| 摘要 |
PROBLEM TO BE SOLVED: To prevent occurrence of a defective nozzle caused by an air bubble of a droplet discharge head disposed to be inclined.SOLUTION: An appearance shape of an inkjet recording head 12 is made to be an axially symmetrical structure with respect to a central axis, and an ink supply port, an ink recovery port, and a connector for electrical connection are provided at both ends in a longitudinal direction of the inkjet recording head 12, so that the inkjet recording head 12 can be reversely mounted. The inkjet recording head 12 is mounted so that a predetermined direction of an asymmetrical ink channel of the inkjet recording head 12 faces in a vertical center line Y direction of a conveying drum 14. |
