| 摘要 |
PURPOSE:To certainly prevent such a state that air is introduced into an ink emitting nozzle at the time of the detachment of an ink jet head. CONSTITUTION:In the ink jet head attached to an apparatus main body in a freely detachable manner and havng ink emitting nozzles 2 extending in the before-and-behind direction opened thereto so as to face to the leading end surface of a head main body 1, the rear end surface of the head main body 1 in an erected posture state wherein the ink emitting nozzles 2 are turned in a vertical direction is set as an unstable support surface 3. |
