Ink jet printhead assembly having aligned dual internal channel

Details Ink jet printhead assembly having aligned dual internal channel Ink jet printhead assembly having aligned dual internal channel

1995-02-22

1996-09-17

Fuller, Benjamin R.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 40, B41J 2045

Patent

active

055573096

ABSTRACT:
A high density ink jet printhead having a body subassembly comprising a piezoelectric main block having metallic layers disposed on first and second sides thereof, and first and second piezoelectric sheets secured to front portions of the metallic layers. A first and second laterally spaced series of elongated parallel grooves extending between the front and rear ends of the subassembly and extending into the first and second sides through the first and second piezoelectric sheets, and the first and second metallic layers; the first series of grooves being in precise lateral alignment with the second series of grooves. First and second cover blocks are secured to the opposite piezoelectric sheets over the open grooves to form a first and a second series of interior ink channels.

REFERENCES:
patent: 5252994 (1993-10-01), Narita et al.
patent: 5327627 (1994-07-01), Ochiai et al.

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