公开(公告)号：US20060127116A1

公开(公告)日：2006-06-15

申请号：US11352213

申请日：2006-02-13

申请人： Hiromi Ogiyama ,  Kohki Katoh ,  Akihiro Sugino ,  Mitsuru Takahashi ,  Katsuya Kawagoe ,  Yuuji Sawai

发明人： Hiromi Ogiyama ,  Kohki Katoh ,  Akihiro Sugino ,  Mitsuru Takahashi ,  Katsuya Kawagoe ,  Yuuji Sawai

IPC分类号： G03G15/16

CPC分类号： G03G15/167

摘要： A transfer device transfers a visual image from an image carrier to a recording medium. The transfer device includes a first transfer element that moves and receives the visual image from the image carrier on a first surface of the first transfer element, a second transfer element provided opposite to the first surface of the first transfer element to pinch and convey the recording medium through a secondary transfer nip part, a facing roller provided on a second surface of the first transfer element opposite to the first surface thereof, and a constant-current power supply that applies an electric current voltage to a core metal of the facing roller to transfer the visual image from the first transfer element to the recording medium. The electric current voltage applied to the core metal has a polarity equal to a polarity of the visual image and is subjected to a constant-current control.

公开(公告)号：US06741821B2

公开(公告)日：2004-05-25

申请号：US10178685

申请日：2002-06-25

申请人： Akihiro Sugino ,  Yuuji Sawai ,  Mitsuru Takahashi ,  Kohki Katoh ,  Katsuya Kawagoe ,  Hiromi Ogiyama ,  Takahiro Tamiya

发明人： Akihiro Sugino ,  Yuuji Sawai ,  Mitsuru Takahashi ,  Kohki Katoh ,  Katsuya Kawagoe ,  Hiromi Ogiyama ,  Takahiro Tamiya

IPC分类号： G03G2116

CPC分类号： G03G15/0194 ,  G03G2215/00962 ,  G03G2215/0119 ,  G03G2221/183

摘要： An image forming apparatus comprises a latent image support which supports an electrostatic latent image. A charging unit charges a surface of the image support. A latent image formation unit forms an electrostatic latent image on the image support surface. A developing unit develops the latent image with toner to form a toner image. A transfer unit transfers the toner image from the image support to a recording medium. A transport unit transports the recording medium so that the image support surface is countered to a surface of the recording medium. The surface of the image support has a coefficient of friction ranging from 0.1 to 0.7 according to Euler belt method, and a difference between a speed of the image support and a speed of the recording medium is below 1%, and the image support has an outermost surface containing a filler and a binder resin.

摘要翻译： 图像形成装置包括支持静电潜像的潜像载体。 充电单元对图像支撑体的表面充电。 潜像形成单元在图像载体表面上形成静电潜像。 显影单元用调色剂显影潜像以形成调色剂图像。 转印单元将调色剂图像从图像载体转印到记录介质。 传送单元传送记录介质，使得图像支撑表面被对抗到记录介质的表面。 图像支撑体的表面根据欧拉带法具有0.1至0.7的摩擦系数，并且图像支持的速度与记录介质的速度之间的差异低于1％，并且图像支持具有 最外表面含有填料和粘结剂树脂。

公开(公告)号：US07346287B2

公开(公告)日：2008-03-18

申请号：US11352213

申请日：2006-02-13

申请人： Hiromi Ogiyama ,  Kohki Katoh ,  Akihiro Sugino ,  Mitsuru Takahashi ,  Katsuya Kawagoe ,  Yuuji Sawai

发明人： Hiromi Ogiyama ,  Kohki Katoh ,  Akihiro Sugino ,  Mitsuru Takahashi ,  Katsuya Kawagoe ,  Yuuji Sawai

IPC分类号： G03G15/01

CPC分类号： G03G15/167

摘要： A transfer device transfers a visual image from an image carrier to a recording medium. The transfer device includes a first transfer element that moves and receives the visual image from the image carrier on a first surface of the first transfer element, a second transfer element provided opposite to the first surface of the first transfer element to pinch and convey the recording medium through a secondary transfer nip part, a facing roller provided on a second surface of the first transfer element opposite to the first surface thereof, and a constant-current power supply that applies an electric current voltage to a core metal of the facing roller to transfer the visual image from the first transfer element to the recording medium. The electric current voltage applied to the core metal has a polarity equal to a polarity of the visual image and is subjected to a constant-current control.

摘要翻译： 传送设备将视觉图像从图像载体传送到记录介质。 转印装置包括：第一转印元件，其在第一转印元件的第一表面上从图像载体移动和接收视觉图像;第二转印元件，设置成与第一转印元件的第一表面相对，以夹持并传送记录 介质通过二次转印夹持部分，设置在第一转印元件的与其第一表面相对的第二表面上的面对辊以及将电流电压施加到对置辊的芯金属上的恒流电源， 将视觉图像从第一传送元件传送到记录介质。 施加到芯金属的电流电压具有与视觉图像的极性相同的极性，并且进行恒定电流控制。

公开(公告)号：US06829450B2

公开(公告)日：2004-12-07

申请号：US10614828

申请日：2003-07-09

申请人： Takahiro Tamiya ,  Akihiro Sugino ,  Hiromi Ogiyama ,  Katsuya Kawagoe ,  Kohki Katoh ,  Mitsuru Takahashi ,  Yuuji Sawai

发明人： Takahiro Tamiya ,  Akihiro Sugino ,  Hiromi Ogiyama ,  Katsuya Kawagoe ,  Kohki Katoh ,  Mitsuru Takahashi ,  Yuuji Sawai

IPC分类号： G03G1516

CPC分类号： G03G15/0131 ,  G03G2215/0119

摘要： In an electrophotographic image forming apparatus of the type including a plurality of image carriers arranged along an image transfer belt and an image transferring device configured to transfer toner images of different colors from the image carriers to a sheet being conveyed by an image transfer belt or by way of the image transfer belt by applying a bias to the belt, a bias applying method of the present invention can measure a current leaking between a plurality of high-tension power supply sections or to the ends thereof as AC resistances between respective terminals and therefore to accurately measure the leak currents of DC components. Therefore, when relatively high DC components are selected, a difference in current between a plurality of power supply sections can be maintained constant.

摘要翻译： 在包括沿着图像转印带布置的多个图像载体的类型的电子照相图像形成装置中，以及图像转印装置，其被配置为将不同颜色的调色剂图像从图像载体转印到由图像转印带或由图像转印带传送的纸张 通过对带施加偏压，图像转印带的方式，本发明的偏压施加方法可以测量多个高压电源部分之间或其端部之间的电流作为各端子之间的交流电阻，因此 以准确测量直流分量的漏电流。 因此，当选择相对高的DC分量时，可以将多个电源部之间的电流差保持恒定。

公开(公告)号：US06785500B2

公开(公告)日：2004-08-31

申请号：US10193219

申请日：2002-07-12

申请人： Mitsuru Takahashi ,  Yuuji Sawai ,  Hiromi Ogiyama ,  Katsuya Kawagoe ,  Akihiro Sugino ,  Kohki Katoh

发明人： Mitsuru Takahashi ,  Yuuji Sawai ,  Hiromi Ogiyama ,  Katsuya Kawagoe ,  Akihiro Sugino ,  Kohki Katoh

IPC分类号： G03G1516

CPC分类号： G03G15/162 ,  G03G15/161 ,  G03G2215/0119 ,  G03G2215/1652 ,  G03G2215/1661

摘要： An image forming apparatus of the present invention includes a cleaning device for cleaning an intermediate image transfer body. A cleaning blade included in the image transfer body is formed of fluorocarbon resin or a thin layer of fluorocarbon resin is formed on the surface of the intermediate image transfer body. Further, wax is coated on the intermediate image transfer body or wax or lubricant powder is contained in toner. A moving mechanism holds the cleaning blade spaced from the intermediate image transfer body at least when image formation is not under way.

摘要翻译： 本发明的图像形成装置包括清洁中间图像转印体的清洁装置。 包含在图像转印体中的清洁刮板由氟碳树脂形成，或者在中间图像转印体的表面上形成氟碳树脂薄层。 此外，蜡涂覆在中间图像转印体上或蜡或者润滑剂粉末被包含在调色剂中。 至少当图像形成不进行时，移动机构将清洁刮板保持与中间图像传送体间隔开。

公开(公告)号：US06618565B2

公开(公告)日：2003-09-09

申请号：US10200178

申请日：2002-07-23

申请人： Takahiro Tamiya ,  Akihiro Sugino ,  Hiromi Ogiyama ,  Katsuya Kawagoe ,  Kohki Katoh ,  Mitsuru Takahashi ,  Yuuji Sawai

发明人： Takahiro Tamiya ,  Akihiro Sugino ,  Hiromi Ogiyama ,  Katsuya Kawagoe ,  Kohki Katoh ,  Mitsuru Takahashi ,  Yuuji Sawai

IPC分类号： G03G1516

CPC分类号： G03G15/0131 ,  G03G2215/0119

摘要： In an electrophotographic image forming apparatus of the type including a plurality of image carriers arranged along an image transfer belt and an image transferring device configured to transfer toner images of different colors from the image carriers to a sheet being conveyed by an image transfer belt or by way of the image transfer belt by applying a bias to the belt, a bias applying method of the present invention can measure a current leaking between a plurality of high-tension power supply sections or to the ends thereof as AC resistances between respective terminals and therefore to accurately measure the leak currents of DC components. Therefore, when relatively high DC components are selected, a difference in current between a plurality of power supply sections can be maintained constant.

摘要翻译： 在包括沿着图像转印带布置的多个图像载体的类型的电子照相图像形成装置中，以及图像转印装置，其被配置为将不同颜色的调色剂图像从图像载体转印到由图像转印带或由图像转印带传送的纸张 通过对带施加偏压，图像转印带的方式，本发明的偏压施加方法可以测量多个高压电源部分之间或其端部之间的电流作为各端子之间的交流电阻，因此 以准确测量直流分量的漏电流。 因此，当选择相对高的DC分量时，可以将多个电源部之间的电流差保持恒定。

公开(公告)号：US06697595B2

公开(公告)日：2004-02-24

申请号：US09947391

申请日：2001-09-07

申请人： Katsuya Kawagoe ,  Toshiaki Motohashi ,  Yuuji Sawai ,  Shin Kayahara ,  Ryuta Takeichi ,  Mitsuru Takahashi ,  Hiroshi Ono ,  Hiromi Ogiyama

发明人： Katsuya Kawagoe ,  Toshiaki Motohashi ,  Yuuji Sawai ,  Shin Kayahara ,  Ryuta Takeichi ,  Mitsuru Takahashi ,  Hiroshi Ono ,  Hiromi Ogiyama

IPC分类号： G03G1516

CPC分类号： G03G15/1605 ,  G03G2215/1623 ,  G03G2215/1661

摘要： An image forming apparatus including a belt guide member fixedly provided at an upstream side of a nip formed between a roller and a transfer roller so the belt guide member protrudes an image bearing belt such that the belt is substantially parallel with a conveying direction of a transfer medium.

摘要翻译： 一种图像形成装置，包括固定地设置在辊和转印辊之间的辊隙的上游侧的带引导构件，使得带引导构件突出图像承载带，使得带基本上平行于转印的输送方向 中。

公开(公告)号：US06901234B2

公开(公告)日：2005-05-31

申请号：US10389979

申请日：2003-03-18

申请人： Hiromi Ogiyama ,  Katsuya Kawagoe ,  Shin Kayahara ,  Ryuuichi Minbu ,  Yuuji Sawai ,  Mitsuru Takahashi ,  Satoru Uchida ,  Hideki Kamiyama

发明人： Hiromi Ogiyama ,  Katsuya Kawagoe ,  Shin Kayahara ,  Ryuuichi Minbu ,  Yuuji Sawai ,  Mitsuru Takahashi ,  Satoru Uchida ,  Hideki Kamiyama

IPC分类号： G03G15/16

CPC分类号： G03G15/1675 ,  G03G2215/1623

摘要： An image forming apparatus of the present invention includes an intermediate image transfer belt passed over a plurality of support members and movable while carrying a toner image of preselected polarity transferred thereto. An electrode member contacts the inside surface of the belt and is applied with a preselected voltage for transferring the toner image from the belt to a recording medium. A contact member with high electric resistance contacts the belt at a position adjacent the electrode member and includes an insulating layer thereon.

摘要翻译： 本发明的图像形成装置包括通过多个支撑构件的中间图像转印带，并且在承载转印有预选极性的调色剂图像的同时可移动。 电极构件接触带的内表面并且施加预定电压以将调色剂图像从带传送到记录介质。 具有高电阻的接触构件在与电极构件相邻的位置处接触带，并且在其上包括绝缘层。

公开(公告)号：US07003238B2

公开(公告)日：2006-02-21

申请号：US10700486

申请日：2003-11-05

申请人： Ken Yoshida ,  Yuuji Sawai ,  Hiromi Ogiyama ,  Atsushi Takehara ,  Shin Kayahara ,  Shinji Kato ,  Yoshihiro Fujiwara

发明人： Ken Yoshida ,  Yuuji Sawai ,  Hiromi Ogiyama ,  Atsushi Takehara ,  Shin Kayahara ,  Shinji Kato ,  Yoshihiro Fujiwara

IPC分类号： G03G15/01 ,  G03G15/16

CPC分类号： G03G15/1605 ,  G03G2215/0119 ,  G03G2215/0164

摘要： An intermediate image transfer type of image forming apparatus of the present invention includes an image carrier, an intermediate image transfer body, primary image transferring means for transferring a toner image from the image carrier to the intermediate image transfer body, and secondary image transferring means for transferring the toner image from the intermediate image transfer body to a sheet. When the surface resistivity of the intermediate image transfer body is measured by a method that repeatedly applies a voltage of 200 V for 60 seconds to the intermediate image transfer body and grounds the intermediate image transfer body for 10 seconds 1,000 consecutive times, a difference in absolute value between the logarithm of the first time of measurement and that of the thousandth time of measurement is 0.5 log Ω/□ or below.

摘要翻译： 本发明的中间图像转印型图像形成装置包括图像载体，中间图像转印体，用于将调色剂图像从图像载体转印到中间图像转印体的原色图像转印装置，以及二次图像转印装置， 将调色剂图像从中间图像转印体转印到片材上。 当通过对中间图像转印体重复施加200V的电压60秒的方法测量中间图像转印体的表面电阻率，并将中间图像转印体连续10秒连续10秒时，绝对值的差异 第一次测量的对数与第千次测量的对数之间的值为0.5logΩ/□或更低。

公开(公告)号：US20050013636A1

公开(公告)日：2005-01-20

申请号：US10861440

申请日：2004-06-07

申请人： Yuuji Sawai ,  Yoshihiro Fujiwara ,  Shin Kayahara ,  Hiromi Ogiyama ,  Atsushi Takehara ,  Ken Yoshida ,  Shinji Kato

发明人： Yuuji Sawai ,  Yoshihiro Fujiwara ,  Shin Kayahara ,  Hiromi Ogiyama ,  Atsushi Takehara ,  Ken Yoshida ,  Shinji Kato

IPC分类号： G01R27/02 ,  G03G15/01 ,  G03G15/16

CPC分类号： G03G15/1685

摘要： A method for evaluating an electric resistance member of an image forming apparatus which can maintain good image quality, without the occurrence of transfer defects such as insufficient transfer, even in a long-term use. An intermediate transfer belt of the image forming apparatus, which is evaluated based on a fluctuation characteristic of the resistivity in a period of continuous voltage application, is used. The absolute value Δρs of the amount of changes in the surface resistivity of the intermediate transfer belt within 2 seconds to 100 seconds from the beginning of voltage application is 0.3 [Log(Ω/)] or less, when the surface resistivity ρs is measured by applying a voltage of 500 V. The absolute value Δρv of the amount of changes in the volume resistivity within 2 seconds to 100 seconds from the beginning of voltage application is 0.5 [Log(Ω·cm)] or less, when the volume resistivity ρv is measured by applying a voltage of 200 V.

摘要翻译： 一种图像形成装置的电阻部件的评价方法，即使在长期使用中也能够保持良好的图像质量，而不会发生转印不良等转印缺陷。 使用基于连续电压施加期间的电阻率的波动特性来评价的图像形成装置的中间转印带。 从施加电压开始的2秒至100秒内，中间转印带的表面电阻率变化量的绝对值Deltarhos为0.3 [Log（Ω/定制字符文件=“US20050013636A1-20050120-P00900）”。 当通过施加500V的电压测量表面电阻率rhos时，TIF“wi =”20“he =”20“id =”custom-character-00001“/>）]或更小。量的绝对值Deltarhov 当通过施加200V的电压测量体积电阻率rhov时，从施加电压开始的2秒至100秒内的体积电阻率的变化为0.5 [Log（Ω·cm）]以下。