Industrial inkjet can apply a wide range of fluids with precision accuracy to a range of different substrates. Just one printhead can consistently pump 84 million drops of fluid per second.
An inkjet printhead jets drops of ink onto the substrate to create the image. Xaar printheads are DoD printheads which means that a drop of ink is only produced when it is needed. There are 3 different primary enabling technologies:
- Thermal inkjet (TIJ)
- Piezoelectric inkjet.
Valvejet printers use needle valves and solenoids to control the flow of ink, so they are relatively slow but deliver high volumes of ink. Their use is mainly in the coding and marking industry.
Thermal inkjet (TIJ) is the most common technology in desktop printers that we use at home. TIJ printers utilise a tiny heating element within the printhead to eject drops of ink. A current is applied to this element causing it to heat up rapidly. This element is in contact with the ink and causes a small amount of ink to vaporise. This creates a bubble within the printhead chamber forcing ink out of the nozzle.
Piezoelectric inkjet - Xaar
Piezoelectric printheads are made from a ceramic material that exhibits the reverse piezoelectric effect where it deforms when a voltage is applied to it. This effect is used in two ways: bend mode or shear mode. Xaar designs, manufactures and sells a wide range of piezoelectric printheads. Xaar's market-leading printhead, the Xaar 2001+ has four rows, each with 500 nozzles. Each nozzle's diameter is smaller than the width of a human hair and each nozzle is capable of firing 42,000 drops of ink per second. Each drop of ink travels at a speed of around six meters per second.
Visit Xaar Fundamentals page for further information on Xaar's printhead technology.
Xaar's revolutionary patented TF Technology® together with the unique Hybrid Side Shooter® architecture enables inks or other fluids in the printhead to flow directly past the back of the nozzle during drop ejection, at very high flow rates. Read more
Xaar provides a selection of printheads that offer companies flexibility to choose the right printhead for the application. XaarDOT® (Xaar Drop Optimisation Technology) encompasses a range of drop formation options, each with specific features . Read more
Tuned Actuator Manufacturing
Actuator performance in each printhead is optimised with Xaar’s Tuned Actuator Manufacturing. This process ensures full scalability with a simple and quick set up, streamlining printhead replacement, and achieves consistent print quality across long print bars with multiple printheads, at different greyscale levels.
The Xaar 2001+ family of printheads have the new XaarSMART™ technology which reports ink temperature and printhead status in real time so that printer performance can be easily adjusted to deliver consistent print quality throughout a production run.