| 摘要 |
PURPOSE:To prevent uneven driving of a piezo-vibrator and a head by means of a simple construction, by a method wherein, in a head exciting circuit for a printer having a plurality of ink jet heads, a capacity is connected in series to each of piezo- vibrators which are connected in parallel. CONSTITUTION:Piezo-vibrators 3a and 3b, which provide ink in ink jet heads 1a and 1b with vibration, are excited by an exciting circuit, and an ink column is cut thereby generating ink jet particles 4a and 4b. In this case, the piezo-vibrators 3a and 3b (7a and 7b) are connected in parallel, said parallel circuits are driven by means of a single exciting circuit 6, and capacities 8a and 8b are connected in series to the piezo-elements 7a and 7b, respectively. The adjustment of values of said capacities enables uniform driving of a plurality of heads. |
