Recorders – Markers and/or driving means therefor – With ink supply to marker
Patent
1984-06-06
1986-06-17
Miller, Jr., George H.
Recorders
Markers and/or driving means therefor
With ink supply to marker
G01D 1518
Patent
active
045959382
ABSTRACT:
The head is provided for a conductive ink (16) and comprises a container (14) having a capillary nozzle (18) where the ink is in contact with a pair of electrodes facing each other across the nozzle, in such a way as to be covered by a predetermined depth of ink between the electrodes and the meniscus (52) at the front end of the nozzle. Printing is effected by vaporization of a portion of ink in a section of the nozzle between the electrodes, which expels the said depth of ink. The container is closed by an insulating plate (30) over which extends a metal strip (37) of smaller width than the diameter of the nozzle. The nozzle is formed by means of a single hole through the plate and the strip, whereby the strip is separated into two electrodes. The metal strip may be disposed between the plate and a front dielectric layer 43. The latter may also be covered by a second insulating layer having a front part of the nozzle therethrough, while the first dielectric layer may have a hole which is larger in diameter than the nozzle so as to create a reserve of ink for the frequent dots. For a multi-nozzle head, the nozzles are produced through an insulating plate over which extend the strips for a plurality of pairs of electrodes.
REFERENCES:
patent: 4275290 (1981-06-01), Cielo et al.
patent: 4308547 (1981-12-01), Lovelady et al.
patent: 4458256 (1984-07-01), Shirato et al.
Conta Renatol
Manini Enrico
Ing. C. Olivetti & C. S.p.A.
Miller Jr. George H.
LandOfFree
Ink jet print head does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ink jet print head, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ink jet print head will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2275848