| 摘要 |
An inkjet head includes an ink flow path unit. The ink flow path unit includes a common ink chamber and plural individual ink flow paths. Each individual ink flow path extends from the common ink chamber to a nozzle through a pressure chamber. The ink flow path unit includes plural stacked plates including first and second plates. At least a portion of the individual ink flow paths are formed in the stacked plates. The first plate is formed with plural holes that form the portion of the individual ink flow paths. One surface of the first plate is formed with plural annular escape grooves that surround the holes, respectively. All the annular escape grooves communicate with an atmosphere.
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