Abstract
Flow patterns of ink layers on the nozzle plate of a piezo-driven printhead are investigated. Two different flow types are identified. First, a jet of droplets induces a radial airflow in the direction of the jet, which in turn causes a liquid flow towards the nozzle. Second, the movement of the meniscus in the nozzle causes an equally strong flow, but completely different flow patterns. The results are presented in a phase diagram with pulse amplitude and firing frequency as parameters.
Original language | English |
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Pages (from-to) | 217-224 |
Number of pages | 8 |
Journal | Experiments in Fluids |
Volume | 42 |
Issue number | 2 |
DOIs | |
Publication status | Published - Feb 2007 |