Patent ID: 9016843
Filing Date: 2015-04-28
Classification: B41J

Abstract:
1. An inkjet printer comprising: an inkjet head configured to eject ink to a print medium; an ink circulation passage including an ink tank configured to store the ink, the ink circulation passage being configured to circulate the ink between the inkjet head and the ink tank; a liquid level detector provided in the ink tank and configured to detect whether a liquid level of the ink in the ink tank has reached or exceeded a liquid level corresponding to an ink circulation standard amount being a standard for ink circulation; an ink bottle configured to supply the ink to the ink tank; an ink amount calculator configured to calculate a total ink amount in the ink circulation passage on a basis of the ink circulation standard amount and a consumption amount of the ink ejected by the inkjet head; a determiner configured to, when the liquid level detector detects that the liquid level of the ink in the ink tank is lower than the liquid level corresponding to the ink circulation standard amount, determine whether the total ink amount calculated by the ink amount calculator is less than an ink circulation necessary amount being an amount necessary for circulation of the ink in the ink circulation passage; and a controller configured to, when the determiner determines that the total ink amount is less than the ink circulation necessary amount, perform ink supply amount control to supply the ink from the ink bottle to the ink tank in such an amount that the total ink amount is kept below the ink circulation standard amount.