A circuit and related method are provided for driving an ink jet printer to achieve a consistent velocity of ejected ink drop despite differences in the time elapsing between successive drops. Timing pulses timing the ejection of drops each trigger the production of a fundamental waveform. This waveform...http://www.google.com.au/patents/US4562445?utm_source=gb-gplus-sharePatent US4562445 - Apparatus and method for driving ink jet printer
