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    • 9. 发明授权
    • Dynamic end-seal for toner development unit
    • 碳粉开发单元的动态封口
    • US06487383B2
    • 2002-11-26
    • US09833888
    • 2001-04-12
    • John Andrew BuchananJarrett Clark GayneJason Paul HaleBenjamin Keith NewmanTom E Stickler
    • John Andrew BuchananJarrett Clark GayneJason Paul HaleBenjamin Keith NewmanTom E Stickler
    • G03G1508
    • G03G15/0817G03G2221/1648G03G2221/183
    • An article used to seal the interface between the developer roll, doctor blade and developer housing in a laser printer toner cartridge is described. The sealing member described in the present application performs static sealing between the components while the cartridge is idle and performs dynamic sealing while the toner cartridge is used for printing, keeping the sealing surfaces free from toner by actively pushing the toner back into the developer sump. The seal has a rotary seal portion which seals between the frame of the cartridge and the developer roll, and a blade seal portion which seals between the frame of the cartridge and the doctor blade. The rotary seal portion is biased toward the surface of the developer roll and incorporates, on its face adjacent to the developer roll, ridges which act to push the toner away from the edge of the developer roll in use. The blade seal portion is biased toward the doctor blade.
    • 描述了用于密封激光打印机墨粉盒中的显影辊,刮刀和显影剂外壳之间的界面的物品。 本申请中描述的密封构件在墨盒怠速时执行静电密封,并且当调色剂盒用于打印时执行动态密封,并通过主动地将调色剂推回到显影剂池中来保持密封表面没有调色剂。 密封件具有密封在盒的框架和显影辊之间的旋转密封部分,以及在盒的框架和刮刀之间密封的叶片密封部分。 旋转密封部分朝向显影辊的表面偏压,并且在其与显影辊相邻的表面上包括用于在使用中将调色剂推离显影辊边缘的脊。 刀片密封部分朝向刮刀偏置。