INKJET NOZZLE INCORPORATING ACTUATOR WITH MAGNETIC POLES
A nozzle for an inkjet printer includes a roof layer defining a nozzle port; a substrate layer defining a nozzle chamber wall supporting the roof layer; an actuator assembly attached to the substrate, the actuator assembly including a support and a lever arm cantilevered from the support to terminate in a piston within the nozzle chamber wall; and a solenoid provided at an end of the lever arm opposite to that of the piston, the solenoid including a movable magnetic pole and a fixed magnetic pole spaced apart from the movable magnetic pole.
1 . A nozzle for an inkjet printer, the nozzle comprising:
a roof layer defining a nozzle port;
a substrate layer defining a nozzle chamber wall supporting the roof layer;
an actuator assembly attached to the substrate, the actuator assembly including a support and a lever arm cantilevered from the support to terminate in a piston within the nozzle chamber wall; and
a solenoid provided at an end of the lever arm opposite to that of the piston, the solenoid including a movable magnetic pole and a fixed magnetic pole spaced apart from the movable magnetic pole.
2 . A nozzle as claimed in claim 1 , wherein the nozzle chamber wall defines a gap along a height of the nozzle chamber wall, the gap being dimensioned to pass the lever arm therethrough.
3 . A nozzle as claimed in claim 1 , further comprising a fulcrum provided on the lever arm between the piston and the solenoid.