US 12,011,926 B2
Liquid discharging head and printing apparatus
Jiro Yamamoto, Nagoya (JP); Yoshitsugu Morita, Nagoya (JP); and Yasuhiro Sekiguchi, Nagoya (JP)
Assigned to BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed by BROTHER KOGYO KABUSHIKI KAISHA, Nagoya (JP)
Filed on Apr. 20, 2022, as Appl. No. 17/724,596.
Claims priority of application No. 2021-076394 (JP), filed on Apr. 28, 2021.
Prior Publication US 2022/0348012 A1, Nov. 3, 2022
Int. Cl. B41J 2/14 (2006.01)
CPC B41J 2/1433 (2013.01) 10 Claims
OG exemplary drawing
 
1. A liquid discharging head comprising:
a plurality of common liquid chambers each of which extends along a first direction and which is arranged in a second direction orthogonal to the first direction; and
a plurality of individual channels each communicates with one of the plurality of common liquid chambers and each has a nozzle located at a position where the nozzle does not overlap with corresponding one of the plurality of common liquid chambers in a third direction, the third direction being orthogonal to both of the first direction and the second direction;
wherein the liquid discharging head has a first end in the second direction and a second end in the second direction opposite to the first end;
the plurality of common liquid chambers includes an intermediate common liquid chamber and an expanded common liquid chamber, the intermediate common liquid chamber being one of the plurality of common liquid chambers interposed between two of the plurality of common liquid chambers in the second direction, the expanded common liquid chamber being one of the plurality of common liquid chambers closest to the first end among the plurality of common liquid chambers, a length of the expanded common liquid chamber in the second direction being longer than a length of the intermediate common liquid chamber in the second direction;
the nozzles of the plurality of individual channels communicating with the intermediate common liquid chamber are positioned on both sides in the second direction with respect to the intermediate common chamber; and
the nozzles of the plurality of individual channels communicating with the expanded common liquid chamber are positioned in the second direction on a side of the second end with respect to the expanded common liquid chamber, and no nozzle of the plurality of individual channels communicating with the expanded common liquid chamber is positioned in the second direction on a side of the first end with respect to the expanded common liquid chamber.