METHOD FOR LIQUID EJECTION, HEAD THAT EJECTS LIQUID, AND DEVICE THAT EJECTS LIQUID Russian patent published in 2009 - IPC B41J2/135 B41J2/16 

FIELD: technological processes.

SUBSTANCE: invention is related to head that ejects liquid, which carries out printing by means of drops ejection onto carrier, device that ejects liquid and method of liquid ejection. Liquid-ejecting head, in which liquid is ejected from ejection channel due to application of energy to liquid, besides ejection channel comprises one ledge having convex shape and arranged inside ejection channel, the first area for maintenance of liquid surface, which must be related to liquid in the form of column stretched outside from ejection channel, when liquid is ejected from it, and, in condition when the first area is created, the second area, to which liquid must be sucked in ejection channel in direction opposite to direction of liquid ejection, and which has hydraulic resistance that is lower than hydraulic resistance of the first area, at the same time the first area is created in direction, in which ledge shape convexity is inverted from distal end of ledge, and the second area is created on both sides from ledge.

EFFECT: possibility to arrange moment of ejected liquid separation as occurring earlier and to reduce tail of flying drop of liquid.

19 cl, 37 dwg