Ink Droplet Ejection Drive Pulse Train for Satellite Droplet Control

The patent applies periodic pulse signals with specific timing intervals to the piezoelectric actuator. By controlling the frequency and period of these pulses, the system achieves stable ink droplet ejection without residual pressure waves, thereby preventing satellite droplets while maintaining high recording speed in low resolution mode.

The patent optimizes parameters including pulse width, voltage amplitude, and timing intervals of the drive signals. By adjusting these parameters, the system achieves maximum ink droplet ejection efficiency while minimizing residual pressure effects that cause satellite droplets, thus resolving the contradiction between recording speed and satellite droplet generation.

The patent employs periodic pulse signaling where the timing and frequency are optimized to produce high ejection velocity while allowing sufficient time for pressure wave dissipation between pulses. This periodic action ensures that residual pressure waves do not accumulate to generate satellite droplets.

The patent introduces a compensatory pulse or timing interval that acts in advance to counteract the residual pressure waves. By carefully designing the pulse sequence, the system preemptively cancels out pressure fluctuations that would otherwise cause satellite droplet formation.

The patent structures multiple drive pulses as a periodic sequence with optimized intervals. This allows rapid successive ejections for fast dot formation while maintaining sufficient spacing between pulses to allow pressure wave dissipation, thus preserving image quality without sacrificing recording speed.

The patent designs the pulse sequence to include preliminary timing adjustments that prepare the pressure chamber for successive ejections. By pre-calculating optimal pulse intervals and durations, the system achieves rapid dot formation while preventing pressure wave accumulation that would compromise image quality.