Patent ID: 6027195
Filing Date: 2000-02-22
Classification: B41J,H04N

Abstract:
A method for synchronizing a plurality of piezoelectric crystals on a corresponding plurality of ink jet printheads comprising the steps of:providing a plurality of ink jet printheads, each of said printheads including an ink chamber having a plurality of nozzle orifices and a piezoelectric crystal for producing vibrational waves within said ink chamber, said piezoelectric crystal having a piezoelectric clock source and vibrating at a vibrational frequency of said piezoelectric clock source;embedding a first clock signal in data so as to produce a combined data and clock signal;communicating said combined data and clock signal to each of said printheads;deriving said first clock signal from said combined data and clock signal by each of said printheads; andgenerating said piezoelectric clock source from said first clock signal by each of said printheads;whereby said vibrational frequency of each of said plurality of piezoelectric crystals are generated from said first clock signal.