Patent ID: 7387365

Claim:
A nozzle for an inkjet printer, the nozzle comprising: a cover defining a nozzle port; a substrate assembly fast with the cover, and defining a nozzle chamber in fluid communication with the nozzle port and into which ink can be supplied; a plate fast with the substrate assembly and comprising two electrically isolated ferromagnetic parts; a plunger assembly comprising a plunger and biasing means configured to bias the plunger into a spaced apart position with respect to the plate, and defining a solenoid channel in which a solenoid can be received; and the solenoid located in register with the solenoid channel and which can be coupled to a current supply so that, upon actuation, the solenoid induces movement of the plunger toward the plate to thereby increase ink pressure in the nozzle chamber and eject ink therein through the nozzle port.