INKJET RECORDING DEVICE AND METHOD OF DETECTING REMAINING AMOUNT OF INK

摘要

A method of detecting the remaining amount of ink, capable of detecting the exact status of the remaining amount of ink in an ink tank even if there is an error in the result of detection by an optical detection mechanism that optically detects whether the remaining amount of ink in the ink tank is equal to or less than a predetermined amount. The method of detecting the remaining amount of ink has a first determination step for determining, by using an optical sensor, whether the remaining amount of ink in an ink tank is equal to or less than a predetermined value, and also has a second determination step for determining, based on information on the amount of ink consumed from the ink tank, whether the remaining amount of ink in the ink tank is equal to or less than the predetermined value. When it is determined by either of the first and second determination steps that there is no ink, the method annunciates information representing that there is no ink.