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US 11,230,095 B2Granted
Method of controlling liquid ejection apparatus and liquid ejection apparatus
AssigneeSeiko Epson Corporation
InventorKenji Tsukada
Life of this patent
Estimating the term…
Abstract
A method of controlling a liquid ejecting apparatus includes detecting an ejection failure of nozzles by inspecting an ejection state of the nozzles from which liquid is ejected, covering the nozzles with a cap when the number of the nozzles whose ejection failure is detected is equal to or less than a predetermined number, and discharging the liquid from the nozzles when the number of the nozzles whose ejection failure is detected is greater than the predetermined number.
Claims11
A method of controlling a liquid ejecting apparatus, the method comprising:
- detecting, by inspecting an ejection state of nozzles from which liquid is ejected, an ejection failure of the nozzles;
- covering the nozzles with a cap when the number of the nozzles whose ejection failure is detected is equal to or less than a predetermined number, the predetermined number being a value of one or more;
- discharging the liquid from the nozzles when the number of the nozzles whose ejection failure is detected is greater than the predetermined number;
- and
- performing a complementary printing which ejects the liquid from normal nozzles adjacent to a failed nozzle when election failure is detected by the detecting portion.
2 more elements
A liquid ejecting apparatus comprising:
- a liquid ejecting head that ejects liquid from a plurality of nozzles;
- a cap configured to cover the nozzles;
- a detecting portion that detects an ejection failure of the nozzles by inspecting an ejection state of the nozzles;
- a maintenance unit that discharges the liquid from the nozzles;
- and
- a controller, wherein
- the controller covers the nozzles with the cap when the number of the nozzles whose ejection failure is detected by the detecting portion is equal to or less than a predetermined number, and discharges the liquid from the nozzles by the maintenance unit when the number of the nozzles whose ejection failure is detected by the detecting portion is greater than the predetermined number, the predetermined number being a value of one or more, and performs a complementary printing which elects the liquid from normal nozzles adjacent to a failed nozzle when ejection failure is detected by the detecting portion.
4 more elements
Dependencies are inferred from the claim text.