Multipulsing method for operating an ink jet apparatus for...

Details Multipulsing method for operating an ink jet apparatus for... Multipulsing method for operating an ink jet apparatus for...

B - Operations, Transporting

41

J

101/96.0201

B41J 2/12 (2006.01) B41J 2/045 (2006.01)

Patent

CA 1259853

-18- ABSTRACT OF THE DISCLOSURE A method for both reducing the ligament length and satellite droplet problems associated with producing high velocity ink droplets from an ink jet head printing at relatively high ink jet head transport speeds, comprises driving the ink jet head with a composite waveform including independent and successive first, second, and third electrical pulses, each having an exponential leading edge and a step-like trailing edge, the pulses being constructed to have amplitudes, pulse widths, and dead times between pulses, for causing the ink jet head to eject three successive ink droplets, each of increased velocity relative to the preceding droplet, for causing the droplets to merge in flight to form a single or ultimate droplet having a predetermined velocity.

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