Ink-jet head, has groove parts arranged in such way, that air included in connecting part can stream in zigzag course, and escape in atmosphere

摘要

The head includes a reservoir disk (15a) with a cavity forming an ink reservoir (15), a chamber disk (18a) with a cavity forming a print-producing chamber (18), in which ink is set under pressure, and a first (26) and a second air passage (28) comprising first (26a, 26b) and second groove parts (28a, 28b) displaced in a cross-section. The reservoir and the chamber form essential parts of an ink flow passage. The groove parts are arranged in such way, that their fronts are not aligned with their backs, and the fronts are connected with the back through passage holes (26c and 28c), and air included in a connecting part (25) can stream in a zigzag course along these groove parts, to escape in the atmosphere. An Independent claim is provided for a corresponding ink-jet head manufacturing method.