Liquid Ejection Nozzle Surface Checks After Media Contact
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Solution Overview
Problem
Liquid ejection apparatuses face issues with foreign materials adhering to ejection units due to medium contact, leading to potential clogging and impaired liquid ejection.
Innovation Solution
Incorporation of a detection unit to detect contact between the ejection unit and medium, along with a notification unit to prompt confirmation of nozzle surfaces, and a control method to perform appropriate recovery processing based on the adhesion position of coagulated matter.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the ejection unit contacts the medium during liquid ejection, then the liquid ejection function is maintained, but foreign materials may adhere to the ejection unit causing nozzle clogging
Solution Approach 1:
The detection unit detects contact between the ejection unit and medium before foreign material adhesion causes nozzle clogging. Upon detection, the notification unit prompts the user to confirm the nozzle surface, enabling preventive maintenance before the harmful effect occurs. This preliminary detection and notification mechanism prevents foreign material adhesion from progressing to nozzle clogging.
2Adaptability or versatility
If the second liquid containing coagulating component is ejected, then liquid ejection functionality is enhanced, but coagulated matter may adhere to the nozzle surface causing clogging
Solution Approach 1:
The detection unit continuously monitors the ejection unit for contact with the medium, providing real-time feedback about the ejection state. When contact is detected, the notification unit provides feedback to the user, prompting confirmation of the nozzle surface. This feedback loop enables timely detection and response to conditions that may lead to coagulated matter adhesion, allowing users to perform maintenance before clogging occurs.
3Reliability
If contact detection and notification functions are added, then nozzle clogging prevention is improved, but device complexity increases
Solution Approach 1:
The detection unit automatically detects contact between the ejection unit and medium without requiring continuous user monitoring. The notification unit automatically prompts the user when contact is detected, enabling the system to monitor and alert itself. This self-service approach minimizes the need for complex external monitoring systems while maintaining reliable nozzle clogging prevention.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Prevents nozzle clogging by enabling timely detection and appropriate recovery processing, ensuring consistent liquid ejection performance.
Implementation Method 1
a second ejection unit having a second nozzle surface in which a second nozzle is opened, the second ejection unit being configured to eject a second liquid from the second nozzle onto a medium, the second liquid containing a component for coagulating the first liquid
Data Source
AI summary
A liquid ejection apparatus includes an ejection unit including a first ejection unit having a first nozzle surface in which a first nozzle is opened, the first ejection unit being configured to eject a first liquid from the first nozzle onto a medium, and a second ejection unit having a second nozzle surface in which a second nozzle is opened, the second ejection unit being configured to eject a second liquid from the second nozzle onto a medium, the second liquid containing a component for coagulating the first liquid, a detection unit configured to detect contact between the ejection unit and a medium, and a notification unit configured to perform notification of information for prompting confirmation of the first nozzle surface and the second nozzle surface when the detection unit detects contact between the ejection unit and a medium.