Recorders – Markers and/or driving means therefor – With ink supply to marker
Patent
1986-07-11
1988-03-01
Hartary, Joseph W.
Recorders
Markers and/or driving means therefor
With ink supply to marker
G01D 1518
Patent
active
047289694
ABSTRACT:
An air-assisted drop-on-demand ink jet head 10 has a single compartment ink chamber 14 and is designed for operation over a wide range of ink drop repetition rates, including extremely high repetition rates, such as twenty kilohertz. The components included in the ink jet head have natural resonance frequencies which are greater than the desired maximum drop generation frequency of the ink jet head. In addition, the natural frequency of each of the components of the ink jet head are sufficiently different from one another to prevent intercoupling. Ink is supplied to the ink chamber 14 via a supply inlet passageway 38 which has a cross-sectional area which is sized large enough to allow the supply of ink to the ink chamber. Yet, this area is small enough so that the natural frequencies of ink in the ink inlet do not significantly alter drop generating pressure pulses in the ink chamber 14.
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International Business Machines Technical Disclosure Bulletin, vol. 22, No. 6, published Nov. 9, 1979, pp. 21333-2334.
"Nikkei Electronics": Dec. 5, 1983, pp. 87-89.
"The Effect of Head Dimensions on Drop Formation in Drop-On-Demand Ink-Jet Printing", Takada et al., SID Symposium Digest, 1985, pp. 317-320.
"Droplet Emission with Micro-Planar Ink Drop Generators", Doring et al., SID Symposium Digest, 1984, pp. 364-367.
Adams Ronald L.
Anderson Jeffery J.
Le Hue P.
Oswald James C.
Roy Joy
Hartary Joseph W.
Petersen David P.
Tektronix Inc.
Winkelman John D.
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