Inkjet device and controlling method for inkjet device

摘要

An inkjet recording device includes an inkjet head that is equipped with a nozzle to discharge ink, an ink flow path connected to this inkjet head, an adjustment unit that adjusts the pressure in the ink flow path, and a maintenance unit that wipes the nozzle of the inkjet head, and a control unit that executes a maintenance mode of the inkjet head by controlling the adjustment unit and the maintenance unit. The control unit controls the maintenance unit to wipe the nozzle after the adjustment unit adjusts the pressure inside the ink flow path to a first positive pressure, and then again, after the adjustment unit adjusts the pressure in the ink flow path to a first negative pressure. The control unit further controls the adjustment unit to adjust the pressure in the flow path to a second negative pressure that is smaller than the first negative pressure.

主权项

1. An inkjet recording device comprising:
an inkjet head that is equipped with a nozzle for discharging ink; a flow path configured to supply ink to the inkjet head; a pressure adjustment unit configured to adjust a pressure inside the flow path; a maintenance unit configured to wipe the nozzle of the inkjet head; and a controller configured to execute a maintenance mode of the inkjet head by controlling the pressure adjustment unit and the maintenance unit, wherein the controller in the maintenance mode is configured to: control the maintenance unit to wipe the nozzle of the inkjet head after the pressure adjustment unit adjusts the pressure inside the flow path to a first positive pressure, and then control the maintenance unit to wipe the nozzle of the inkjet head again after the pressure adjustment unit adjusts the pressure inside the flow path to a first negative pressure, and control the pressure adjustment unit to adjust the pressure inside the flow path to a second negative pressure that is smaller than the first negative pressure.