Patent ID: 8534807
Filing Date: 2013-09-17
Classification: B41J

Abstract:
1. A system for ejecting droplets of a fluid, comprising: a substrate including a flow path body having a fluid path formed therein, the fluid path including a fluid pumping chamber, a descender fluidically connected to the fluid pumping chamber, a nozzle fluidically connected to the descender, the nozzle being arranged to eject droplets of fluid through an outlet formed in an outer nozzle layer surface, and a recirculation passage directly connected to the descender at a connection point, the connection point being closer to the nozzle than the fluid pumping chamber; a fluid supply tank fluidically connected to the fluid pumping chamber; a fluid return tank fluidically connected to the recirculation passage; and a pump configured to fluidically connect to the fluid return tank and the fluid supply tank, thereby forming a fluid path from the fluid supply tank to and through the substrate, from the substrate to the fluid return tank, and from the fluid return tank to the fluid supply tank.