A multiplex drop ejection construction for a drop-on-demand, ink jet printer. The construction includes a support substrate; a first circuit portion having branches that include a resistive heater element and a diode device formed in spaced relation on the substrate. A dielectric passivation layer overlies...http://www.google.com/patents/US4999650?utm_source=gb-gplus-sharePatent US4999650 - Bubble jet print head having improved multiplex actuation construction
