公开(公告)号：US5600405A

公开(公告)日：1997-02-04

申请号：US257296

申请日：1994-06-09

申请人： Takao Umeda ,  Katsuya Kawai ,  Yosuke Saito ,  Hiroyuki Mabuchi ,  Masayasu Anzai ,  Masato Miwa ,  Takashi Suzuki ,  Teruaki Mitsuya ,  Yasuo Takuma

发明人： Takao Umeda ,  Katsuya Kawai ,  Yosuke Saito ,  Hiroyuki Mabuchi ,  Masayasu Anzai ,  Masato Miwa ,  Takashi Suzuki ,  Teruaki Mitsuya ,  Yasuo Takuma

IPC分类号： G03G15/00 ,  G03G15/16 ,  G03G21/00 ,  G03G21/10

CPC分类号： G03G15/161 ,  G03G15/166 ,  G03G2215/1657 ,  G03G2215/1661

摘要： A bias cleaning system has an electrically conductive brush roller for collecting toner which has to adhered a transfer belt by scrubbing the toner off the transfer belt under a condition in which a direct current voltage of the opposite polarity to the charge of the toner is applied to the brush roller. A corona charger is also provided for decreasing the amount of charge on the toner on the transfer belt in a region of the belt up-stream of the electrically conductive brush roller in the moving direction of the transfer belt.

摘要翻译： 偏置清洁系统具有用于收集调色剂的导电刷辊，该调色剂必须在将与调色剂电荷相反极性的直流电压施加到其上的条件下通过将调色剂从转印带上除去而粘附转印带 刷辊。 还提供电晕充电器，用于减小导电刷辊沿转印带移动方向的带上游区域中转印带上的调色剂上的电荷量。

公开(公告)号：US5579096A

公开(公告)日：1996-11-26

申请号：US498125

申请日：1995-07-05

申请人： Yousuke Saito ,  Takao Umeda ,  Masayasu Anzai ,  Hiroyuki Mabuchi ,  Yasuo Kikuchi ,  Masato Miwa ,  Takashi Suzuki

发明人： Yousuke Saito ,  Takao Umeda ,  Masayasu Anzai ,  Hiroyuki Mabuchi ,  Yasuo Kikuchi ,  Masato Miwa ,  Takashi Suzuki

IPC分类号： G03G15/16 ,  G03G21/10 ,  G03G15/14

CPC分类号： G03G15/166 ,  G03G2215/1647 ,  G03G2215/1661

摘要： An imaging apparatus such that residual toner on a transfer/conveyer mechanism such as a transfer belt and an intermediate transfer material is effectively removable. High-tension voltage opposite in magnetic polarity (plus) to the charged toner and a photosensitive drum is applied to a discharger 15 provided ahead of a drive member 12 for driving a transfer belt 6. The residual toner on the transfer belt 6 is removed by a brush 21, and the residual foreign substances come in contact with the photosensitive drum 1 and move onto the photosensitive drum 1 before a printing operation is started. The foreign substances are then removed by a photosensitive drum cleaner.

摘要翻译： 一种成像装置，使得诸如转印带和中间转印材料的转印/输送机构上的残留调色剂被有效地除去。 将带电调色剂和感光鼓的磁极性（正）相反的高压电压施加到设置在用于驱动转印带6的驱动部件12的前方的放电器15上。转印带6上的残留调色剂通过 刷21，残留的异物与感光鼓1接触并在打印操作开始之前移动到感光鼓1上。 然后通过感光鼓清洁器去除异物。

公开(公告)号：US5659841A

公开(公告)日：1997-08-19

申请号：US580354

申请日：1995-12-28

申请人： Takao Umeda ,  Hiroyuki Mabuchi ,  Masayasu Anzai ,  Shinji Asai ,  Kozi Kato ,  Yoshihiro Gunji

发明人： Takao Umeda ,  Hiroyuki Mabuchi ,  Masayasu Anzai ,  Shinji Asai ,  Kozi Kato ,  Yoshihiro Gunji

IPC分类号： G03G15/00 ,  G03G15/01 ,  G03G15/04 ,  G03G15/043 ,  G03G15/06 ,  G03G15/08 ,  G03G21/00

CPC分类号： G03G15/5037 ,  G03G15/01

摘要： An electrostatic recording control method wherein there are provided a single surface potential sensor between a first and second developer units, a detector for detecting the characteristic of a factor influencing the dark attenuation characteristic of the sensitive body, comprising the steps of: irradiating the surface of a charged sensitive body with the test pattern having prescribed exposure energy by an exposure system to form a test electrostatic image on the photosensitive body; passing the test electrostatic latent image with the developing function of the first developer unit stopping to measure the surface potential of the test electrostatic latent image by the sensor; changing the control setting potential at a position where the sensor is set according to the output from the detector; comparing the potential measured by the passing step with the control setting potential changed by the changing step to control one of the voltage to be applied to the latent image forming charger and the exposure energy for forming the test pattern so that the measurement potential is a control setting potential; forming a test electrostatic latent image on the photosensitive body after the comparing step; applying a prescribed bias to the first developer unit to form the first toner image corresponding to the test electrostatic latent image; and measuring the surface potential of the first toner image to set the bias voltage of the second developer unit according to the value measured.

摘要翻译： 一种静电记录控制方法，其中在第一和第二显影单元之间提供单个表面电位传感器，用于检测影响敏感体的暗衰减特性的因素的特性的检测器，包括以下步骤： 具有通过曝光系统具有规定曝光能量的测试图案的带电敏感体，以在感光体上形成测试静电图像; 使第一显影单元的显影功能通过测试静电潜像停止，以测量传感器测试的静电潜像的表面电位; 根据检测器的输出，在设定传感器的位置改变控制设定电位; 将通过步骤测量的电位与通过改变步骤改变的控制设置电位进行比较，以控制要施加到潜像形成充电器的电压中的一个和用于形成测试图案的曝光能量，使得测量电位为控制 设定潜力 在比较步骤之后在感光体上形成测试静电潜像; 对所述第一显影剂单元施加规定的偏压，以形成与所述测试静电潜像对应的第一调色剂图像; 以及测量第一调色剂图像的表面电位，以根据所测量的值设定第二显影剂单元的偏置电压。

公开(公告)号：US5623331A

公开(公告)日：1997-04-22

申请号：US451565

申请日：1995-05-26

申请人： Tadahiro Kaneko ,  Takao Umeda ,  Tsutomu Maekawa ,  Teruaki Mitsuya

发明人： Tadahiro Kaneko ,  Takao Umeda ,  Tsutomu Maekawa ,  Teruaki Mitsuya

IPC分类号： G03G15/20

CPC分类号： G03G15/2064 ,  G03G15/2028

摘要： A fixing unit includes a fixing roller, a pressure roller forming a nipper in cooperation with said fixing roller, the nipper conveying a recording material on which an unfixed image is formed while nipping the recording material, a recording material pressing roller disposed at least one of upstream and downstream of said nipper in a recording material conveyance direction for pressing said recording material toward the fixing roller to form a region where the recording material is wound around the fixing roller, and a tension applying unit for applying tension to the recording material.

摘要翻译： 定影单元包括定影辊，与所述定影辊配合形成钳口的压辊，夹持器，在夹持记录材料的同时传送其上形成有未定影图像的记录材料;记录材料加压辊，其设置在至少一个 在记录材料传送方向上的所述钳子的上游和下游，用于将所述记录材料压向定影辊，以形成记录材料缠绕在定影辊上的区域;以及张力施加单元，用于向记录材料施加张力。

公开(公告)号：US4959693A

公开(公告)日：1990-09-25

申请号：US266842

申请日：1988-11-03

申请人： Teruaki Mitsuya ,  Takao Kumasaka ,  Takao Umeda ,  Yasuro Hori ,  Ikuo Shimokobe ,  Nobuyoshi Hoshi

发明人： Teruaki Mitsuya ,  Takao Kumasaka ,  Takao Umeda ,  Yasuro Hori ,  Ikuo Shimokobe ,  Nobuyoshi Hoshi

IPC分类号： G03G15/00 ,  G03G15/20 ,  G03G15/23

CPC分类号： G03G15/6573 ,  G03G15/2064 ,  G03G15/234 ,  G03G2215/00421 ,  G03G2215/00586 ,  G03G2215/2083

摘要： An aerial recording sheet carrier is provided downstream of a fixing station. The aerial recording sheet carrier has one pair of pressure chambers with wall surfaces facing each other and in parallel. Air jets are arranged on opposite wall surfaces of the pressure chambers. A recording sheet and a toner image from the fixing station are carried by an air stream and cooled down. The toner image on the recording sheet, which is in fusion, is prevented from coming into contact with any parts, such as a recording sheet carrying passage. Thus a stain on parts due to contact with the toner image can be prevented.

摘要翻译： 在定影台的下游设置有空中记录纸托架。 空中记录纸托架具有一对压力室，壁面彼此面对并且平行。 空气喷嘴布置在压力室的相对的壁表面上。 来自定影台的记录纸和调色剂图像由气流携带并冷却。 防止记录片材上的调色剂图像在熔融中与诸如记录片材传送通道的任何部分接触。 因此，可以防止由于与调色剂图像接触而导致的零件上的污渍。

公开(公告)号：US06032015A

公开(公告)日：2000-02-29

申请号：US9425

申请日：1998-01-20

申请人： Takao Umeda ,  Ryoji Kojima ,  Masayasu Anzai ,  Michio Yokosuka ,  Katsuhiko Suzuki ,  Tadahiro Kaneko

发明人： Takao Umeda ,  Ryoji Kojima ,  Masayasu Anzai ,  Michio Yokosuka ,  Katsuhiko Suzuki ,  Tadahiro Kaneko

IPC分类号： G03G15/20 ,  G03G15/23 ,  G03G15/22

CPC分类号： G03G15/2053 ,  G03G15/231 ,  G03G2215/2083

摘要： A fixing system for fixing toner images onto an image printing system such that the image printing medium bearing the toner images on the obverse side and the reverse sides thereof is passed through a nip area between a pair of fixing rollers. In the nip area, a rotation speed of a first fixing roller, which comes into contact with a not-yet fixed toner image, which is formed on the obverse side of the image printing medium, is set to be substantially equal to a rotation speed of a second fixing roller, which comes in contact with a not-yet fixed toner image, formed on the reverse side of the image printing medium. This is accomplished by setting the diameters of the various layers of the first fixing roller to be equal to that of the second fixing roller. When the image printing medium is moved through the nip area by the fixing rollers, a moving speed of the upper side of the image printing medium is equal to that of the lower side thereof. Thus, stresses on the image printing medium are not caused, and no character blur takes place.

摘要翻译： 一种用于将调色剂图像定影到图像打印系统上的定影系统，使得承载其正面和反面上的调色剂图像的图像打印介质通过一对定影辊之间的辊隙区域。 在夹持区域中，形成在图像打印介质的正面上的与未固定的调色剂图像接触的第一定影辊的旋转速度被设定为基本上等于旋转速度 与形成在图像打印介质的背面上的未固定的调色剂图像接触的第二定影辊。 这是通过将第一定影辊的各层的直径设定为等于第二定影辊的直径来实现的。 当图像打印介质通过定影辊移动通过夹持区域时，图像打印介质的上侧的移动速度等于其下侧的移动速度。 因此，不会引起图像打印介质上的应力，并且不会发生字符模糊。

公开(公告)号：US5848323A

公开(公告)日：1998-12-08

申请号：US595221

申请日：1996-02-01

申请人： Takao Umeda ,  Ryoji Kojima ,  Masayasu Anzai ,  Michio Yokosuka ,  Katsuhiko Suzuki ,  Tadahiro Kaneko

发明人： Takao Umeda ,  Ryoji Kojima ,  Masayasu Anzai ,  Michio Yokosuka ,  Katsuhiko Suzuki ,  Tadahiro Kaneko

IPC分类号： G03G15/20 ,  G03G15/23 ,  G03G15/16

CPC分类号： G03G15/2053 ,  G03G15/231 ,  G03G2215/2083

摘要： In an electrostatic both-side printing system, a first image forming unit is provided upstream of an image printing medium when viewed in the transporting direction of the image printing medium, and a second image forming unit is provided downstream of the image printing medium. A medium transporting path for transporting the image printing medium is formed between the first and the second image forming units. A first transferring unit, located facing the first image forming unit with the medium transporting path intervening therebetween, for applying no charge onto the rear side of the image printing medium, which does not face the first image forming unit. A second transferring unit being located facing the second image forming unit with the image printing medium with the medium transporting path intervening therebetween, in a state that the second transferring unit is apart from a first toner image formed on the image printing medium by the first image forming unit. In the both-side printing system thus constructed, the first and the second image forming units, and the first and the second transferring units cooperate to form first and second toner images on both sides of the image printing medium, the first and the second toner images being opposite in polarity.

摘要翻译： 在静电双面打印系统中，当从图像打印介质的传送方向观察时，第一图像形成单元设置在图像打印介质的上游，并且第二图像形成单元设置在图像打印介质的下游。 用于传送图像打印介质的介质传送路径形成在第一和第二图像形成单元之间。 第一传送单元，面向第一图像形成单元，其间插入介质传送路径，用于不向第一图像形成单元面对的图像打印介质的后侧施加电荷。 第二传送单元在第二传送单元与由第一图像形成在第一图像打印介质上的第一调色剂图像分开的状态下面对第二图像形成单元定位，其中介质传送路径介于其间的图像打印介质 成型单元。 在如此构造的双面打印系统中，第一和第二图像形成单元以及第一和第二传送单元协作以在图像打印介质的两侧上形成第一和第二调色剂图像，第一和第二调色剂 图像极性相反。

公开(公告)号：US5630201A

公开(公告)日：1997-05-13

申请号：US607094

申请日：1996-02-28

申请人： Katsuhiko Suzuki ,  Takao Umeda ,  Masayasu Anzai

发明人： Katsuhiko Suzuki ,  Takao Umeda ,  Masayasu Anzai

IPC分类号： G03G13/09 ,  G03G15/09

CPC分类号： G03G15/09 ,  G03G13/09

摘要： The present invention provides a development apparatus capable of improving the development pole of a plurality of development rolls and the rotation speed thereof, thus obtaining stable printing quality. A first development roll rotatable in the opposite direction to the moving direction of photosensitive body is disposed in the upstream of it, whereas a group of second development rolls are disposed in the down stream, which development rolls are rotatable in the same direction as the moving direction of photoconductive body and have magnets of the same polarity. The first development roll and the photoconductive body define a peripheral speed ratio ranging from 0.5 to 1.5, while allowing the second development roll and the photoconductive body to define a peripheral speed ratio ranging from 0.6 to 1.5. A development control member is provided between the first development roll and the group of second development rolls. A toner density detector is provided in the downstream of the last one of the group of second development rolls which is disposed in the most significant downstream. A cross mixer and a carrier member are also provided under the first development roll and the group of second development rolls.

摘要翻译： 本发明提供一种能够改善多个显影辊的显影极和其转速的显影装置，从而获得稳定的印刷质量。 在与感光体的移动方向相反的方向上可旋转的第一显影辊设置在其上游，而一组第二显影辊设置在下游中，显影辊可沿与移动的相同的方向旋转 光电导体的方向并具有相同极性的磁体。 第一显影辊和光电导体定义范围为0.5至1.5的圆周速度比，同时允许第二显影辊和光电导体限定范围为0.6至1.5的圆周速度比。 显影控制部件设置在第一显影辊和第二显影辊组之间。 一组调色剂浓度检测器设置在设置在最重要的下游的第二显影辊组中最后一个的下游。 在第一显影辊和第二显影辊组下方还设置有交叉混合器和承载构件。

公开(公告)号：US5373351A

公开(公告)日：1994-12-13

申请号：US917709

申请日：1992-07-16

申请人： Takao Umeda ,  Tetsuya Nagata ,  Yasuo Takuma ,  Tatsuo Igawa

发明人： Takao Umeda ,  Tetsuya Nagata ,  Yasuo Takuma ,  Tatsuo Igawa

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

CPC分类号： G03G15/5037 ,  G03G15/08 ,  G03G15/1655 ,  G03G15/5033

摘要： A parallel circuit of a capacitor and a varistor is connected between a ground and an aluminum cap of a photosensitive drum having a photoconductor sheet wound on a surface of an aluminum drum. The capacitor is charged by a charger. A developer roll connected to a bias voltage supply is provided with a retraction mechanism and is controlled so that the developer roll is separated from the drum mechanically upon start of operation of a recording apparatus until a potential of the cap is increased to a predetermined value and a developing agent layer does not come into contact with the cap. Alternatively to retraction of the developing roll, the developing roll may be stopped to control a height of bristle of developing agent or a bias voltage of the developer may be reversed.

摘要翻译： 电容器和变阻器的并联电路连接在具有缠绕在铝鼓的表面上的感光鼓的感光鼓的接地和铝盖之间。 电容器由充电器充电。 连接到偏置电压源的显影辊具有退回机构，并被控制，使得显影辊在记录装置的操作开始时机械地与鼓分离直到盖的电位增加到预定值，并且 显影剂层不与盖接触。 替代显影辊的缩回，可以停止显影辊以控制显影剂的刷毛的高度，或显影剂的偏压可以颠倒。

公开(公告)号：US5559578A

公开(公告)日：1996-09-24

申请号：US175867

申请日：1993-12-30

申请人： Takao Umeda ,  Toru Miyasaka ,  Osamu Namikawa ,  Isamu Komatsu ,  Tetsuya Nagata ,  Yasuo Takuma ,  Tatsuo Igawa

发明人： Takao Umeda ,  Toru Miyasaka ,  Osamu Namikawa ,  Isamu Komatsu ,  Tetsuya Nagata ,  Yasuo Takuma ,  Tatsuo Igawa

IPC分类号： G03G15/00 ,  G03G15/02 ,  G03G15/08 ,  G03G15/16 ,  G03G21/00

CPC分类号： G03G15/5037 ,  G03G15/0266 ,  G03G15/08 ,  G03G15/1655 ,  G03G15/55 ,  G03G15/553 ,  G03G15/75 ,  G03G15/752

摘要： An electrostatic recording apparatus and a management system thereof wherein the recording apparatus includes a photoconductor drum having a cap provided at an opening of the drum and a photoconductor sheet wound on a portion of the drum other than the opening, with the photoconductor drum being rotated. The cap is electrified and a capacitor is provided between the cap and a terminal and charged through the cap to maintain the cap in an electrified state. A potential of the terminal is equal to a ground potential or a potential approximating the ground potential. Further, a controller is provided for discharging the electrified electric charge of the cap in response to a discharge instruction. A managing system may be provided for judging the state of the electrostatic recording apparatus.

摘要翻译： 一种静电记录装置及其管理系统，其中记录装置包括具有设置在鼓的开口处的盖的感光鼓和缠绕在除开口之外的滚筒的一部分上的感光鼓，使感光鼓旋转。 盖子通电，并且在盖子和端子之间提供电容器并通过盖子充电以将盖子保持在带电状态。 端子的电位等于接地电位或接近地电位的电位。 此外，提供控制器，用于响应于放电指令而对盖的带电电荷进行放电。 可以提供用于判断静电记录装置的状态的管理系统。