The liquid droplet ejecting apparatus includes an ejecting head having a plurality of nozzles for ejecting liquid droplets and a plurality of liquid droplet ejecting devices arranged in correspondence with the plurality of nozzles, respectively, and driven with modulation in response to signals, a detection...http://www.google.com.au/patents/US20020154186?utm_source=gb-gplus-sharePatent US20020154186 - Liquid droplet ejecting apparatus
