公开(公告)号：US5740493A

公开(公告)日：1998-04-14

申请号：US554971

申请日：1995-11-13

申请人： Noboru Otaki ,  Kazuyoshi Yoshida ,  Yoshitatsu Okiyama ,  Masato Sakai ,  Hiroyuki Inoue ,  Syuichiro Ogata

发明人： Noboru Otaki ,  Kazuyoshi Yoshida ,  Yoshitatsu Okiyama ,  Masato Sakai ,  Hiroyuki Inoue ,  Syuichiro Ogata

IPC分类号： G03G21/10 ,  G03G15/01 ,  G03G15/02 ,  G03G15/06 ,  G03G15/16 ,  G03G21/00 ,  G03G21/14 ,  G03G15/00

CPC分类号： G03G15/0105 ,  G03G15/1675 ,  G03G21/0064 ,  G03G2215/1623 ,  G03G2215/1661

摘要： An electrophotographic recording apparatus that removes reverse-charged toner that is charged with a polarity opposite to a polarity of a normal-charged toner. The apparatus includes a carrier belt; a transfer roller for carrying the toner adhering to the surface of the photosensitive body toward the carrier belt; a transfer power supply for applying to the transfer roller a first voltage that causes the normal-charged toner adhering to the surface of the photosensitive body to be transferred to the recording medium on the carrier belt, and a second voltage, of opposite polarity to the first voltage, that causes the reverse-charged toner adhering to the surface of the photosensitive body to be transferred to the carrier belt; and a carrier belt cleaning blade. A control circuit controls an operation of the transfer power supply, whereby the first voltage is applied to the transfer roller during an image-forming stage, and the second voltage is applied to the transfer roller during a reverse-charged toner removing stage. For example, the normal-charged toner may have a negative polarity, the reverse-charged toner may have a positive polarity, the first voltage may be positive, and the second voltage may be negative.

摘要翻译： 一种电摄影记录装置，其去除以与正常充电的调色剂的极性相反的极性充电的反向充电的调色剂。 该装置包括一个传送带; 用于将附着在感光体表面上的调色剂传送到传送带的转印辊; 用于向转印辊施加使导致感光体表面附着的正电荷的调色剂被转印到载体带上的记录介质的第一电压的转印电源和与该转印辊相反极性的第二电压 第一电压使得附着在感光体表面上的反向充电调色剂转印到载体带上; 和载体带清洁刮板。 控制电路控制传送电源的操作，由此在成像阶段期间将第一电压施加到转印辊，并且在反向充电的调色剂除去阶段期间将第二电压施加到转印辊。 例如，正常充电的调色剂可以具有负极性，反向充电的调色剂可以具有正极性，第一电压可以是正的，并且第二电压可以是负的。

公开(公告)号：US5983041A

公开(公告)日：1999-11-09

申请号：US886279

申请日：1997-07-01

申请人： Noboru Otaki ,  Yoshitatsu Okiyama ,  Shinichi Murakami ,  Masato Sakai ,  Koji Ida ,  Shuichiro Ogata ,  Hiroyuki Inoue ,  Syuiti Fujikura

发明人： Noboru Otaki ,  Yoshitatsu Okiyama ,  Shinichi Murakami ,  Masato Sakai ,  Koji Ida ,  Shuichiro Ogata ,  Hiroyuki Inoue ,  Syuiti Fujikura

IPC分类号： G03G15/16 ,  G03G15/00

CPC分类号： G03G15/169 ,  G03G15/6591 ,  G03G2215/00497 ,  G03G2215/0119 ,  G03G2215/021

摘要： An image recording apparatus includes a rotating photosensitive drum, a developing unit, a neutralizing device, and a transferring device. An electrostatic latent image is formed on a charged surface of the rotating photosensitive drum, the electrostatic latent image being developed by a developing unit and subsequently transferred by a transferring device to a print medium. The neutralizing device neutralizes the charged surface of the photosensitive drum at the point on the surface disposed downstream of the developing unit and upstream of the transferring device with respect to rotation of the photosensitive drum. A controller controls the neutralizing device according to characteristics of the print medium such as size, material, insulation, and transparency. The neutralizing device may be operated in different modes. For example, the neutralizing device may neutralize an entirety of the charged surface of the photosensitive drum only if the print medium is of a predetermined characteristic, i.e., an insulating sheet such as a transparent OHP sheet or may neutralize only selected parts of the charged surface of the photosensitive drum according to a width of the print medium.

摘要翻译： 图像记录装置包括旋转感光鼓，显影单元，中和装置和转印装置。 在旋转的感光鼓的带电表面上形成静电潜像，静电潜像由显影单元显影，随后由转印装置转印到打印介质上。 中和装置在感光鼓的表面上相对于感光鼓的旋转中和位于显影单元下游的表面上并且在转印装置的上游的位置处中和感光鼓的带电表面。 控制器根据打印介质的特性来控制中和装置，例如尺寸，材料，绝缘和透明度。 中和装置可以以不同的模式操作。 例如，如果打印介质具有预定特性，即绝缘片例如透明OHP片，则中和装置可以中和感光鼓的整个带电表面，或者可以仅中和所充电的表面的所选部分 根据打印介质的宽度。

公开(公告)号：US5765076A

公开(公告)日：1998-06-09

申请号：US792910

申请日：1996-10-01

申请人： Syuichiro Ogata ,  Yoshitatsu Okiyama ,  Kazuyoshi Yoshida ,  Toru Ishihara ,  Kuniharu Hayashi ,  Hiroyuki Yajima ,  Mikio Yamamoto ,  Takashi Itaya ,  Masanori Maekawa ,  Kazuhiko Nagaoka

发明人： Syuichiro Ogata ,  Yoshitatsu Okiyama ,  Kazuyoshi Yoshida ,  Toru Ishihara ,  Kuniharu Hayashi ,  Hiroyuki Yajima ,  Mikio Yamamoto ,  Takashi Itaya ,  Masanori Maekawa ,  Kazuhiko Nagaoka

IPC分类号： G03G15/02 ,  G03G15/00

CPC分类号： G03G15/0225

摘要： A method of forming an electrostatic latent image includes printing operation and toner recovering operation. the printing operation includes charging, forming an electrostatic latent image, developing, and transferring operations. The toner recovering operation includes the step of charging the photosensitive drum in timed relation to the rotation of the photosensitive drum after printing operation so that reversely charged toner deposited on the charging roller migrates from the charging roller to the photosensitive drum. The toner migrated from the charging roller to the photosensitive drum is recovered into a developer. An apparatus for forming an image includes a charging roller, photosensitive drum, developing roller, and transfer roller. The apparatus further includes a reversely-charged-toner recovering device which causes the photosensitive drum to be charged in timed relation to the rotation of the photosensitive drum after printing operation so that the reversely charged toner deposited on the charging roller migrates to the photosensitive drum. The developer recovers the toner which has migrated to the photosensitive drum from the charging roller.

摘要翻译： 形成静电潜像的方法包括打印操作和调色剂回收操作。 打印操作包括充电，形成静电潜像，显影和转印操作。 调色剂回收操作包括以下步骤：在打印操作之后以与感光鼓的旋转定时关系的方式充电感光鼓，使得沉积在充电辊上的反向充电的调色剂从充电辊移动到感光鼓。 从充电辊迁移到感光鼓的调色剂被回收到显影剂中。 用于形成图像的装置包括充电辊，感光鼓，显影辊和转印辊。 该装置还包括一个反向充电的调色剂回收装置，其使打印操作之后使感光鼓以与感光鼓的转动成正比的方式进行充电，使得沉积在充电辊上的反向充电的调色剂迁移到感光鼓上。 显影剂从充电辊回收已经迁移到感光鼓的调色剂。

公开(公告)号：US5943533A

公开(公告)日：1999-08-24

申请号：US24602

申请日：1998-02-17

申请人： Syuichiro Ogata ,  Yoshitatsu Okiyama ,  Kazuyoshi Yoshida ,  Toru Ishihara ,  Kuniharu Hayashi ,  Hiroyuki Yajima ,  Mikio Yamamoto ,  Takashi Itaya ,  Masanori Maekawa ,  Kazuhiko Nagaoka

发明人： Syuichiro Ogata ,  Yoshitatsu Okiyama ,  Kazuyoshi Yoshida ,  Toru Ishihara ,  Kuniharu Hayashi ,  Hiroyuki Yajima ,  Mikio Yamamoto ,  Takashi Itaya ,  Masanori Maekawa ,  Kazuhiko Nagaoka

IPC分类号： G03G15/02

CPC分类号： G03G15/0225

摘要： A method of forming an electrostatic latent image includes printing operation and toner recovering operation. The printing operation includes charging, forming an electrostatic latent image, developing, and transferring operations. The toner recovering operation includes the step of charging the photosensitive drum in timed relation to the rotation of the photosensitive drum after printing operation so that reversely charged toner deposited on the charging roller migrates from the charging roller to the photosensitive drum. The toner migrated from the charging roller to the photosensitive drum is recovered into a developer. An apparatus for forming an image includes a charging roller, photosensitive drum, developing roller, and transfer roller. The apparatus further includes a reversely-charged-toner recovering device which causes the photosensitive drum to be charged in timed relation to the rotation of the photosensitive drum after printing operation so that the reversely charged toner deposited on the charging roller migrates to the photosensitive drum. The developer recovers the toner which has migrated to the photosensitive drum from the charging roller.

摘要翻译： 形成静电潜像的方法包括打印操作和调色剂回收操作。 打印操作包括充电，形成静电潜像，显影和转印操作。 调色剂回收操作包括以下步骤：在打印操作之后以与感光鼓的旋转定时关系的方式充电感光鼓，使得沉积在充电辊上的反向充电的调色剂从充电辊移动到感光鼓。 从充电辊迁移到感光鼓的调色剂被回收到显影剂中。 用于形成图像的装置包括充电辊，感光鼓，显影辊和转印辊。 该装置还包括一个反向充电的调色剂回收装置，其使打印操作之后使感光鼓以与感光鼓的转动成正比的方式进行充电，使得沉积在充电辊上的反向充电的调色剂迁移到感光鼓上。 显影剂从充电辊回收已经迁移到感光鼓的调色剂。

公开(公告)号：US6112037A

公开(公告)日：2000-08-29

申请号：US372150

申请日：1999-08-11

申请人： Masato Nagata ,  Hisao Ono ,  Yoshiharu Momiyama ,  Noboru Otaki ,  Atsushi Kurabayashi ,  Shinichi Murakami ,  Yoshitatsu Okiyama ,  Mikio Yamamoto ,  Shigeki Nakajima ,  Masato Sakai ,  Fumiaki Yoshida ,  Norio Ebata ,  Makoto Yabuki ,  Makoto Otake

发明人： Masato Nagata ,  Hisao Ono ,  Yoshiharu Momiyama ,  Noboru Otaki ,  Atsushi Kurabayashi ,  Shinichi Murakami ,  Yoshitatsu Okiyama ,  Mikio Yamamoto ,  Shigeki Nakajima ,  Masato Sakai ,  Fumiaki Yoshida ,  Norio Ebata ,  Makoto Yabuki ,  Makoto Otake

IPC分类号： G03G15/01 ,  G03G15/00

CPC分类号： G03G15/0194 ,  G03G2215/0119

摘要： A color image forming apparatus includes a carrier belt which runs along a transport path of a recording medium to transport the recording medium. A number of image-forming sections are aligned in the transport path. Each of the plurality of image-forming sections forms a toner image of a corresponding color included in an image signal. A plurality of transfer units are provided, with each being disposed to oppose a corresponding one of the number of image-forming sections. Each of the number of transfer units transferring the toner image of the corresponding color to the recording medium. A fixing unit is provided that fixes the toner image to the recording medium. A controller is provided that detects a number of colors in the image signal. The controller sets one set of speeds from a plurality of different sets of speeds in accordance with the number of colors. Each set of speeds includes a speed of the carrier belt, a speed at which each of the image-forming sections forms a respective toner image of a corresponding color, and a speed of the fixing unit. The speed of the carrier belt, the speed at which each of the image-forming sections forms a respective toner image of a corresponding color, and the speed of the fixing unit of any one respective set of speeds are substantially equal to each other.

摘要翻译： 彩色图像形成装置包括沿着记录介质的传送路径延伸以运送记录介质的传送带。 多个图像形成部分在传送路径中对齐。 多个图像形成部分中的每一个形成包括在图像信号中的相应颜色的调色剂图像。 提供了多个传送单元，每个传送单元被设置成与多个图像形成部分中的对应的一个相对。 多个转印单元中的每一个将相应颜色的调色剂图像转印到记录介质上。 提供了将调色剂图像定影到记录介质上的定影单元。 提供了一种控制器，其检测图像信号中的多个颜色。 控制器根据颜色的数量从多个不同的速度集合设定一组速度。 每组速度包括载体带的速度，每个图像形成部分形成相应颜色的相应调色剂图像的速度和定影单元的速度。 载体带的速度，每个图像形成部分形成相应颜色的相应调色剂图像的速度以及任何一个相应速度的定影单元的速度基本上彼此相等。

公开(公告)号：US5983042A

公开(公告)日：1999-11-09

申请号：US954733

申请日：1997-10-20

申请人： Masato Nagata ,  Hisao Ono ,  Yoshiharu Momiyama ,  Noboru Otaki ,  Atsushi Kurabayashi ,  Shinichi Murakami ,  Yoshitatsu Okiyama ,  Mikio Yamamoto ,  Shigeki Nakajima ,  Masato Sakai ,  Fumiaki Yoshida ,  Norio Ebata ,  Makoto Yabuki ,  Makoto Otake

发明人： Masato Nagata ,  Hisao Ono ,  Yoshiharu Momiyama ,  Noboru Otaki ,  Atsushi Kurabayashi ,  Shinichi Murakami ,  Yoshitatsu Okiyama ,  Mikio Yamamoto ,  Shigeki Nakajima ,  Masato Sakai ,  Fumiaki Yoshida ,  Norio Ebata ,  Makoto Yabuki ,  Makoto Otake

IPC分类号： G03G15/01 ,  G03G15/00

CPC分类号： G03G15/0194 ,  G03G2215/0119

摘要： A color image forming apparatus provides the prolonged life of the photosensitive drums, carrier belt, and toner of the respective colors and improves the quality of the printed color image. A carrier belt transports a recording medium placed thereon so that the recording medium passes through a plurality of printing mechanisms which print images of different colors on the recording medium in superposition. Each printing mechanism prints an image of a corresponding color. The printing mechanism is adapted to be moved into its operative position where the photosensitive drum of the printing mechanism is in contact with the carrier belt to print the image on the recording medium, and into its non-operative position where the photosensitive drum of the printing mechanism is not in contact with the carrier belt. A controller receives print data from a host device such as a personal computer and checks each page of the print data to determine whether any one of a predetermined plurality of colors is missing in the page. If a particular color is missing in the print data, then the controller outputs an UP signal to a positioning mechanism for a corresponding printing mechanism. If the color is not missing, then the controller outputs a DOWN signal. The printing mechanism moves a corresponding printing mechanism into the operative position if the UP signal is received from the controller and into its operative position if the DOWN signal is received.

摘要翻译： 彩色图像形成装置提供各种颜色的感光鼓，传送带和调色剂的延长的寿命，并且提高了打印的彩色图像的质量。 载体带传送放置在其上的记录介质，使得记录介质通过多个打印机构，其以叠加的方式在记录介质上打印不同颜色的图像。 每个打印机构打印相应颜色的图像。 打印机构适于移动到其操作位置，其中打印机构的感光鼓与传送带接触以将图像打印在记录介质上，并进入其非打印位置，其中打印的感光鼓 机构不与传送带接触。 控制器从诸如个人计算机的主机设备接收打印数据，并检查打印数据的每一页以确定页面中是否缺少预定多种颜色中的任何一种。 如果在打印数据中缺少特定的颜色，则控制器向对应的打印机构的定位机构输出UP信号。 如果颜色不丢失，则控制器输出DOWN信号。 如果接收到DOWN信号，如果从控制器接收到UP信号并进入其操作位置，则打印机构将相应的打印机构移动到操作位置。

公开(公告)号：US06711371B2

公开(公告)日：2004-03-23

申请号：US10131384

申请日：2002-04-25

申请人： Tetsu Koyama ,  Yoshitatsu Okiyama ,  Teruaki Kuroda

发明人： Tetsu Koyama ,  Yoshitatsu Okiyama ,  Teruaki Kuroda

IPC分类号： G03G1508

CPC分类号： G03G15/0808 ,  G03G2215/06

摘要： To prevent irregular print density resulting from an uneven toner layer, a developer remover which may be a plurality of cylindrical members 31 formed like rollers, a net-like member, roller member and/or a contact member, are arranged in a manner to contact a sponge roller 22. When residual toner on the surface of a developing roller 21 is scraped off by the sponge roller 22, the developer remover pushes the toner away without allowing the toner to clot inside the sponge roller 22. Consequently, the sponge roller's performance to remove toner from itself to the developing roller 21 can be preserved for a long time.

摘要翻译： 为了防止由不均匀的调色剂层引起的不均匀的印刷密度，可以以多个形成为辊状的圆柱形部件31，网状部件，辊部件和/或接触部件的显影剂移除器以与之接触的方式布置 当海绵辊22刮掉显影辊21的表面上的残留调色剂时，显影剂去除剂将调色剂推出，而不会使调色剂凝结在海绵辊22内。因此，海绵辊的性能 能够将调色剂自身从显影辊21上除去可以长期保存。

公开(公告)号：US06324371B1

公开(公告)日：2001-11-27

申请号：US09628721

申请日：2000-07-28

申请人： Yoshitatsu Okiyama ,  Shinichi Murakami ,  Ken Kikuchi

发明人： Yoshitatsu Okiyama ,  Shinichi Murakami ,  Ken Kikuchi

IPC分类号： G03G1508

CPC分类号： G03G15/0886 ,  G03G15/0872 ,  G03G2215/067

摘要： A toner cartridge includes a housing and a shutter inserted therein. The housing has a first partially cylindrical wall and a box-like portion that communicates with the first partially cylindrical wall. The shutter has a second partially cylindrical wall inserted inside the first partially cylindrical wall such that the second partially cylindrical wall is slidable on and concentric with an inner surface of the first partially cylindrical wall. The shutter has a supporting member that engages the housing to support the shutter such that the second partially cylindrical wall is in pressure contact with the first partially cylindrical wall. The supporting member may be in the shape of an arcuate member or ring that engages a part of the box-like portion so that the shutter is rotatably supported in the housing by the part and the first partially cylindrical wall. The housing has a projection or rib that inwardly projects toward the first partially cylindrical wall. The projection abuts the arcuate member so that the shutter is rotatably supported in the housing by the arcuate member and the first partially cylindrical wall.

摘要翻译： 调色剂盒包括壳体和插入其中的快门。 壳体具有第一部分圆柱形壁和与第一部分圆柱形壁连通的盒状部分。 闸门具有插入第一部分圆柱形壁内的第二部分圆柱形壁，使得第二部分圆柱形壁可在第一部分圆柱形壁的内表面上滑动并与其同心。 闸门具有支撑构件，其与壳体接合以支撑闸门，使得第二部分圆柱形壁与第一部分圆柱形的壁压力接触。 支撑构件可以是弓形构件或环的形状，其接合盒状部分的一部分，使得活门通过部件和第一部分圆柱形壁可旋转地支撑在壳体中。 壳体具有朝向第一部分圆柱形壁向内突出的突起或肋。 突起抵靠弓形构件，使得挡板通过弓形构件和第一部分圆柱形壁可旋转地支撑在壳体中。

公开(公告)号：US5991575A

公开(公告)日：1999-11-23

申请号：US306914

申请日：1999-05-07

申请人： Yoshitatsu Okiyama ,  Ken Kikuchi

发明人： Yoshitatsu Okiyama ,  Ken Kikuchi

IPC分类号： G03G15/20 ,  B65H5/02 ,  G03G15/00

CPC分类号： G03G15/755 ,  G03G2215/00143 ,  G03G2215/0119 ,  G03G2215/1623 ,  G03G2215/2016

摘要： A belt unit has a drive roller, a driven roller, and a tension roller. An endless belt is mounted about the drive roller, driven roller, and tension roller. When the drive roller is driven by a motor, the endless belt runs with a print medium placed thereon. The tension roller longitudinally extends in a direction perpendicular to the direction in which the belt runs. First and second support members are pivotally mounted on a frame and support the tension roller between the first and second supports. The spring urges the support members so that the tension roller exerts tension on the belt. A coupling member such as a rod, wire, and plate couples the first support member to the second support member, so that a first pivotal movement of one of the first and second support members causes a second pivotal movement of the other of the first and second support members, the first and second pivotal movements applying a substantially same urging force to the belt.

摘要翻译： 带单元具有驱动辊，从动辊和张紧辊。 围绕驱动辊，从动辊和张紧辊安装环形带。 当驱动辊由电动机驱动时，环形带随其上放置有打印介质一起运行。 张紧辊在垂直于带运行方向的方向上纵向延伸。 第一和第二支撑构件枢转地安装在框架上并且在第一和第二支撑件之间支撑张紧辊。 弹簧推动支撑构件，使得张紧辊在带上施加张力。 诸如杆，线和板的联接构件将第一支撑构件耦合到第二支撑构件，使得第一和第二支撑构件中的一个的第一枢转运动导致第一和第二支撑构件中的另一个的第二枢转运动 第二支撑构件，第一和第二枢转运动对带施加大致相同的作用力。

公开(公告)号：USRE40711E1

公开(公告)日：2009-05-12

申请号：US11526295

申请日：2006-09-25

申请人： Yoshitatsu Okiyama ,  Shinichi Murakami ,  Ken Kikuchi

发明人： Yoshitatsu Okiyama ,  Shinichi Murakami ,  Ken Kikuchi

IPC分类号： G03G15/08

CPC分类号： G03G15/0886 ,  G03G15/0872 ,  G03G2215/067

摘要： A toner cartridge includes a housing and a shutter inserted therein. The housing has a first partially cylindrical wall and a box-like portion that communicates with the first partially cylindrical wall. The shutter has a second partially cylindrical wall inserted inside the first partially cylindrical wall such that the second partially cylindrical wall is slidable on and concentric with an inner surface of the first partially cylindrical wall. The shutter has a supporting member that engages the housing to support the shutter such that the second partially cylindrical wall is in pressure contact with the first partially cylindrical wall. The supporting member may be in the shape of an arcuate member or ring that engages a part of the box-like portion so that the shutter is rotatably supported in the housing by the part and the first partially cylindrical wall. The housing has a projection or rib that inwardly projects toward the first partially cylindrical wall. The projection abuts the arcuate member so that the shutter is rotatably supported in the housing by the arcuate member and the first partially cylindrical wall.

摘要翻译： 调色剂盒包括壳体和插入其中的快门。 壳体具有第一部分圆柱形壁和与第一部分圆柱形壁连通的盒状部分。 闸门具有插入第一部分圆柱形壁内的第二部分圆柱形壁，使得第二部分圆柱形壁可在第一部分圆柱形壁的内表面上滑动并与其同心。 闸门具有支撑构件，其与壳体接合以支撑闸门，使得第二部分圆柱形壁与第一部分圆柱形的壁压力接触。 支撑构件可以是弓形构件或环的形状，其接合盒状部分的一部分，使得活门通过部件和第一部分圆柱形壁可旋转地支撑在壳体中。 壳体具有朝向第一部分圆柱形壁向内突出的突起或肋。 突起抵靠弓形构件，使得挡板通过弓形构件和第一部分圆柱形壁可旋转地支撑在壳体中。