Patent ID: 8382254
Filing Date: 2013-02-26
Classification: B41J

Abstract:
1. A liquid dispenser comprising: an array of liquid dispensing elements positioned on a substrate, each liquid dispensing element including: a liquid manifold including a liquid supply duct and a liquid return duct, the liquid supply duct being in fluid communication with each liquid supply passage of each liquid dispensing element, the liquid return duct being in fluid communication with each liquid return passage of each liquid dispensing element; a liquid supply that provides liquid that flows from the liquid supply duct of the liquid manifold through each liquid dispensing element to the liquid return duct of the liquid manifold, each diverter member being selectively activated to divert a portion of the liquid flowing through the associated liquid dispensing channel through the outlet opening of the associated liquid dispensing channel to dispense a drop of the liquid, wherein the liquid provided by the liquid supply is provided under pressure sufficient to cause the liquid to serve as the primary motive force for liquid ejection through the outlet opening.