| 摘要 |
A dual ink jet head has an actuator formed from a piezoelectric material that has side A and side B formed with a plurality of ink channels in total. To eject ink droplets from the nozzles in both side A and side B of the actuator using a single power source, electrode pairs for selected ink channels in side A are connected to the single power source and the remaining electrode pairs for non-selected ink channels in side A are disconnected from the single power source, and electrode pairs for selected ink channels in side B are disconnected from the single power source and the remaining electrode pairs for non-selected ink channels in side B are connected to the single power source. By so driving the actuator, ink droplets are ejected from the nozzles corresponding to the selected electrode pairs in both side A and side B. <IMAGE> |
