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    • 4. 发明授权
    • Compliant doctor blade
    • 合格的刮刀
    • US5702812A
    • 1997-12-30
    • US623363
    • 1996-03-28
    • Peter W. BrackenJeffery R. BrenerMartin V. DiGirolamoSam E. Mullinix, Jr.Donald W. StaffordPeter E. Wallin
    • Peter W. BrackenJeffery R. BrenerMartin V. DiGirolamoSam E. Mullinix, Jr.Donald W. StaffordPeter E. Wallin
    • G03G15/08B32B5/02
    • G03G15/0812G03G2215/0636Y10T428/25
    • A compliant doctor blade having excellent toner metering capabilities is disclosed. The doctor blade includes a compliant laminate (3) having a resin film backing layer and carrying a binder which contains abrasive particles, such as silicon carbide particles, and a conducting means. In a preferred embodiment the conducting means are conductive carbon black particles which are contained in the resin binder which also includes the abrasive silicon carbide. The compliant laminate is supported on an aluminum bar (1). The bar has fastened to its bottom face a compliant foam layer (2) which includes on its bottom face a shim (10) having a stiffness of from about 0.5 to about 31.0 inches of deflection/inch of length/pounds of force. The laminate is bent under the foam layer and shim where it contacts the developer roller (6). The conductive layer remains conductive as it wears during use. In addition, this doctor blade minimizes toner buildup in the prenip area and provides effective and uniform metering of the toner on the developer roller.
    • 公开了具有优异的调色剂计量能力的兼容的刮刀。 刮刀包括具有树脂膜背衬层并承载包含诸如碳化硅颗粒的磨料颗粒的粘合剂的柔性层压板(3)和导电装置。 在优选实施例中,导电装置是包含在树脂粘合剂中的导电炭黑颗粒,其也包括磨料碳化硅。 柔性层压板支撑在铝条(1)上。 该杆已经在其底面上固定有顺应性泡沫层(2),该泡沫层的底面包括具有约0.5至约31.0英寸长度/磅/磅力的约0.5至约31.0英寸的刚度的垫片(10)。 层压体在泡沫层下方弯曲并与显影辊(6)接触地垫起。 导电层在使用过程中磨损时保持导电性。 此外,这种刮刀可以最大限度地减少预浸区域中的调色剂积聚,并可在显影辊上提供有效和均匀的调色剂计量。