Patent ID: 7361966
Filing Date: 2008-04-22
Classification: B41J

Abstract:
1. An inkjet printhead actuator chip, comprising: dozens of ink actuators substantially arranged in a column to eject ink from said printhead during printing, each of said dozens of ink actuators staggered in relation to adjacent ones of said dozens of ink actuators; and dozens of ESD circuits per each of the dozens of ink actuators, each of said dozens of ESD circuits including a ballast resistor and a diode connected in series, wherein the diode of about half of the dozens of ESD circuits connects in a forward bias toward power while the diode of about the other half of the dozens of ESD circuits connects in a forward bias away from ground, whereby each of said dozens of ESD circuits is substantially equidistantly spaced in relation to a corresponding said each of said dozens of ink actuators to afford substantially common ESD protection.