| 摘要 |
In order to perform recording head maintenance by discharge and reflux of ink with higher pressures without creating instability of the meniscus in the nozzle surface, this image forming device (1) is provided with a recording head (241) having multiple nozzles (2411), a first reservoir unit (242) and a second reservoir unit (243) which store the ink supplied to the recording head (241), a supply unit (301) which is opened and closed by a solenoid valve (310) and connects the recording head (241) and the first reservoir unit (242), a pump (P1) which supplies the ink in the second reservoir unit (243) to the first reservoir unit (242), a recovery passage (302) which is opened and closed by solenoid valves (307, 308) and connects the recording head (241) and the second reservoir unit (243), and a control unit (40) which controls operation of the solenoid valves and the pump (P1). The control unit (40) closes the connection between the first reservoir (242) and a pressure control unit (305), closes the recovery path (302), and supplies to the first reservoir unit (242) the ink stored in the second reservoir unit (243). |
