A liquid ejection device includes a first rolled medium accommodation unit, a second rolled medium accommodation unit and a liquid ejection head. The first rolled medium accommodation unit is configured to accommodate a rolled medium, the first rolled medium accommodation unit being movable along a first path. The second rolled medium accommodation unit is configured to accommodate the rolled medium, the second rolled medium accommodation unit being movable along a second path. The liquid ejection head is configured to eject an ink as a liquid onto a medium supplied by being unwound from the rolled medium.