Patent ID: 9022524
Filing Date: 2015-05-05
Classification: B41J

Abstract:
1. A liquid ejecting head unit comprising: a first nozzle group including a plurality of nozzles; a second nozzle group including a plurality of nozzles different from the nozzles of the first nozzle group; a first flow path substrate including a first pressure chamber group including a plurality of first pressure chambers that eject a liquid from the nozzles of the first nozzle group upon being subjected to a pressure; a second flow path substrate, which is a different structure than the first flow path substrate, including a second pressure chamber group including a plurality of second pressure chambers that eject a liquid from the nozzles of the second nozzle group upon being subjected to a pressure, the second flow path substrate being different from the first flow path substrate; and a supply substrate including a first liquid supply path through which the liquid is supplied to the first pressure chamber group, and a second liquid supply path through which the liquid is supplied to the second pressure chamber group, the supply substrate being stacked between the first flow path substrate and a nozzle plate defining the first nozzle group or the second nozzle group, and being stack between the second flow path substrate and the nozzle plate.