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    • 2. 发明授权
    • Document density detector apparatus
    • 文件密度检测装置
    • US5012278A
    • 1991-04-30
    • US369946
    • 1989-06-22
    • Shuji YamadaHironori Ando
    • Shuji YamadaHironori Ando
    • G03G15/00G03G15/041
    • G03G15/5025G03G15/041
    • A document density detector apparatus to be used for an image forming apparatus in which a focal lens is disposed in an optical pass for guiding light reflected from the surface of a document, to the surface of a light receiving body, and a light sensor for detecting the density of the document is fixed outside of an area through which the light reflected from the surface of the document passes before illuminating a predetermined surface of the light receiving body, and in which an image of the document formed on the light receiving body may be enlarged or reduced at the desired magnification by moving the focal lens along the optical pass in the direction toward the document or toward the light receiving body. When an image forming mode is set at magnification which causes the focal lens to be moved to a position nearer to the document from the reference position, the focal lens is moved such that the density of a document is detected with the focal lens moved to the reference position, and when a mode for automatic detection of the density of a document is set before image forming, for an image forming apparatus capable of selecting the mode for automatic detection, or at any time for an image forming apparatus so arranged as to always execute automatic detection of the density of a document, before image forming.
    • 9. 发明授权
    • Technique for filling bearing clearance of fluid-dynamic-pressure bearing unit with oil
    • 用油填充流体动压轴承单元轴承间隙的技术
    • US07343682B2
    • 2008-03-18
    • US10711840
    • 2004-10-08
    • Shigeharu SumiJyoichi HiroshiHironori Ando
    • Shigeharu SumiJyoichi HiroshiHironori Ando
    • B21D53/10B65B43/42B67C3/00
    • F16C33/107F16C17/107F16C2370/12Y10T29/49636Y10T29/49639Y10T29/49702
    • Fluid-dynamic-pressure bearing manufacturing method for more efficient and fail-safe degassing of bearing oil. Method makes it possible to prevent the generation of air bubbles in the course of an oil-charging operation that amounts to a step following degassing, and to single out the causative source of air bubbles when their generation has been detected. At the same time oil that is under a reduced-pressure environment within an oil-storing vacuum chamber is vacuum-degassed, immersed within the oil a stirrer for agitating and degassing the oil is rotated by indirect drive means, and the oil after having been degassed is supplied to a vacuum chamber where a fluid-dynamic-pressure bearing unit is retained—which has been pumped down to a pressure below the pressure within the oil-storing vacuum chamber—and is charged into the bearing clearances by raising the internal pressure of the bearing-retaining vacuum chamber.
    • 流体动压轴承制造方法,用于轴承油更有效和故障安全脱气。 方法可以防止在脱气后的步骤中的充油操作过程中产生气泡,并且在检测到它们的产生时将气泡源单独排出。 同时,在储油真空室内处于减压环境下的油被真空脱气,浸入油中用于搅拌和脱气的搅拌器,通过间接驱动装置旋转油,并且油已经被 脱气被供给到真空室,其中保持流体动压轴承单元,该真空室已经被泵送到低于储油真空室内的压力的压力,并且通过提高内部压力而被加载到轴承间隙中 的轴承保持真空室。