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    • 4. 发明专利
    • Transfer blade
    • 转印叶片
    • JP2006064797A
    • 2006-03-09
    • JP2004244682
    • 2004-08-25
    • Bridgestone Corp株式会社ブリヂストン
    • NAKAJIMA TADASHI
    • G03G15/16
    • PROBLEM TO BE SOLVED: To provide a transfer blade that obtains stable elastic pressing force, has excellent balance between hardness and wear, and is supplied at a relatively low cost without causing a large cost increase.
      SOLUTION: The transfer blade transfers a toner image carried on the surface of a photoreceptor to a transfer material by applying charges of a predetermined level to a transfer material in contact with the transfer material in the transfer mechanism of an electrophotographic apparatus. The contact part of the transfer blade with at least the transfer material is formed of an elastic macromolecular foam body.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了提供获得稳定的弹性按压力的转印刀片,在硬度和磨损之间具有优异的平衡,并且以相对低的成本供给,而不会导致大的成本增加。 解决方案:转印刀片通过向电子照相设备的转印机构中的转印材料接触的转印材料施加预定水平的电荷,将感光体表面上承载的调色剂图像转印到转印材料上。 至少具有转印材料的转印刀片的接触部分由弹性高分子泡沫体形成。 版权所有(C)2006,JPO&NCIPI
    • 9. 发明专利
    • DEVELOPING DEVICE AND IMAGE FORMING DEVICE
    • JP2001042630A
    • 2001-02-16
    • JP21832799
    • 1999-08-02
    • BRIDGESTONE CORP
    • NAKAJIMA TADASHISAKATA JUNJIMURATA KAZUYAKAWAGOE TAKAHIRO
    • G03G15/08
    • PROBLEM TO BE SOLVED: To form a good image, even under serve environmental conditions and to maintain satisfactory image formation over a long time period, even if image formation is carried out repeatedly by using polyurethane as the principal constituent of each of a developer supporting roller, a developer supplying roller and a developer layer forming blade. SOLUTION: In this developing device, polyurethane is used as the principal constituent for each of a developer support roller, a developer supplying roller and a developer layer forming blade. The polyurethane of the developer carrier roller is a polyurethane elastic body, having 40-80 deg., Asker C hardness, the polyurethane of the developer supplying roller is polyurethane foam having 30-90 deg. Asker F hardness and the polyurethane of the developer layer forming blade is a polyurethane having 30-90 deg. JIS A hardness. The developer supporting roller is obtained, by forming an electrically conductive elastic layer 12 on the periphery of a shaft 11, having satisfactory electrical conductivity and further forming a coating layer 13 on the surface of the electrically conductive elastic layer 12. The electrically conductive elastic layer 12 comprises a polyurethane material provided with electrical conductivity by adding an electrically conductive agent.