To provide a method of driving a droplet ejection head, and a droplet ejection head, each capable of realizing a uniform spatial distribution of the amount of ejected droplets.
The method of driving a droplet ejection head, equipped with a plurality of droplet ejection units to distribute a liquid in a predetermined area 300 using a predetermined number of continuously arrayed ejection units, is characterized in that a first ejection unit group P1 consisting of the ejection units continuously arrayed is driven by a first driving signal, a second ejection unit group P2 consisting of the ejection units continuously arrayed and disposed apart from the first ejection unit group P1 is driven by a second driving signal, a third ejection unit group P3 consisting of the ejection units disposed between the first ejection unit group P1 and the second ejection unit group P2 are driven either by the first driving signal or by the second driving signal, and in the third ejection unit group P3, the number of the ejection units driven by the first driving signal to be continuously arrayed is made smaller than the above predetermined number and the number of the ejection units driven by the second driving signal to be continuously arrayed is made smaller than the above predetermined number.
KOMORI SADAJI
ITO GOJI
Masatake Shiga
Kazunori Onami