Patent ID: 8109589

Claim:
A liquid discharging device comprising: a liquid discharging head which discharges liquid from nozzle orifices by being driven by a discharge driver; a drive signal generator which generates a drive pulse for driving the discharge driver; a liquid receiving portion which is placed so as to face a nozzle-formed surface of the liquid discharging head and receives liquid discharged from the nozzle orifices; an electrical change detector which acquires electrical change information by detecting change in an electrical characteristic between a conductive portion of the liquid discharging head and the liquid receiving portion when liquid is discharged from the nozzle orifices to the liquid receiving portion in a state in which a voltage is applied between the conductive portion and the liquid receiving portion; and a correlation information storing portion which stores correlation information which shows correlation between the electrical change information and temperatures of liquid discharged from the nozzle orifices, wherein the drive signal generator generates an information acquiring drive pulse used in electrical change information acquiring processing performed by the electrical change detector, wherein the correlation information which shows correlation between the electrical change information obtained when discharging the liquid using the information acquiring drive pulse and the temperatures of the liquid is preliminarily stored in the correlation information storing portion, and wherein, on the basis of the correlation information, the temperature of the liquid corresponding to the electrical change information obtained in the electrical change information acquiring processing is estimated as an estimated liquid temperature and the drive pulse is corrected according to the estimated liquid temperature.