The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 31, 2024

Filed:

Sep. 21, 2022
Applicant:

Seiko Epson Corporation, Tokyo, JP;

Inventors:

Keigo Sugai, Chino, JP;

Masaru Kumagai, Shiojiri, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 3/407 (2006.01); B41J 2/045 (2006.01); B41J 2/21 (2006.01); B41J 25/308 (2006.01);
U.S. Cl.
CPC ...
B41J 3/4073 (2013.01); B41J 2/04573 (2013.01); B41J 25/3086 (2013.01); B41J 2/2132 (2013.01);
Abstract

A three-dimensional printing device includes a first head having a first nozzle array that ejects liquid, a second head having a second nozzle array that ejects liquid, and a moving mechanism having a linear motion mechanism that changes relative positions of the heads with respect to a three-dimensional workpiece. The first region of the workpiece is more inclined with respect to the first axis than the second region of the workpiece. A time period when the first nozzle array faces the first region and the second nozzle array faces the second region is a first time period. In the first time period, the first nozzle array ejects the liquid onto the first region in a first ejection cycle. In the first time period, the second nozzle array ejects the liquid onto the second region in a second ejection cycle. The first ejection cycle is shorter than the second ejection cycle.


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