This animation demonstrates Trident's highly reliable piezoelectric inkjet technology. 

Sequence of an Ink Jet Firing Cycle:

(1) Voltage applied
A voltage is applied to piezoelectric element or "transducer".  This causes the piezoelectric ceramic material to shorten which draws back the "piston" or "foot" at the firing chamber.

(2) Piezo contracts
This, in turn, pulls ink into the chamber from the ink manifold through the restrictor.  The properties of the ink are such that the surface tension at the orifices prevents air from being pulled into the chamber during this phase of the firing cycle.

(3) Voltage released
The voltage is then released, the piezo transducer expands to its original length expelling ink out of the orifices of the chamber. 

(4) Ink fired
After the ink droplets leave the firing chamber, the fluid stabilizes and chamber readies for another firing cycle. 

Ink / Printhead match is critical:
The internal dimensions of the fluid path within Trident's printheads must be matched to the exact properties of the fluid to be jetted.  This allows ink to be drawn into the printhead via capillary action and fired reliably. 

With many years of experience, Trident is able to adapt both the design of printhead and the properties of the ink as needed to meet the demands of particular industrial printing applications.