Patent ID: 9028021
Filing Date: 2015-05-12
Classification: B41J

Abstract:
1. An inkjet recording apparatus comprising: a recording head configured to perform a recording operation to discharge ink; a carriage configured to move with the recording head mounted thereon; a main tank configured to store ink; a sub-tank configured to be supplied ink from the main tank; a hollow tube that connects the main tank and the sub-tank; a supply tube configured to supply ink from the sub-tank to the recording head, the supply tube moves by following a movement of the carriage; a supply unit connected to the supply tube and configured to perform a supply operation to supply ink from the main tank to the sub-tank; and a control unit configured to control acceleration of the carriage such that a dynamic pressure of ink inside the supply tube becomes greater than a pressure resistance to an ink movement and a pressure resistance to an air movement in the hollow tube; wherein the control unit stops the recording operation and makes the supply unit perform the supply operation based on an ink volume of the main tank and an ink volume of the sub-tank.