Recorders – Markers and/or driving means therefor – With ink supply to marker
Patent
1987-01-16
1988-09-13
Goldberg, E. A.
Recorders
Markers and/or driving means therefor
With ink supply to marker
346 75, G01D 1516
Patent
active
047712970
ABSTRACT:
A piezo-electric ink jet droplet generator (1) has a body part (2) having a first ink supply passage (10/11) and a second ink supply passage (12) extending generally perpendicularly therefrom through a protrusion (20) of the body and opening at an end face (14) of the protrusion. A piezo-electric crystal (6) is attached to a surface of the body closely spaced from the first ink supply passage and adjacent the end of the second ink supply passage which connects with the first supply passage. A nozzle (17) is mounted in a cap (3) which is secured to the end of the protrusion (20), the nozzle being in alignment with the second supply passage (12). The inner surface (13) of the cap surrounding the nozzle is spaced from the end face (14) of the protrusion thereby forming, in use, a disk (21) of ink between the inner face of the cap and the end face of the protrusion. The cap is sealed to the protrusion by means of a flexible seal ( 16) and engaged with the protrusion by means of a quick-release coupling (9,19).
REFERENCES:
patent: 4054883 (1977-10-01), Ozone
patent: 4184169 (1980-01-01), Taylor
patent: 4364059 (1982-12-01), Nagayama
patent: 4429317 (1984-01-01), Umezawa
Doyle James J.
Lecheheb Ammar
Domino Printing Sciences PLC
Goldberg E. A.
Reinhart Mark
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