US 11,813,868 B2
Liquid discharge device and maintenance method of liquid discharge device
Masato Haga, Shiojiri (JP); Tadahiro Mizutani, Shiojiri (JP); and Yasuaki Hirai, Shiojiri (JP)
Assigned to SEIKO EPSON CORPORATION, Tokyo (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Dec. 21, 2021, as Appl. No. 17/557,740.
Claims priority of application No. 2020-212370 (JP), filed on Dec. 22, 2020.
Prior Publication US 2022/0194083 A1, Jun. 23, 2022
Int. Cl. B41J 2/165 (2006.01)
CPC B41J 2/165 (2013.01) [B41J 2/16532 (2013.01); B41J 2002/16573 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A liquid discharge device, comprising:
a discharge unit configured to discharge liquid;
a maintenance unit configured to perform maintenance of the discharge unit by discharging liquid from the discharge unit; and
a control unit configured to cause the maintenance unit to perform the maintenance periodically, wherein
when performing the maintenance, the control unit performs first maintenance in a case in which a consumption amount of the liquid consumed after the maintenance previously performed is greater than or equal to a first threshold value, and performs second maintenance stronger than the first maintenance in a case in which the consumption amount is less than the first threshold value.