Patent ID: 7789492
Filing Date: 2010-09-07
Classification: B41J

Abstract:
1. A liquid ejecting apparatus comprising: a plurality of flow channel units, each of which includes pressure generating chambers operable to generate pressure therein and a nozzle plate formed with a plurality of nozzles from which liquid is ejected by the pressure and which are arranged in a plurality of lines being parallel to each other; a plurality of drive units, each of which includes piezoelectric vibrators operable to apply pressure vibration to the pressure generating chambers, and which correspond to the plurality of the flow channel units, respectively; and a head casing, in which the plurality of the drive units are stored, and to which the plurality of the flow channel units are fixed, wherein, the nozzles of a first one of the flow channel units are arranged in a first direction with a pitch, the nozzles of a second one of the flow channel units are arranged in the first direction with the pitch, the first one of the flow channel units and the second one of the flow channel units are arranged in a second direction perpendicular to the first direction and displaced with each other in the first direction by a length, in the first direction, of the nozzles of the first one of the flow channel units, and one of the nozzles of the first one of the flow channel units, which is close to the second one of the flow channel units, and one of the nozzles of the second one of the flow channel units, which is close to the first one of the flow channel units, are arranged in the first direction with the pitch.