US 12,220,917 B2
Head unit and liquid ejecting apparatus
Taiki Hanagami, Matsumoto (JP)
Assigned to SEIKO EPSON CORPORATION, (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Dec. 19, 2022, as Appl. No. 18/083,890.
Claims priority of application No. 2021-205746 (JP), filed on Dec. 20, 2021.
Prior Publication US 2023/0191785 A1, Jun. 22, 2023
Int. Cl. B41J 2/14 (2006.01); B41J 2/175 (2006.01); B41J 2/18 (2006.01)
CPC B41J 2/14201 (2013.01) [B41J 2/175 (2013.01); B41J 2/18 (2013.01); B41J 2002/14241 (2013.01); B41J 2002/14419 (2013.01); B41J 2202/19 (2013.01); B41J 2202/20 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A head unit comprising:
heads including
a first head including a first flow channel, and
a second head located adjacent to the first head and including a second flow channel;
a common flow channel member being stacked on the heads and including common flow channels including a first common flow channel that communicates with the first and second flow channels;
flexible members including
a first flexible member disposed between the first head and the common flow channel member, and
a second flexible member disposed between the second head and the common flow channel member; and
fixation members for fixing the common flow channel member, the first and second heads, and the first and second flexible members together, wherein
the first flexible member establishes liquid-tight communication between the first flow channel and the first common flow channel by being compressed in a stacking direction of the heads and the common flow channel member,
the second flexible member establishes liquid-tight communication between the second flow channel and the first common flow channel by being compressed in the stacking direction, and
the fixation members include a first fixation member disposed between the first flexible member and the second flexible member in plan view being viewed in the stacking direction.