| 摘要 |
<p>An inkjet recording apparatus includes an ink-droplet spray head (16) that sprays an ink droplet and an ink-droplet detecting unit (20) that detects a spray state of the ink droplet. The ink-droplet detecting unit (20) includes a light-emitting element (41) that emits a light, a light-emitting element holder (40) that holds the light-emitting element (41), a light-receiving element (46) that receives the light emitted from the light-emitting element (41), a light-receiving element holder (45) that holds the light-receiving element (46), and a base member (28) on which the light-emitting element holder (40) and the light-receiving element holder (45) are mounted at an emission-side positioning point and a reception-side positioning point, respectively. The light-emitting element holder (40) is attached to the base member (28) in a rotatable manner around the emission-side positioning point. The light-receiving element holder (45) is attached to the base member (28) in a slidable manner in a direction perpendicular to a rotation direction of the light-emitting element holder (40). The ink-droplet detecting unit (20) is attached to a main body of the inkjet recording apparatus.</p> |
