Patent ID: 8752935

Claim:
A liquid ejection device comprising: a transport unit configured and arranged to transport an ejection medium; a medium support unit arranged on a downstream side of the transport unit with respect to a transport direction of the ejection medium, and having a medium support surface on which the ejection medium is supported by suction using negative pressure; a liquid ejection head configured and arranged to eject liquid on the ejection medium supported on the medium support unit; and a negative pressure generating unit configured and arranged to generate the negative pressure to the medium support unit, the medium support unit including a plurality of first recesses arranged on the medium support surface with the first recesses being in communication with the negative pressure generating unit, and a plurality of second recesses arranged on the medium support surface so that the first recesses and the second recesses are aligned in a width direction orthogonal to a transport direction, the second recesses being configured and arranged to accept the liquid ejected from the liquid ejection head, each of the second recesses includes a communication unit communicating with one of the first recesses and a vent hole configured and arranged to allow ventilation without being in communication with the negative pressure generating unit.