REQUIREMENTS FOR A FLIGHT STRAIGHT LABELLING DEVICE WORKING ON THE THERMAL WANDER PRINCIPLE AND PROCEDURES FOR ITS RECORD.

摘要

PCT No. PCT/DE91/00364 Sec. 371 Date Jan. 21, 1993 Sec. 102(e) Date Jan. 21, 1993 PCT Filed Apr. 26, 1991 PCT Pub. No. WO91/17891 PCT Pub. Date Nov. 28, 1991In an ink print head of sandwich type construction which works according to the bubble-jet principle, the heating elements, electric lines and contacts, as well as the shoot out openings are advantageously produced in the same chip by planar processing steps (back-shooter principle). The heating elements and the shoot out openings are arranged so as to be laterally offset relative to one another in such a way that the spreading direction of the steam bubble is directed opposite to the ink shooting direction. Such an arrangement results in a simple and accordingly inexpensive production of such ink print heads since all precision processing steps are advantageously effected in a planar process and joined on one element.