Patent ID: 7500735

Claim:
An apparatus for ejecting liquid droplets onto a recording medium, comprising: a liquid droplet ejecting head main body which includes: a plurality of nozzle rows for ejecting the liquid droplets; a pressure generation chamber communicating with a nozzle in the plurality of nozzle rows; a pressurization section, driven based on ejecting data, for giving pressure to the pressure generation chamber so that the liquid droplets are ejected from nozzles; and a plurality of drive circuits corresponding to the plurality of nozzle rows, each of the plurality of drive circuits comprising: a first storage section for storing the ejection data corresponding to a nozzle row in the plurality of nozzle rows; a first latch section for storing the ejection data outputted from the first storage section; a second latch section for storing the ejection data outputted from the first latch section; and a drive section for driving the pressurization section based on the ejection data stored the second latch section; and a control section, wherein the control section ensures that a timing for storing the ejecting data outputted from the first storage section into the first latch section is synchronized among the plurality of nozzle rows, and a timing for storing the ejecting data outputted from the first latch section into the second latch section is capable to be adjusted independently among a plurality of nozzle rows.