Method and apparatus for acoustically synchronizing drop...

Details Method and apparatus for acoustically synchronizing drop... Method and apparatus for acoustically synchronizing drop...

G - Physics

01

D

101/96.0207

G01D 15/16 (2006.01) B23K 1/005 (2006.01) B23K 26/34 (2006.01) B23P 15/00 (2006.01)

Patent

CA 1098159

METHOD AND APPARATUS FOR ACOUSTICALLY SYNCHRONIZING DROP FORMATION IN AN INK JET ARRAY Abstract of the Disclosure An ink jet synchronization scheme, wherein the drop form- ation of respective streams in an ink jet array are synchronized acoustically by individual acoustic fiber inputs to each of the streams. The acoustic fibers are attached to grooves adjacent each of the nozzles, with acoustic isolation being provided between the fiber and the nozzle substrate to prevent direct excitation of the substrate. This prevents the occurrence of resonance within the nozzle plate. Alternatively, acoustic isolation is achieved by mounting the synchronization structure separate from the nozzle plate. For example, the acoustic fibers are attached to the charge electrode structure, or are attached to a support structure intermediate the nozzle plate and the charge electrode structure. The acoustic energy inputs to the fibers are independently controlled as is required for certain printing schemes or are made identical as is normally the case.

287940

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