公开(公告)号：US5732310A

公开(公告)日：1998-03-24

申请号：US633470

申请日：1996-04-17

申请人： Koichi Hiroshima ,  Katsuhiko Nishimura ,  Shinichi Tsukida ,  Toru Kosaka ,  Yasuo Yoda

发明人： Koichi Hiroshima ,  Katsuhiko Nishimura ,  Shinichi Tsukida ,  Toru Kosaka ,  Yasuo Yoda

IPC分类号： G03G15/16

CPC分类号： G03G15/161 ,  G03G15/1605 ,  G03G2215/1652

摘要： In an image forming apparatus a toner image is transferred onto a transfer material using an intermediate transfer member. The image forming apparatus has an image bearing member; a toner image forming unit for forming a toner image on the image bearing member; an intermediate transfer member movable along an endless path in contact with the image bearing member; a bias voltage applicator for applying a bias voltage to transfer the toner image from the image bearing member onto the intermediate transfer member at a first transfer position of the intermediate transfer member; and an image transfer device for transferring the toner image from the intermediate transfer member onto the transfer material at a second transfer position of the intermediate transfer member, a residual toner charge for charging residual toner remaining on the intermediate transfer member after image transfer therefrom, to a polarity opposite from a regular polarity of the toner to permit the residual toner to transfer back, simultaneously with a next image transfer at the first transfer position, to the image bearing member when the residual toner passes through the first transfer position.

摘要翻译： 在图像形成装置中，使用中间转印部件将调色剂图像转印到转印材料上。 图像形成装置具有图像承载部件; 调色剂图像形成单元，用于在图像承载部件上形成调色剂图像; 中间转印部件，其沿着与所述图像承载部件接触的环状路径移动; 偏置电压施加器，用于在中间转印部件的第一转印位置处施加偏置电压以将调色剂图像从图像承载部件转印到中间转印部件上; 以及图像转印装置，用于在中间转印部件的第二转印位置处将调色剂图像从中间转印部件转印到转印材料上，剩余调色剂带电量用于在残留在中间转印部件上的剩余调色剂进行图像转印之后， 与调色剂的正常极性相反的极性，以便当剩余调色剂通过第一转印位置时，允许残留调色剂与第一转印位置处的下一次图像转印同时转印回图像承载部件。

公开(公告)号：US5809373A

公开(公告)日：1998-09-15

申请号：US651858

申请日：1996-05-21

申请人： Yasuo Yoda ,  Katsuhiko Nishimura ,  Koichi Hiroshima ,  Shinichi Tsukida ,  Toru Kosaka

发明人： Yasuo Yoda ,  Katsuhiko Nishimura ,  Koichi Hiroshima ,  Shinichi Tsukida ,  Toru Kosaka

IPC分类号： G03G15/16

CPC分类号： G03G15/161 ,  G03G15/1605 ,  G03G2215/1652

摘要： An image forming apparatus has an image bearing member; toner image forming unit for forming a toner image with non-magnetic toner on an image bearing member; intermediate transfer member contactable to the image bearing member and movable along an endless path; primary transfer unit for effecting primary image transfer of the toner image formed on the image bearing member onto the intermediate transfer member at a first transfer position; secondary transfer unit for effecting a secondary image transfer of the toner image from the intermediate transfer member on the transfer material at a second transfer position; and a residual toner charger for charging the residual toner remaining on the intermediate transfer member to a polarity opposite from a regular polarity thereof. After the secondary image transfer, the residual toner remaining on the intermediate transfer member is charged by the residual toner charger to the opposite polarity, and is then passed through the first transfer position during the primary image transfer, so that the residual toner is transferred back to the image bearing member substantially simultaneously with a next primary image transfer, thus removing the residual toner from the intermediate transfer member.

摘要翻译： 图像形成装置具有图像承载部件; 调色剂图像形成单元，用于在图像承载部件上形成具有非磁性调色剂的调色剂图像; 中间转印部件，其能够与图像承载部件接触并沿着环形路径移动; 一次转印单元，用于在第一转印位置处将形成在图像承载部件上的调色剂图像初次转印到中间转印部件上; 二次转印单元，用于在第二转印位置进行从转印材料上的中间转印部件的调色剂图像的二次图像转印; 以及剩余调色剂充电器，用于将残留在中间转印部件上的剩余调色剂充电到与其正常极性相反的极性。 在二次图像转印之后，残留在中间转印部件上的剩余调色剂由剩余调色剂充电器充电至相反极性，然后在主图像转印期间通过第一转印位置，从而将残留调色剂转印回 在下一次图像转印的同时基本上与图像承载部件相接触，从而从中间转印部件去除残留的调色剂。

公开(公告)号：US5701568A

公开(公告)日：1997-12-23

申请号：US705822

申请日：1996-08-30

申请人： Koichi Hiroshima ,  Katsuhiko Nishimura ,  Toru Kosaka ,  Yasuo Yoda

发明人： Koichi Hiroshima ,  Katsuhiko Nishimura ,  Toru Kosaka ,  Yasuo Yoda

IPC分类号： G03G15/01 ,  G03G15/16

CPC分类号： G03G15/0131 ,  G03G15/162 ,  G03G2215/0177

摘要： An image forming apparatus includes a first image-bearing member such as an electrophotographic photosensitive member, an intermediate transfer member for receiving a transferable image formed on the first image-bearing member, and contact transfer device for transferring the transferable image from the intermediate transfer member to a transfer material. The first image-bearing member has a surface layer having a dielectric constant .epsilon..sub.d, the intermediate transfer member has a surface layer having a dielectric constant .epsilon..sub.ITD and the contact transfer device has a surface layer having a dielectric constant .epsilon..sub.tr satisfying a relationship of; .epsilon..sub.d .ltoreq..epsilon..sub.ITD .ltoreq..epsilon..sub.tr. The intermediate transfer member exhibits a volume resistivity of 10.sup.6 -10.sup.10 ohm.cm (at an applied voltage of 1 kV), and the contact transfer device exhibits a volume resistivity of 10.sup.8 -10.sup.15 ohm.cm (at an applied voltage of 1 kV). As a result, it is possible to obtain high transfer efficiencies in both primary and secondary transfer over a wide transfer bias application range.

摘要翻译： 图像形成装置包括第一图像承载构件，例如电子照相感光构件，用于接收形成在第一图像承载构件上的可转印图像的中间转印构件和用于从中间转印构件转印可转印图像的接触转印装置 转移材料。 第一图像承载构件具有介电常数εd的表面层，中间转印构件具有介电常数εITD的表面层，并且接触转移装置具有满足关系的介电常数εtr的表面层 ; epsilon d = 中间转印部件的体积电阻率为106-1010欧姆·厘米（施加电压为1千伏），接触转移装置的体积电阻率为108-1015欧姆·厘米（施加电压为1千伏） 。 结果，可以在宽的转印偏压施加范围内在一次和二次转印中获得高转印效率。

公开(公告)号：US05999763A

公开(公告)日：1999-12-07

申请号：US082917

申请日：1998-05-21

申请人： Koichi Hiroshima ,  Katsuhiko Nishimura

发明人： Koichi Hiroshima ,  Katsuhiko Nishimura

IPC分类号： G03G15/01 ,  G03G15/16 ,  G03G15/00

CPC分类号： G03G15/161 ,  G03G2215/0177 ,  G03G2215/1657

摘要： The present invention provides an image forming apparatus which includes a movable image bearing member for bearing a toner image, a movable intermediate transfer member to which the toner image on the image bearing member is electrostatically transferred at a first transfer position, and a charger for charging residual toner remaining on the intermediate transfer member after the toner image on the intermediate transfer member has been electrostatically transferred onto a transfer material at a second transfer position with polarity opposite to charging polarity of the normal toner on the image bearing member. An electric field is formed so that the residual toner charged by the charger from the intermediate transfer member onto the image bearing member and a transfer of a next toner image from the image bearing member onto the intermediate transfer member are simultaneously performed at the first transfer position. Also included is a controller for controlling so that a relative position of a first toner image transferred to a first transfer material from the intermediate transfer member with respect to the intermediate transfer member and a relative position of a second toner image transferred to a second transfer material from the intermediate transfer member with respect to the intermediate transfer member are differentiated.

摘要翻译： 本发明提供了一种图像形成装置，其包括用于承载调色剂图像的可动图像承载部件，可动中间转印部件，图像承载部件上的调色剂图像在第一转印位置被静电转印到该可移动中间转印部件，以及充电器 在中间转印部件上的调色剂图像已经在与图像承载部件上的正常调色剂的充电极性极性相反的第二转印位置的转印材料上静电转印到中间转印部件上残留的残留调色剂。 形成电场，使得由充电器从中间转印部件充电到图像承载部件上的残留调色剂和将下一个调色剂图像从图像承载部件转印到中间转印部件上同时在第一转印位置 。 还包括一个控制器，用于控制使得相对于中间转印部件转印到第一转印材料的第一转印材料的相对位置和转印到第二转印材料上的第二调色剂图像的相对位置 从中间转印部件相对于中间转印部件是不同的。

公开(公告)号：US6131010A

公开(公告)日：2000-10-10

申请号：US971683

申请日：1997-11-17

申请人： Takao Kume ,  Norio Hashimoto ,  Katsuhiko Nishimura ,  Koichi Hiroshima ,  Tooru Saitou ,  Katsunori Takeuchi ,  Yozo Hotta ,  Masahiro Suzuki

发明人： Takao Kume ,  Norio Hashimoto ,  Katsuhiko Nishimura ,  Koichi Hiroshima ,  Tooru Saitou ,  Katsunori Takeuchi ,  Yozo Hotta ,  Masahiro Suzuki

IPC分类号： G03G15/20

CPC分类号： G03G15/2053

摘要： A fixing apparatus for use in an image forming apparatus such as a copying apparatus or a laser beam printer is disclosed. The fixing apparatus has a heater, a rotatable member having the heater therein, and a pressing member forming a nip by coming into contact with the rotatable member. The rotatable member is provided with a core and an elastic layer formed on the core, and the elastic layer has a JIS-A Standard rubber hardness not more than 5.degree..

摘要翻译： 公开了一种用于诸如复印设备或激光束打印机的图像形成设备中的定影设备。 定影装置具有加热器，其中具有加热器的可旋转构件和通过与可旋转构件接触而形成压区的按压构件。 可旋转构件设置有芯和形成在芯上的弹性层，弹性层的JIS-A标准橡胶硬度不大于5°。

公开(公告)号：US5600431A

公开(公告)日：1997-02-04

申请号：US348072

申请日：1994-11-23

申请人： Masami Takeda ,  Kimio Nakahata ,  Masuo Yamazaki ,  Katsuhiko Nishimura ,  Hiromichi Yamada ,  Tatsuya Nakamura ,  Tohru Saitou ,  Tohru Kosaka ,  Takashi Shibuya ,  Yasuo Yoda ,  Masahide Hirai

发明人： Masami Takeda ,  Kimio Nakahata ,  Masuo Yamazaki ,  Katsuhiko Nishimura ,  Hiromichi Yamada ,  Tatsuya Nakamura ,  Tohru Saitou ,  Tohru Kosaka ,  Takashi Shibuya ,  Yasuo Yoda ,  Masahide Hirai

IPC分类号： G03G15/09 ,  G03G9/08 ,  G03G9/087 ,  G03G9/097 ,  G03G15/01 ,  G03G15/08

CPC分类号： G03G15/0126 ,  G03G9/0827 ,  G03G9/08782 ,  G03G9/09733

摘要： This invention relates to a color image forming apparatus for forming a color image with dry developer, capable of preventing deterioration of image quality, resulting from contamination of optical components by the non-magnetic developer scattered from the developing unit. For this purpose there are provided, along the moving direction of an image bearing member effecting endless movement, charging means, optical means, first developing means utilizing developer containing a magnetic component, second developing means utilizing non-magnetic developer of a color different from that of the developer of the first developing means, and transfer means maintained in contact with or close to the image bearing member for transferring a developed image from the image bearing member to a recording material such as paper. A space containing the second developing means is enclosed by the shape of the first developing means, transfer means and image bearing member.

摘要翻译： 本发明涉及一种用干式显影剂形成彩色图像的彩色图像形成装置，其能够防止由从显影单元散射的非磁性显影剂的光学部件的污染导致的图像质量的劣化。 为此，沿着图像承载部件的运动方向实现无限循环，充电装置，光学装置，利用含有磁性部件的显影剂的第一显影装置，利用不同于其的颜色的非磁性显影剂的第二显影装置 第一显影装置的显影剂和与图像承载部件接触或接近图像承载部件的转印装置，用于将显影图像从图像承载部件转印到诸如纸张的记录材料上。 包含第二显影装置的空间被第一显影装置，转印装置和图像承载部件的形状包围。

公开(公告)号：US6047149A

公开(公告)日：2000-04-04

申请号：US348221

申请日：1994-11-28

申请人： Katsuhiko Nishimura ,  Kimio Nakahata ,  Masuo Yamazaki ,  Masami Takeda ,  Hiromichi Yamada ,  Tatsuya Nakamura ,  Tohru Saitou ,  Tohru Kosaka ,  Takashi Shibuya ,  Yasuo Yoda ,  Masahide Hirai

发明人： Katsuhiko Nishimura ,  Kimio Nakahata ,  Masuo Yamazaki ,  Masami Takeda ,  Hiromichi Yamada ,  Tatsuya Nakamura ,  Tohru Saitou ,  Tohru Kosaka ,  Takashi Shibuya ,  Yasuo Yoda ,  Masahide Hirai

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

CPC分类号： G03G15/0126 ,  G03G2215/0174

摘要： An image forming apparatus including a rotatable developing member having a plurality of developing devices for developing an image bearing member at a first developing station, and a second single developing device arranged upstream of the rotatable developing member for developing the image bearing member exclusively at a second developing station different from the first developing station. The second developing device has a cover portion covering the rotatable developing member, and a portion of the cover portion is disposed at a position spaced apart from a rotation axis of the rotatable developing member by a predetermined length in a horizontal direction away from the image bearing member. The rotatable developing member rotates in an opposite direction with respect to the direction of rotation of the image bearing member to prevent toner from scattering toward the optical system.

摘要翻译： 一种图像形成装置，包括具有多个用于在第一显影站显影图像承载部件的显影装置的可旋转显影部件和设置在可转动显影部件上游的第二单一显影装置，用于仅在第二显影步骤 发展站不同于第一个发展站。 第二显影装置具有覆盖可旋转显影构件的盖部分，并且盖部分的一部分设置在远离可转动显影构件的旋转轴线的距离图像承载的水平方向上预定长度的位置 会员。 可旋转的显影构件相对于图像承载构件的旋转方向沿相反的方向旋转，以防止调色剂向光学系统散射。

公开(公告)号：US20110177450A1

公开(公告)日：2011-07-21

申请号：US13010729

申请日：2011-01-20

申请人： Eiji Uekawa ,  Masuo Yamazaki ,  Koichi Terauchi ,  Katsuhiko Nishimura ,  Yukihide Ushio ,  Ken-ichi Matsumoto

发明人： Eiji Uekawa ,  Masuo Yamazaki ,  Koichi Terauchi ,  Katsuhiko Nishimura ,  Yukihide Ushio ,  Ken-ichi Matsumoto

IPC分类号： G03G13/20

CPC分类号： G03G15/20 ,  G03G11/00

摘要： A toner image fixing method reduces energy consumed in a fixing step in an electrophotographic image forming apparatus. A photopolymerization composition is coated on an unfixed toner image formed on a recording medium. Then, the photopolymerization composition is irradiated with light, which does not have an emission wavelength band in a far infrared range and which has a maximum emission wavelength of 360 nm or longer to 420 nm or shorter, by using an LED, whereby the photopolymerization composition is cured and the unfixed toner image is fixed to the recording medium.

摘要翻译： 调色剂图像定影方法减少电子照相图像形成装置中的定影步骤中的能量消耗。 将光聚合组合物涂布在形成在记录介质上的未定影调色剂图像上。 然后，通过使用LED对光聚合组合物照射不具有远红外范围的发光波长带，并且具有360nm以上至420nm以下的最大发光波长的光，由此光聚合组合物 固化并将未定影的调色剂图像固定在记录介质上。

公开(公告)号：US06527484B2

公开(公告)日：2003-03-04

申请号：US09901673

申请日：2001-07-11

申请人： Kazuyuki Nakamura ,  Yasushi Nogawa ,  Hidetaka Nakae ,  Katsuhiko Nishimura

发明人： Kazuyuki Nakamura ,  Yasushi Nogawa ,  Hidetaka Nakae ,  Katsuhiko Nishimura

IPC分类号： B23P1542

CPC分类号： B23D43/02 ,  B23F21/26 ,  Y10T407/16 ,  Y10T407/1642 ,  Y10T407/1657 ,  Y10T407/1671 ,  Y10T407/1685

摘要： A helical gear tooth broach having an elongate body having a series of axially aligned and spaced teeth disposed thereon. The direction of tooth spaces or traces of the teeth in a longitudinally extending helical alignment and the direction of the gullets of the teeth in a side by side circumferentially extending helical arrangement are both oriented at a right-upward or a left-upward helix angle in common with each other.

摘要翻译： 一种斜齿轮齿拉刀，其具有设置在其上的一系列轴向对准和间隔开的齿的细长主体。 在纵向延伸的螺旋对准中的牙齿空间或牙齿的方向以及沿着圆周方向延伸的螺旋排列的齿的齿槽的方向均以右上或左向上的螺旋角定向 相互共同。

公开(公告)号：US6111664A

公开(公告)日：2000-08-29

申请号：US989683

申请日：1997-12-12

申请人： Akio Aoki ,  Takao Aoki ,  Kaoru Seto ,  Seiji Sagara ,  Satoshi Shimizu ,  Katsuhiko Nishimura ,  Kazuro Yamada

发明人： Akio Aoki ,  Takao Aoki ,  Kaoru Seto ,  Seiji Sagara ,  Satoshi Shimizu ,  Katsuhiko Nishimura ,  Kazuro Yamada

IPC分类号： G03G21/00 ,  G03G15/01 ,  G03G15/06 ,  G06T5/00 ,  H04N1/407 ,  H04N1/46 ,  H04N1/60 ,  H04N1/40

CPC分类号： H04N1/6033 ,  H04N1/4078

摘要： An image forming apparatus and method in which a controller is capable of executing image processing of its own are disclosed. The controller has an RF unit for processing image information, a halftone image processor, a density corrector and a patch generator. The engine includes a modulator corresponding to the RF unit, a halftone image processor different from that of the controller, a density controller, modulator and patch generator corresponding to the halftone processor of the engine, a sensor for sensing the density of formed patches, and a control unit for controlling the density of an image on the basis of a signal from the sensor. The engine sends the controller a signal relating to density control.

摘要翻译： 公开了一种其中控制器能够执行其自身的图像处理的图像形成装置和方法。 控制器具有用于处理图像信息的RF单元，半色调图像处理器，浓度校正器和贴片发生器。 发动机包括对应于RF单元的调制器，与控制器不同的半色调图像处理器，对应于发动机的半色调处理器​​的浓度控制器，调制器和补丁发生器，用于感测形成的补丁的密度的传感器，以及 控制单元，用于基于来自传感器的信号来控制图像的浓度。 发动机向控制器发送与密度控制有关的信号。