| 摘要 |
PURPOSE:To provide an ink jet device enhanced in the injection frequency of an ink liquid droplet and having a high printing speed. CONSTITUTION:In a drawing (b), negative voltage -V is applied to the electrodes of ink liquid chambers 12a, 12c and the volumes of the ink liquid chambers 12a, 12c become an expanded state to supply ink. In a drawing (c), a positive driving voltage V is applied to the electrodes of ink liquid chambers 12a, 12c, 12y and the ink liquid chambers 12a, 12c become a contracted state from the expanded state to inject ink droplets from nozzles. At that time, ink liquid chambers 12b, 12d become an expanded state to supply ink. Next, in a drawing (d), the positive driving voltage V is applied to the electrodes of the ink liquid chambers 12b, 12d an the ink liquid chambers 12b, 12d become a contracted state from an expanded state to inject ink liquid droplets from nozzles. |
