Patent ID: 7810903

Claim:
A head unit, comprising: a first nozzle group having a plurality of spaced apart first nozzles that discharge liquid as liquid droplets, the first nozzles being uniformly arranged at an approximately equal distance from one another when viewed from a first direction; a second nozzle group having a plurality of spaced apart second nozzles that discharge liquid as liquid droplets, the second nozzles being uniformly arranged at approximately the same equal distance from one another when viewed from the first direction as the first nozzles; wherein the first and second nozzle groups are arranged proximate one another, and the first and second nozzle groups are continued with the same equal distance therebetween in a second direction that intersects with the first direction when viewed from the first direction, wherein adjacent nozzles of the first and second nozzle groups when viewed from the first direction discharge liquid droplets having an approximately equal amount of liquid, wherein the first nozzle group has a first inclination of liquid discharge amount from one end of the first nozzles to an opposite end of the first nozzles, wherein the second nozzle group has a second inclination of liquid discharge amount from one end of the second nozzles to an opposite end of the second nozzles, and wherein the first nozzle group is arranged relative to the second nozzle group such that the first inclination is different than the second inclination.