Patent ID: 8025353

Claim:
A method for driving a droplet ejection device having an actuator, comprising: generating a first multi-pulse waveform that includes three or more drive pulses in predetermined positions and no drive pulses at locations embedded between the predetermined positions; applying the three or more drive pulses of the first multi-pulse waveform to the actuator to cause the droplet ejection device to eject a first droplet with a first droplet size of a fluid; generating a second multi-pulse waveform that includes no drive pulses in the predetermined positions and one or more drive pulses at locations embedded between the predetermined positions; and applying the one or more drive pulses of the second multi-pulse waveform to the actuator to cause the droplet ejection device to eject a second droplet with a second droplet size of the fluid, wherein the first and second droplets having different droplet sizes, these droplets are ejected at substantially the same effective drop velocity based on the peak voltages of the one or more drive pulses being scaled with respect to the peak voltages of the three or more drive pulses in the predetermined positions.