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Volume: 19 | Article ID: art00019_2
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Manifold Ringing Mitigation Through Tuned, Lumped Compliance
  DOI :  10.2352/ISSN.2169-4451.2003.19.1.art00019_2  Published OnlineJanuary 2003
Abstract

Ringing, or acoustic pressure oscillation, in the ink feed manifold system of a piezoelectric printhead can cause significant drop velocity and mass variation. These pressure induced velocity and mass changes cause visual print quality artifacts. One critical test condition is the end of a solid fill region where all the jets of a given color were running and stop suddenly. The manifold system reacts to the sudden stoppage in exiting ink flow, resulting in a rise and subsequent oscillation in pressure. If a drop is then fired at the time coinciding with the minimum or maximum pressure, the drop's position (due to velocity change) may be significantly altered relative to nominal. This effect can be observed in light dithers following a solid fill.Analytical modeling and experimental verification were used to design a mitigation scheme for manifold ringing using passive, tuned, lumped compliance. The location was chosen for maximum global pressure amplitude mitigation; the amount of compliance was limited by manufacturing capability; and the entrance to the added compliance was chosen to tune the resonator at the dominant manifold acoustic resonance.

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John M. Brookfield, "Manifold Ringing Mitigation Through Tuned, Lumped Compliancein Proc. IS&T Int'l Conf. on Digital Printing Technologies (NIP19),  2003,  pp 529 - 531,  https://doi.org/10.2352/ISSN.2169-4451.2003.19.1.art00019_2

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