US 12,220,912 B2
Printing apparatus, display method, and display system
Masahiro Owa, Nagano (JP)
Assigned to Seiko Epson Corporation, Tokyo (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Sep. 7, 2022, as Appl. No. 17/930,073.
Claims priority of application No. 2021-146816 (JP), filed on Sep. 9, 2021.
Prior Publication US 2023/0074947 A1, Mar. 9, 2023
Int. Cl. B41J 2/045 (2006.01)
CPC B41J 2/0451 (2013.01) [B41J 2/04586 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A printing apparatus comprising:
a printing head including a plurality of nozzles which are configured to eject an ink pushed out from a pressure chamber by driving of an actuator and to each of which a nozzle number that indicates an arrangement order of the plurality of nozzles is assigned in accordance with a position of each of the plurality of nozzles in the printing head;
a display unit having a display;
a detector configured to generate a residual vibration in the pressure chamber by imparting, to the actuator, a predetermined drive signal that prevents the nozzle from ejecting the ink, and, to perform, based on the residual vibration, defective nozzle detection processing of detecting a defective nozzle having ejection failure, for each of the plurality of nozzles; and
a display control unit configured to display, in the display, defective nozzle information that includes
a defective nozzle position indicating where a defective nozzle that has been detected by the detector is positioned in the printing head, and
the nozzle number that is assigned to the defective nozzle.