Patent ID: 6231163
Filing Date: 2001-05-15
Classification: B41J,B82Y,G06K,G11C,H04N

Abstract:
An ink jet nozzle apparatus comprising:a nozzle chamber having an ink ejection port in one wall of said chamber;an ink supply source interconnected to said nozzle chamber;an electrostatic actuator to eject ink from said nozzle chamber via said ink ejection port, said electrostatic actuator comprising a series of conductive parallel plates interleaved with resiliently compressible material layers laid down as thin film between the parallel plates;means forproducing a potential difference across said plates so as to attract adjacent plates to one another thereby causing said compressible material layers to resiliently yield; andmeans for reducing said potential difference such that said compressible material layers return to their quiescent state, thereby resulting in the ejection of ink from said ejection port.