Jet speed. “Speed” can refer to both the speed at which the ink drop is fired, described here as
the drop speed, and to the interval between firing events, described here as the “drop frequency.”
The speed of the falling drop may vary according to ink formulation as well as
74 Ink Jet Textile Printing
the firing mechanism used to jet the ink. The frequency of the jet fire/fill/fire sequence must
be fast but also as consistent as possible. In commercial and industrial applications, speed
calculated in rates of quality as well as productivity has a significant financial impact