The present invention uses a novel waveform to allow the droplet volume dispensed from a demand mode inkjet type device to be increased and selected according to easily controllable parameters. The current invention departs from the conventional drive method by significantly increasing the time for energy...http://www.google.co.uk/patents/US6029896?utm_source=gb-gplus-sharePatent US6029896 - Method of drop size modulation with extended transition time waveform
