Inkjet recording apparatus
AssigneeOlympus Corporation
InventorDaisuke SATO
Life of this patent
Estimating the term…
Abstract
An inkjet recording apparatus is provided with an ink head having a nozzle face on which a nozzle for discharging ink is formed, a first tank stored with the ink to be supplied to the ink head through a first ink passage, a second tank stored with the ink not having been discharged from the ink head through a second ink passage, and a third ink passage connecting the second and first tanks. The inkjet recording apparatus is further provided with a pump disposed in the third ink passage and configured to feed the ink from the second tank into the first tank, a fourth ink passage connected in parallel with the pump, and a pressure regulation valve incorporated in the fourth ink passage.
Claims18
An inkjet recording apparatus comprising:
- an ink head having a nozzle face on which a plurality of nozzles for discharging ink are formed;
- a first tank configured to store the ink to be supplied to the ink head;
- a first passage that connects the ink head and the first tank to each other;
- a second tank configured to store the ink not having been discharged from the ink head;
- a second passage that connects the ink head and the second tank to each other;
- a third passage that connects the second tank and the first tank to each other;
- a pump disposed in the third passage and configured to feed the ink from the second tank into the first tank;
- a fourth passage that connects a portion of the third passage upstream of the pump and a portion of the third passage downstream of the pump to each other;
- and
- a pressure regulation valve provided in the fourth passage.
An inkjet recording apparatus comprising:
- an ink head having a nozzle face on which a plurality of nozzles for discharging ink are formed;
- a first tank located above the nozzle face in a gravitational direction and configured to store the ink to be supplied to the ink head;
- a first atmospheric valve for switching the first tank between a sealed state and an atmospheric state;
- a first passage that connects the ink head and the first tank to each other;
- a second tank located below the nozzle face in the gravitational direction and configured to store the ink not having been discharged from the ink head;
- a second atmospheric valve for switching the second tank between a sealed state and an atmospheric state;
- a second passage that connects the ink head and the second tank to each other;
- a third passage that connects the second tank and the first tank to each other;
- a pump disposed in the third passage and configured to feed more ink into the first tank than the ink flowing into the second tank;
- a fourth passage that connects a portion of the third passage upstream of the pump and a portion of the third passage downstream of the pump to each other;
- and
- a pressure regulation valve provided in the fourth passage.
Dependencies are inferred from the claim text.