High density jetting a high density jetting apparatus

摘要

A high density jetting apparatus for a print head of an inkjet printer includes a manifold, at least two fluid chambers, orifices located on two sides of the manifold, and several bubble generating devices installed adjacent to two sides of the orifices. These bubble generating devices heat fluid inside the fluid chamber to generate two consecutive bubbles and eject fluid between the first and second bubbles from the orifice. The fluid chambers and orifices are arranged symmetrically or asymmetrically with respect to the manifold to increase the number of orifices and decrease turbulent effect, thereby improving print quality.