Patent ID: 8757793
Filing Date: 2014-06-24
Classification: B41J

Abstract:
1. A liquid ejection device comprising: a transport unit configured and arranged to transport an ejection medium in a transport direction; a medium support unit including a negative pressure chamber and a medium support surface so that the ejection medium transported by the transport unit is supported on the medium support surface by suction using a negative pressure of the negative pressure chamber, the negative pressure chamber having a first negative chamber part and a second negative chamber part, the medium support unit further including a first wall and a second wall, the first wall partitioning the first negative chamber part and the second negative chamber part in a width direction orthogonal to the transport direction, the second wall opposing the first wall in the width direction, the first negative chamber part being defined by at least the medium support surface, the first wall, and the second wall; 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 negative pressure chamber of the medium support unit, the medium support unit further including the adjacent first recess and the second recess being disposed between the first wall and the second wall in the width direction such that both of the adjacent first recess and the second recess are disposed between a first hypothetical plane and a second hypothetical plane, the first hypothetical plane and the second hypothetical plane extending along the first wall and the second wall, respectively.