This PQ-512/15 Spectra Polaris print head is suitable for printers such a Flora LJ-320P. This is the original Spectra Polaris print head and it carries the manufacturer product warranty. The Spectra Polaris PQ-512/15 printhead utilizes the binary operating capability of Dimatix’ VersaDrop jetting technology and Q-Class hybrid construction to deliver ink drop sizes from 15 to 30 picoliters from 512 individually addressable inkjet nozzles at continuous frequencies up to 45 kHz fired at 8 meters/second velocity with exceptional straightness.