公开(公告)号：US20230302796A1

公开(公告)日：2023-09-28

申请号：US18125220

申请日：2023-03-23

申请人： CANON KABUSHIKI KAISHA

发明人： Takuro YAMAZAKI ,  Yoshiyuki NAKAGAWA ,  Akiko HAMMURA ,  Atsushi TERANISHI

IPC分类号： B41J2/14 ,  B41J2/16

CPC分类号： B41J2/14233 ,  B41J2/161 ,  B41J2002/14266 ,  B41J2002/14241 ,  B41J2002/14306

摘要： A liquid ejection head includes a plurality of nozzles arranged along a first direction of an ejection surface, a plurality of pressure chambers communicating with the plurality of individual nozzles and provided with actuators configured to apply, to a liquid, pressures for ejecting the liquid from the nozzles, a plurality of discrete flow paths communicating with the plurality of individual pressure chambers, a common flow path communicating with the plurality of individual discrete flow paths via discrete opening portions and extending in the first direction, and a damper mechanism disposed to face the common flow path in a direction crossing the ejection surface to absorb a pressure fluctuation in the liquid in the common flow path. The common flow path is provided with a partition wall disposed between the discrete opening portions adjacent in the first direction to extend in the direction crossing the ejection surface.