Ink Jet Nozzle Design
Original Publication Date: 1979-Nov-01
Included in the Prior Art Database: 2005-Feb-20
Ink jet printers conventionally require a nozzle design (fixed-orifice nozzle) that requires close tolerances to achieve a predetermined velocity and flow rate combination. Moreover, fixed nozzle designs for printers, unless the ink is carefully controlled, effects clogs under certain conditions especially when the printer is not operated for extended time periods. The nozzle design shown above permits the adjustment of both the velocity and mass flow rates independently of each other while allowing for a loosening up of the tolerance requirements presently required for achieving certain velocity and flow rate combinations, thereby minimizing the clogging problem by allowing for a larger diameter nozzle orifice.