Liquid ejecting apparatus and ejection inspecting method
AssigneeSeiko Epson Corporation
InventorsYasuhiro Hosokawa, Seiji Izuo
Life of this patent
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Abstract
A liquid ejecting apparatus includes: a head which ejects a liquid from nozzles; a first electrode which charges the liquid with a first potential; a second electrode which is charged with a second potential different from the first potential; and an inspector which inspects whether the liquid is ejected from the nozzles based on a variation in a potential caused in at least one of the first and second electrodes by ejecting the liquid charged with the first potential from the nozzles to the second electrode and which determines whether the inspection of liquid ejection from the nozzles is normally executed based on the variation in the potential during a non-ejection period in which the liquid is not ejected from all of the nozzles.
Claims8
A liquid ejecting apparatus comprising:
- a head which ejects a liquid from nozzles;
- a first electrode which charges the liquid with a first potential;
- a second electrode which is charged with a second potential different from the first potential;
- and
- an inspector which inspects whether the liquid is ejected from the nozzles based on a variation in a potential caused in at least one of the first and second electrodes by ejecting the liquid charged with the first potential from the nozzles to the second electrode and which determines whether the inspection of liquid ejection from the nozzles is normally executed based on the variation in the potential during a non-ejection period in which the liquid is not ejected from all of the nozzles.
An ejection inspecting method comprising:
- charging a liquid to be ejected from nozzles with a first potential by a first electrode;
- ejecting the liquid charged with the first potential from the nozzles to a second electrode charged with a second potential different from the first potential;
- inspecting whether the liquid is ejected from the nozzles based on a variation in a potential caused in at least one of the first and the second electrodes;
- and
- determining whether the inspection of liquid ejection from the nozzles is normally executed based on the variation in the potential during a non-ejection period in which the liquid is not ejected from all of the nozzles.
Dependencies are inferred from the claim text.