US 12,257,842 B2
Liquid discharge apparatus, imprint apparatus, and cleaning method
Masaki Ishida, Tochigi (JP); Noriyasu Hasegawa, Tochigi (JP); and Moena Oku, Tochigi (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Dec. 2, 2022, as Appl. No. 18/074,131.
Claims priority of application No. 2021-203603 (JP), filed on Dec. 15, 2021.
Prior Publication US 2023/0182473 A1, Jun. 15, 2023
Int. Cl. B41J 2/165 (2006.01)
CPC B41J 2/16552 (2013.01) [B41J 2/16505 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A liquid discharge apparatus comprising
a discharge head including a discharge surface formed with a plurality of discharge openings from which a liquid is discharged,
a cap configured to be detachably attached to the discharge head and form a holding space for a cleaning liquid such that the cleaning liquid contacts the discharge surface,
a supply portion configured to connect to the cap and to supply the cleaning liquid to the holding space, and
an outlet portion configured to connect to the cap and to drain the cleaning liquid from the holding space,
wherein
the supply portion is formed at a position facing the discharge surface,
the outlet portion is formed at a position outside the supply portion in an inside-outside direction of the discharge surface, and
the outlet portion is annularly formed so as to surround the plurality of discharge openings.