Patent ID: 8292384

Claim:
A liquid droplet ejection device comprising: a recording section at which a plurality of liquid droplet ejectors are arrayed, each liquid droplet ejector having a driving element, and ejecting a liquid droplet onto a recording medium due to a driving signal for ejecting a liquid droplet being supplied to the driving element; a moving section that moves the recording section and the recording medium relative to one another in a direction intersecting an array direction in which the plurality of liquid droplet ejectors are arrayed; and a driving signal supplying section that, when a plurality of types of liquid droplets having different droplet volumes are ejected onto the recording medium while the recording section and the recording medium are moved relatively, generates the driving signals such that, the smaller a droplet volume of a liquid droplet, the faster the ejection speed of the liquid droplet, and supplies the driving signals to the driving elements, wherein, when recording on the recording medium an image having a width that is greater than or equal to a predetermined length in the array direction, the driving signal supplying section generates and supplies the driving signals such that an ejection speed of liquid droplets that are ejected from end portion liquid droplet ejectors, which are positioned at both ends in the array direction and within predetermined ranges from the respective both ends of the liquid droplet ejectors that are used for recording the image, is faster than an ejection speed of liquid droplets that are ejected from liquid droplet ejectors other than the end portion liquid droplet ejectors.