INK JET PRINTING HEAD (VERSIONS) Russian patent published in 2009 - IPC B41J2/175 

FIELD: textiles, paper.

SUBSTANCE: invention refers to the ink jet printing head whereto surface protecting tape is bonded. Ink jet printing head consists of an elongated ink supply port, a lot of head groups, each of which consists of at least three head elements. Each head element contains some part of ink supply port, the first variety of outlet ink extrusion holes, ink passages for connection via fluid medium, the second variety of outlet holes, ink passages making the liquid passage difficult, the third variety of outlet holes, ink passages making the liquid passage difficult, and division walls between neighbouring ink passages. The first variety of outlet holes is located on one lateral side of ink supply port, and the second and the third variety - on the other lateral side. Pieces of width of division walls for the first variety of outlet holes are more than pieces of width L1 of the second and the third variety. In addition, the ink jet printing head consists of a sealing tape which protects outlet holes and which is non-removable in direction from the second or the third variety to the first variety.

EFFECT: reliable ink jet printing head protected with a tape.

8 cl, 21 dwg