rollers. The image forming apparatus also includes transporting means for supplying the transfer paper to the register rollers so that a front edge of the transfer paper comes into contact with the second roller, temporarily stops, and then continues to the transfer drum. The image forming apparatus also includes a means for changing the pressure that the register rollers are pressed together. Paper type, quality, thickness, and size are detected and the pressure is adjusted accordingly. The means for changing pressure includes a resilient member for the pressing the second roller against the first, and a changing member for changing the amount of deformation of the resilient member.

摘要翻译： 本发明的图像形成装置包括其上形成有调色剂图像的感光鼓，用于通过使转印纸与感光鼓接触而转印形成转印纸的调色剂图像的转印鼓和一对记录辊 用于在预定时间将转印纸提供给转印鼓，并将转印纸卷曲成弧形。 定位辊包括彼此压靠的第一和第二辊，第一辊是预定的硬度，第二辊的硬度大于第一辊。 转印鼓相对于在第一和第二辊之间的接触部分的一端处接触第二辊的表面的假想切线设置在与第二辊相同的一侧上。 图像形成装置还包括用于将转印纸供给到对准辊的传送装置，使得转印纸的前边缘与第二辊接触，暂时停止，然后继续到转印鼓。 图像形成装置还包括用于改变对准辊压在一起的压力的装置。 检测纸张类型，质量，厚度和尺寸，并相应调整压力。 用于改变压力的装置包括用于将第二辊压靠第一辊的弹性构件和用于改变弹性构件的变形量的改变构件。

公开(公告)号：US5017962A

公开(公告)日：1991-05-21

申请号：US366166

申请日：1989-06-14

申请人： Masaru Tsuji ,  Atsuyuki Katoh ,  Keizo Fukunaga

发明人： Masaru Tsuji ,  Atsuyuki Katoh ,  Keizo Fukunaga

IPC分类号： G03G15/00 ,  G03G15/08 ,  G03G21/16 ,  G03G21/18

CPC分类号： G03G21/1814 ,  G03G15/0896

摘要： An apparatus for the formation of images which includes two process-cartridges, one of which is a photosensitive cartridge including a photosensitive drum, a charger, a cleaning device, and the like, and the other of which is a developing cartridge including a developing device, a toner storage container, and a used toner collecting container; the developing cartridge being separated into a first cartridge including the developing device alone and a second cartridge including the toner storage container and the used toner collecting container, where the lifetime of the photosensitive cartridge is a first integer times the lifetime of the first cartridge, and the lifetime of the first cartridge is a second integer times the lifetime of the second cartridge, where each of the first and second integers is greater than one.

摘要翻译： 一种用于形成图像的装置，其包括两个处理盒，其中一个是包括感光鼓的感光盒，充电器，清洁装置等，另一个是包括显影装置的显影盒 ，调色剂储存容器和用过的调色剂收集容器; 显影盒被分离成包括单独的显影装置的第一盒和包括调色剂存储容器和二次用调色剂收集容器的第二盒，其中感光盒的寿命是第一盒的寿命的第一整数倍，以及 第一盒的寿命是第二盒的寿命的第二整数倍，其中第一和第二整数中的每一个大于1。

公开(公告)号：US4771316A

公开(公告)日：1988-09-13

申请号：US840451

申请日：1986-03-17

申请人： Masaru Nishijima ,  Shiyougo Iwai ,  Keizo Fukunaga ,  Kimihide Tsukamoto

发明人： Masaru Nishijima ,  Shiyougo Iwai ,  Keizo Fukunaga ,  Kimihide Tsukamoto

IPC分类号： G03B27/34 ,  G03B27/52 ,  G03G15/04 ,  G03G15/041 ,  G03G15/00

CPC分类号： G03G15/04 ,  G03G15/041

摘要： An electrophotographic copying machine device provided with a pair of lens arrays installed in parallel to enable variable- or actual-size copying and a means for selectively directing the light-path, allowing each lens array to select its light-path before projecting the original image onto a recording medium such as a photoreceptive drum, in which the copying device incorporates the following: equalizing the distance between original-scanning starting points for actual- and variable-size copying to the distance between light-exposure positions on the recording medium by applying variable-size lens array; equalizing the distance between light-exposure positions on the recording medium, corresponding to the original-scanning starting point, and the image transfer starting position, by which image on the recording medium is transferred to the transference material using the variable-size lens array, to the distance for transferring the transference material from its standby position to its transference position; and means for controlling engagement of the transference material held in a standby condition in response to the original-scanning operation activated with the variable-size lens array.

摘要翻译： 一种电子照相复印机装置，其具有平行安装的一对透镜阵列以实现可变或实际尺寸的复印，以及用于选择性地引导光路的装置，允许每个透镜阵列在投影原始图像之前选择其光路 在诸如感光鼓的记录介质上，其中复印设备包括以下内容：通过应用将均匀复印的原稿扫描起始点与记录介质上的曝光位置之间的距离相等 可变尺寸透镜阵列; 使记录介质上的图像与原始扫描起点相对应的记录介质上的曝光位置与图像传送开始位置之间的距离均衡，利用该可变尺寸透镜阵列将记录介质上的图像转印到传送材料上， 到转移材料从其待机位置到其转移位置的距离; 以及用于响应于用可变尺寸透镜阵列激活的原稿扫描操作来控制保持在待机状态下的移动材料的接合的装置。

公开(公告)号：US5742319A

公开(公告)日：1998-04-21

申请号：US407654

申请日：1995-03-21

申请人： Keizo Fukunaga ,  Yoshinobu Tateishi ,  Yuhi Akagawa ,  Mitsuyoshi Terada

发明人： Keizo Fukunaga ,  Yoshinobu Tateishi ,  Yuhi Akagawa ,  Mitsuyoshi Terada

IPC分类号： G03G15/08 ,  G03G21/16 ,  G03G21/18 ,  B41J2/385 ,  G03G13/04

CPC分类号： G03G21/1853 ,  G03G21/1633 ,  G03G21/1638 ,  G03G21/1647 ,  G03G21/168 ,  G03G2221/1603 ,  G03G2221/1624 ,  G03G2221/1687

摘要： An image forming apparatus having a main body whose upper section is split into first and second split lid sections. The first and second split lid sections are arranged to be freely opened and closed. A transfer body and a fixing device are detachably installed in the first split lid section, while a developing device and an image carrying body are installed in the second split lid section. The image carrying body and the transfer body are brought out of contact with each other by opening at least one of the first and second split lid sections. The transfer body and a fixing member are caused to be rotatable by opening the first lid section. With this structure, it is possible to easily repair a paper jam and perform maintenance of the respective sections without increasing the installation space.

摘要翻译： 一种图像形成装置，具有主体，其上部被分割成第一和第二分割盖部。 第一和第二分割盖部分被布置成自由地打开和关闭。 转印体和固定装置可拆卸地安装在第一分割盖部分中，而显影装置和图像承载体安装在第二分割盖部分中。 通过打开第一和第二分割盖部分中的至少一个，使图像承载体和转印体彼此脱离接触。 通过打开第一盖部使转印体和固定部件能够旋转。 利用这种结构，可以容易地修复卡纸并且在不增加安装空间的情况下进行各部分的维护。

公开(公告)号：US5623329A

公开(公告)日：1997-04-22

申请号：US383732

申请日：1995-02-03

申请人： Kouichi Yamauchi ,  Hiroshi Tachiki ,  Hiromu Yoshimoto ,  Atsuyuki Katoh ,  Yuhi Akagawa ,  Takayuki Ohno ,  Yoshinobu Tateishi ,  Keizo Fukunaga ,  Mitsuyoshi Terada ,  Fumio Shimazu ,  Takuya Abe ,  Kiyoshi Toizumi

发明人： Kouichi Yamauchi ,  Hiroshi Tachiki ,  Hiromu Yoshimoto ,  Atsuyuki Katoh ,  Yuhi Akagawa ,  Takayuki Ohno ,  Yoshinobu Tateishi ,  Keizo Fukunaga ,  Mitsuyoshi Terada ,  Fumio Shimazu ,  Takuya Abe ,  Kiyoshi Toizumi

IPC分类号： G03G15/00 ,  G03G15/16 ,  G03G15/20

CPC分类号： G03G15/6564 ,  G03G15/167 ,  G03G15/1695 ,  G03G15/2028 ,  G03G2215/00679 ,  G03G2215/00734 ,  G03G2215/00738 ,  G03G2215/00742

摘要： An image forming apparatus of the present invention includes a photoreceptor drum on which a toner image is formed, a transfer drum for transferring the toner image to paper by bringing the paper into contact with the photoreceptor drum, the transfer drum having a dielectric layer, a semi-conductive layer and a conductive layer laminated in this order from the paper side, a power source which is connected to the conductive layer so as to apply a predetermined voltage to the conductive layer, and a conductive roller for pressing the paper against a surface of the dielectric layer so as to produce a potential difference between the conductive layer and the paper. The potential difference induces charges of the same polarity as the voltage applied to the conductive layer on the surface of the dielectric layer, and charges of the opposite polarity on a back surface of the paper pressed against the surface of the dielectric layer. Thus, the paper electrostatically adheres to the transfer drum in a satisfactory manner. Moreover, unlike charging by atmospheric discharge, since the surface potential of the transfer drum is stable, it is possible to prevent unsatisfactory transfers and improve the image quality.

摘要翻译： 本发明的图像形成装置包括其上形成有调色剂图像的感光鼓，用于通过使纸与感光鼓接触而将调色剂图像转印到纸张上的转印鼓，转印鼓具有介电层， 半导电层和导电层，从纸侧依次层叠，连接到导电层以向导电层施加预定电压的电源，以及用于将纸压在表面上的导电辊 以产生导电层和纸之间的电位差。 电位差引起与施加到电介质层表面上的导电层的电压相同极性的电荷，并且在压在电介质层表面上的纸的背面上的相反极性的电荷。 因此，纸以令人满意的方式静电粘附到转印鼓上。 此外，与通过大气排放的充电不同，由于转印鼓的表面电位稳定，可以防止不令人满意的转印并提高图像质量。

公开(公告)号：US5412213A

公开(公告)日：1995-05-02

申请号：US54058

申请日：1993-04-29

申请人： Eiichi Kido ,  Yuhi Yui ,  Shunju Anzai ,  Syoichiro Yoshiura ,  Shinji Imagawa ,  Hiroaki Yoshida ,  Yoshikazu Kawasaki ,  Itaru Kawabata ,  Keizo Fukunaga ,  Toyokazu Mori ,  Masaru Tsuji

发明人： Eiichi Kido ,  Yuhi Yui ,  Shunju Anzai ,  Syoichiro Yoshiura ,  Shinji Imagawa ,  Hiroaki Yoshida ,  Yoshikazu Kawasaki ,  Itaru Kawabata ,  Keizo Fukunaga ,  Toyokazu Mori ,  Masaru Tsuji

IPC分类号： G03G15/02 ,  H01T19/04

CPC分类号： H01T19/04 ,  G03G15/0291 ,  G03G2215/028

摘要： A charger performs corona discharge by applying a voltage to a discharging electrode. The charger includes an electrode plate formed in the shape of a panel on the discharging electrode, a plurality of projecting portions disposed in an end portion of the electrode plate, and a plurality of projection groups formed in each of the projecting portions such that the projection groups are adjacent to each other in a thickness direction of the electrode plate.

摘要翻译： 充电器通过向放电电极施加电压来执行电晕放电。 充电器包括在放电电极上形成为板状的电极板，设置在电极板的端部中的多个突出部分和形成在每个突出部分中的多个突起组，使得突出部 组在电极板的厚度方向上彼此相邻。

公开(公告)号：US5367366A

公开(公告)日：1994-11-22

申请号：US49443

申请日：1993-04-20

申请人： Eiichi Kido ,  Yuhi Yui ,  Syunju Anzai ,  Syoichiro Yoshiura ,  Shinji Imagawa ,  Hiroaki Yoshida ,  Yoshikazu Kawasaki ,  Itaru Kawabata ,  Keizo Fukunaga ,  Toyokazu Mori ,  Masaru Tsuji

发明人： Eiichi Kido ,  Yuhi Yui ,  Syunju Anzai ,  Syoichiro Yoshiura ,  Shinji Imagawa ,  Hiroaki Yoshida ,  Yoshikazu Kawasaki ,  Itaru Kawabata ,  Keizo Fukunaga ,  Toyokazu Mori ,  Masaru Tsuji

IPC分类号： G03G15/02 ,  H01T19/04

CPC分类号： G03G15/0266 ,  G03G15/0291 ,  H01T19/04 ,  G03G2215/028

摘要： A charger charges a recording medium before irradiation of light to form an electrostatic latent image by irradiating light as an optical image onto a surface of the recording medium. The charger includes a discharging electrode having a plurality of projections for generating corona discharge to charge the recording medium surface, a conductive shield case having an opening face opposite to the recording medium and opposed to the discharging electrode, a holding member for holding the discharging electrode in the shield case in a state in which the discharging electrode is electrically insulated from the shield case, a conductive grid electrode electrically insulated and held between the discharging electrode and the recording medium, and a power supplying device for supplying a high voltage for discharge to the discharging electrode and setting a ratio of electric currents flowing through the grid electrode and the shield case such that these electric currents are approximately equal to each other. One form of the charger controllably moves the discharger electrode toward the recording medium for setting the value of the electric currents flowing through the grid electrode and the shield case until they are both equal to a predetermined reference value.

摘要翻译： 充电器在照射光之前对记录介质充电，以通过将光作为光学图像照射到记录介质的表面上来形成静电潜像。 充电器包括具有多个用于产生电晕放电以对记录介质表面充电的放电电极，具有与记录介质相对的开口面并与放电电极相对的导电屏蔽壳体，用于保持放电电极的保持构件 在放电电极与屏蔽壳电绝缘的状态下的屏蔽壳体中，电绝缘并保持在放电电极和记录介质之间的导电栅极，以及用于将放电电压提供给 放电电极，并设定流过栅格电极和屏蔽壳体的电流的比例，使得这些电流彼此近似相等。 充电器的一种形式可控制地将放电器电极移向记录介质，用于设定流经栅格电极和屏蔽壳的电流值，直到它们均等于预定的参考值。

公开(公告)号：US4757342A

公开(公告)日：1988-07-12

申请号：US945653

申请日：1986-12-23

申请人： Mitsuru Ogura ,  Keizo Fukunaga ,  Takeshi Yoshida

发明人： Mitsuru Ogura ,  Keizo Fukunaga ,  Takeshi Yoshida

IPC分类号： G03G21/18 ,  G03G15/00

CPC分类号： G03G21/181 ,  G03G21/1821 ,  G03G2221/1618 ,  G03G2221/1654 ,  G03G2221/1693 ,  G03G2221/183 ,  G03G2221/1853

摘要： A photoreceptor cartridge unit having a cartridge frame made of plastic on which a photoreceptor drum acting as a rotary member and its peripheral components are integrally mounted. The cartridge frame is formed with a plurality of bearing portions for supporting the rotary members and a plurality of positioning projections and is split, at the bearing portions, into two frame portions provided with an engageable portion and a receiver portion, respectively. The peripheral components are formed with a plurality of positioning holes so as to be mounted on the cartridge frame through engagement of the positioning projections with the positioning holes. The two frame portions are coupled with each other through engagement of the engageable portion with the receiver portion.

摘要翻译： 一种具有由塑料制成的盒框架的感光体单元，其上作为旋转构件的感光鼓及其周边部件一体地安装。 盒式框架形成有多个用于支撑旋转构件的轴承部分和多个定位突起，并且在轴承部分处分别设置有设置有可接合部分和接收器部分的两个框架部分。 周边部件形成有多个定位孔，以便通过定位突起与定位孔的接合来安装在盒框架上。 两个框架部分通过可接合部分与接收器部分的接合而彼此联接。