Pump pulsation has long been a major issue affecting print quality in inkjet printers. Diaphragm pumps inherently generate pulsation, so users have traditionally installed external suppression mechanisms as a countermeasure. Recently, demand for recirculating printheads has increased, making pulsation suppression an even more critical challenge. KNF explored whether the pump itself could reduce pulsation without relying on the user. This led to the development of the FP series we are introducing.