Ink jet printhead which incorporates mass actuated ink ejection mechanisms

摘要

An ink jet print head has a plurality of nozzle arrangements. Each nozzle arrangement defines a nozzle chamber having an ink ejection port. Each nozzle arrangement has an ink ejection mechanism for ejecting ink from the nozzle chamber and out of the ink ejection port. Each ink ejection mechanism is repeatedly actuable by an actuator, at a desired frequency. The print head includes a plurality of de-activators which are operatively engageable with the ink ejection mechanisms and are selectively operable to de-activate the ink ejection mechanisms. The de-activators are connectable to a control system to control operation of the de-activators.