US 12,151,483 B2
Liquid discharge apparatus
Maki Kato, Tokyo (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Nov. 21, 2022, as Appl. No. 18/057,668.
Claims priority of application No. 2021-192910 (JP), filed on Nov. 29, 2021.
Prior Publication US 2023/0166521 A1, Jun. 1, 2023
Int. Cl. B41J 2/175 (2006.01)
CPC B41J 2/17566 (2013.01) 6 Claims
OG exemplary drawing
 
1. A liquid discharge apparatus comprising:
a substrate;
a discharge port configured to discharge ink;
a flow path forming member formed on the substrate and in which a flow path configured to supply liquid to the discharge port is formed;
a detection unit arranged between the substrate and the flow path forming member and formed of a material of which an electrical resistance value changes by contacting the liquid; and
a measurement unit configured to measure the electrical resistance value of the detection unit.