Ink supply container

By introducing valve units and diaphragm components into the ink replenishment container, the problems of ink ejection and flow path resistance are solved, enabling a safe and convenient ink replenishment process, ensuring pressure balance inside and outside the container, and simplifying the operation process.

CN122425975APending Publication Date: 2026-07-21SEIKO EPSON CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-19
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing ink refill containers have problems such as ink spraying out and contaminating the cap or user's fingers during the refilling process, and increased flow resistance leading to longer refilling times.

Method used

An ink supply container was designed, which uses a valve unit to control fluid communication and combines a membrane component to restrict ink permeation while allowing air permeation, ensuring pressure balance inside and outside the container. The container is opened and closed by inserting or removing an ink inlet component, and the membrane component is located closer to the ink receiving part than the opening and closing part to prevent ink from spraying out.

Benefits of technology

It achieves the suppression of ink ejection during the replenishment process, simplifies the operation process, reduces flow path resistance, improves replenishment efficiency, prevents damage to film components, and ensures a safe and convenient replenishment experience.

✦ Generated by Eureka AI based on patent content.

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    Figure CN122425975A_ABST
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Abstract

An ink refill container is provided to improve user convenience. An ink refill container, which refills ink to a printer via an ink inlet member disposed on the printer and having a flow path, comprises: a container section having an ink receiving section and an ink outlet forming section, the ink receiving section containing ink and the ink outlet forming section having an outlet in fluid communication with the ink receiving section; a cap detachable from the container section, the cap sealing the outlet by being installed on the container section; a valve unit disposed between the outlet and the ink receiving section and controlling the fluid communication, the valve unit having an opening and closing section that is opened by inserting the ink inlet member into the ink outlet forming section and closed by removing the ink inlet member from the ink outlet forming section; and a membrane member disposed on a wall separating the interior and exterior of the container section, the membrane member being located closer to the ink receiving section than the opening and closing section, restricting ink permeation from the interior to the exterior and allowing air permeation from the interior to the exterior.
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Citation Information

Patent Citations

  • Liquid storage container

    JP2022018712A