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US 11,780,221 B2Granted
Liquid ejection device
AssigneeSeiko Epson Corporation
InventorsYuji Saito, Yasuyoshi Hama, Hideki Kojima
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Abstract
A liquid ejection device includes: an ejecting unit configured to eject a liquid from a nozzle in a first direction; and a light source unit configured to emit light in a first optical path and a second optical path which are arranged such that the first optical path and the second optical path intersect on an extension line in the first direction from the nozzle. With the liquid ejection device having such a configuration, it becomes easy to eject the liquid at a position having a preferable interval with respect to an object.
Claims10
A liquid ejection device, comprising:
- an ejecting unit configured to eject a liquid from a nozzle in a first direction, wherein
- the ejecting unit has a configuration in which the liquid is continuously ejected from the nozzle, and
- the liquid in a continuous state is formed into a droplet at a droplet formation position on an extension line in the first direction from the nozzle;
- and
- a light source unit comprising:
- a first light irradiation unit configured to emit light in a first optical path, and
- a second light irradiation unit configured to emit light in a second optical path, wherein
- the first light irradiation unit and the second light irradiation unit are arranged such that the first optical path and the second optical path intersect on the extension line, and
- the light source unit has a configuration in which both the first light irradiation unit and the second light irradiation unit are fixed to an arm unit at a predetermined angle, and are movable in a movement direction that is a direction along the first direction in which the liquid is ejected by the ejecting unit.
6 more elements
Dependencies are inferred from the claim text.