| 摘要 |
PROBLEM TO BE SOLVED: To prevent the evaporation of ink and infiltration of air in the atmosphere by arranging in a row a pressure chamber with a nozzle for jetting ink and an electromechanical conversion element and a head chip with an orifice for controlling the ink flow on an ink passage and an opening section and a blocking section of an ink bag. SOLUTION: A flow path is formed by a pressure chamber 4 to which a nozzle 2 and an electromechanical conversion element 3 are connected and an orifice 5 in a recording head 1. When a driving signal is input into the electromechanical conversion element 3, the jetting of ink is carried out by the nozzle 2. A centerline is formed straight on an ink jet line. An ink bag 7 consists of a blocked hemispherical section 8 and a cylindrical section 10 to which a circular opening section 9 is connected. A reservoir section 13 of a case component 12 with a thick wall section 11 of the ink bag 7 disposed on its lower section is formed to run through straight from the fixed side of a head chip 1 through the fixed side of the ink bag 7 to form an ink introduction line. The physical property variation of the ink can be reduced by the above arrangement, and the stabilized ink jetting can be carried out. |
