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Drop-on-Demand Ink-Jet
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A type of ink-jet technology in which the ink drops are formed and then applied as a response to a digital signal. There are two types of drop-on-demand printer systems: piezoelectric and thermal ink-jet. With a piezoelectric system, a piezoelectric crystal is given an electric charge, which produces a pressure pulse in the imaging head. This, in turn, produces the emission of an ink droplet onto the substrate. A thermal ink-jet, drop-on-demand system uses either a bubble jet system or a solid ink-jet system to created printed text and images.
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