INKJET DEVICE AND CONTROLLING METHOD FOR INKJET DEVICE
First Claim
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, andcontrol 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.
1 Assignment
0 Petitions
Accused Products
Abstract
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.
10 Citations
20 Claims
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1. An inkjet recording device comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 16)
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10. A control method for an inkjet recording device having an inkjet head that is equipped with a nozzle for discharging ink, comprising:
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adjusting a pressure applied to ink inside a flow path that supplies ink to the inkjet head to a first positive pressure; wiping a surface of the nozzle; adjusting the pressure applied to the ink inside the flow path to a first negative pressure; wiping the surface of the nozzle; and adjusting the pressure applied to the ink inside the flow path to a second negative pressure that is smaller than the first negative pressure. - View Dependent Claims (11, 12, 13, 14, 15)
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17. An inkjet recording device comprising:
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an inkjet head having an ink discharge nozzle; an ink flow path to the inkjet head; a pressure adjustment valve installed along the ink flow path; a maintenance unit configured to wipe the ink discharge nozzle; and a controller configured to; control the pressure adjustment valve to adjust the pressure inside the flow path to a first positive pressure and then cause the maintenance unit to wipe the ink discharge nozzle, and control the pressure adjustment valve to adjust the pressure inside the flow path to a first negative pressure and then cause the maintenance unit to wipe the ink discharge nozzle, and control the pressure adjustment valve to adjust the pressure inside the flow path to a second negative pressure that is smaller than the first negative pressure. - View Dependent Claims (18, 19, 20)
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Specification