| 摘要 |
PROBLEM TO BE SOLVED: To reduce the number of parts and cut costs by simplifying a source circuit for the impression of an excitation voltage pulse and sharing a power source device. SOLUTION: Shadow pulses are impressed with a constant cycle altogether from a common shadow pulse impression power source device 5 to color ink feed multinozzles 1a, 1b, 1c, 1d. Printing pulses are impressed to gates 4 of rear electrodes 3a-3d which are controlled by printing pulse impression control ICs 6a-6d, synchronously with when the shadow pulses are impressed. |
