Patent ID: 9168745
Filing Date: 2015-10-27
Classification: B41J

Abstract:
1. An ink jet print head assembly comprising: a carrier body having an ejection side configured to face an object to be printed upon and angled supporting surfaces on opposite sides of the carrier body, the supporting surfaces are oriented at acute angles with respect to the ejection side, the supporting surfaces extending from first ends of the carrier body to opposite second ends with the first ends of the supporting surfaces located closer to the ejection side than the second ends of the supporting surfaces and with the first ends of the supporting surfaces located closer together than the second ends of the supporting surfaces; plural elongated pistons coupled with the carrier body along the supporting surfaces of the carrier body, the pistons extending from first ends to opposite second ends with the first ends of the pistons located closer to each other and closer to the ejection side of the carrier body than the second ends of the pistons; and a printing plate coupled with the ejection side of the carrier body, the printing plate including a diaphragm plate and configured to hold a fluid to be printed on the object on a side of the diaphragm plate that is opposite of the pistons, the printing plate including orifices through which the fluid is ejected from the printing plate and onto the object being printed upon, wherein the pistons are configured to actuate in ejection directions in order to engage the diaphragm plate and cause the fluid to be ejected from the orifices of the printing plate along printing directions, wherein the pistons are disposed on the opposite sides of the carrier body along the supporting surfaces of the carrier body such that the supporting surfaces extend along at least a majority of lengths of the pistons along the ejection directions, and wherein the ejection directions in which the pistons are actuated are transversely oriented at acute angles with respect to the printing directions in which the fluid is ejected from the printing plate.