公开(公告)号：US5610701A

公开(公告)日：1997-03-11

申请号：US276704

申请日：1994-07-18

申请人： Hiroshi Terada ,  Hajime Yamamoto ,  Masahiko Nakamura

发明人： Hiroshi Terada ,  Hajime Yamamoto ,  Masahiko Nakamura

IPC分类号： G03G15/01

CPC分类号： G03G15/011 ,  G03G15/0121 ,  G03G15/0194 ,  G03G2215/0116

摘要： A color electrophotographic apparatus for forming color images has advantages of compact and simple construction, easy positioning of an exposure position and easy inspection. The apparatus includes a plurality of rotatable image forming units corresponding to the number of colors, each of the units including a pivotable photosensitive member on which a toner image is formed and a developing device containing a color toner. The apparatus further includes an exposure device for exposing a toner image by emitting a signal light from outside of the image forming units and a mirror for reflecting the signal light to an exposure position, the mirror being placed in the neighbor of a rotation axis.

摘要翻译： 用于形成彩色图像的彩色电子照相设备具有结构紧凑和简单，易于定位曝光位置和容易检查的优点。 该装置包括对应于颜色数量的多个可旋转图像形成单元，每个单元包括其上形成调色剂图像的可枢转感光构件和包含彩色调色剂的显影装置。 该装置还包括曝光装置，用于通过从图像形成单元的外部发射信号光而使调色剂图像曝光，以及用于将信号光反射到曝光位置的反射镜，该反射镜被放置在旋转轴的相邻位置。

公开(公告)号：US5612771A

公开(公告)日：1997-03-18

申请号：US285741

申请日：1994-08-04

申请人： Hajime Yamamoto ,  Hiroshi Terada ,  Masahiko Nakamura

发明人： Hajime Yamamoto ,  Hiroshi Terada ,  Masahiko Nakamura

IPC分类号： G03G15/01 ,  G03G15/16 ,  G03G15/14

CPC分类号： G03G15/161 ,  G03G15/0121 ,  G03G15/0194 ,  G03G2215/0112 ,  G03G2215/0116

摘要： A multi-color electrophotographic apparatus is provided which includes a casing having an access cover, an image transfer belt unit for transferring a multi-colored image formed thereon a recording sheet, and an image-forming assembly having a plurality of image-forming units. Each image-forming unit includes a photoconductor and a developer storing therein toner of a single different color for forming a different color toner image on each photoconductor. The image-forming assembly is arranged to be movable between operative and inoperative positions. The operative position is such that each image-forming unit lies at an image-forming station with the photoconductor thereof in engagement with an image transfer belt of the image transfer belt unit to transfer the toner image formed thereon in registration with one another to the image transfer belt for forming the multi-colored image. The inoperative position is such that all the photoconductors of the image-forming assembly are out of engagement with the image transfer belt for allowing an apparatus operator to unload the image transfer belt unit from the casing through the access cover without damaging each photoconductor due to rubbing with the image transfer belt.

摘要翻译： 提供一种多色电子照相设备，其包括具有检修盖的外壳，用于传送形成在其上的多色图像的图像转印带单元和具有多个图像形成单元的图像形成组件。 每个图像形成单元包括光电导体和存储其中单个不同颜色的调色剂的显影剂，以在每个感光体上形成不同颜色的调色剂图像。 图像形成组件布置成可在操作位置和不工作位置之间移动。 操作位置使得每个图像形成单元位于图像形成站，其光电导体与图像转印带单元的图像转印带接合，以将形成在其上的调色剂图像彼此对准地转印到图像 用于形成多色图像的转印带。 不工作的位置使得图像形成组件的所有感光体都不与图像转印带接合，从而允许设备操作者通过接近盖从壳体卸载图像转印带单元，而不会由于摩擦而损坏每个感光体 与图像转印带。

公开(公告)号：US5587783A

公开(公告)日：1996-12-24

申请号：US304767

申请日：1994-09-12

申请人： Masahiko Nakamura ,  Hajime Yamamoto ,  Hiroshi Terada

发明人： Masahiko Nakamura ,  Hajime Yamamoto ,  Hiroshi Terada

IPC分类号： G03G15/01 ,  G03G15/08

CPC分类号： G03G15/0105 ,  G03G15/0121 ,  G03G15/0126 ,  G03G15/0131 ,  G03G15/0194 ,  G03G15/0853 ,  G03G15/0855 ,  G03G15/0856 ,  G03G15/0877 ,  G03G2215/0116 ,  G03G2215/0193 ,  G03G2215/0894

摘要： A color electrophotographic apparatus using a plurality of image forming units. The entire image forming unit group moves by rotation, and a toner image is transferred on an intermediate transfer belt at an image forming position. The intermediate transfer belt is variable in speed, and while the image forming unit group is moving, it is stopped or runs at low speed. The hopper in the image forming unit is divided into two sections. The toner is supplied the image forming position, and when the toner remainder sensor detects no remaining toner, the image forming unit group rotates by one revolution or more, and then the toner remainder is detected again to judge presence or absence of toner remainder. At this time, the toner in the toner hopper is agitated by the agitating member and the shape of the inner wall. After rotary move of the image forming unit group, each image forming unit is initialized sequentially. The side walls of the signal light optical path are composed of image forming units, and the color of the side walls is black. The gap between two adjacent signal forming units is 20 mm or less. One erase lamp of the photosensitive member is provided near the image forming position. During rotary motion of the image forming unit group, it is controlled so as not to disturb the toner image on the intermediate transfer belt.

摘要翻译： 一种使用多个图像形成单元的彩色电子照相设备。 整个图像形成单元组通过旋转移动，并且调色剂图像在成像位置的中间转印带上转印。 中间转印带速度可变，成像单元组移动时，停止或低速运转。 图像形成单元中的料斗被分成两部分。 调色剂供应图像形成位置，当调色剂余量传感器检测到没有剩余的调色剂时，图像形成单元组旋转一圈或更多，然后再次检测调色剂余量以判断是否存在调色剂余量。 此时，调色剂料斗中的调色剂被搅拌部件和内壁的形状搅动。 在图像形成单元组的旋转移动之后，顺序地初始化每个图像形成单元。 信号光路的侧壁由图像形成单元构成，侧壁的颜色为黑色。 两个相邻信号形成单元之间的间隙为20mm以下。 感光构件的一个擦除灯设置在图像形成位置附近。 在图像形成单元组的旋转运动期间，其被控制成不干扰中间转印带上的调色剂图像。

公开(公告)号：US5550619A

公开(公告)日：1996-08-27

申请号：US179590

申请日：1994-01-10

申请人： Hiroshi Komakine ,  Hiroshi Terada ,  Hajime Yamamoto ,  Kazumasa Hayashi ,  Masahiro Aizawa

发明人： Hiroshi Komakine ,  Hiroshi Terada ,  Hajime Yamamoto ,  Kazumasa Hayashi ,  Masahiro Aizawa

IPC分类号： G03G15/09 ,  G03G15/095 ,  G03G13/00

CPC分类号： B82Y15/00 ,  G03G15/0921 ,  G03G15/095 ,  G03G2215/0621 ,  G03G2215/0639

摘要： An electrophotographic apparatus includes a photoconductor drum, also known as an electrostatic latent image holding member, with a magnet placed therein. An electrostatic latent image is formed on the magnetic drum. Then, the drum is brought into contact with a magnetic developer, or toner, in a developer reservoir to have the magnetic developer attached to the photoconductor drum surface by a magnetic force. A removing roller, having an AC voltage applied thereto, is passed in close vicinity of the magnetic drum with the resultant development of images because toner remains at image areas only. In the electrophotographic apparatus, the photoconductor drum, the removing roller or both include two magnetic poles. A device for increasing friction force of the surface of the photoconductor drum, of the removing roller or both may also be provided.

摘要翻译： 电子照相设备包括也称为静电潜像保持构件的感光鼓，其中放置有磁体。 在磁鼓上形成静电潜像。 然后，使鼓与显影剂储存器中的磁性显影剂或调色剂接触，以使磁性显影剂通过磁力附着到感光鼓表面。 具有施加交流电压的去除辊由于调色剂仅留在图像区域而靠近磁鼓而导致图像的显影。 在电子照相设备中，感光鼓，去除辊或两者都包括两个磁极。 还可以提供用于增加感光鼓的表面，除去辊或两者的摩擦力的装置。

公开(公告)号：US5543901A

公开(公告)日：1996-08-06

申请号：US480079

申请日：1995-06-07

申请人： Hajime Yamamoto ,  Hiroshi Terada

发明人： Hajime Yamamoto ,  Hiroshi Terada

IPC分类号： G03G15/00 ,  G03G15/09 ,  G03G15/095 ,  G03G13/00

CPC分类号： B82Y15/00 ,  G03G15/09 ,  G03G15/095 ,  G03G15/751 ,  G03G2215/0621 ,  G03G2215/0639

摘要： An electrophotographic method and an apparatus employed for effecting the method, in which a photoreceptor drum having a fixed magnet member in it is employed. After forming an electrostatic latent image on the surface of the photoreceptor drum, the photoreceptor surface is brought into contact with the magnetic developing material within a developing material hopper so as to attract the developing material onto the surface of the photoreceptor drum by magnetic force. When the photoreceptor surface further passes an electrode roller, the toner remains only at the image portion for development into a visible toner image. As a force for removing the magnetic developing material from the photoreceptor surface, a resultant force of a magnetic force connecting the photoreceptor drum and the electrode roller and an electrostatic force connecting the photoreceptor drum and the electrode roller, is employed. Thus, the present invention provides the novel electrophotographic method and the apparatus for executing the method, which is simple in construction and a compact in size, and capable of providing images with a high resolution.

摘要翻译： 用于实现该方法的电子照相方法和装置，其中使用其中具有固定磁体的感光鼓。 在感光鼓的表面上形成静电潜像之后，感光体表面与显影材料料斗内的磁性显影材料接触，以便通过磁力将显影材料吸引到感光鼓的表面上。 当感光体表面进一步通过电极辊时，调色剂仅保留在图像部分以显影成可见的调色剂图像。 作为用于从感光体表面除去磁性显影材料的力，采用连接感光鼓和电极辊的磁力的合力以及连接感光鼓和电极辊的静电力。 因此，本发明提供了一种新颖的电子照相方法和执行方法的装置，其结构简单，尺寸紧凑，并且能够提供高分辨率的图像。

公开(公告)号：USRE38810E1

公开(公告)日：2005-10-04

申请号：US10066035

申请日：2002-02-01

申请人： Hiroshi Terada ,  Akinori Toyoda ,  Yoshihito Urata ,  Hajime Yamamoto ,  Nobuo Genji ,  Naoaki Ishimaru ,  Tatsuo Nakatsugawa ,  Masakazu Naito

发明人： Hiroshi Terada ,  Akinori Toyoda ,  Yoshihito Urata ,  Hajime Yamamoto ,  Nobuo Genji ,  Naoaki Ishimaru ,  Tatsuo Nakatsugawa ,  Masakazu Naito

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2039 ,  G03G2215/2016 ,  G03G2215/2029 ,  G03G2215/2032 ,  G03G2215/2035

摘要： An image heating device comprises a cylindrical heating roller with a Curie temperature of 210° C., a magnetization coil for magnetizing the heating roller with an alternating magnetic field, which is arranged inside the heating roller, and a nip portion for heating a recording material that carriers a toner image with heat from the heating roller, while the recording material is being conveyed along said nip portion. The ratio between the amount of heat generated in said heat-generating member at Curie temperature or higher to the amount of heat generated at room temperature in said heat-generating member is not more than ½. With this configuration, the heating roller can regulate its own temperature to stabilize at a temperature that is suitable for fixing, and the problems of partial overheating or underheating, unstable heat generation, or damage of the device can be eliminated.

摘要翻译： 图像加热装置包括居里温度为210℃的圆柱形加热辊，设置在加热辊内部的用于使加热辊磁化的交变磁场的磁化线圈和用于加热记录材料的辊隙部分 其中记录材料沿着所述夹持部分被输送，所述图像从加热辊承载着具有热量的调色剂图像。 所述发热元件在居里温度以上产生的热量与所述发热元件在室温下产生的热量之比不大于1/2。 利用这种构造，加热辊可以调节其自身的温度以稳定在适于固定的温度，并且可以消除部分过热或过热，不稳定的发热或器件损坏的问题。

公开(公告)号：US5956552A

公开(公告)日：1999-09-21

申请号：US043549

申请日：1998-03-19

申请人： Noboru Katakabe ,  Hiroshi Terada ,  Hajime Yamamoto ,  Masanori Yoshikawa ,  Kenji Asakura

发明人： Noboru Katakabe ,  Hiroshi Terada ,  Hajime Yamamoto ,  Masanori Yoshikawa ,  Kenji Asakura

IPC分类号： G03G15/01

CPC分类号： G03G15/0194 ,  G03G15/0121 ,  G03G2215/0116

摘要： In a color image forming apparatus, a plurality of image forming units 3Y, 3M, 3C and 3K, which correspond to a plurality of colors and with each unit including a developing device and a photosensitive drum, are retained so as to define a cylinder. The color image forming apparatus includes: a conveying apparatus for conveying the plurality of image forming units around the main axis of the cylinder between an image forming position and a waiting position by simultaneously rotating all image forming units; an exposing device 6 for exposure of the photosensitive drum of the image forming unit that is in the image forming position 10; a transfer apparatus 5, which contacts a transfer belt 50 with the photosensitive drum 30 of the image forming unit that is in the image forming position, and when the image forming unit that is in the image forming position is switched, successively transcribes the toner images of all colors formed on the photosensitive drums onto the transfer belt, superimposes the toner images of all colors and forms a colored toner image on the transfer belt; and a transfer belt driving apparatus for driving the transfer belt at a constant speed. When a second color image is formed after a first color image, the first toner image color of the second color image is formed on the transfer belt by using the image forming unit of the last color added to the first color image. The exposing device includes a light source accommodated by the inner portion of the cylinder defined by the image forming units.

摘要翻译： PCT No.PCT / JP97 / 03349 Sec。 371日期：1998年3月19日 102（e）1998年3月19日PCT PCT 1997年9月22日PCT公布。 第WO98 / 13732号公报 日期：1998年4月2日在彩色图像形成装置中，与多种颜色对应的多个图像形成单元3Y，3M，3C和3K以及包括显影装置和感光鼓的每个单元被保持为 定义一个圆柱体。 彩色图像形成装置包括：传送装置，用于通过同时旋转所有图像形成单元在图像形成位置和等待位置之间传送多个图像形成单元围绕圆筒的主轴线; 用于曝光图像形成单元的图像形成位置10中的感光鼓的曝光装置6; 与转印带50接触的转印装置5与图像形成单元的感光鼓30处于图像形成位置，并且当图像形成单元处于图像形成位置时，转印装置5依次转印调色剂图像 将形成在感光鼓上的所有颜色的所有颜色转印到转印带上，将所有颜色的调色剂图像叠加并在转印带上形成着色调色剂图像; 以及用于以恒定速度驱动转印带的转印带驱动装置。 当在第一彩色图像之后形成第二彩色图像时，通过使用添加到第一彩色图像的最后一个颜色的图像形成单元，在转印带上形成第二彩色图像的第一调色剂图像颜色。 曝光装置包括由图像形成单元限定的圆筒的内部容纳的光源。

公开(公告)号：US5488465A

公开(公告)日：1996-01-30

申请号：US919905

申请日：1992-07-27

申请人： Hajime Yamamoto ,  Hiroshi Terada

发明人： Hajime Yamamoto ,  Hiroshi Terada

IPC分类号： G03G15/00 ,  G03G15/09 ,  G03G15/095 ,  G03G13/00

CPC分类号： B82Y15/00 ,  G03G15/09 ,  G03G15/095 ,  G03G15/751 ,  G03G2215/0621 ,  G03G2215/0639

摘要： An electrophotographic method, and an apparatus for performing the method, which is simple in construction, compact in size, and capable of providing images with a high resolution employs the use of a photoreceptor drum having a fixed magnet member therein. After forming an electrostatic latent image on the surface of the photoreceptor drum, the photoreceptor surface is placed in contact with magnetic developing material within a developing material hopper so as to attract the developing material onto the surface of the photoreceptor drum by magnetic force. When the photoreceptor surface further passes an electrode roller, the toner remains only at the image portion for development into a visible toner image. To remove the magnetic developing material from the photoreceptor surface, a magnetic force connecting the photoreceptor drum and the electrode roller and an electrostatic force connecting the photoreceptor drum and the electrode roller are employed.

摘要翻译： 一种电子照相方法和一种执行该方法的装置，其结构简单，体积小巧，并且能够提供高分辨率的图像使用其中具有固定磁体的感光鼓。 在感光鼓的表面上形成静电潜像之后，将感光体表面与显影材料料斗内的磁性显影材料接触，以便通过磁力将显影材料吸引到感光鼓的表面上。 当感光体表面进一步通过电极辊时，调色剂仅保留在图像部分以显影成可见的调色剂图像。 为了从感光体表面去除磁性显影材料，采用连接感光鼓和电极辊的磁力以及连接感光鼓和电极辊的静电力。

公开(公告)号：US5351115A

公开(公告)日：1994-09-27

申请号：US872187

申请日：1992-04-22

申请人： Hajime Yamamoto ,  Hiroshi Terada

发明人： Hajime Yamamoto ,  Hiroshi Terada

IPC分类号： G03G15/01

CPC分类号： G03G15/0126 ,  G03G15/0121 ,  G03G15/0194 ,  G03G2215/0112 ,  G03G2215/0116

摘要： A color electrophotographic apparatus employing a plurality of image forming units each including a photoreceptor and a corona charger, and using toner. In the apparatus, the image forming units are arranged to be displaceable, with an exposure position of an exposure device and a transfer position of a transfer paper holding member being fixed. During image formation, the image forming unit is moved to a predetermined position, and the obtained color image transferred onto paper sheet on a transfer paper holding member. Each of the image forming unit has a first image forming position confronting the transfer paper holding member, and a second image forming position different from the first image forming position.In the color electrophotographic method of the present invention, when a photoreceptor using time in each single color image forming process for the color image formation is represented by T, and time for electrostatically resting the photoreceptor until the next use of the photoreceptor is denoted by t, the process in the relation of T

摘要翻译： 一种使用多个图像形成单元的彩色电子照相设备，每个图像形成单元均包括感光体和电晕充电器，并使用调色剂。 在该装置中，图像形成单元布置成可移动，曝光装置的曝光位置和转印纸保持构件的转印位置被固定。 在图像形成期间，图像形成单元移动到预定位置，并将获得的彩色图像转印到转印纸保持构件上的纸张上。 每个图像形成单元具有面对转印纸保持构件的第一图像形成位置和与第一图像形成位置不同的第二图像形成位置。 在本发明的彩色电子照相方法中，当将用于彩色图像形成的每个单色图像形成处理中的感光体使用时间表示为T时，静电静电感光体直到下一次使用感光体的时间由t ，重复T

公开(公告)号：US6021303A

公开(公告)日：2000-02-01

申请号：US309922

申请日：1999-05-11

申请人： Hiroshi Terada ,  Akinori Toyoda ,  Yoshihito Urata ,  Hajime Yamamoto ,  Nobuo Genji ,  Naoaki Ishimaru ,  Tatsuo Nakatsugawa ,  Masakazu Naito

发明人： Hiroshi Terada ,  Akinori Toyoda ,  Yoshihito Urata ,  Hajime Yamamoto ,  Nobuo Genji ,  Naoaki Ishimaru ,  Tatsuo Nakatsugawa ,  Masakazu Naito

IPC分类号： G03G15/20

CPC分类号： G03G15/2053 ,  G03G15/2039 ,  G03G2215/2016 ,  G03G2215/2029 ,  G03G2215/2032 ,  G03G2215/2035

摘要： An image heating device comprises a cylindrical heating roller with a Curie temperature of 210.degree. C., a magnetization coil for magnetizing the heating roller with an alternating magnetic field, which is arranged inside the heating roller, and a nip portion for heating a recording material that carries a toner image with heat from the heating roller, while the recording material is being conveyed along said nip portion. The ratio between the amount of heat generated in said heat-generating member at Curie temperature or higher to the amount of heat generated at room temperature in said heat-generating member is not more than 1/2. With this configuration, the heating roller can regulate its own temperature to stabilize at a temperature that is suitable for fixing, and the problems of partial overheating or underheating, unstable heat generation, or damage of the device can be eliminated.

摘要翻译： 图像加热装置包括居里温度为210℃的圆柱形加热辊，设置在加热辊内部的具有交变磁场的加热辊磁化的磁化线圈和用于加热记录材料的辊隙部分 其中所述记录材料沿所述压合部分输送，所述图像具有来自所述加热辊的热量的调色剂图像。 所述发热元件在居里温度以上产生的热量与所述发热元件在室温下产生的热量的比率不大于+ E，（f 1/2 + EE）。 利用这种构造，加热辊可以调节其自身的温度以稳定在适于固定的温度，并且可以消除部分过热或过热，不稳定的发热或器件损坏的问题。