ELECTRODE FOR PRINTER

摘要

An ejection apparatus for ejecting material from a liquid has an ejection cell (2) for containing the liquid in use. The cell (2) has a protrusion (3) disposed so as to be contacted by liquid in the cell on more than one side and defining a predetermined location for a meniscus of the liquid at an opening in the cell. An ejection electrode (6) is disposed in the cell at a position inwardly of the cell with respect to the predetermined location of the meniscus.