Liquid jetting apparatus

摘要

A liquid jetting apparatus includes: a head unit including a liquid jetting head, a regulating member arranged to sandwich the head unit from a nozzle array direction, a restriction mechanism configured to restrict the head unit from displacement in an orthogonal direction perpendicular to the nozzle array direction, and a landing position correction mechanism configured to correct position of landing the liquid jetted from the plurality of nozzles onto the medium in the orthogonal direction. The restriction mechanism restricts a portion of the head unit inside of outmost nozzle arrays in the orthogonal direction.

主权项

1. A liquid jetting apparatus which jets a liquid onto a medium, comprising:
a head unit including a liquid jetting head in which a plurality of nozzles are formed, the plurality of nozzles being aligned in a nozzle array direction to form a plurality of nozzle arrays along an orthogonal direction perpendicular to the nozzle array direction; a regulating member arranged to sandwich the head unit from the nozzle array direction so that the regulating member regulates the head unit from expansion and contraction due to temperature change along the nozzle array direction; a restriction mechanism configured to restrict the head unit from displacement in the orthogonal direction perpendicular to the nozzle array direction under a condition that the head unit is expanding or contracting due to temperature change; and a landing position correction mechanism configured to correct position of landing the liquid jetted from the plurality of nozzles onto the medium in the orthogonal direction under a condition that the head unit is expanding or contracting due to temperature change; wherein the restriction mechanism is arranged inside of outmost nozzle arrays in the orthogonal direction so as to restrict a portion of the head unit inside of the outmost nozzle arrays from displacement in the orthogonal direction.