US 12,134,270 B2
Maintenance method of liquid discharging apparatus
Kenichiro Matsuo, Matsumoto (JP)
Assigned to SEIKO EPSON CORPORATION, (JP)
Filed by Seiko Epson Corporation, Tokyo (JP)
Filed on Jan. 24, 2022, as Appl. No. 17/582,323.
Claims priority of application No. 2021-009357 (JP), filed on Jan. 25, 2021.
Prior Publication US 2022/0234351 A1, Jul. 28, 2022
Int. Cl. B41J 2/045 (2006.01); B41J 2/165 (2006.01)
CPC B41J 2/04571 (2013.01) [B41J 2/04581 (2013.01); B41J 2/1652 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A maintenance method for a liquid discharging apparatus including a discharging portion that discharges liquid, the maintenance method comprising:
acquiring first viscosity information related to viscosity of the liquid inside the discharging portion;
discharging a first amount of the liquid from the discharging portion;
acquiring second viscosity information related to viscosity of the liquid inside the discharging portion; and
discharging a second amount of the liquid based on the first viscosity information and the second viscosity information, from the discharging portion,
wherein the second amount is determined based on the first viscosity information, the second viscosity information, target viscosity information related to viscosity in a state in which the liquid inside the discharging portion is not thickened, on a difference value between the first viscosity information and the second viscosity information, a difference value between the second viscosity information and the target viscosity information, and the first amount, and
wherein the first viscosity information is acquired after the maintenance process starts and before the first amount of the liquid is discharged from the discharging portion.