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US 11,312,150 B2Granted
Liquid surface imaging device and liquid discharge apparatus
AssigneeRicoh Company, Ltd.
InventorYuta Moriwaki
Life of this patent
Estimating the term…
Abstract
A liquid surface imaging device includes an irradiator including a plurality of lightings, the irradiator configured to irradiate a liquid surface in a nozzle of a liquid discharge head with lights emitted from the plurality of lightings, and an imaging device configured to image the liquid surface. The plurality of lightings is arranged point-asymmetrically with a center of the imaging device as a point of symmetry.
Claims20
A liquid surface imaging device comprising:
- an irradiator including a plurality of lightings, the irradiator configured to irradiate a liquid surface in a nozzle of a liquid discharge head with light emitted from the plurality of lightings;
- and
- an imaging device configured to image the liquid surface,
- wherein the plurality of lightings is arranged point-asymmetrically with a center of the imaging device as a point of symmetry.
1 more element
A liquid surface imaging device comprising:
- an irradiator including a plurality of lightings, the irradiator configured to irradiate a liquid surface in a nozzle of a liquid discharge head with light emitted from the plurality of lightings;
- and
- an imaging device configured to image the liquid surface,
- wherein the plurality of lightings is arranged point-symmetrically with a center of the imaging device as a point of symmetry, and
- the irradiator is configured to individually turn off a part of the plurality of lightings and turn on the other part of the plurality of lightings.
2 more elements
A liquid surface imaging device comprising:
- an irradiator including a belt-shaped lighting, the irradiator configured to irradiate a liquid surface in a nozzle of a liquid discharge head with light emitted from the belt-shaped lighting;
- and
- an imaging device configured to image the liquid surface,
- wherein the belt-shaped lighting has a shape point-asymmetric with a center of the imaging device as a point of symmetry.
1 more element
Dependencies are inferred from the claim text.