公开(公告)号：US07295795B2

公开(公告)日：2007-11-13

申请号：US11237773

申请日：2005-09-29

申请人： Koji Suzuki ,  Hideaki Mochimaru ,  Naoki Iwata ,  Kunihiko Tomita ,  Hiroshi Yokoyama ,  Norimasa Sohmiya ,  Shigeru Watanabe ,  Chiemi Kaneko ,  Yasukuni Omata ,  Hisao Murayama

发明人： Koji Suzuki ,  Hideaki Mochimaru ,  Naoki Iwata ,  Kunihiko Tomita ,  Hiroshi Yokoyama ,  Norimasa Sohmiya ,  Shigeru Watanabe ,  Chiemi Kaneko ,  Yasukuni Omata ,  Hisao Murayama

IPC分类号： G03G15/08

CPC分类号： G03G15/167 ,  G03G15/24 ,  G03G2215/0119 ,  G03G2215/1661 ,  G03G2215/2083

摘要： An image forming method begins with a first image transfer step for thermally transferring a first toner image from a first image carrier to a second image carrier contacting it. Subsequently, in a second image transfer step, the first toner image carried on the second image carrier and a second toner image newly formed on the first image carrier are thermally transferred to opposite sides of a recording medium substantially at the same time. Higher image transfer temperature is assigned to the second image transfer step than to the first image transfer step. An impurity collecting device is associated with a pair of registration rollers which stop the recording medium for a moment to thereby synchronize the recording medium to the toner image.

摘要翻译： 图像形成方法从第一图像转印步骤开始，用于将第一调色剂图像从第一图像载体热转印到与其接触的第二图像载体。 随后，在第二图像转印步骤中，基本上同时将携带在第二图像载体上的第一调色剂图像和新形成在第一图像载体上的第二调色剂图像热传递到记录介质的相对侧。 与第一图像转印步骤相比，将更高的图像转印温度分配给第二图像转印步骤。 一种杂质收集装置与一对定位辊相关联，该对准辊使记录介质停止片刻，从而使记录介质与调色剂图像同步。

公开(公告)号：US20060024095A1

公开(公告)日：2006-02-02

申请号：US11237773

申请日：2005-09-29

申请人： Koji Suzuki ,  Hideaki Mochimaru ,  Naoki Iwata ,  Kunihiko Tomita ,  Hiroshi Yokoyama ,  Norimasa Sohmiya ,  Shigeru Watanabe ,  Chiemi Kaneko ,  Yasukuni Omata ,  Hisao Murayama

发明人： Koji Suzuki ,  Hideaki Mochimaru ,  Naoki Iwata ,  Kunihiko Tomita ,  Hiroshi Yokoyama ,  Norimasa Sohmiya ,  Shigeru Watanabe ,  Chiemi Kaneko ,  Yasukuni Omata ,  Hisao Murayama

IPC分类号： G03G15/16

CPC分类号： G03G15/167 ,  G03G15/24 ,  G03G2215/0119 ,  G03G2215/1661 ,  G03G2215/2083

摘要： An image forming method of the present invention begins with a first image transfer step for thermally transferring a first toner image from a first image carrier to a second image carrier contacting it. Subsequently, in a second image transfer step, the first toner image carried on the second image carrier and a second toner image newly formed on the first image carrier are thermally transferred to opposite sides of a recording medium substantially at the same time. Higher image transfer temperature is assigned to the second image transfer step than to the first image transfer step.

摘要翻译： 本发明的图像形成方法从用于将第一调色剂图像从第一图像载体热转印到与其接触的第二图像载体的第一图像转印步骤开始。 随后，在第二图像转印步骤中，基本上同时将携带在第二图像载体上的第一调色剂图像和新形成在第一图像载体上的第二调色剂图像热传递到记录介质的相对侧。 与第一图像转印步骤相比，将更高的图像转印温度分配给第二图像转印步骤。

公开(公告)号：US07197269B2

公开(公告)日：2007-03-27

申请号：US10680091

申请日：2003-10-08

申请人： Yasukuni Omata ,  Hideaki Mochimaru ,  Chiemi Kaneko ,  Koji Suzuki ,  Naoki Iwata ,  Kunihiko Tomita ,  Hiroshi Yokoyama ,  Norimasa Sohmiya ,  Shigeru Watanabe ,  Hisao Murayama

发明人： Yasukuni Omata ,  Hideaki Mochimaru ,  Chiemi Kaneko ,  Koji Suzuki ,  Naoki Iwata ,  Kunihiko Tomita ,  Hiroshi Yokoyama ,  Norimasa Sohmiya ,  Shigeru Watanabe ,  Hisao Murayama

IPC分类号： G03G15/20

CPC分类号： G03G15/238 ,  G03G15/162 ,  G03G2215/1623 ,  G03G2215/2083

摘要： An image transferring device of the present invention includes a first and a second intermediate image transfer body whose surfaces endlessly move while forming a nip in contact with each other. When a sheet nipped by the nip is being conveyed toward a side downstream of the nip in the direction in which the above surfaces move, a first toner image transferred from an image carrier to the second intermediate image transfer body via the first intermediate image transfer body beforehand is transferred to one side of the sheet. At the same time, a second toner image transferred from the image carrier to the first image transfer body beforehand is transferred to the other side of the sheet. One of the two intermediate image transfer bodies is less deformable than the other intermediate image transfer body in the direction of thickness.

摘要翻译： 本发明的图像转印装置包括第一和第二中间图像转印体，其表面在形成彼此接触的辊隙的同时不停地移动。 当被夹持的片材沿着上述表面移动的方向朝向辊隙下游的一侧传送时，经由第一中间图像转印体从图像载体转移到第二中间图像转印体的第一调色剂图像 预先转移到纸张的一面。 同时，将从图像载体预先转印到第一图像转印体的第二调色剂图像转印到纸张的另一侧。 两个中间图像转印体之一在厚度方向上比另一个中间图像转印体更不易变形。

公开(公告)号：US07003251B2

公开(公告)日：2006-02-21

申请号：US10424077

申请日：2003-04-28

申请人： Koji Suzuki ,  Hideaki Mochimaru ,  Naoki Iwata ,  Kunihiko Tomita ,  Hiroshi Yokoyama ,  Norimasa Sohmiya ,  Shigeru Watanabe ,  Chiemi Kaneko ,  Yasukuni Omata ,  Hisao Murayama

发明人： Koji Suzuki ,  Hideaki Mochimaru ,  Naoki Iwata ,  Kunihiko Tomita ,  Hiroshi Yokoyama ,  Norimasa Sohmiya ,  Shigeru Watanabe ,  Chiemi Kaneko ,  Yasukuni Omata ,  Hisao Murayama

IPC分类号： G03G15/16

CPC分类号： G03G15/167 ,  G03G15/24 ,  G03G2215/0119 ,  G03G2215/1661 ,  G03G2215/2083

摘要： An image forming method of the present invention begins with a first image transfer step for thermally transferring a first toner image from a first image carrier to a second image carrier contacting it. Subsequently, in a second image transfer step, the first toner image carried on the second image carrier and a second toner image newly formed on the first image carrier are thermally transferred to opposite sides of a recording medium substantially at the same time. Higher image transfer temperature is assigned to the second image transfer step than to the first image transfer step. Additionally, the second image carrier has a greater roughness than the first image carrier.

摘要翻译： 本发明的图像形成方法从用于将第一调色剂图像从第一图像载体热转印到与其接触的第二图像载体的第一图像转印步骤开始。 随后，在第二图像转印步骤中，基本上同时将携带在第二图像载体上的第一调色剂图像和新形成在第一图像载体上的第二调色剂图像热传递到记录介质的相对侧。 与第一图像转印步骤相比，将更高的图像转印温度分配给第二图像转印步骤。 此外，第二图像载体具有比第一图像载体更大的粗糙度。

公开(公告)号：US06983117B2

公开(公告)日：2006-01-03

申请号：US10645614

申请日：2003-08-22

申请人： Norimasa Sohmiya ,  Koji Suzuki ,  Hideaki Mochimaru ,  Naoki Iwata ,  Kunihiko Tomita ,  Hiroshi Yokoyama ,  Shigeru Watanabe ,  Chiemi Kaneko ,  Yasukuni Omata ,  Hisao Murayama

发明人： Norimasa Sohmiya ,  Koji Suzuki ,  Hideaki Mochimaru ,  Naoki Iwata ,  Kunihiko Tomita ,  Hiroshi Yokoyama ,  Shigeru Watanabe ,  Chiemi Kaneko ,  Yasukuni Omata ,  Hisao Murayama

IPC分类号： G03G15/16 ,  G03G15/20

CPC分类号： G03G15/1625 ,  G03G15/232

摘要： An image forming apparatus of the present invention includes a first and a second intermediate image transfer belt contacting each other to form a nip for secondary image transfer. While the nip is heated, a sheet is passed through the nip to thereby transfer toner images respectively formed on the first and second belts to opposite surfaces of the sheet at the same time. The nip is sized such that image transfer and fixation can be effected at temperature higher than the melting point or the softening point of toner by 5° C. to 50° C.

摘要翻译： 本发明的图像形成装置包括第一和第二中间图像转印带，其彼此接触以形成用于二次图像转印的辊隙。 当辊隙被加热时，片材通过辊隙，从而将分别形成在第一和第二带上的调色剂图像同时转印到片材的相对表面。 辊隙的尺寸使得图像转印和固定可以在高于调色剂的熔点或软化点的温度下进行5℃至50℃。

公开(公告)号：US06898398B2

公开(公告)日：2005-05-24

申请号：US10434079

申请日：2003-05-09

申请人： Yasukuni Omata ,  Hideaki Mochimaru ,  Hisao Murayama

发明人： Yasukuni Omata ,  Hideaki Mochimaru ,  Hisao Murayama

IPC分类号： G03G21/14 ,  G03G15/00 ,  G03G15/01 ,  G03G15/16 ,  G03G15/23

CPC分类号： G03G15/231 ,  G03G15/167 ,  G03G2215/00586 ,  G03G2215/00599

摘要： A printer includes a transfer belt unit and an intermediate transfer belt. Two papers are fed into the printer one after another at a desired interval. 2nd and 4th images are transferred first onto the transfer belt unit and then onto back surfaces of respective papers. 1st and 3rd images are transferred by the intermediate transfer belt directly onto front surfaces of the respective papers. The 2nd and 4th images are formed on the transfer belt unit in such a manner that a distance between the two images on the transfer belt unit is set longer than the interval between the two papers.

摘要翻译： 打印机包括转印带单元和中间转印带。 两张纸以期望的间隔一个接一个地送入打印机。 第二和第四图像首先转印到转印带单元上，然后转印到各个纸张的背面上。 第一和第三图像由中间转印带直接转印到相应纸张的表面上。 第二和第四图像形成在转印带单元上，使得转印带单元上的两个图像之间的距离被设定为长于两张纸之间的间隔。

公开(公告)号：US5869213A

公开(公告)日：1999-02-09

申请号：US210445

申请日：1994-03-21

申请人： Naoki Iwata ,  Tomotoshi Nakahara ,  Hisao Murayama ,  Ichiro Komuro

发明人： Naoki Iwata ,  Tomotoshi Nakahara ,  Hisao Murayama ,  Ichiro Komuro

IPC分类号： G03G9/097 ,  G03G13/01

CPC分类号： G03G9/09725 ,  G03G13/013

摘要： A multicolor image forming method in which a plurality of latent images are sequentially formed and developed on an image carrier on top of each other on the image carrier. The second and any successive color toners are developed in a non-contact manner. A developed image on a photoconductive element is prevented from being contaminated by subsequent developing stages and toner on the photoconductive element is prevented from contaminating the developer in the subsequent developing stages by reducing the amount of toner which improperly flies between the photoconductive element and the developing stages. Such a prevention of the flight of toner can be accomplished by keeping the potential of the toner on the photoconductive element within a predetermined threshold of the voltage of the toner in the subsequent developing stages. Also, properties of the various toners can reduce the improper flight of the toner such as by controlling the relative amounts of hydrophobic SiO.sub.2 within the toners, controlling the average volume particle size of the toners, controlling the average volume particle size and the average number particle size, and controlling the voltage difference between the toner on the photoconductive element and the toner in the subsequent developing stage(s).

摘要翻译： 一种多色图像形成方法，其中在图像载体上在多个潜像依次形成并显影在图像载体上。 第二种和任何连续的彩色调色剂以非接触的方式开发。 防止光电导元件上显影的图像被后续显影阶段污染，并且防止光电导元件上的调色剂通过减少在光电导元件和显影级之间不正确地飞行的调色剂的量而在后续显影阶段污染显影剂 。 通过将调色剂在光电导元件上的电位保持在随后显影阶段的调色剂电压的预定阈值内，可以实现这种防止调色剂飞行的情况。 此外，各种调色剂的性质可以通过控制调色剂中的疏水SiO 2的相对量来控制调色剂的平均体积粒径，控制平均体积粒径和平均粒子数 并且控制感光元件上的调色剂与后续显影阶段中的调色剂之间的电压差。

公开(公告)号：US5541029A

公开(公告)日：1996-07-30

申请号：US302466

申请日：1994-09-12

申请人： Naoki Iwata ,  Tomotoshi Nakahara ,  Hisao Murayama ,  Ichiro Komuro

发明人： Naoki Iwata ,  Tomotoshi Nakahara ,  Hisao Murayama ,  Ichiro Komuro

IPC分类号： G03G9/097 ,  G03G13/01

CPC分类号： G03G9/09725 ,  G03G13/013

摘要： A multicolor image forming method of the kind sequentially developing a plurality of latent images formed on an image carrier by toners of respective colors and transferring the resulting toner images to a recording medium at the same time. Development in the second color and successive colors is implemented as noncontact type development using a thin layer of nonmagnetic toner. This toner layer satisfies a condition of dt/.epsilon.t

摘要翻译： 一种多色图像形成方法，其通过各种颜色的调色剂顺序显影形成在图像载体上的多个潜像，并将所得到的调色剂图像同时转印到记录介质上。 第二种颜色和连续颜色的发展被实现为使用非磁性调色剂的薄层的非接触型显影。 该调色剂层满足dt /εt<590（μm）2的条件，其中dt和εt分别是该层的厚度和平均体积电感率。 用于第二颜色和连续颜色显影的调色剂通过聚合产生，并且具有10μm或更小的平均体积粒径。 第一种颜色的显影通过具有相对较大的粒度分布的调色剂来实现，该调色剂不包括具有尖锐的电荷量分布的较大颗粒，并且不产生低电荷的颗粒。 用于第一种颜色显影的调色剂具有比用于第二种和连续颜色显影的调色剂更小的平均粒度。

公开(公告)号：US5737680A

公开(公告)日：1998-04-07

申请号：US746985

申请日：1996-11-19

申请人： Hiromitsu Takagaki ,  Shinji Kato ,  Hisao Murayama ,  Shigeru Watanabe ,  Mayumi Yoshida ,  Shunji Kato

发明人： Hiromitsu Takagaki ,  Shinji Kato ,  Hisao Murayama ,  Shigeru Watanabe ,  Mayumi Yoshida ,  Shunji Kato

IPC分类号： G03G15/08 ,  G03G21/00 ,  G03G21/10

CPC分类号： G03G21/105 ,  G03G15/0877 ,  G03G15/0896

摘要： An image forming apparatus capable of collecting a toner remaining on an image carrier after image transfer and conveying the collected toner to a developing unit to reuse it. A toner supplement roller and a toner conveyor are so controlled as to maintain the supplement of a fresh toner from a hopper to the developing unit and the supplement of the collected toner from the toner conveyor to the developing unit in a ratio lying in a predetermined range.

公开(公告)号：US5604575A

公开(公告)日：1997-02-18

申请号：US441612

申请日：1995-05-15

申请人： Hiromitsu Takagaki ,  Shinji Kato ,  Hisao Murayama ,  Shigeru Watanabe ,  Mayumi Yoshida ,  Shunji Kato

发明人： Hiromitsu Takagaki ,  Shinji Kato ,  Hisao Murayama ,  Shigeru Watanabe ,  Mayumi Yoshida ,  Shunji Kato

IPC分类号： G03G15/08 ,  G03G21/00 ,  G03G21/10

CPC分类号： G03G21/105 ,  G03G15/0877 ,  G03G15/0896

摘要： An image forming apparatus capable of collecting a toner remaining on an image carrier after image transfer and conveying the collected toner to a developing unit to reuse it. A toner supplement roller and a toner conveyor are so controlled as to maintain the supplement of a fresh toner from a hopper to the developing unit and the supplement of the collected toner from the toner conveyor to the developing unit in a ratio lying in a predetermined range.

摘要翻译： 图像形成装置，其能够在图像转印之后收集残留在图像载体上的调色剂，并将收集的调色剂输送到显影单元以重新使用。 调色剂补充辊和调色剂输送机受到如此控制，以将新鲜调色剂从料斗的补充维持到显影单元，并将所收集的调色剂的补充物从调色剂输送器到显影单元的比例保持在预定范围内 。