| 摘要 |
An ink-droplet detecting unit detects a spray state of an ink droplet sprayed from an ink-droplet spray head. The ink-droplet detecting unit includes a light-emitting element, a light-emitting element holder, a light-receiving element, a light-receiving element holder, and a base member. The light-emitting element holder is attached to the base member in a rotatable manner. The light-receiving element holder is attached to the base member in a slidable manner in a direction perpendicular to a rotation direction of the light-emitting element holder. The ink-droplet detecting unit is attached to a main body of the inkjet recording apparatus.
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