公开(公告)号：US06330414B1

公开(公告)日：2001-12-11

申请号：US09409079

申请日：1999-09-30

申请人： Yasuo Takuma ,  Yoshitaka Fujinuma ,  Tomonari Hokkyou ,  Masayasu Anzai ,  Koji Kato

发明人： Yasuo Takuma ,  Yoshitaka Fujinuma ,  Tomonari Hokkyou ,  Masayasu Anzai ,  Koji Kato

IPC分类号： G03G1508

CPC分类号： G03G15/09 ,  G03G2215/0648

摘要： In a developing system containing a combination of forward-rotating and a backward-rotating developing rollers, a steady quantity of developing agent should be supplied to the developing rollers for high-quality printed images. This requirement can be satisfied by placing a doctor blade between an intersection point, where a line connecting the central axis of one of the developing rollers and its polarity reversing position meets a line connecting the central axis of the other of the developing rollers and its polarity reversing position, and the developing roller pair. Further, the doctor blade should be located on the upstream side of the developing agent flow relative to the central axes of the backward-rotating developing roller and the forward rotating developing roller with its rightmost side (upstream side) in parallel with the line connecting the central axes of the developing rollers, and the doctor gap (on the side of the developing roller to which the developing agent is supplied) should be greater than a minimum gap (doctor gap) between one end of the doctor blade and the surface of the developing roller to which the developing agent is first supplied.

摘要翻译： 在包含正向旋转和向后旋转的显影辊的组合的显影系统中，应将稳定量的显影剂供应到显影辊以获得高质量的印刷图像。 这种要求可以通过将刮刀放置在交叉点之间，其中连接显影辊中的一个的中心轴线和其极性反转位置的线与连接另一个显影辊的中心轴的线和其极性 反转位置和显影辊对。 此外，刮刀应当位于显影剂流的上游侧，相对于反转显影辊和向前旋转的显影辊的中心轴线，其最右侧（上游侧）与连接 显影辊的中心轴线和刮刀间隙（在显影剂供应的显影辊侧）应大于刮刀的一端与刮刀的表面之间的最小间隙（刮刀间隙） 首先提供显影剂的显影辊。

公开(公告)号：US5923933A

公开(公告)日：1999-07-13

申请号：US23462

申请日：1998-02-13

申请人： Masayasu Anzai ,  Tsuneaki Kawanishi ,  Yoshitaka Fujinuma ,  Hiroyoshi Matsumoto ,  Yasuo Takuma ,  Hisao Okada ,  Masayuki Ainoya ,  Takashi Suzuki ,  Yuichiro Suzuki ,  Tomonari Hokkyo ,  Koji Kato ,  Katsuya Kawai ,  Tsutomu Nakagawa

发明人： Masayasu Anzai ,  Tsuneaki Kawanishi ,  Yoshitaka Fujinuma ,  Hiroyoshi Matsumoto ,  Yasuo Takuma ,  Hisao Okada ,  Masayuki Ainoya ,  Takashi Suzuki ,  Yuichiro Suzuki ,  Tomonari Hokkyo ,  Koji Kato ,  Katsuya Kawai ,  Tsutomu Nakagawa

IPC分类号： G03G15/09

CPC分类号： G03G15/09 ,  G03G2215/0609 ,  G03G2215/0648

摘要： A uniform image is obtained by matching the sliding friction force, the moving speed and the developing agent in a developing region of two developing rollers and an electric characteristic of a photosensitive body used for image development. Two developing rollers rotating in directions opposite to each other are used, the moving direction of the first developing roller being opposite to the moving direction of the photosensitive body, and a circumferential speed ratio of a circumferential speed of the first developing roller to a circumferential speed of the photosensitive body is within a rage of 0.5 to 2.5; and the moving direction of the second developing roller is equal to the moving direction of the photosensitive body, and a circumferential speed ratio of a circumferential speed of the second developing roller to a circumferential speed of the photosensitive body is within a range of 1.5 to 3.5. A ratio of the sliding friction force between a magnetic brush for developing agent and the photosensitive body formed in the first developing roller and the sliding friction force between a magnetic brush for developing agent and the photosensitive body formed in the second developing roller is within a range of 0.9 to 2.1.

摘要翻译： 通过匹配两个显影辊的显影区域中的滑动摩擦力，移动速度和显影剂以及用于图像显影的感光体的电特性来获得均匀的图像。 使用沿彼此相反的方向旋转的两个显影辊，第一显影辊的移动方向与感光体的移动方向相反，并且第一显影辊的圆周速度与圆周速度的圆周速度比 的感光体在0.5〜2.5的范围内; 并且第二显影辊的移动方向等于感光体的移动方向，并且第二显影辊的圆周速度与感光体的圆周速度的圆周速度比在1.5至3.5的范围内 。 用于显影剂的磁刷和形成在第一显影辊中的感光体之间的滑动摩擦力与显影剂用磁刷与形成在第二显影辊中的感光体之间的滑动摩擦力之间的滑动摩擦力的比率在一定范围内 为0.9至2.1。

公开(公告)号：US5907755A

公开(公告)日：1999-05-25

申请号：US73768

申请日：1998-05-07

申请人： Yasuo Takuma ,  Yoshitaka Fujinuma ,  Masayasu Anzai ,  Hisao Okada

发明人： Yasuo Takuma ,  Yoshitaka Fujinuma ,  Masayasu Anzai ,  Hisao Okada

IPC分类号： G03G15/08 ,  G03G13/08 ,  G03G13/09

CPC分类号： G03G13/08 ,  G03G13/09 ,  G03G2215/0648

摘要： A predetermined mathematical formula, which defines an occurrence degree of an image defect where the toner layer is thinned or no toner image is formed, is set up, which is valid for a developing device including a reverse turn developer carrier and a forward turn developer carrier. A difference between the total sum A of the values by the above formula showing the occurrence degree of the image defect on the forward turn developing roller and the total sum B of the values by the above formula showing the occurrence degree on the reverse turn developing roller, i.e., (A-B), is selected within a range of -0.56 to +0.5.

摘要翻译： 确定限定了调色剂层变薄或不形成调色剂图像的图像缺陷的发生程度的预定数学公式，其对于包括反转显影剂载体和正向转动显影剂载体的显影装置是有效的 。 表示前转显影辊上的图像缺陷的发生程度的上述公式的总和A与通过上述公式的值的总和B之间的差值表示反转显影辊的发生程度 ，即（AB）在-0.56至+0.5的范围内选择。

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：US6157798A

公开(公告)日：2000-12-05

申请号：US285651

申请日：1999-04-05

申请人： Tsuneaki Kawanishi ,  Tomonari Hokkyo ,  Katsuya Kawai ,  Koji Kato ,  Masayasu Anzai

发明人： Tsuneaki Kawanishi ,  Tomonari Hokkyo ,  Katsuya Kawai ,  Koji Kato ,  Masayasu Anzai

IPC分类号： G03G9/09 ,  G03G5/043 ,  G03G5/047 ,  G03G5/05 ,  G03G5/06 ,  G03G5/147 ,  G03G9/08 ,  G03G9/097 ,  G03G9/10 ,  G03G13/09 ,  G03G15/00

CPC分类号： G03G5/047 ,  G03G13/09 ,  G03G5/0507 ,  G03G9/09708 ,  G03G9/10

摘要： An electrostatic recording apparatus including: an image carrier including an organic photoconductive photoreceptor having an abrasion-resisting outermost periphery; an exposing unit which exposes the image carrier to form an electrostatic latent image thereon; a developing unit which contains a toner and develops the electrostatic latent image with the toner to form a toner image; a transferring unit which transfers the toner image thus formed onto a recording medium; and a fixing unit which fixes the transferred toner image on said recording medium, wherein the toner contained in said developing unit includes an electrically conductive fine powder attached to the surface thereof.

摘要翻译： 一种静电记录装置，包括：包括具有耐磨损最外周边的有机光电导性感光体的图像载体; 暴露单元，其暴露所述图像载体以在其上形成静电潜像; 显影单元，其包含调色剂并用调色剂显影静电潜像以形成调色剂图像; 转印单元，其将如此形成的调色剂图像转印到记录介质上; 以及固定单元，其将转印的调色剂图像固定在所述记录介质上，其中包含在所述显影单元中的调色剂包括附着在其表面上的导电细粉末。

公开(公告)号：US6047147A

公开(公告)日：2000-04-04

申请号：US310990

申请日：1999-05-13

申请人： Koji Kato ,  Masayasu Anzai ,  Hisayoshi Kato

发明人： Koji Kato ,  Masayasu Anzai ,  Hisayoshi Kato

IPC分类号： G03G15/01 ,  G03G15/06 ,  G03G15/08

CPC分类号： G03G15/0121

摘要： In an image forming apparatus, the absolute value (.vertline.VBH-VM.vertline.) of the potential difference between a first development bias electric potential (VBH) and an intermediate electric potential (VM) is set to be smaller (.vertline.VBH-VM.vertline.

摘要翻译： 在图像形成装置中，将第一显影偏压电位（VBH）和中间电位（VM）之间的电位差的绝对值（| VBH-VM|）设定为较小（| VBH-VM | | VBL-VM|）比第二显影偏置电位（VBL）和中间电位（VM）之间的电位差的绝对值（| VBL-VM|）。

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：US5701560A

公开(公告)日：1997-12-23

申请号：US675545

申请日：1996-07-03

申请人： Akio Tsujita ,  Masayasu Anzai ,  Tsuneaki Kawanishi

发明人： Akio Tsujita ,  Masayasu Anzai ,  Tsuneaki Kawanishi

IPC分类号： G03G15/00 ,  G03G5/08 ,  G03G13/26 ,  G03G15/04 ,  G03G15/08 ,  G03G15/32 ,  G03G21/08

CPC分类号： G03G15/326 ,  G03G15/04054 ,  G03G21/08

摘要： In an image forming apparatus forming an electrostatic latent image on a surface of a photosensitive body by exposing the charged photosensitive body, developing the latent image using a toner to form a toner image, transferring the toner image to a image holding body, and erasing the remaining charge on the surface of the photosensitive body after completion of the transferring, the photosensitive body is formed of a base material consisting of As.sub.2 Se.sub.3 or a-Si, and wherein the wavelength .lambda..sub.0 of the writing light used for the exposure is limited to a wavelength not larger than 780 nm, the wavelength .lambda..sub.1 of charge erasing light used for the charge erasing is limited to a wavelength smaller than 680 nm, and the time T.sub.1 from completion of the exposure to initiation of the development is limited within the range of 70 milliseconds to 300 milliseconds.

摘要翻译： 在通过曝光带电感光体在感光体的表面上形成静电潜像的图像形成设备中，使用调色剂将潜像显影以形成调色剂图像，将调色剂图像转印到图像保持体上，并且擦除 感光体完成后在感光体的表面上剩余电荷，感光体由As2Se3或a-Si构成的基体材料形成，其中用于曝光的书写光的波长λ0限于 波长不大于780nm，用于电荷擦除的电荷擦除光的波长λ1被限制为小于680nm的波长，并且从开始开始的曝光完成的时间T1被限制在 70毫秒到300毫秒。

公开(公告)号：US4427755A

公开(公告)日：1984-01-24

申请号：US56359

申请日：1979-07-10

申请人： Kazuyoshi Tokunaga ,  Masayasu Anzai

发明人： Kazuyoshi Tokunaga ,  Masayasu Anzai

IPC分类号： G03G15/16 ,  G03G13/16 ,  G03G15/00

CPC分类号： G03G13/16

摘要： In a method for electrophotography comprising an electrostatic transfer process, after an electrostatic latent image formed on a surface of a photoconductive and photosensitive member has been developed with toner, the surface of the photoconductive and photosensitive member and a toner image are charged at the same polarity as the electrostatic latent image and thereafter the toner image is electrostatically transferred onto a recording medium to obtain a record.

摘要翻译： 在包括静电转印工艺的电子照相方法中，在用感光体和光敏元件的表面形成的静电潜像已经用调色剂显影之后，光导和感光部件的表面和调色剂图像以相同的极性被充电 作为静电潜像，然后将调色剂图像静电转印到记录介质上以获得记录。

公开(公告)号：US4208985A

公开(公告)日：1980-06-24

申请号：US957096

申请日：1978-11-03

申请人： Masayasu Anzai ,  Isamu Terashima

发明人： Masayasu Anzai ,  Isamu Terashima

IPC分类号： G03G15/08 ,  B05C11/00

CPC分类号： G03G15/0853 ,  G03G15/0887

摘要： Apparatus for monitoring the concentration of toner in a mass of developer mix including the toner and carrier particles, having a sampling cylinder inside which the developer mix flows. An accumulating cylinder is disposed over the sampling cylinder. At the upper end part of the accumulating cylinder, a guide plate is disposed by which the developer mix is supplied to the accumulating cylinder. At the lower end part of the accumulating cylinder, a developer mix supplying roll is disposed by which the developer mix at a fixed flow rate is supplied to the upper end opening of the sampling cylinder. On the other hand, at the lower end opening of the sampling cylinder, there is disposed a magnet roll by which the developer mix at a fixed flow rate is discharged from inside the sampling cylinder. The flow rate of the developer mix to be supplied to the sampling cylinder is set to be greater than the flow rate of the developer mix to be discharged, so that part of the developer mix supplied towards the sampling cylinder overflows from the upper edge of the sampling cylinder. Therefore, the developer mix inside the sampling cylinder flows in a stable state. A detecting coil is disposed on the outer periphery of the sampling cylinder, and detects the toner concentration of the developer mix in the form of an inductance.

摘要翻译： 用于监测大量显影剂混合物中的调色剂浓度的装置，包括调色剂和载体颗粒，其具有显影剂混合物所在的取样筒。 在采样气缸上方设置有一个积存的气缸。 在积聚气缸的上端部设置有引导板，通过该引导板将显影剂混合物供给到积聚气缸。 在积聚筒的下端部设置有显影剂混合供给辊，通过该显影剂混合供给辊将显影剂以固定流量混合，供给到取样筒的上端开口。 另一方面，在取样筒的下端开口处设置有磁性辊，通过该磁辊，显影剂以固定流量混合，从采样气缸内部排出。 被提供给采样气瓶的显影剂混合物的流量被设定为大于待排出的显影剂混合物的流速，使得朝向采样气瓶供应的部分显影剂混合物从 取样圆筒。 因此，采样气瓶内的显影剂混合液体处于稳定状态。 检测线圈设置在采样气缸的外周，并以电感的形式检测显影剂混合物的调色剂浓度。