Patent ID: 7422304

Claim:
A liquid ejecting apparatus, comprising: a liquid ejecting head, comprising: pressure chambers, adapted to contain liquid; nozzle orifices, respectively communicated with the pressure chambers and arranged so as to form nozzle arrays; and pressure generating elements, each of which is operable to generate pressure fluctuation in the liquid contained in one of the pressure chambers to eject at least a first amount of a liquid droplet and a second amount of a liquid droplet, which is different from the first amount, from one of the nozzle orifices toward a target medium; a first storage, storing first information indicative of a first deviation of the first amount from a first reference amount for each of the nozzle arrays; a second storage, storing second information indicative of a correlation between the first deviation and a second deviation of the second amount from a second reference amount different from the first reference amount; and a processor, operable to calculate the second deviation for each of the nozzle arrays with reference to the first information and the second information.