Invention Grant
- Patent Title: Lead-free piezo printhead using thinned bulk material
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Application No.: US15611179Application Date: 2017-06-01
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Publication No.: US10252525B2Publication Date: 2019-04-09
- Inventor: Peter J. Nystrom , Gary D. Redding , Angus Ian Kingon , Seunghyun Kim , Nicholas Mostovych
- Applicant: Xerox Corporation , Brown University
- Applicant Address: US CT Norwalk US RI Providence
- Assignee: Xerox Corporation,Brown University
- Current Assignee: Xerox Corporation,Brown University
- Current Assignee Address: US CT Norwalk US RI Providence
- Agency: Fay Sharpe LLP
- Main IPC: B41J2/14
- IPC: B41J2/14 ; B41J2/16 ; C04B35/475 ; C04B35/453

Abstract:
An apparatus for a lead-free piezoelectric ink-jet printhead is disclosed. Piezoelectric printheads, while more expensive are favored because they use a wider variety of inks. The piezoelectric printhead includes a diaphragm, a plurality of piezoelectric actuators comprising a lead-free piezoelectric material, at least one nozzle, at least one ink chamber, a top electrode, and a drive circuit. The deflection of the diaphragm on the body chamber contributes to a pressure pulse that is used to eject a drop of liquid from the nozzle. According to an exemplary embodiment, a lead-free piezoelectric printhead operated at smaller thicknesses and significantly higher electric fields is disclosed, along with methods of making such printheads.
Public/Granted literature
- US20180345670A1 LEAD-FREE PIEZO PRINTHEAD USING THINNED BULK MATERIAL Public/Granted day:2018-12-06
Information query
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