Compact inkjet nozzle device with high degree of symmetry

An inkjet nozzle device comprising an elongate main chamber having a floor, a roof and a perimeter wall extending between the floor and the roof, the perimeter wall having a pair of longer sidewalls and a pair of shorter endwalls, the main chamber comprising:

• a firing chamber disposed towards one of the sidewalls, the firing chamber having a nozzle aperture defined in the roof and an elongate bar heater for ejection of ink through the nozzle aperture, the bar heater having a longitudinal axis;
• an antechamber disposed towards an opposite sidewall for supplying ink to the firing chamber, the antechamber having first and second chamber inlets defined in the floor;
• and
• an elongate baffle plate having a longitudinal axis extending parallel with the longitudinal axis of the bar heater, the baffle plate partitioning the main chamber to define the firing chamber and the antechamber,
• wherein;
• the inkjet nozzle device has mirror symmetry about a symmetry plane extending perpendicular to the longitudinal axes of the bar heater and the baffle plate;
• the symmetry plane bisects the nozzle aperture, the bar heater and the baffle plate;
• the first and second chamber inlets are positioned towards respective first and second opposite ends of the baffle plate;
• and
• the first and second chamber inlets are equidistant from the symmetry plane.