FLUID EJECTION HEAD, FLUID EJECTION DEVICE AND FLUID EJECTION MODULE Russian patent published in 2020 - IPC B41J2/01 

FIELD: printing equipment.

SUBSTANCE: fluid ejection head includes a pressure chamber which enables the first fluid and the second fluid to flow inside, a pressure generating element which applies pressure to the first fluid, and an ejection hole that ejects the second fluid. In a state where the first fluid flows in a direction crossing the second fluid ejection direction from the ejection hole while in contact with the pressure generating member, and the second fluid flows in that direction of intersection along the first fluid in the pressure chamber, the second fluid is ejected from the ejection hole by inducing the pressure generating element to apply pressure to the first fluid.

EFFECT: disclosed solution ensures high quality printing.

20 cl, 21 dwg