公开(公告)号：US5187523A

公开(公告)日：1993-02-16

申请号：US757637

申请日：1991-09-11

申请人： Keishi Osawa

发明人： Keishi Osawa

IPC分类号： G03G15/09

CPC分类号： G03G15/0907

摘要： A developing apparatus includes a movable developer carrying member for carrying a layer of a developer containing toner particles and magnetic carrier particles to a developing zone, the toner particles and magnetic carrier particles being charged to opposite polarities; a stationary magnet disposed on a side of the developer carrying member opposite the image bearing member, the magnet forming a magnetic brush wherein the developer is contactable to the image bearing member in the developing zone; a voltage source for producing an oscillating electric field in the developing zone by application of an oscillating bias voltage to the developer carrying member; wherein the oscillating bias voltage satisfies a maximum Vu1max of a potential difference Vu1 between an image portion potential of the electrostatic image and a potential of the developer carrying member in the transfer phase of the oscillating electric field, is larger than a maximum Vr1max of a potential difference Vr1 therebetween in the back transfer phase; a time integration Iu1 of the potential difference Vu1 is larger than a time integration Ir1 of the potential difference Vr1; a maximum Vu2 max of a potential differnece Vu2 between a non-image portion potential of the electrostatic latent image and a potential of the developer carryign member in the transfer phase of the oscillating electric field, is not less than a maxiumu Vr2max of a potential difference Vr2 therebetween in the back transfer phase; and a time integration Iu2 of the potential difference Vu1 is not more than a time integration Ir2 of the potential difference Vr2.

摘要翻译： 显影装置包括用于将显影剂含有调色剂颗粒和磁性载体颗粒的层承载到显影区的可移动显影剂承载构件，调色剂颗粒和磁性载体颗粒以相反的极性充电; 设置在与图像承载部件相对的显影剂承载部件侧的固定磁体，磁体形成磁刷，其中显影剂可与显影区域中的图像承载部件接触; 用于通过向显影剂承载构件施加振荡偏压而在显影区产生振荡电场的电压源; 其中振荡偏置电压满足静电图像的图像部分电位和振动电场的转移相位中的显影剂承载部件的电位之间的电位差Vu1的最大值Vu1max大于电位的最大Vr1max 反转印相中的差Vr1; 电位差Vu1的时间积分Iu1大于电位差Vr1的时间积分Ir1; 在静电潜像的非图像部分电位和振荡电场的转移相位中的显影剂输入部件的电位之间的电位差Vu2的最大Vu2max不小于电位差的最大Vr2max Vr2在后转移阶段; 并且电位差Vu1的时间积分Iu2不大于电位差Vr2的时间积分Ir2。

公开(公告)号：US4680669A

公开(公告)日：1987-07-14

申请号：US573341

申请日：1984-01-24

申请人： Hiroaki Tsuchiya ,  Kazuki Tanaka ,  Keishi Osawa

发明人： Hiroaki Tsuchiya ,  Kazuki Tanaka ,  Keishi Osawa

IPC分类号： G03G15/02 ,  H01T19/00 ,  H01T23/00

CPC分类号： G03G15/0258 ,  G03G15/0291 ,  H01T19/00

摘要： A corona discharging apparatus is adapted to vibrate a corona discharge wire and/or grid wires by the use of a vibrating element to remove foreign matters deposited on the corona discharging wire and/or grid wires.

摘要翻译： 电晕放电装置适于通过使用振动元件来振动电晕放电线和/或栅格线以去除沉积在电晕放电线和/或栅格线上的异物。

公开(公告)号：US06418297B1

公开(公告)日：2002-07-09

申请号：US09656837

申请日：2000-09-07

申请人： Mitsuru Yamatani ,  Keishi Osawa ,  Osamu Sugino

发明人： Mitsuru Yamatani ,  Keishi Osawa ,  Osamu Sugino

IPC分类号： G03G2110

CPC分类号： G03G21/105

摘要： The present invention provides a cleaning apparatus for cleaning an image bearing member, which has a cleaning member for cleaning a toner from the image bearing member by contacting with the image bearing member, and carrying device for carrying the toner cleaned by the cleaning member, in a direction of a generatrix of the image bearing member, the carrying device being vibrated, a distance between the carrying device and a portion of contact of the cleaning member with the image bearing member being smaller than 8 mm.

摘要翻译： 本发明提供了一种用于清洁图像承载部件的清洁装置，该清洁装置具有用于通过与图像承载部件接触从图像承载部件清洁调色剂的清洁部件和用于将由清洁部件清洁的调色剂携带的携带装置， 承载构件的母线的方向，承载装置振动，承载装置与清洁构件与图像承载构件的接触部分之间的距离小于8mm。

公开(公告)号：US07076182B2

公开(公告)日：2006-07-11

申请号：US10073395

申请日：2002-02-12

申请人： Keishi Osawa ,  Satoshi Tomiki

发明人： Keishi Osawa ,  Satoshi Tomiki

IPC分类号： G03G15/06

CPC分类号： G03G15/065 ,  G03G2215/00649 ,  G03G2215/0634

摘要： A developing apparatus includes a toner carrying member for carrying toner to a developing zone where the developing apparatus faces to an image bearing member; bias voltage applying means for applying to the toner carrying member a developing bias voltage for developing an electrostatic latent image formed on the image bearing member, wherein the developing bias voltage is in the form of a DC voltage biased with an AC voltage; wherein when a developing operation stops, rotation of the toner carrying member is stopped while rotating the image bearing member electrically charged, and then, the AC voltage is applied to the toner carrying member for a predetermined period, and thereafter, the AC voltage is stopped in a condition in which regular-charge toner is being urged from the toner carrying member toward the image bearing member.

摘要翻译： 显影装置包括用于将调色剂输送到显影装置面向图像承载部件的显影区域的调色剂承载部件; 偏置电压施加装置，用于将形成在图像承载部件上的静电潜像显影的显影偏压施加到调色剂承载部件，其中显影偏压为以AC电压偏置的直流电压的形式; 其中当显影操作停止时，在使图像承载部件充电转动的同时停止调色剂承载部件的旋转，然后将AC电压施加到调色剂承载部件一段预定的时间，然后停止AC电压 在常规充电调色剂被从调色剂承载构件推向图像承载部件的状态下。

公开(公告)号：US5621505A

公开(公告)日：1997-04-15

申请号：US624200

申请日：1996-04-03

申请人： Yoshiaki Kobayashi ,  Keishi Osawa ,  Yoshito Mizoguchi

发明人： Yoshiaki Kobayashi ,  Keishi Osawa ,  Yoshito Mizoguchi

IPC分类号： G03G15/08 ,  G03G15/09

CPC分类号： G03G15/0928 ,  G03G15/0808 ,  G03G15/09

摘要： A developing apparatus includes a developer carrying member for carrying a magnetic developer. The developer carrying member is provided with a plurality of magnetic poles. The apparatus also includes a regulating member for regulating the layer thickness of the developer on the developer carrying member, and an elastic rotatable member, disposed upstream of a developer regulating position of the regulating member with respect to a movement direction of the developer carrying member, for supplying the magnetic developer onto the developer carrying member. A surface of the elastic rotatable member is composed of unicellular foamed material.

摘要翻译： 显影装置包括用于承载磁性显影剂的显影剂承载构件。 显影剂承载构件设置有多个磁极。 该装置还包括用于调节显影剂承载构件上的显影剂的层厚度的调节构件和设置在调节构件的显影剂调节位置相对于显影剂承载构件的移动方向的上游的弹性可旋转构件， 用于将磁性显影剂供应到显影剂承载构件上。 弹性可旋转构件的表面由单细胞泡沫材料构成。

公开(公告)号：US5677099A

公开(公告)日：1997-10-14

申请号：US636495

申请日：1996-04-23

申请人： Keishi Osawa ,  Nobuyuki Ito ,  Hiroaki Tsuchiya

发明人： Keishi Osawa ,  Nobuyuki Ito ,  Hiroaki Tsuchiya

IPC分类号： G03G15/06 ,  G03G13/06

CPC分类号： G03G15/065

摘要： In a method of developing an electrostatic latent image formed on an image bearing member, wherein a developer carrying member carrying a layer of a developer is faced to the image bearing member and is supplied with an oscillating bias voltage to form an oscillating electric field in a developing zone, the improvement residing in: that a maximum Vu1max of a potential difference Vu1 between an image portion potential of the latent image and a potential of the developer carrying member in a transfer phase of the oscillating electric field, is larger than a maximum Vr1max of a potential difference Vr1 therebetween in a back-transfer phase thereof; that a maximum Vu2max of a potential difference Vu2 between a non-image portion potential of the latent image and a potential of the developer carrying member in the transfer phase of the oscillating electric field, is not less than a maximum Vr2max of a potential Vr2 therebetween in the back-transfer phase thereof; that integration Iu2, with time, of the potential difference Vu2 is not more than integration Ir2, with time, of the potential difference Vr2.

摘要翻译： 在形成在图像承载部件上的静电潜像显影的方法中，其中携带显影剂层的显影剂承载部件面对图像承载部件，并且被提供有振荡偏压以在其中形成振荡电场 显影区域的改进在于：在振荡电场的转移相位中，潜像的图像部分电位和显影剂承载部件的电位之间的电位差Vu1的最大Vu1max大于最大Vr1max 在其反转移相位中的电位差Vr1; 在振荡电场的转移相位中潜像的非图像部分电位与显影剂承载部件的电位之间的电位差Vu2的最大Vu2max不小于其间的电位Vr2的最大Vr2max 在其反转移阶段; 电势差Vu2的积分Iu2与电势差Vr2的时间不超过积分Ir2。

公开(公告)号：US5142332A

公开(公告)日：1992-08-25

申请号：US533586

申请日：1990-06-05

申请人： Keishi Osawa ,  Hideki Adachi

发明人： Keishi Osawa ,  Hideki Adachi

IPC分类号： G03G15/00 ,  G03G15/08

CPC分类号： G03G15/0849 ,  G03G15/0853 ,  G03G2215/00118 ,  Y10S706/90

摘要： The present invention relates to a developing device in an image forming apparatus which uses electrophotography, and more particularly, to a developing device which use fuzzy inferring to control a supply of a developer and provides an optimal developer supply even if a plurality of state quantities exist. Furthermore, the present invention relates to an image forming apparatus which adopts such a developing device using the fuzzy inferring.

摘要翻译： 本发明涉及一种使用电子照相术的图像形成装置中的显影装置，更具体地，涉及一种使用模糊推断来控制显影剂供应并且即使存在多个状态量也提供最佳显影剂供应的显影装置 。 此外，本发明涉及一种使用模糊推断的采用这种显影装置的图像形成装置。