Patent ID: 6676237
Filing Date: 2004-01-13
Classification: B41J

Abstract:
An ink jet recording apparatus, comprising:a recording head, from which ink drops are ejected; a cartridge holder, on which an ink cartridge for supplying ink to the recording head is detachably mounted; a calculator, which performs calculation of an ink amount consumed by the recording head; a first counter, which updates a residual ink amount in the mounted ink cartridge based on the consumed ink amount calculated by the calculator; a monitor, which monitors an ink amount contained in the mounted ink cartridge to judge at least an ink-end state in which the ink amount in the ink cartridge is a predetermined amount or less; and a corrector, which corrects the calculation in the calculator based on a difference between the ink amount contained in the ink cartridge monitored by the monitor and the residual ink amount indicated by the first counter, when the monitor judges that the mounted ink cartridge is in the ink-end state.