PIEZOELECTRIC SENSORS FOR AUTOMATIC MEASUREMENT OF NIP WIDTH FOR FUSER MEMBER CONTROL
    1.
    发明申请
    PIEZOELECTRIC SENSORS FOR AUTOMATIC MEASUREMENT OF NIP WIDTH FOR FUSER MEMBER CONTROL 有权
    压电元件自动测量NIP宽度的压电传感器

    公开(公告)号:US20120180573A1

    公开(公告)日:2012-07-19

    申请号:US13008264

    申请日:2011-01-18

    IPC分类号: G01L1/00

    CPC分类号: G01L1/16 G01L5/0085

    摘要: According to aspects of the embodiments, an apparatus and method is proposed to detect nip width by use of at least one piezoelectric (PZT) crystal embedded into a roll at both the inboard and outboard ends. A piezoelectric (PZT) crystal generates a charge when subjected to a load and when the load is released. The PZT generate signal is channeled to the ends of the roller such as with a brush contact to be processed and used within machine control. The duration measure from application and released of the load is indicative of the dwell time and the amplitude PZT generate signal is a function of the pressure. The time and amplitude of the PZT signal can be calibrated to correlate directly to nip width or pressure and tracked in machine control.

    摘要翻译: 根据实施例的方面,提出了一种装置和方法,用于通过使用在内侧和外侧两端嵌入到辊中的至少一个压电(PZT)晶体来检测压区宽度。 压电(PZT)晶体在经受负载时和负载释放时产生电荷。 PZT生成信号被引导到辊的端部,例如用刷子接触件进行处理并在机器控制中使用。 来自应用和释放负载的持续时间测量指示停留时间,并且振幅PZT产生信号是压力的函数。 可以对PZT信号的时间和幅度进行校准,直接与压区宽度或压力相关,并在机器控制中跟踪。

    METHOD AND APPARATUS FOR EXTERNAL HEATER ROLL CLEANING
    2.
    发明申请
    METHOD AND APPARATUS FOR EXTERNAL HEATER ROLL CLEANING 有权
    用于外部加热器滚筒清洁的方法和装置

    公开(公告)号:US20120087702A1

    公开(公告)日:2012-04-12

    申请号:US12901068

    申请日:2010-10-08

    IPC分类号: G03G15/20

    CPC分类号: G03G15/2025

    摘要: According to aspects of the embodiments, there is provided an apparatus and method to maintain a clean and effective external heat roll surface in a printing system. The disclosed embodiment's uses a cleaning roller in contact with the external heat rollers designed to dislodge and displace contamination products that would otherwise accumulate on and in the external heat roller rough surface. The cleaning roller rotates concurrently with the heating roller so that the cleaning media cleans the roller from a picking action as opposed to a wiping motion. This provides maximum cleaning action with the undesirable wear and tear of the bristles that would occur with the conventional method of a wiping motion.

    摘要翻译: 根据实施例的方面,提供了一种在打印系统中保持清洁且有效的外部热辊表面的装置和方法。 所公开的实施例使用与外部加热辊接触的清洁辊,设计成移除和移动否则将积聚在外部加热辊粗糙表面上的污染产物。 清洁辊与加热辊同时旋转,使得清洁介质相对于擦拭运动而清洁辊与拾取动作。 这提供了最大的清洁作用,与传统的擦拭运动方法会发生的刷毛的不希望的磨损和撕裂。