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.
Patent No.:
Date of Patent:
Oct. 28, 2025
Filed:
Dec. 12, 2023
Seiko Epson Corporation, Tokyo, JP;
Takashi Koase, Shiojiri, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A liquid ejection apparatus includes a liquid ejection head, a liquid storage portion having a first storage chamber and a second storage chamber, a first discharge flow path communicating with an upper portion of the first storage chamber, a second discharge flow path communicating with an upper portion of the second storage chamber, a carriage, a coupling portion configured to be coupled to and separated from a coupled portion, a negative pressure generating section, a first opening/closing portion, a second opening/closing portion, a switching member configured to switch between a first state and a second state, the first opening/closing portion can be opened and closed in conjunction with a movement of the carriage when the switching member is in the first state, and the second opening/closing portion can be opened and closed in conjunction with the movement of the carriage when the switching member is in the second state.