US 12,145,378 B2
Liquid ejection apparatus
Hiroshi Koshikawa, Kanagawa (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Oct. 14, 2022, as Appl. No. 17/966,509.
Claims priority of application No. 2021-176496 (JP), filed on Oct. 28, 2021.
Prior Publication US 2023/0135411 A1, May 4, 2023
Int. Cl. B41J 2/175 (2006.01); G01F 23/76 (2006.01)
CPC B41J 2/17566 (2013.01) [G01F 23/76 (2013.01); B41J 2002/17576 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A liquid ejection apparatus comprising:
a liquid ejection head configured to eject a liquid; and
a plurality of storage units configured to store a liquid to be supplied to the liquid ejection head,
each of the storage units comprising:
a pivot member immersed in a stored liquid and pivotally movable according to an amount of the liquid; and
a detection unit configured to detect an amount of the liquid stored in the storage unit using the pivot member,
wherein the plurality of storage units includes a first storage unit storing a first liquid and comprising a first pivot member, and a second storage unit storing a second liquid different in specific gravity from the first liquid and comprising a second pivot member, and
wherein at least one of a specific gravity and size of the second pivot member differs from that of the first pivot member.