Liquid ejecting head inspection apparatus, liquid ejecting apparatus, and inspection method of liquid ejecting head inspection apparatus
AssigneeSeiko Epson Corporation
InventorEiichiro Watanabe
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AssigneeSeiko Epson Corporation
InventorEiichiro Watanabe
Estimating the term…
A liquid ejecting head inspection apparatus detects malfunction of a liquid ejecting head that discharges liquid droplets. The liquid ejecting head inspection apparatus includes a liquid droplet landing portion on which a discharged liquid droplet can land. An electric change detecting unit detects an electric change in the liquid droplet landing portion. A controlling unit supplies a discharging drive signal to a driving element for discharging a liquid droplet, generates a potential difference between the discharged liquid droplet and the liquid droplet landing portion, and detects landing of the liquid droplet based on activity of the electric change detecting unit. A non-landing unit ensures that no liquid droplet lands on the liquid droplet landing portion when the discharging drive signal is applied to the driving element. A judging unit judges whether the liquid ejecting head inspection apparatus functions properly based on activity of the electric change detecting unit.
A liquid ejecting head inspection apparatus for detecting malfunction of a liquid ejecting head that discharges a liquid droplet from a nozzle opening as a result of driving operation of a driving element, the liquid ejecting head inspection apparatus comprising:
An inspection method of a liquid ejecting head inspection apparatus, a liquid ejecting head discharging a liquid droplet from a nozzle opening as a result of driving operation of a driving element, the liquid droplet discharged by the liquid ejecting head from the nozzle opening landing on or into a liquid droplet landing portion, a potential difference being generated between the liquid droplet discharged from the nozzle opening and the liquid droplet landing portion, an electric change being detected when the liquid droplet lands on or into the liquid droplet landing portion, the landing of the liquid droplet on or into the liquid droplet landing portion being detected on the basis of electric change detection, the inspection method comprising:
Dependencies are inferred from the claim text.