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    • 51. 发明授权
    • Charger, image forming apparatus, and charge control method
    • 充电器,成像设备和充电控制方法
    • US07835655B2
    • 2010-11-16
    • US11954741
    • 2007-12-12
    • Masaru KobashiKoji MigitaMasashi NakatsuShinichi Kamoshida
    • Masaru KobashiKoji MigitaMasashi NakatsuShinichi Kamoshida
    • G03G15/02
    • G03G15/0266G03G15/0216
    • A charger includes: a first charging member that contacts an image carrier and a second charging member that contacts the image carrier downstream from the first charging member. At the time of image formation, a voltage higher than the discharge start voltage of the first charging member is applied to the first charging member and a voltage lower than the discharge start voltage of the second charging member and lower than the voltage applied to the first charging member is applied to the second charging member, and at the time when an image is not formed, a voltage lower than the discharge start voltage of the first charging member is applied to the first charging member and a voltage higher than the discharge start voltage of the second charging member and higher than the voltage applied to the first charging member is applied to the second charging member.
    • 充电器包括:接触图像载体的第一充电构件和与第一充电构件下游的图像载体接触的第二充电构件。 在图像形成时,比第一充电元件的放电开始电压高的电压被施加到第一充电元件并且低于第二充电元件的放电开始电压的电压低于施加到第一充电元件的电压 充电构件被施加到第二充电构件,并且在没有形成图像时,将低于第一充电构件的放电开始电压的电压施加到第一充电构件,并且施加高于放电开始电压的电压 并且高于施加到第一充电部件的电压施加到第二充电部件。
    • 53. 发明授权
    • Image forming apparatus, image forming method, and image forming system
    • 图像形成装置,图像形成方法和图像形成系统
    • US07751760B2
    • 2010-07-06
    • US11678939
    • 2007-02-26
    • Naoki KoikeHiroshi KatoShinichi Kamoshida
    • Naoki KoikeHiroshi KatoShinichi Kamoshida
    • G03G15/08
    • G03G15/0806
    • An image forming apparatus includes a developer bearing member for transporting developer to an opposing position opposing an image bearing member. Regularly-disposed concave sections are formed on a surface of the developer bearing member. An alternating voltage that includes a first voltage for moving developer from the developer bearing member toward the image bearing member, and a second voltage for moving developer from the image bearing member toward the developer bearing member is applied to the developer bearing member. A cycle period of the alternating voltage is larger than a minimum width of the concave section in a circumferential direction of the developer bearing member divided by a moving velocity of a surface of the rotating developer bearing member.
    • 图像形成装置包括用于将显影剂输送到与图像承载部件相对的相对位置的显影剂承载部件。 在显影剂承载部件的表面上形成有常规设置的凹形部分。 包括用于将显影剂从显影剂承载部件朝向图像承载部件移动的第一电压和用于将显影剂从图像承载部件朝向显影剂承载部件移动的第二电压的交流电压被施加到显影剂承载部件。 交变电压的循环周期大于显影剂承载部件的圆周方向上的凹部的最小宽度除以旋转的显影剂承载部件的表面的移动速度。
    • 54. 发明授权
    • Image forming apparatus, image forming method, and image forming system
    • 图像形成装置,图像形成方法和图像形成系统
    • US07729647B2
    • 2010-06-01
    • US11678449
    • 2007-02-23
    • Naoki KoikeHiroshi KatoShinichi Kamoshida
    • Naoki KoikeHiroshi KatoShinichi Kamoshida
    • G03G15/08
    • G03G15/065G03G15/0266G03G15/0818
    • An image forming apparatus includes a developer bearing member for transporting developer to an opposing position opposing an image bearing member. Regularly-disposed concave sections are formed on a surface of the developer bearing member. An alternating voltage that includes a first voltage for moving developer from the developer bearing member toward the image bearing member and a second voltage for moving developer from the image bearing member toward the developer bearing member is applied to the developer bearing member. A cycle period of the alternating voltage is smaller than or equal to a minimum width of the concave section in a circumferential direction of the developer bearing member divided by a moving velocity of a surface of the rotating developer bearing member.
    • 图像形成装置包括用于将显影剂输送到与图像承载部件相对的相对位置的显影剂承载部件。 在显影剂承载部件的表面上形成有常规设置的凹形部分。 包括用于将显影剂从显影剂承载构件朝向图像承载部件移动的第一电压和用于将显影剂从图像承载部件朝向显影剂承载部件移动的第二电压的交流电压被施加到显影剂承载部件。 交流电压的循环周期小于或等于显影剂承载部件的圆周方向上的凹部的最小宽度除以旋转的显影剂承载部件的表面的移动速度。
    • 55. 发明授权
    • Image forming apparatus
    • 图像形成装置
    • US07668483B2
    • 2010-02-23
    • US11781042
    • 2007-07-20
    • Shinichi KamoshidaTadahiro Mizutani
    • Shinichi KamoshidaTadahiro Mizutani
    • G03G15/00
    • G03G15/751G03G2215/00957G03G2215/02
    • Provided is an image forming apparatus which includes a cylindrical image carrier, on which at least an electrostatic latent image is formed, and a charge roller for non-contact charging the image carrier with a predetermined charge gap, and applies at least an alternating current (AC) voltage to the charge roller to non-contact charge the image carrier, wherein a predetermined number of partition members for partitioning an internal space of the image carrier into a plurality of sub-spaces are arranged at a central position of an axial direction of the image carrier or in the vicinity of the central position of the axial direction of the image carrier, in the image carrier.
    • 本发明提供一种图像形成装置,其包括:至少形成有静电潜像的圆柱形图像载体和用于以预定的充电间隙对图像载体进行非接触充电的充电辊,并施加至少一个交流电( AC)电压到充电辊以对图像载体进行非接触充电,其中预定数量的用于将图像载体的内部空间划分成多个子空间的分隔构件布置在轴向方向的中心位置 图像载体上或在图像载体的轴向方向的中心位置附近。
    • 59. 发明申请
    • Image Forming Apparatus, Image Forming Method, and Image Forming System
    • 图像形成装置,图像形成方法和图像形成系统
    • US20070212088A1
    • 2007-09-13
    • US11678449
    • 2007-02-23
    • Naoki KoikeHiroshi KatoShinichi Kamoshida
    • Naoki KoikeHiroshi KatoShinichi Kamoshida
    • G03G15/08
    • G03G15/065G03G15/0266G03G15/0818
    • An image forming apparatus including: an image bearing member for bearing a latent image, a developer bearing member for transporting developer to an opposing position opposing the image bearing member by rotating with developer being borne thereon, the developer bearing member having regularly-disposed concave sections formed on a surface thereof, and an alternating voltage applying section for applying to the developer bearing member an alternating voltage that includes a first voltage for moving developer from the developer bearing member toward the image bearing member and a second voltage for moving developer from the image bearing member toward the developer bearing member in order to develop the latent image using the developer that has been transported to the opposing position, wherein a cycle period of the alternating voltage is smaller than or equal to a value obtained by dividing a minimum width of the concave section in a circumferential direction of the developer bearing member by a moving velocity of a surface of the developer bearing member during rotation of the developer bearing member.
    • 一种图像形成装置,包括:用于承载潜像的图像承载部件,用于将显影剂输送到与图像承载部件相对的相对位置的显影剂承载部件,其中显影剂被承载在其上的转动,所述显影剂承载部件具有规则设置的凹形部分 形成在其表面上的交流电压施加部分和用于向显影剂承载部件施加包括用于将显影剂从显影剂承载部件朝向图像承载部件移动的第一电压的交流电压和用于从显影剂移动显影剂的第二电压的交流电压施加部分 承载构件朝向显影剂承载构件,以便使用已经被输送到相对位置的显影剂来显影潜像,其中交流电压的周期周期小于或等于通过将最小宽度除以 显影剂轴承m的圆周方向的凹部 通过显影剂承载部件的旋转期间的显影剂承载部件的表面的移动速度来填充。
    • 60. 发明授权
    • Image forming apparatus for forming an electrostatic latent image
    • 用于形成静电潜像的图像形成装置
    • US06750891B2
    • 2004-06-15
    • US10245708
    • 2002-09-18
    • Shinichi KamoshidaKenjiro Yoshioka
    • Shinichi KamoshidaKenjiro Yoshioka
    • B41J241
    • G03G21/1814G03G15/0216G03G15/1605G03G15/1675G03G15/325G03G2215/0119G03G2221/183
    • In an image forming apparatus of the present invention, the voltage of a chargeable layer 2b of an image carrier 2 at the portion to be in contact with writing electrodes 3b is adjusted by a surface potential adjusting member 8 which is disposed to be in contact with the chargeable layer 2b between the writing electrodes 3b and a transfer roller 6a. That is, even if the reverse charge injection occurs because the transfer voltage is applied to the transfer roller 6a and the transfer roller 6a is in contact with the chargeable layer 2b of the image carrier 2 at an interval between a printed paper 5 and the next paper 5, the potential of the chargeable layer 2b at the portion to be in contact with the writing electrodes 3b is adjusted not to exceed the withstand voltage of IC drivers 7 of the writing electrodes 3b by the surface potential adjusting member 8. Therefore, this prevents the writing head 3 from being broken, prevents the production of ghost image, and further inhibits voltage drop due to discharge between the image carrier and the writing electrodes during the process of writing a latent image, thereby preventing the electrostatic latent image from being in disorder.
    • 在本发明的图像形成装置中,图像载体2的与书写电极3b接触的部分的可充电层2b的电压由表面电位调节构件8调节,表面电位调节构件8被设置为与 写电极3b和转印辊6a之间的可充电层2b。 也就是说,即使发生反向电荷注入,因为转印电压被施加到转印辊6a,转印辊6a以与打印纸5和下一个纸张5之间的间隔与图像载体2的可充电层2b接触 纸5中,可调节与书写电极3b接触的部分处的可充电层2b的电位不超过表面电位调节构件8的写入电极3b的IC驱动器7的耐受电压。因此,这 防止写入头3被破坏,防止重影的产生,并且进一步抑制在写入潜像的过程期间在图像载体和书写电极之间的放电引起的电压降,从而防止静电潜像 紊乱。