Patent ID: 10357967

Abstract:
Printheads for jetting a print fluid and associated methods. In one embodiment, the printhead includes a row of jetting channels configured to jet droplets of a print fluid, and a head driver that receives a data signal and a drive waveform comprising a series of jetting pulses. Responsive to the data signal indicating jetting by a jetting channel, the head driver applies one or more jetting pulses on the drive waveform to an actuator of the jetting channel to cause ejection of a droplet from a nozzle of the jetting channel. Responsive to the data signal indicating non-jetting by the jetting channel, the head driver clips the amplitude of a jetting pulse on the drive waveform to generate a non-jetting pulse that is applied to the actuator of the jetting channel. The non-jetting pulse creates movement of a fluid meniscus at the nozzle of the jetting channel without ejecting a droplet.