Liquid ejecting apparatus
AssigneeSeiko Epson Corporation
InventorShinichi Tsubota
Life of this patent
Estimating the term…
Abstract
A liquid ejecting apparatus carries out preliminary discharging in which the liquid is discharged from nozzle rows toward a cap. In preliminary discharging, the liquid ejecting apparatus intermittently carries out concurrent discharging and concurrent non-discharging from the nozzles in the first nozzle row and the second nozzle row in such a way that when concurrent discharging is performed from the nozzles in the first nozzle row, concurrent non-discharging from the nozzles in the second nozzle row is performed, and when concurrent discharging is performed from the nozzles in the second nozzle row, concurrent non-discharging from the nozzles in the first nozzle row is performed.
Claims7
A liquid ejecting apparatus comprising:
- a liquid ejecting head having a plurality of nozzle rows in which nozzles that discharge a liquid are arranged in rows;
- a pressure generating unit that causes a pressure change in a flow path communicating with the nozzles so that the liquid is discharged from the nozzles;
- a cap that covers the plurality of nozzle rows;
- and
- a controller that controls driving of the pressure generating unit and causes the liquid to be ejected from the nozzles;
- wherein
- the controller carries out preliminary discharging in which the liquid is discharged from the plurality of nozzle rows toward the cap, and
- the controller controls a first preliminary discharging mode so as to be executable so that, in preliminary discharging from a first nozzle row and a second nozzle row constituting the plurality of nozzle rows, the controller intermittently carries out concurrent discharging and concurrent non-discharging from the nozzles in the first nozzle row and the second nozzle row in such a way that when concurrent discharging is performed from the nozzles in the first nozzle row, concurrent non-discharging from the nozzles in the second nozzle row is performed, and when concurrent discharging is performed from the nozzles in the second nozzle row, concurrent non-discharging from the nozzles in the first nozzle row is performed.
Dependencies are inferred from the claim text.