INK REMAINING AMOUNT CALCULATION METHOD AND DEVICE, AND INK CONTAINER

摘要

An ink remaining amount calculation method calculates an ink discharge amount according to the rpm of a drive motor of an ink supply pump for sucking ink from an ink container and discharging the ink and calculates the ink remaining amount by subtracting the ink discharge amount from the whole (initial) ink amount. Even when a different type of ink is used, it is possible to accurately calculate the ink remaining amount. The ink type data is read out and acquired from storage means (5) of an ink container (4). Remaining amount calculation means (22) corrects the discharge amount of a predetermined standard ink per unit rpm according to the ink type acquired and accumulatively subtracts the corrected discharge amount multiplied by the operation time from the whole ink amount of the ink container (4) so as to obtain the remaining amount.