Patent ID: 6953243

Claim:
A liquid ejecting head unit comprising: a chip head comprising a plurality of ejection outlets for ejecting droplets; a plurality of flow paths in fluid communication with said ejection outlets; a first common liquid chamber for supplying the liquid to said flow paths; a supply member having a liquid supply path for supplying the liquid to said first common liquid chamber; energy generating elements, provided in the flow paths, for generating energy for ejecting the droplets; a unit frame having a second common liquid chamber for accommodating the liquid to be supplied to said supply member, said unit frame being connected with said chip head; and a filter provided between said chip head and said second common liquid chamber of said unit frame, said filter being directly adjacent to said second common liquid chamber, wherein said first common liquid chamber and said second common liquid chamber are arranged substantially vertically, and the droplets are ejectable downwardly, wherein a cross-sectional area of said second common liquid chamber gradually decreases toward said filter, and wherein a connecting portion between said chip head and said unit frame is disposed upstream of said filter with respect to a direction of flow of the liquid from said second common liquid chamber to said liquid supply path through said filter, wherein said filter is inclined relative to the direction of flow of the liquid, and wherein a maximum cross-sectional area of said liquid supply path occurs at a portion thereof having said filter.