US 12,134,272 B2
Liquid discharge apparatus
Tsuyoshi Wasamoto, Nagano (JP)
Assigned to Seiko Epson Corporation, Tokyo (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Dec. 27, 2022, as Appl. No. 18/146,475.
Claims priority of application No. 2021-213935 (JP), filed on Dec. 28, 2021.
Prior Publication US 2023/0211606 A1, Jul. 6, 2023
Int. Cl. B41J 2/045 (2006.01); B41J 2/14 (2006.01)
CPC B41J 2/14088 (2013.01) [B41J 2/04563 (2013.01); B41J 2/14072 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A liquid discharge apparatus for forming an image on a medium by discharging a liquid, comprising:
a first discharge head that discharges a liquid;
a first liquid supply section that supplies a liquid to the first discharge head;
a first heating element that is at least partially in contact with the first liquid supply section;
a wiring substrate having a first surface, a second surface different from the first surface, and a first propagation wiring through which a first drive current supplied to the first heating element propagates; and
a first temperature indicating section provided in the first surface, wherein
the first temperature indicating section indicates that a temperature of the first temperature indicating section is lower than a first threshold value in a first state, and indicates that the temperature of the first temperature indicating section is equal to or higher than the first threshold value in a second state, and the first state and the second state change reversibly, and
at least a part of the first temperature indicating section overlaps at least a part of the first propagation wiring in a normal direction of the wiring substrate.