Patent ID: 8430469

Claim:
A liquid discharging apparatus which discharges a liquid filled in a liquid storage chamber formed in a liquid cartridge, the apparatus comprising: a liquid discharging head having a plurality of nozzles which are formed in the liquid discharging head and through which the liquid is discharged; a cartridge attaching section which is connected to the liquid discharging head and in which the liquid cartridge filled with the liquid to be supplied to the liquid discharging head is attached detachably; a liquid channel extending from the cartridge attaching section to the nozzles; a filter provided on the liquid channel at an intermediate portion thereof to capture a foreign substance existing in the liquid in the liquid channel; a parameter determining mechanism which, based on a cumulative usage number of the liquid cartridge corresponding to a number of change of the liquid cartridge, determines a value of a parameter, a value of which becomes larger as the cumulative usage number becomes larger; and a controller which controls the liquid discharging head to decrease an amount of the liquid discharged from the liquid discharging head per unit time as the value of the parameter becomes larger.