公开(公告)号：US5200784A

公开(公告)日：1993-04-06

申请号：US774377

申请日：1991-10-10

申请人： Masatoshi Kimura ,  Sachio Sasaki ,  Hideaki Iwasaki ,  Kunihiko Sato ,  Masao Konishi ,  Akiyoshi Iwamasa ,  Toshio Tooda ,  Hiroshi Nou ,  Shigenobu Utaka ,  Ryo Kitao

发明人： Masatoshi Kimura ,  Sachio Sasaki ,  Hideaki Iwasaki ,  Kunihiko Sato ,  Masao Konishi ,  Akiyoshi Iwamasa ,  Toshio Tooda ,  Hiroshi Nou ,  Shigenobu Utaka ,  Ryo Kitao

IPC分类号： G03G15/16

CPC分类号： G03G15/1645

摘要： A toner image transferring device is applied to, for example, an electrophotographic printer for electrostatically transferring a charged toner image from a photosensitive drum to a sheet or paper. The device encompasses a transfer charger disposed near the drum to form a clearance therebetween for feeding an electric charge to the sheet or paper through which the sheet or paper is passed, an electric source for supplying an electric energy to the transfer charger to give the sheet or paper an electric charge having a polarity opposite to that of the charge of the toner image, and a controller for controlling the electric energy output from the electric source the transfer charger so that a leading edge of the sheet or paper can be prevented from being excessively charged.

摘要翻译： 将调色剂图像转印装置应用于例如用于将带电调色剂图像从感光鼓静电转印到片材或纸张上的电子照相打印机。 该装置包括设置在滚筒附近的转印充电器，以在其间形成间隙，以将电荷馈送到片材或纸张通过该片材或纸张;电源，用于向转印充电器供应电能以给予片材 或者印刷具有与调色剂图像的电荷的极性相反的极性的电荷;以及控制器，用于控制从电源输出的转移充电器的电能，使得可以防止片材或纸张的前缘成为 过度收费

公开(公告)号：US5845184A

公开(公告)日：1998-12-01

申请号：US220436

申请日：1994-03-30

申请人： Akira Nagahara ,  Yoshio Yamaguchi ,  Shigenobu Utaka ,  Toshio Tooda ,  Haruyasu Watanabe ,  Sachio Sasaki ,  Mitsuhito Furukawa ,  Mitsuru Sato ,  Nobuo Kuwabara ,  Takefumi Takahashi

发明人： Akira Nagahara ,  Yoshio Yamaguchi ,  Shigenobu Utaka ,  Toshio Tooda ,  Haruyasu Watanabe ,  Sachio Sasaki ,  Mitsuhito Furukawa ,  Mitsuru Sato ,  Nobuo Kuwabara ,  Takefumi Takahashi

IPC分类号： G03G9/083 ,  G03G15/08 ,  G03G15/09

CPC分类号： G03G15/09 ,  G03G15/0896 ,  G03G2215/00012 ,  G03G2215/0609

摘要： A developing apparatus is provided for developing an electrostatic latent image on a latent image carrier by supplying the latent image carrier with a developer. This developing apparatus includes a toner accommodating chamber for accommodating magnetic toners. The apparatus also includes a developing roller, having a plurality of fixed magnetic pole members and sleeves provided along peripheries of the fixed magnetic pole members and rotating thereabout, for feeding the developer composed of magnetic carriers and magnetic toners to the latent image carrier. The apparatus further includes a developing chamber having a partition wall formed along the developing roller and assuming a configuration adapted to a shape of the developing roller, and a toner supply port for supplying the magnetic toners to the developing chamber from the toner accommodating chamber. In another mode of the developing apparatus, the center of each magnetic pole of the fixed magnetic pole members is located in a position deviating from the toner supply port. Further, in still another mode of the developing apparatus, there is employed the magnetic carrier the core of which is iron powder exhibiting strong saturation magnetization.

摘要翻译： 提供一种显影装置，用于通过向潜像载体提供显影剂来使潜像载体上的静电潜像显影。 该显影装置包括用于容纳磁性调色剂的调色剂容纳室。 该装置还包括一个显影辊，具有多个固定磁极件和沿固定磁极件的周边设置并在其周围旋转的套筒，用于将由磁性载体和磁性调色剂构成的显影剂供给潜像载体。 该装置还包括具有沿着显影辊形成的分隔壁并具有适于显影辊形状的分隔壁的显影室和用于从调色剂容纳室将磁性调色剂供应到显影室的调色剂供给口。 在显影装置的另一种模式中，固定磁极件的每个磁极的中心位于偏离调色剂供给口的位置。 此外，在显影装置的另一种模式中，使用磁性载体，其核心是呈现强饱和磁化强度的铁粉。

公开(公告)号：US5852757A

公开(公告)日：1998-12-22

申请号：US680959

申请日：1996-07-16

申请人： Toshio Tooda ,  Yoshio Yamaguchi ,  Nobuo Kuwabara ,  Mituru Sato ,  Haruyasu Watanabe ,  Akira Nagahara ,  Sachio Sasaki ,  Yoshiya Ishiyama ,  Hiroshi Kera ,  Masanori Nishido ,  Hisashi Hanzawa

发明人： Toshio Tooda ,  Yoshio Yamaguchi ,  Nobuo Kuwabara ,  Mituru Sato ,  Haruyasu Watanabe ,  Akira Nagahara ,  Sachio Sasaki ,  Yoshiya Ishiyama ,  Hiroshi Kera ,  Masanori Nishido ,  Hisashi Hanzawa

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

CPC分类号： G03G15/0822 ,  G03G21/105

摘要： An electrophotographic image forming apparatus including a toner circulating mechanism for recovering a residual toner scraped from a photosensitive drum to a developing device. The developing device includes a housing for defining a toner chamber, a developing roller rotatably mounted in the housing, an agitator rotatably mounted in the housing and provided in the toner chamber, and a partition member mounted to the housing to define a carrier chamber between the partition member and the developing roller. The toner circulating mechanism directly returns the residual toner scraped from the photosensitive drum to the toner chamber in the developing device. The toner chamber may contain a foreign matter removing device. The partition member may have various shapes.

摘要翻译： 一种电子照相图像形成装置，包括调色剂循环机构，用于将从感光鼓刮下的残余调色剂回收到显影装置。 显影装置包括用于限定调色剂室的壳体，可旋转地安装在壳体中的显影辊，可旋转地安装在壳体中并设置在调色剂室中的搅拌器，以及安装到壳体上以在其间形成载体室的分隔构件 分隔构件和显影辊。 调色剂循环机构将从感光鼓刮下的残留调色剂直接返回到显影装置中的调色剂室。 调色剂室可以含有异物去除装置。 分隔构件可以具有各种形状。

公开(公告)号：US5848343A

公开(公告)日：1998-12-08

申请号：US886416

申请日：1997-07-01

申请人： Takefumi Takahashi ,  Shizuo Takano ,  Yoshio Yamaguchi ,  Hiroshi Kera ,  Akira Nagahara ,  Yoshiya Ishiyama ,  Hideki Kamaji ,  Toshio Tooda

发明人： Takefumi Takahashi ,  Shizuo Takano ,  Yoshio Yamaguchi ,  Hiroshi Kera ,  Akira Nagahara ,  Yoshiya Ishiyama ,  Hideki Kamaji ,  Toshio Tooda

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

CPC分类号： G03G21/0005 ,  G03G15/0822

摘要： An electrophotographic image forming apparatus includes an electrostatic latent image carrying body, an electrifying unit for electrifying the image carrying body, a light irradiating unit to form an electrostatic latent image in accordance to image information, a developing unit for discharging toner to the image carrying body to develop the latent image, a transfer unit for transferring the toner image to a recording sheet, and a cleaner for removing residual toner on the image carrying body. The toner removed from the image carrying body is recirculated to the developer receiving box. An additional toner image is formed on a position other than a first position where the electrostatic latent image is formed in accordance with the image information. The toner is removed by the cleaner without being transferred to the recording sheet and recirculated from the image carrying body to the developer receiving box.

摘要翻译： 电子照相图像形成装置包括静电潜像携带体，用于使图像承载体带电的带电单元，根据图像信息形成静电潜像的光照射单元，用于将墨粉排出到图像载体上的显影单元 显影潜像，用于将调色剂图像转印到记录片材的转印单元，以及用于除去图像载体上的残留调色剂的清洁剂。 从图像承载体移除的调色剂被再循环到显影剂接收盒。 在根据图像信息形成静电潜像的第一位置之外的位置处形成附加的调色剂图像。 调色剂被清洁剂除去而不被转印到记录纸上并从图像承载体再循环到显影剂接收盒。

公开(公告)号：US5557371A

公开(公告)日：1996-09-17

申请号：US401137

申请日：1995-03-08

申请人： Toshio Tooda

发明人： Toshio Tooda

IPC分类号： G03G15/05 ,  G03G5/00 ,  G03G5/10 ,  G03G15/06 ,  G03G15/08 ,  G03G15/34 ,  G03G15/04 ,  G03G15/056

CPC分类号： G03G5/10 ,  G03G15/344 ,  G03G5/00 ,  G03G2215/0497 ,  G03G2215/0609

摘要： An electrophotographic apparatus has a plurality of developing rollers arranged in a row in the direction of rotation of a photosensitive member so as to face the surface of the photosensitive member. Each developing roller retains on the surface thereof a developer consisting essentially of an electrically insulating magnetic toner and an electrically conductive magnetic carrier. At least the surface portion of each developing roller is driven to rotate in order to transport the developer to the surface of the photosensitive member. A developing bias voltage is applied to each of the developing rollers. Exposure is carried out by applying image light from the reverse side of the photosensitive member toward the most downstream developing roller as viewed in the direction of rotation of the photosensitive member.

摘要翻译： 电子照相设备具有多个显影辊，其以感光构件的旋转方向排列成一行，以面对感光构件的表面。 每个显影辊在其表面上保持主要由电绝缘磁性调色剂和导电磁性载体组成的显影剂。 驱动每个显影辊的至少表面部分旋转，以将显影剂输送到感光构件的表面。 对每个显影辊施加显影偏压。 通过从感光构件的背面朝向最下游的显影辊施加图像光来进行曝光，从感光构件的旋转方向观察。

公开(公告)号：US5512980A

公开(公告)日：1996-04-30

申请号：US300349

申请日：1994-09-02

申请人： Yoshio Yamaguchi ,  Toshio Tooda

发明人： Yoshio Yamaguchi ,  Toshio Tooda

IPC分类号： G03G15/08 ,  G03G15/06

CPC分类号： G03G15/0856 ,  G03G15/086

摘要： Disclosed are a toner empty detecting method of and a toner empty detecting apparatus for detecting an empty state of toners in a toner hopper. The toner empty detecting method comprises: a step of taking in the output of the detecting element with every constant period; a step of comparing a detected value relative to a take-in value with an average value of the detected values during a detection period of last time; a step of counting the number of times when the detected value is smaller than the average value during a detection cycle of this time; and a step of generating a toner empty output when the count value is larger than the predetermined value. The toner empty detecting apparatus comprises: a toner sensor for detecting the toners in the toner hopper; and a control circuit for comparing a detected value relative to a take-in value when taking in an output of the toner sensor with every constant period with an average value of the detected values during a detection period of last time, comparing the count value with a predetermined value and generating an empty output when the count value is larger than the predetermined value. Even if there is a scatter in output level of the toner detection sensor, the toner empty can be thereby stably detected.

摘要翻译： 公开了一种调色剂空的检测方法和用于检测调色剂料斗中的调色剂的空状态的调色剂空的检测装置。 调色剂空的检测方法包括：以每个恒定周期取入检测元件的输出的步骤; 将检测值相对于接收值与上次检测期间的检测值的平均值进行比较的步骤; 此时的检测周期中检测值小于平均值的次数的计数步骤; 以及当所述计数值大于所述预定值时产生调色剂空输出的步骤。 调色剂空的检测装置包括：调色剂传感器，用于检测调色剂料斗中的调色剂; 以及控制电路，用于在上次检测期间以每个恒定周期与调色剂传感器的输出中检测值的平均值比较检测值相对于接收值的比较，将计数值与 预定值，并且当所述计数值大于所述预定值时产生空输出。 即使调色剂检测传感器的输出电平有分散，也可以稳定地检测调色剂的空白。