| 摘要 |
<p>PROBLEM TO BE SOLVED: To simplify a structure of a lid of a liquid supply unit in the liquid supply unit.SOLUTION: In a liquid supply unit, a first groove of a first surface of a lid has one end communicating with a first recessed portion via a first communication hole formed on the lid, a second groove of the first surface of the lid has one end communicating with a second recessed portion via a second communication hole formed on the lid, a third groove of a second surface of the lid has one end communicating with the other end of the first groove via a first through-hole formed on the lid and the other end communicating with atmosphere via a first atmospheric hole formed on the lid, a fourth groove of the second surface of the lid has one end communicating with the other end of the second groove via a second through-hole formed on the lid and the other end communicating with the atmosphere via a second atmospheric hole formed on the lid, and the first atmospheric hole, the second atmospheric hole and the first recessed portion overlap with one another in a direction from the lid toward a housing.</p> |
