Patent ID: 8388083
Filing Date: 2013-03-05
Classification: B41J

Abstract:
1. An electronic device to drive a plurality of transducers in a print head, comprising: at least one first transistor operatively connected to a reduced positive rail voltage, the reduced positive rail voltage having a level less than a positive rail voltage and a terminal, the at least one first transistor configured to drive the terminal to the positive rail voltage; at least one second transistor operatively connected to a reference voltage and the terminal, the at least one second transistor configured to drive the terminal to the reference voltage; at least one capacitor operatively connected to the terminal, the capacitor configured to provide a boosted output voltage to the transducers in the print head equal to the positive rail voltage causing the print head to dispense a fluid, wherein the first transistor comprises a first pair of MOSFETs operatively connected to opposite terminals of the capacitor respectively and configured to drive the opposite terminals of the capacitor to the positive rail voltage, and the second transistor comprises a second pair of MOSFETs operatively connected to the opposite terminals of the capacitor respectively and configured to drive the opposite terminals of the capacitor to the reference voltage; a first diode disposed between the capacitor and a selected one of the first pair of MOSFETs; a second diode disposed between the capacitor and a selected one of the second pair of MOSFETs; and a distribution switch operatively connected to the terminal and configured to select a subset of the transducers to receive the boosted output voltage.