An ink circulation device comprising: a first flow channel pipe a secondary side of which is connected to an ink discharge head configured to discharge an ink; a first pump provided in the first flow channel pipe; a first diameter expanded portion provided in the first flow channel pipe on the secondary side of the first pump, the first diameter expanded portion including a flow channel cross-sectional area larger than a flow channel cross-sectional area of the first flow channel pipe; a second flow channel pipe a primary side of which is connected to the ink discharge head; a second pump provided in the second flow channel pipe; a second diameter expanded portion provided in the second flow channel pipe on the primary side of the second pump, the second diameter expanded portion including a flow channel cross-sectional area larger than a flow channel cross-sectional area of the second flow channel pipe; a heater provided on the secondary side of the first pump and the primary side of the first diameter expanded portion and configured to heat the ink flowing through the first flow channel pipe; a heater temperature sensor provided on the heater and configured to detect a temperature of the heater; a temperature sensor provided on the second diameter expanded portion and configured to detect a temperature of the ink in the second diameter expanded portion: a storage unit configured to store a target temperature of the ink and an upper limit temperature of the heater; and a control unit configured to control the heater based on results of comparing a detected value detected by the temperature sensor and the target temperature, and comparing a heater temperature detected by the heater temperature sensor and the upper limit temperature of the heater. a first flow channel pipe a secondary side of which is connected to an ink discharge head configured to discharge an ink; a first pump provided in the first flow channel pipe; a first diameter expanded portion provided in the first flow channel pipe on the secondary side of the first pump, the first diameter expanded portion including a flow channel cross-sectional area larger than a flow channel cross-sectional area of the first flow channel pipe; a second flow channel pipe a primary side of which is connected to the ink discharge head; a second pump provided in the second flow channel pipe; a second diameter expanded portion provided in the second flow channel pipe on the primary side of the second pump, the second diameter expanded portion including a flow channel cross-sectional area larger than a flow channel cross-sectional area of the second flow channel pipe; a heater provided on the secondary side of the first pump and the primary side of the first diameter expanded portion and configured to heat the ink flowing through the first flow channel pipe; a heater temperature sensor provided on the heater and configured to detect a temperature of the heater; a temperature sensor provided on the second diameter expanded portion and configured to detect a temperature of the ink in the second diameter expanded portion: a storage unit configured to store a target temperature of the ink and an upper limit temperature of the heater; and a control unit configured to control the heater based on results of comparing a detected value detected by the temperature sensor and the target temperature, and comparing a heater temperature detected by the heater temperature sensor and the upper limit temperature of the heater. a storage unit configured to store a target temperature of the ink and an upper limit temperature of the heater; and a control unit configured to control the heater based on results of comparing a detected value detected by the temperature sensor and the target temperature, and comparing a heater temperature detected by the heater temperature sensor and the upper limit temperature of the heater. <EOS>