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    • 2. 发明授权
    • Carrier and two-component developer composed of the carrier
    • 载体和双组分显影剂由载体组成
    • US08148041B2
    • 2012-04-03
    • US13012127
    • 2011-01-24
    • Makoto KobayashiYoshiaki KobayashiYoshiyasu Matsumoto
    • Makoto KobayashiYoshiaki KobayashiYoshiyasu Matsumoto
    • G03G9/107
    • G03G9/107G03G9/1075G03G9/113G03G9/1131G03G9/1133
    • An objective is to provide a carrier exhibiting stable charge providing ability in which sufficient charge can be provided to toner having a small particle diameter, and no image contamination such as fog caused by toner scattering via lack of electrification is generated. Another objective is to provide a carrier capable of maintaining a charging level of no interference for image formation even under the image forming condition at which a charging level for printing a number of prints continuously is difficult to be maintained. Disclosed is a carrier comprising a core particle made of ferrite possessing Mg and coated thereon, a resin, wherein the core particle has a ratio of the number of irregular-shaped core particles of at most 5%, based on the total number of core particles, and a surface of the core particle has grains having a maximum grain diameter of 2-5 μm.
    • 目的是提供一种具有稳定的电荷提供能力的载体,其中可以向具有小粒径的调色剂提供足够的电荷,并且不会产生由于通过不起电而由调色剂飞散引起的图像污染。 另一个目标是提供一种即使在连续打印多个打印件的打印水平难以维持的图像形成条件下,也能够保持对图像形成无干扰的充电水平的载体。 公开了一种载体,其包含由具有Mg并且涂覆在其上的铁氧体制成的核心颗粒,树脂,其中核心颗粒具有至多5%的不规则核心颗粒的数量的比率,基于芯颗粒的总数 ,核粒子的表面具有最大粒径为2-5μm的粒子。
    • 9. 发明授权
    • Image forming apparatus with toner amount selection feature
    • 具有调色剂量选择功能的图像形成装置
    • US07013096B2
    • 2006-03-14
    • US10765169
    • 2004-01-28
    • Ichiro OzawaYoshiaki KobayashiHideaki Suzuki
    • Ichiro OzawaYoshiaki KobayashiHideaki Suzuki
    • G03G15/08
    • G03G15/0849G03G15/0853
    • An image forming apparatus includes an image bearing member on which a latent image corresponding to image information is formed, a developing device for developing the latent image on said image bearing member with a developer including carrier and toner, a supplying device for supplying a developer to the developing device, a detector for detecting information corresponding to the magnetic permeability of the developer, and a selecting device for selecting modes on the basis of the information detected by the detecting device, wherein the selecting device can select a first control mode that controls the amount of the developer which is supplied to the developing device by the supplying device on the basis of the information detected by the detector, and a second control mode that controls the amount of the developer which is supplied to the developing device by the supplying device on the basis of the image information.
    • 图像形成装置包括:图像承载部件,其上形成有对应于图像信息的潜像;显影装置,用于利用包含载体和调色剂的显影剂在所述图像承载部件上显影潜像;供给装置,用于将显影剂供应到 显影装置,用于检测与显影剂的磁导率相对应的信息的检测器,以及基于由检测装置检测到的信息来选择模式的选择装置,其中选择装置可以选择控制显影装置的第一控制模式 基于由检测器检测到的信息由供给装置供应到显影装置的显影剂的量以及控制通过供给装置供给到显影装置的显影剂的量的第二控制模式 图像信息的基础。