APPARATUS FOR PRODUCING MULTIPLE UNIFORM FLUID FILAMENTS AND DROPS

摘要

Method and apparatus for use in an ink jet printing device to synchronously produce a plurality of uniform fluid filaments and droplets. A fluid reservoir is provided with an orifice plate having a plurality of orifices through which the fluid issues to produce the desired filaments and droplets. The top of the reservoir consists of a flexible pressure plate which can be flexed in a transverse bending motion by a plurality of electro-acoustic transducers suspended above the pressure plate so as to produce substantially uniform pressure waves in the fluid over the plurality of orifices.