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    • 41. 发明授权
    • Image forming apparatus having contact charger wtih superposed AC/DC bias
    • 具有接触充电器的叠加AC / DC偏压的图像形成装置
    • US5508788A
    • 1996-04-16
    • US291701
    • 1994-08-16
    • Takeshi WatanabeMinoru Yoshida
    • Takeshi WatanabeMinoru Yoshida
    • G03G15/02G03G21/00
    • G03G15/0266G03G15/0216
    • An image forming apparatus including a contact charger for charging the surface of an image carrying body, a latent image forming unit for forming an electrostatic latent image on the charged image carrying body, a developing device for developing the latent image to form a visible image, a power source for applying a DC/AC superposed bias to the contact charger, a detector for detecting the current value of the superposed bias applied to the contact charger, and a device for controlling the AC:DC voltage ratio of the superposed bias applied to the contact charger, in accordance with a detected value from the detector. The AC bias is between 150 to 400 V while the DC bias is set between 500 to 800V.
    • 一种图像形成装置,包括用于对图像承载体的表面充电的接触充电器,用于在带电图像载体上形成静电潜像的潜像形成单元,用于显影潜像以形成可见图像的显影装置, 用于向接触充电器施加DC / AC叠加偏压的电源,用于检测施加到接触充电器的叠加偏置的电流值的检测器,以及用于控制施加到接触充电器的叠加偏置的AC:DC电压比的装置 接触式充电器,根据来自检测器的检测值。 AC偏压在150至400 V之间,而DC偏置设置在500至800V之间。
    • 42. 发明申请
    • IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
    • 图像形成装置和图像形成方法
    • US20110069996A1
    • 2011-03-24
    • US12954048
    • 2010-11-24
    • Takeshi WatanabeMinoru YoshidaMasahi Takahashi
    • Takeshi WatanabeMinoru YoshidaMasahi Takahashi
    • G03G15/08G03G15/01
    • G03G15/0893G03G15/0851G03G15/0879G03G15/162G03G2215/0132G03G2215/0607G03G2215/066G03G2215/1623
    • A technology for controlling the generation of damages of a photoconductive surface caused due to the attachment of a carrier to a photoconductor in an image forming apparatus using a two-component developing agent is provided. An image forming apparatus is configured to include an intermediate transfer body having prescribed elasticity on a transfer surface onto which a toner image is transferred; plural image carriers which transfer a toner image onto the transfer surface and which are disposed along a movement direction of the transfer surface of the intermediate transfer body; plural development sections which form toner images having a different color from each other with respect to the plural image carriers by using a two-component developing agent made of a toner and a carrier; and developing agent replenishment sections which replenish a toner and a carrier in the development sections.
    • 提供了一种用于控制由于在使用双组分显影剂的图像形成装置中将载体附着到感光体而导致的光电导表面损伤的产生的技术。 图像形成装置被配置为在转印表面上包含具有规定弹性的中间转印体,调色剂图像被转印到转印面上; 多个图像载体,其将调色剂图像转印到转印表面上并沿着中间转印体的转印表面的移动方向设置; 多个显影部分,通过使用由调色剂和载体构成的双组分显影剂,相对于多个图像载体形成彼此不同的颜色的调色剂图像; 以及在显影部中补充调色剂和载体的显影剂补充部。
    • 43. 发明申请
    • IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
    • 图像形成装置和图像形成方法
    • US20110008078A1
    • 2011-01-13
    • US12826046
    • 2010-06-29
    • Masashi TakahashiMinoru YoshidaTakeshi Watanabe
    • Masashi TakahashiMinoru YoshidaTakeshi Watanabe
    • G03G15/01
    • G03G15/162G03G15/0136G03G15/0194
    • According to one embodiment, an image forming apparatus includes a first image forming unit, a second image forming unit, and an intermediate transfer medium. The first image forming unit includes at least one image bearing member on which a first image is formed. The second image forming unit includes an image bearing member on which a second image is formed. The first image is primarily transferred onto the intermediate transfer medium. When the intermediate transfer medium is moved to a first position, the first image is secondarily transferred onto the image bearing member of the second image forming unit and tertiarily transferred onto a transfer medium from the image bearing member. When the intermediate transfer medium is moved to a second position, the second image is transferred onto the transfer medium from the image bearing member of the second image forming unit.
    • 根据一个实施例,图像形成装置包括第一图像形成单元,第二图像形成单元和中间转印介质。 第一图像形成单元包括形成有第一图像的至少一个图像承载部件。 第二图像形成单元包括形成有第二图像的图像承载部件。 第一图像主要转印到中间转印介质上。 当中间转印介质移动到第一位置时,将第一图像二次转印到第二图像形成单元的图像承载部件上,并从图像承载部件三次转印到转印介质上。 当中间转印介质移动到第二位置时,第二图像从第二图像形成单元的图像承载部件转印到转印介质上。
    • 45. 发明申请
    • IMAGE FORMING APPARATUS
    • 图像形成装置
    • US20090263166A1
    • 2009-10-22
    • US12424978
    • 2009-04-16
    • Minoru YoshidaTakeshi WatanabeMasashi Takahashi
    • Minoru YoshidaTakeshi WatanabeMasashi Takahashi
    • G03G15/01
    • G03G15/1605G03G15/0131G03G2215/0132
    • An image forming apparatus includes a plurality of image carrier members each configured to carry a latent image, a plurality of electrostatic chargers each configured to charge the image carrier member uniformly, a plurality of developing devices each configured to develop the latent image formed to the image carrier member by toner, a plurality of cleaners each configured to remove the toner remaining on the carrier member, an intermediate transfer member having a non-electroconductive material on which a developed image is transferred by one of the image carrier members and then another developed image is transferred over the developed image by another image carrier member and a plurality of transfer rollers each provided so as to oppose the image carrier member with the intermediary of the intermediate transfer member.
    • 图像形成装置包括:多个图像载体构件,每个图像载体构件被配置为携带潜像;多个静电充电器,每个静电充电器均被构造成均匀地对图像载体构件充电;多个显影装置,每个显影装置被构造成显影形成于图像上的潜像 载体构件,多个清洁器,每个清洁器被构造成去除残留在载体构件上的调色剂;中间转印构件,其具有非导电材料,显影图像由其中一个图像载体构件传递到其上,然后是另一个显影图像 通过另一图像载体构件和多个转印辊在显影图像上转印,每个转印辊设置成与介质中间转印构件相对的图像载体构件。
    • 47. 发明申请
    • IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
    • 图像形成装置和图像形成方法
    • US20080166159A1
    • 2008-07-10
    • US11621814
    • 2007-01-10
    • Takeshi WatanabeMinoru YoshidaMasashi Takahashi
    • Takeshi WatanabeMinoru YoshidaMasashi Takahashi
    • G03G15/01G03G15/16
    • G03G15/0194G03G2215/0132
    • A technology capable of suppressing the generation of transfer scattering of a toner image on an intermediate transfer body and contributing to an improvement in image quality in an image forming apparatus employing an intermediate transfer system is provided. An image forming apparatus is configured to include an intermediate transfer body to which a toner imager is transferred from an image carrier, the intermediate transfer body having an elastic surface layer having a center point average roughness of 0.1 times or more of a volume average particle size of a used toner and a ten-point average roughness of not more than the volume average particle size of the used toner; and a development section which develops an electrostatic latent image on the image carrier by using a toner having a shape factor SF-1 in the range of from 100 to 130 and a shape factor SF-2 in the range of from 100 to 140.
    • 提供了能够抑制在中间转印体上产生调色剂图像的转印散射并有助于提高使用中间转印体系的图像形成装置中的图像质量的技术。 图像形成装置被配置为包括中间转印体,调色剂成像器从图像载体转印到该中间转印体上,中间转印体具有中心点平均粗糙度为体积平均粒径的0.1倍以上的弹性表面层 的二氧化碳调色剂和十点平均粗糙度不大于所使用的调色剂的体积平均粒度; 以及显影部,其通过使用形状系数SF-1在100至130的范围内的形状系数SF-2和100至140的范围内的形状因子SF-2的调色剂来使图像载体上的静电潜像显影。