To prevent waste liquid ink in a waste liquid box from flowing reversely and entering a capping means.

The waste liquid system for discarding a solution sucked from a liquid ejection head ejecting a solution drop while carrying a target comprises a capping means for sealing the liquid ejection head, a waste liquid box for holding the solution sucked from the liquid ejection head, a tube having an end being connected with the capping means and an end being connected with the waste liquid box, and a pump for sucking the solution from the liquid ejection head and carrying the solution in the tube to the waste liquid box wherein at least a part of the tube is located above the waste liquid box and the other part is located below the waste liquid box.