DRIVING METHOD OF LIQUID JET HEAD, AND LIQUID JET DEVICE

To provide a technique for improving jet efficiency of a liquid jet head.SOLUTION: A liquid jet head includes nozzles for jetting liquid, first and second pressure chambers communicating with the nozzles, a first driving element for changing pressures of the first pressure chamber, and a second driving element for changing pressures of the second pressure chamber. A first channel length of a channel from the first pressure chamber to the nozzles is shorter than a second channel length of a channel from the second pressure chamber to the nozzles. A driving method of a liquid jet head drives at least the first and second driving elements and thereby jets liquid from the nozzles, and driving timing of the second driving element is quicker than driving timing of the first driving element.SELECTED DRAWING: Figure 8 【課題】液体噴射ヘッドの噴射効率を向上する技術を提供する。【解決手段】液体噴射ヘッドは、液体を噴射するノズルと、ノズルに連通する第１及び第２圧力室と、第１圧力室の圧力を変化させる第１駆動素子と、第２圧力室の圧力を変化させる第２駆動素子と、を備える。第１圧力室からノズルまでの流路の第１流路長は、第２圧力室からノズルまでの流路の第２流路長よりも短い。液体噴射ヘッドの駆動方法は、少なくとも第１及び第２駆動素子を駆動させることでノズルから液体を噴射させ、第２駆動素子の駆動タイミングが、第１駆動素子の駆動タイミングよりも早い。【選択図】図８