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    • 31. 发明授权
    • Transfer device and image forming apparatus incorporating same
    • 转印装置和包含其的图像形成装置
    • US08781348B2
    • 2014-07-15
    • US13206957
    • 2011-08-10
    • Yasuhiko OginoHaruo IimuraShinji AokiKeigo Nakamura
    • Yasuhiko OginoHaruo IimuraShinji AokiKeigo Nakamura
    • G03G15/16
    • G03G15/1675G03G15/1605
    • A transfer device includes a controller that controls a transfer bias supply to cause a transfer bias to increase, between an image carrier and a first rotary body disposed opposite the image carrier, a potential of the first rotary body toward an opposite polarity to a charge polarity of toner of a toner image on the image carrier to be higher than a potential of the image carrier, and to change, on the basis of identified recording medium type, a returning peak value which is one of a peak value of positive polarity and a peak value of negative polarity of the transfer bias and which generates an electric field that causes the toner having moved to the recording medium from the image carrier to return to the image carrier from the recording medium in a transfer nip.
    • 传送装置包括控制器,其控制转印偏压供应,以使图像载体和与图像载体相对设置的第一旋转体之间的转印偏压增大,第一旋转体的电位朝向与极性相反的极性 使得图像载体上的调色剂图像的调色剂高于图像载体的电位,并且基于所识别的记录介质类型改变作为正极性峰值的返回峰值和 转印偏压的负极性的峰值,并且产生使得调色剂从图像载体移动到记录介质的电场,从而在转印辊隙中从记录介质返回到图像载体。
    • 33. 发明授权
    • Image forming apparatus and image forming method
    • 图像形成装置及图像形成方法
    • US07662530B2
    • 2010-02-16
    • US11425887
    • 2006-06-22
    • Haruo Iimura
    • Haruo Iimura
    • G03G9/00G03G13/16
    • G03G15/16G03G9/0819G03G9/0823G03G9/0827G03G9/0904G03G9/09716G03G2215/0119
    • Provided is an image forming apparatus containing a latent electrostatic image bearing member, a latent electrostatic image forming unit configured to form a latent electrostatic image on the latent electrostatic image bearing member, a developing unit configured to develop the latent electrostatic image using a toner to form a toner image, and a transferring unit configured to transfer the toner image on a recording medium, wherein a surface of the toner is coated with an external additive containing fine particles having an average particle diameter Da of 100 nm to 300 nm, and a value obtained by dividing an average F of non-electrostatic adhesion between the toner and the latent electrostatic image bearing member by a product of volume average particle diameter of the toner Dt and average particle diameter of the external additive Da, [F/(Dt×Da)] is 7.5×104 N/m2 or less.
    • 本发明提供一种包含静电潜像承载部件,静电潜像形成单元,其构造成在静电潜像承载部件上形成静电潜像的图像形成装置,配置为使用调色剂显影静电潜像的显影单元, 调色剂图像和被配置为将调色剂图像转印在记录介质上的转印单元,其中调色剂的表面涂覆有包含平均粒径Da为100nm至300nm的细颗粒的外部添加剂, 通过将调色剂和静电潜像承载部件之间的非静电粘合的平均F除以调色剂Dt的体积平均粒径和外部添加剂Da的平均粒径的乘积[F /(Dt×Da)] 为7.5×10 4 N / m 2以下。
    • 36. 发明授权
    • Image forming method and apparatus that detect an image density
    • 检测图像密度的图像形成方法和装置
    • US08165481B2
    • 2012-04-24
    • US12275677
    • 2008-11-21
    • Haruo Iimura
    • Haruo Iimura
    • G03G15/08
    • G03G15/5058G03G15/0131G03G2215/00059G03G2215/0888
    • An image forming method includes detecting a toner degradation state by detecting an image density on an electrostatic latent image carrier with high sensitivity and low cost. The degraded toner is processed based on the detected information, so that the waste toner can be reduced and a good image can be obtained. An image density of an image that is transferred with a predetermined reference electric field is detected in a first detecting step. An image density of an image that is transferred with an electric field that is smaller or greater than the reference electric field is detected in a second detecting step. A processing step of processing the degraded toner is performed on the basis of the image density detected by each of the detecting steps.
    • 图像形成方法包括通过以高灵敏度和低成本检测静电潜像载体上的图像浓度来检测调色剂降解状态。 基于检测到的信息处理降解的调色剂,从而可以减少废调色剂并且可以获得良好的图像。 在第一检测步骤中检测到以预定参考电场传送的图像的图像浓度。 在第二检测步骤中检测到具有小于或大于参考电场的电场传送的图像的图像浓度。 基于由每个检测步骤检测的图像浓度执行处理降解的调色剂的处理步骤。
    • 37. 发明授权
    • Image forming apparatus and image forming method capable of generating stable transfer electric field
    • 能够产生稳定的转印电场的图像形成装置和图像形成方法
    • US08045875B2
    • 2011-10-25
    • US12267677
    • 2008-11-10
    • Shinji AokiHaruo Iimura
    • Shinji AokiHaruo Iimura
    • G03G15/16
    • G03G15/1675G03G2215/0129G03G2215/1614
    • An image forming apparatus includes an image carrier for carrying a toner image and a transfer device. In the transfer device, a voltage applier applies a predetermined voltage to a transfer electric field generator. A potential measurement device measures a surface potential of the transfer electric field generator when a predetermined time period elapses after the voltage applier applies the predetermined voltage to the transfer electric field generator. A controller determines a transfer bias to be applied by at least one transfer member to the transfer electric field generator based on the measured surface potential of the transfer electric field generator. The at least one transfer member applies the transfer bias to the transfer electric field generator to generate a transfer electric field. The toner image is transferred from the image carrier onto a toner image receiver by the transfer electric field generated by the transfer electric field generator.
    • 图像形成装置包括用于承载调色剂图像的图像载体和转印装置。 在转印装置中,电压施加器将预定电压施加到转印电场发生器。 电压测量装置在电压施加器将预定电压施加到转印电场发生器之后经过预定时间段时测量转印电场发生器的表面电位。 控制器基于所测量的转移电场发生器的表面电位,确定由至少一个转移元件施加到转印电场发生器的转印偏压。 所述至少一个转印部件将转印偏压施加到转印电场发生器以产生转印电场。 调色剂图像通过由转印电场发生器产生的转印电场从图像载体转印到调色剂图像接收器上。
    • 40. 发明授权
    • Super-twisted nematic type liquid crystal display device
    • 超扭曲向列型液晶显示装置
    • US5184237A
    • 1993-02-02
    • US669576
    • 1991-03-14
    • Haruo IimuraYasuyuki TakiguchiAkihiko Kanemoto
    • Haruo IimuraYasuyuki TakiguchiAkihiko Kanemoto
    • G02F1/13363G02F1/1347G02F1/139
    • G02F1/133632G02F1/13363G02F1/13471G02F1/1397G02F2413/02G02F2413/105
    • A liquid crystal cell display device including a liquid crystal cell comprising a pair of substrates having transparent electrodes and aligning films, a liquid crystal composition with a positive dielectric anisotropy positioned between the substrates, major axes of the liquid crystal molecules being aligned nearly parallel in a plane parallel to the substrate when a field is applied and the liquid crystal molecules being twisted in an angle of 120.degree. to 360.degree. in a direction perpendicular to the substrate; a pair of polarizers positioned on opposite sides of the cell; and one or more birefringent layers positioned between the cell and at least one of the polarizers in which a maximum refractive index directions at a planes contacting the polarizer and the liquid crystal cell, are tilted with respect to a plane parallel to the substrate, angles made between each of the directions and the parallel plane are symmetrical one another with regard to a plane parallel to the substrate when angles made between the substrate and maximum refractive index directions positioned between the contacting planes of the birefringent layers are continuously distributed.
    • 一种液晶单元显示装置,包括具有透明电极和取向膜的一对基板的液晶单元,具有位于基板之间的正介电各向异性的液晶组合物,液晶分子的长轴几乎平行于 在施加场时平行于衬底的平面,并且液晶分子在垂直于衬底的方向上以120°至360°的角度扭转; 位于电池相对两侧的一对偏光片; 并且位于单元和至少一个偏振器之间的一个或多个双折射层,其中在与偏振器和液晶单元接触的平面处的最大折射率方向相对于平行于基板的平面倾斜, 在基板和位于双折射层的接触面之间的最大折射率方向之间的角度连续分布时,相对于平行于基板的平面彼此对称。