Piezoelectric sensors for automatic measurement of NIP width for fuser member control

Piezoelectric sensors for automatic measurement of NIP width for fuser member control

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...

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Hauptverfasser: McNamee, Brian John, Montfort, David B, Adams, Jerry F
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creator McNamee, Brian John
Montfort, David B
Adams, Jerry F
description 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.
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title Piezoelectric sensors for automatic measurement of NIP width for fuser member control
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