Ceramic ink jet printing element

Details Ceramic ink jet printing element Ceramic ink jet printing element

1998-08-31

2000-11-28

Barlow, John

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 70, B41J 2045

Patent

active

061542393

ABSTRACT:
An ink jet printing element (200) includes a body (110) comprising a ceramic composite material that has a closed base (120) and independent fluid containment compartments (220) formed about the closed base (120). Preferred ceramic composite materials include tetragonal zirconia alloy, zirconia-alumina composites and a mixture thereof. A substantially planar piezoelectric transducer (80) comprising a slab (60) of piezoelectric material provides a means of enclosing each of the independent fluid containment compartments (220). Each of the independent compartments has operably associated therewith one of a plurality of first surface electrodes (20) arranged on a first surface (62) of the slab (60) of piezoelectric material and a portion of a second surface electrode (22) arranged on an opposite second surface (64). By applying a voltage to the first and second surface electrodes (20, 22) in a predetermined manner induces an electric field in a portion of the slab (60) of piezoelectric material and thereby forces fluid composition through the independent fluid containment compartment (220).

REFERENCES:
patent: 4766671 (1988-08-01), Utsumi et al.
patent: 5719607 (1998-02-01), Hasegawa et al.

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