Patent ID: 8398189

Claim:
A liquid discharge apparatus which discharges a liquid accommodated in a liquid cartridge, comprising: a cartridge attaching section to which the liquid cartridge is attached, the liquid cartridge being one of a first liquid cartridge belonging to a first size class and a second liquid cartridge belonging to a second size class smaller than the first size class; a liquid discharge head which is formed with a plurality of nozzles to be communicated with the liquid cartridge under a condition that the liquid cartridge is attached to the cartridge attaching section, the liquid discharge head having a plurality of driving sections which correspond to the nozzles and which causes the liquid to be discharged from the nozzles; a purge mechanism which performs a purge operation in which the liquid is discharged forcibly from the nozzles; and a purge control unit which controls the purge mechanism to perform the purge operation so that a forcible ink discharge amount in a period of time in a case in which the first liquid cartridge belonging to the first size class is attached to the cartridge attaching section is smaller than a forcible ink discharge amount in the period of time in a case in which the second liquid cartridge belonging to the second size class is attached to the cartridge attaching section.