公开(公告)号：US08897681B2

公开(公告)日：2014-11-25

申请号：US13222344

申请日：2011-08-31

申请人： Tetsuro Hirota ,  Hideki Kosugi ,  Masaaki Yamada ,  Atsushi Kurokawa ,  Hideyasu Seki ,  Yasuyuki Ishii

发明人： Tetsuro Hirota ,  Hideki Kosugi ,  Masaaki Yamada ,  Atsushi Kurokawa ,  Hideyasu Seki ,  Yasuyuki Ishii

IPC分类号： G03G15/08 ,  G03G15/06

CPC分类号： G03G15/0818 ,  G03G2215/0651

摘要： An image forming apparatus includes a latent image carrier to carry a latent image, a developing device having a toner carrier with first and second electrodes to develop the latent image by transferring the toner to a developing region between the toner carrier and the latent image carrier while causing the toner to hop between the first and second electrodes and attaching the hopping toner to the latent image, a pulsed power supply to output a first periodic pulse voltage having a mean potential the same as a normal toner charge and a second periodic pulse voltage, a smoothing circuit to make the first periodic pulse voltage smooth to generate a direct voltage, and a toner layer thickness regulator member to regulate, on receiving the direct voltage, a thickness of the toner layer in a region between a toner supply position at which toner is supplied and the developing region.

摘要翻译： 图像形成装置包括：潜像载体，用于承载潜像;显影装置，具有带有第一和第二电极的调色剂载体，以通过将调色剂转印到调色剂载体和潜像载体之间的显影区域来显影潜像，同时 使调色剂在第一和第二电极之间跳跃并将跳跃调色剂附着到潜像上，脉冲电源输出具有与正常调色剂电荷和第二周期性脉冲电压相同的平均电位的第一周期性脉冲电压， 使第一周期性脉冲电压平滑以产生直流电压的平滑电路;以及调色剂层厚度调节部件，其在接收到直接电压时，调节调色剂供给位置之间的区域中的调色剂层的厚度， 被供应和显影区域。

公开(公告)号：US08824935B2

公开(公告)日：2014-09-02

申请号：US13225905

申请日：2011-09-06

申请人： Hideyasu Seki ,  Yasuyuki Ishii ,  Hideki Kosugi ,  Tetsuro Hirota ,  Masaaki Yamada ,  Atsushi Kurokawa

发明人： Hideyasu Seki ,  Yasuyuki Ishii ,  Hideki Kosugi ,  Tetsuro Hirota ,  Masaaki Yamada ,  Atsushi Kurokawa

IPC分类号： G03G15/08

CPC分类号： G03G15/065 ,  G03G15/0818 ,  G03G2215/0651

摘要： A development device includes a developer container; a rotary cylindrical developer carrier including an outer electrode including multiple electrode portions arranged in a circumferential direction of the developer carrier, an inner electrode provided on an inner circumferential side of the developer carrier from the outer electrode, an insulation layer disposed between the outer electrode and the inner electrode, and a surface layer; and a bias power source to apply a first bias voltage and a second bias voltage to the inner electrode and the outer electrode, respectively. The first bias power source causes an electrical potential difference that changes with time between the inner electrode and the outer electrode to cause the developer to hop on a circumferential surface of the developer carrier. At least one of the first bias voltage and the second bias voltage has a cyclic waveform in which pulse-on time is reduced.

摘要翻译： 显影装置包括显影剂容器; 包括外电极的旋转圆柱形显影剂载体，所述外电极包括沿所述显影剂载体的圆周方向布置的多个电极部分，从所述外电极设置在所述显影剂载体的内周侧上的内电极，设置在所述外电极与所述外电极之间的绝缘层， 内部电极和表面层; 以及分别向内电极和外电极施加第一偏置电压和第二偏置电压的偏置电源。 第一偏置电源引起在内部电极和外部电极之间随时间变化的电位差，以使显影剂在显影剂载体的圆周表面上跳跃。 第一偏置电压和第二偏置电压中的至少一个具有脉冲开启时间减少的循环波形。

公开(公告)号：US08948638B2

公开(公告)日：2015-02-03

申请号：US13215700

申请日：2011-08-23

申请人： Yuji Ishikura ,  Yasuyuki Ishii ,  Hideki Kosugi ,  Tetsuro Hirota ,  Masaaki Yamada ,  Yoshiko Ogawa ,  Atsushi Kurokawa ,  Hideyasu Seki ,  Masanori Horike ,  Shin Kayahara

发明人： Yuji Ishikura ,  Yasuyuki Ishii ,  Hideki Kosugi ,  Tetsuro Hirota ,  Masaaki Yamada ,  Yoshiko Ogawa ,  Atsushi Kurokawa ,  Hideyasu Seki ,  Masanori Horike ,  Shin Kayahara

IPC分类号： G03G15/06 ,  G03G15/08 ,  G03G15/01 ,  G03G15/16

CPC分类号： G03G15/0131 ,  G03G15/0189 ,  G03G15/1605

摘要： An image forming apparatus includes a latent image carrier; a latent image writer to write a latent image on the latent image carrier; a developing unit including a toner carrier having first and second electrodes insulated via an insulator member and a voltage applying unit to apply voltages to the first and second electrodes having a potential difference to generate first electric fields to cause the toner to hop from the toner carrier to the latent image carrier to develop a toner image; and a transfer unit to transfer the developed toner image to a transferring member. When alternating voltages having a same phase and same amplitude are applied to the first and second electrodes to form second electric fields between the latent image carrier and the toner carrier, the toner is discharged from the toner carrier to the latent image carrier in a toner discharge mode.

摘要翻译： 图像形成装置包括潜像载体; 潜像写入器，用于在潜像载体上写入潜像; 显影单元，包括具有通过绝缘体构件绝缘的第一和第二电极的调色剂载体和施加电压的电压施加到具有电位差的第一和第二电极，以产生第一电场，以使调色剂从调色剂载体 到潜像载体以形成调色剂图像; 以及将显影的调色剂图像转印到转印部件的转印单元。 当具有相同相位和相同振幅的交变电压施加到第一和第二电极以在潜像载体和调色剂载体之间形成第二电场时，调色剂在调色剂排出物中从调色剂载体排出到潜像载体 模式。

公开(公告)号：US20120057891A1

公开(公告)日：2012-03-08

申请号：US13215700

申请日：2011-08-23

申请人： Yuji ISHIKURA ,  Yasuyuki Ishii ,  Hideki Kosugi ,  Tetsuro Hirota ,  Masaaki Yamada ,  Yoshiko Ogawa ,  Atsushi Kurokawa ,  Hideyasu Seki ,  Masanori Horike ,  Shin Kayahara

发明人： Yuji ISHIKURA ,  Yasuyuki Ishii ,  Hideki Kosugi ,  Tetsuro Hirota ,  Masaaki Yamada ,  Yoshiko Ogawa ,  Atsushi Kurokawa ,  Hideyasu Seki ,  Masanori Horike ,  Shin Kayahara

IPC分类号： G03G15/08

CPC分类号： G03G15/0131 ,  G03G15/0189 ,  G03G15/1605

摘要： An image forming apparatus includes a latent image carrier; a latent image writer to write a latent image on the latent image carrier; a developing unit including a toner carrier having first and second electrodes insulated via an insulator member and a voltage applying unit to apply voltages to the first and second electrodes having a potential difference to generate first electric fields to cause the toner to hop from the toner carrier to the latent image carrier to develop a toner image; and a transfer unit to transfer the developed toner image to a transferring member. When alternating voltages having a same phase and same amplitude are applied to the first and second electrodes to form second electric fields between the latent image carrier and the toner carrier, the toner is discharged from the toner carrier to the latent image carrier in a toner discharge mode.

摘要翻译： 图像形成装置包括潜像载体; 潜像写入器，用于在潜像载体上写入潜像; 显影单元，包括具有通过绝缘体构件绝缘的第一和第二电极的调色剂载体和施加电压的电压施加到具有电位差的第一和第二电极，以产生第一电场，以使调色剂从调色剂载体 到潜像载体以形成调色剂图像; 以及将显影的调色剂图像转印到转印部件的转印单元。 当具有相同相位和相同振幅的交变电压施加到第一和第二电极以在潜像载体和调色剂载体之间形成第二电场时，调色剂在调色剂排出物中从调色剂载体排出到潜像载体 模式。

公开(公告)号：US08594540B2

公开(公告)日：2013-11-26

申请号：US13007104

申请日：2011-01-14

申请人： Tetsuro Hirota ,  Hideki Kosugi ,  Yoshiko Ogawa ,  Atsushi Kurokawa ,  Hideyasu Seki ,  Masaaki Yamada ,  Yuji Ishikura

发明人： Tetsuro Hirota ,  Hideki Kosugi ,  Yoshiko Ogawa ,  Atsushi Kurokawa ,  Hideyasu Seki ,  Masaaki Yamada ,  Yuji Ishikura

IPC分类号： G03G15/08

CPC分类号： G03G15/065 ,  G03G15/0808

摘要： A development device includes a toner carrier including first and second groups of electrodes, a toner supplier, and an electrical field generator. The electrical field generator includes a positive-phase pulse voltage generation circuit, a negative-phase pulse voltage generation circuit, a first DC power source for supplying a bias for setting a peak value of pulse voltages, a second DC power source to output a variable voltage having a polarity identical to a polarity of toner charge, a first diode having an anode connected to a lower potential side of the first DC power source and a cathode connected to an output terminal of the positive-phase pulse voltage generation circuit, and a second diode having an anode connected to the lower potential side of the first DC power source and a cathode connected to an output terminal of the negative-phase pulse voltage generation circuit.

摘要翻译： 显影装置包括包括第一和第二组电极的调色剂载体，调色剂供应器和电场发生器。 电场发生器包括正相脉冲电压产生电路，负相脉冲电压产生电路，用于提供用于设置脉冲电压峰值的偏置的第一直流电源，输出可变电压的第二直流电源 具有与调色剂电荷的极性相同的极性的电压，具有连接到第一直流电源的下电位侧的阳极的第一二极管和连接到正相脉冲电压产生电路的输出端的阴极，以及 第二二极管具有连接到第一直流电源的下电位侧的阳极和连接到负相脉冲电压产生电路的输出端的阴极。

公开(公告)号：US08929782B2

公开(公告)日：2015-01-06

申请号：US13731397

申请日：2012-12-31

申请人： Osamu Endou ,  Yasuyuki Ishii ,  Tetsuro Hirota ,  Yoshiko Ogawa ,  Atsushi Kurokawa ,  Yuuji Ishikura ,  Hideyasu Seki

发明人： Osamu Endou ,  Yasuyuki Ishii ,  Tetsuro Hirota ,  Yoshiko Ogawa ,  Atsushi Kurokawa ,  Yuuji Ishikura ,  Hideyasu Seki

IPC分类号： G03G15/08 ,  G03G21/18

CPC分类号： G03G15/0812 ,  G03G15/0818 ,  G03G21/18

摘要： A development device includes a developer bearer to carry by rotation developer to a development range facing a latent image bearer, and a developer regulator to adjust an amount of developer transported to the development range by the developer bearer. Multiple projections are formed in a surface of the developer bearer, and, in a direction in which the developer bearer rotates, a downstream end of each of the multiple projections is higher than an upstream end of the projection.

摘要翻译： 开发设备包括由旋转开发者携带到面向潜像承载的开发范围的开发者承载件，以及开发者调节器，以通过开发者承载来调整运送到开发范围的开发者的数量。 在显影剂载体的表面上形成多个突起，并且在显影剂载体旋转的方向上，多个突起中的每一个的下游端高于突起的上游端。

公开(公告)号：US20110064432A1

公开(公告)日：2011-03-17

申请号：US12879390

申请日：2010-09-10

申请人： Masanori Horike ,  Tetsuro Hirota ,  Atsushi Kurokawa ,  Hideki Kosugi ,  Masaaki Yamada ,  Yoshiko Ogawa ,  Yuji Ishikura

发明人： Masanori Horike ,  Tetsuro Hirota ,  Atsushi Kurokawa ,  Hideki Kosugi ,  Masaaki Yamada ,  Yoshiko Ogawa ,  Yuji Ishikura

IPC分类号： G03G15/08

CPC分类号： G03G15/065 ,  G03G15/0818 ,  G03G2215/00776 ,  G03G2215/0651

摘要： A disclosed developing device includes a toner carrying member having electrodes, a toner supply unit supplying the toner to the toner carrying member, and a hopping electric field generator unit generating electric field to cause the toner hopping on the toner carrying member by applying a pulse voltage to the electrodes. The hopping electric field generator unit includes a pulse voltage generator circuit generating the pulse voltage, a first direct-current power source supplying bias to the pulse voltage generator circuit for regulating a peak value of the pulse voltage, and a second direct-current power source having a same polarity with a toner charging polarity, and outputting a variable voltage level. The hopping electric field generator unit controls the peak value of the pulse voltage by changing an output of the first power source and a mean thereof by changing an output of the second power source.

摘要翻译： 所公开的显影装置包括具有电极的调色剂承载构件，向调色剂承载构件供应调色剂的调色剂供应单元和产生电场的跳跃电场发生器单元，以通过施加脉冲电压使调色剂跳动到调色剂承载构件上 到电极。 跳频电场发生器单元包括产生脉冲电压的脉冲电压发生器电路，向脉冲电压发生器电路提供偏置以调节脉冲电压的峰值的第一直流电源和第二直流电源 具有与调色剂充电极性相同的极性，并输出可变电压电平。 跳频电场发生器单元通过改变第二电源的输出来改变第一电源的输出及其平均值来控制脉冲电压的峰值。

公开(公告)号：US08433211B2

公开(公告)日：2013-04-30

申请号：US12879390

申请日：2010-09-10

申请人： Masanori Horike ,  Tetsuro Hirota ,  Atsushi Kurokawa ,  Hideki Kosugi ,  Masaaki Yamada ,  Yoshiko Ogawa ,  Yuji Ishikura

发明人： Masanori Horike ,  Tetsuro Hirota ,  Atsushi Kurokawa ,  Hideki Kosugi ,  Masaaki Yamada ,  Yoshiko Ogawa ,  Yuji Ishikura

IPC分类号： G03G15/06

CPC分类号： G03G15/065 ,  G03G15/0818 ,  G03G2215/00776 ,  G03G2215/0651

摘要： A disclosed developing device includes a toner carrying member having electrodes, a toner supply unit supplying the toner to the toner carrying member, and a hopping electric field generator unit generating electric field to cause the toner hopping on the toner carrying member by applying a pulse voltage to the electrodes. The hopping electric field generator unit includes a pulse voltage generator circuit generating the pulse voltage, a first direct-current power source supplying bias to the pulse voltage generator circuit for regulating a peak value of the pulse voltage, and a second direct-current power source having a same polarity with a toner charging polarity, and outputting a variable voltage level. The hopping electric field generator unit controls the peak value of the pulse voltage by changing an output of the first power source and a mean thereof by changing an output of the second power source.

摘要翻译： 所公开的显影装置包括具有电极的调色剂承载构件，向调色剂承载构件供应调色剂的调色剂供应单元和产生电场的跳跃电场发生器单元，以通过施加脉冲电压使调色剂跳动到调色剂承载构件上 到电极。 跳频电场发生器单元包括产生脉冲电压的脉冲电压发生器电路，向脉冲电压发生器电路提供偏置以调节脉冲电压的峰值的第一直流电源和第二直流电源 具有与调色剂充电极性相同的极性，并输出可变电压电平。 跳频电场发生器单元通过改变第二电源的输出来改变第一电源的输出及其平均值来控制脉冲电压的峰值。

公开(公告)号：US09158228B2

公开(公告)日：2015-10-13

申请号：US13608240

申请日：2012-09-10

申请人： Yoshiko Ogawa ,  Osamu Endou ,  Yasuyuki Ishii ,  Yuuji Ishikura ,  Hideyasu Seki ,  Tetsuro Hirota

发明人： Yoshiko Ogawa ,  Osamu Endou ,  Yasuyuki Ishii ,  Yuuji Ishikura ,  Hideyasu Seki ,  Tetsuro Hirota

IPC分类号： G03G15/08

CPC分类号： G03G15/0812 ,  G03G15/0808 ,  G03G15/0818

摘要： A development device includes a developer bearer to carry by rotation developer to a development range facing a latent image bearer, and a planar metal developer regulator to adjust an amount of developer carried by the developer bearer to the development range. The developer bearer includes a developer carrying range having surface unevenness, and the developer regulator includes a fixed end portion held by a regulator holder and a free end portion to contact a surface of the developer bearer.

摘要翻译： 显影装置包括由旋转显影剂携带到面向潜像载体的显影范围的显影剂载体，以及平面金属显影剂调节器，用于将由显影剂载体承载的显影剂的量调节至显影范围。 显影剂载体包括具有表面不均匀性的显影剂携带范围，并且显影剂调节器包括由调节器保持器保持的固定端部分和与显影剂载体的表面接触的自由端部分。

公开(公告)号：US20130071147A1

公开(公告)日：2013-03-21

申请号：US13608240

申请日：2012-09-10

申请人： Yoshiko OGAWA ,  Osamu Endou ,  Yasuyuki Ishii ,  Yuuji Ishikura ,  Hideyasu Seki ,  Tetsuro Hirota

发明人： Yoshiko OGAWA ,  Osamu Endou ,  Yasuyuki Ishii ,  Yuuji Ishikura ,  Hideyasu Seki ,  Tetsuro Hirota

IPC分类号： G03G15/08

CPC分类号： G03G15/0812 ,  G03G15/0808 ,  G03G15/0818

摘要： A development device includes a developer bearer to carry by rotation developer to a development range facing a latent image bearer, and a planar metal developer regulator to adjust an amount of developer carried by the developer bearer to the development range. The developer bearer includes a developer carrying range having surface unevenness, and the developer regulator includes a fixed end portion held by a regulator holder and a free end portion to contact a surface of the developer bearer.

摘要翻译： 显影装置包括由旋转显影剂携带到面向潜像载体的显影范围的显影剂载体，以及平面金属显影剂调节器，用于将由显影剂载体承载的显影剂的量调节至显影范围。 显影剂载体包括具有表面不均匀性的显影剂携带范围，并且显影剂调节器包括由调节器保持器保持的固定端部分和与显影剂载体的表面接触的自由端部分。