Inkjet printhead with high nozzle area density

An inkjet drop ejection device comprising a plurality of drop ejection apparati on a substrate, each of said drop ejection apparati comprising a chamber, an actuator and a nozzle, wherein drops of ink are ejected through said nozzle, and wherein the plurality of drop ejection apparati comprise a two dimensional array of at least two rows, wherein the spacing between apparati within a row and the spacing between said rows is such that the areal density of the two dimensional array of said drop ejection apparati on said substrate is greater than 50,000,000 per square meter.