Patent ID: 11858266
Assignee: SEIKO EPSON CORPORATION
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 8:
9. A method of maintaining a liquid ejecting apparatus including
a liquid ejecting section that ejects a liquid from a nozzle,
a circulation flow path including a supply flow path through which the liquid is supplied to the liquid ejecting section and a return flow path through which the liquid supplied to the liquid ejecting section is returned,
a warming mechanism including a temperature control module provided in the circulation flow path, the warming mechanism being configured to heat the liquid in the temperature control module,
a state detection unit that detects a state of the liquid ejecting section, the method comprising:
executing a first control that sets a temperature of the liquid in the temperature control module to a set temperature by controlling the warming mechanism and controls a flow mechanism to circulate the liquid in the circulation flow path at a set flow rate,
estimating a viscosity of the liquid in the liquid ejecting section from a detection result detected by the state detection unit when a predetermined time has elapsed during the execution of the first control, and
executing a second control that maintain the set temperature and controls the flow mechanism to circulate the liquid in the circulation flow path by changing the flow rate from the set flow rate to a flow rate corresponding to the estimated viscosity of the liquid.