INK JET CONSTRUCTION AND METHOD OF CONSTRUCTION

摘要

. (Fig. 1) An ink jet includes a variable volume chamber 10 with an ink droplet ejecting orifice 12. The volume of the chamber is varied by a transducer 14 which expands and contracts in a direction having at least a component extending parallel with the axis ink droplet ejection from the orifice 12. The transducer 14 communicated with a moveable wall 18 of the chamber which has a sufficiently small area such that the difference in the pressure pulse transit times from each point on the wall 18 to the ink droplet ejection orifice 12 is less than 1 microsecond.