Water ejecting apparatus

A liquid ejecting apparatus comprising:

• a case;
• and
• a liquid ejector at least partially protruding from the case and comprising:
• a first lifting cover connected to the case;
• a lifting gear fixed to the first lifting cover;
• a second lifting cover received in the first lifting cover;
• a lifting motor coupled to the second lifting cover and engaged with a gear assembly;
• and
• a liquid ejection nozzle disposed at an end of the second lifting cover and configured to eject liquid,
• wherein the lifting gear has a first side and a second side opposite to the first side, and includes (i) gear teeth on the first side and (ii) at least one reinforcing hole or at least one reinforcing recess on the second side, and
• wherein the at least one reinforcing hole includes a plurality of reinforcing holes, or the at least one reinforcing recess includes a plurality of reinforcing recesses, and
• wherein the plurality of reinforcing holes or the plurality of reinforcing recesses are spaced apart in a direction along which the second lifting cover moves.