IP Library › Granted Patent US 12,441,100
Granted Patent B2
US 12,441,100 · App. 18/494,890 · Granted Oct 14, 2025

Liquid ejecting apparatus

Inventors: Osamu Katsuda (Matsumoto, JP); Hideki Okada (Shiojiri, JP); Hirokazu Sekino (Chino, JP)
Assignee: SEIKO EPSON CORPORATION
B41J2/04503B41J2/04505
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Quick Facts
Patent No.
US 12,441,100
App. No.
18/494,890
Granted
Oct 14, 2025
Kind
B2
Abstract

A liquid ejecting apparatus includes: a conveyer configured to convey a medium in a conveyance direction; a carriage configured to move in a reciprocating direction intersecting the conveyance direction at a position facing the medium conveyed in the conveyance direction; and a head provided on the carriage and including at least one nozzle configured to eject liquid to the medium, in which the head ejects the liquid in a continuous flow, converts the continuous flow into a plurality of droplets and causes the a plurality of droplets to collide with the medium.

Claims (27)

1. A liquid ejecting apparatus comprising:

a conveyer configured to convey a medium in a conveyance direction;

a carriage configured to move in a reciprocating direction intersecting the conveyance direction at a position facing the medium conveyed in the conveyance direction; and

a head provided on the carriage and including at least one nozzle configured to eject liquid to the medium, wherein

the head ejects the liquid in a continuous flow, converts the continuous flow into a plurality of droplets, and causes the plurality of droplets to collide with the medium.

2. The liquid ejecting apparatus according to claim 1 , further comprising:

a liquid storage configured to store the liquid; and

a pump configured to send the liquid from the liquid storage to the head.

3. The liquid ejecting apparatus according to claim 1 , wherein

the carriage is moved in the reciprocating direction relative to the medium conveyed by the conveyer while the liquid is ejected from the head to the medium.

4. The liquid ejecting apparatus according to claim 1 , wherein

the conveyer is configured to intermittently convey the medium by repeating conveyance and stop of the medium, and

the carriage is moved in the reciprocating direction while the liquid is ejected from the head to the medium during stop of intermittent conveyance of the medium.

5. The liquid ejecting apparatus according to claim 1 , further comprising:

a carriage moving shaft configured to move the carriage along the conveyance direction, wherein

the carriage is configured to be movable in the reciprocating direction together with the carriage moving shaft.

6. The liquid ejecting apparatus according to claim 1 , wherein

the head includes a nozzle row in which a plurality of the nozzles are arranged along the conveyance direction.

7. The liquid ejecting apparatus according to claim 6 , wherein

the carriage is moved in the reciprocating direction relative to the medium conveyed by the conveyer while the liquid is ejected from the head to the medium, and

a length of a region where the liquid landed in the medium in the conveyance direction is larger than a conveyance distance in the conveyance direction of the medium that is conveyed along with one movement of the carriage in the reciprocating direction.

8. The liquid ejecting apparatus according to claim 1 , wherein

the plurality of nozzles is disposed in a circular shape in the head.

9. The liquid ejecting apparatus according to claim 1 , wherein

an inner diameter of the nozzle is 150 μm or less.

10. The liquid ejecting apparatus according to claim 1 , wherein

an ejection speed of the liquid from the head is 10 m/s or more.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 26, 2023
From: KATSUDA, OSAMU; OKADA, HIDEKI; SEKINO, HIROKAZU
To: SEIKO EPSON CORPORATION
Reel/Frame 065353/0302 →
Priority Claims (1)
JP 2022-172014 · Oct 27, 2022 · national
Continuity (1)
Related Publication 20240140085A1 · May 2, 2024
References Cited (3)
US 20230382451A1 · Knaub · 2023 [cited by examiner]
EP 0081134A1 · 1983 [cited by applicant]
JP S58098485A · 1983 [cited by applicant]