Patent ID: 8371670

Claim:
A liquid droplet jetting apparatus which jets liquid droplets of a liquid onto a recording medium, comprising: a jetting head having a channel unit in which a plurality of nozzles for jetting the liquid droplets and a plurality of pressure chambers communicating with the nozzles respectively are formed, and a pressure applying section which applies a pressure to the liquid inside the pressure chambers; a scanning section which reciprocates the jetting head across a recording area of the recording medium; and a controller which is configured to: include a pressure calculating section which is configured to calculate a pressure in the channel unit; control the pressure applying section to execute: a duty limiting in which a jetting amount of the jetting head for a predetermined time period is limited to a first jetting amount when the pressure in the channel unit calculated by the pressure calculating section satisfied a predetermined condition; and a flushing in which the pressure applying section is driven irrespective of a jetting operation onto the recording medium; and control the pressure applying section to make the jetting amount of the jetting head for the predetermined time period be a second jetting amount which is greater than the first jetting amount, under a condition that the pressure calculated by the pressure calculating section satisfies the predetermined condition and that the flushing is to be executed after the pressure calculated by the pressure calculating section satisfied the predetermined condition; wherein before the flushing is executed, the controller is configured to control the scanning section to move the outside the recording area; and wherein the controller is configured to stop driving the pressure applying section while the jetting head being is moved by the scanning section toward outside the recording area before the flushing.