Liquid Ejection Device Residual Liquid Management
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Solution Overview
Problem
Liquid ejection devices face contamination and reduced recyclability due to residual liquid, which remains in the device and can cause issues during disposal, leading to impaired recyclability.
Innovation Solution
A liquid ejection device with a remaining amount detection system that allows controlled discharge of liquid when the remaining amount falls below a threshold, either regulating or allowing discharge based on user input for disposal instructions, utilizing a control section to manage the ejection head and transport mechanisms for efficient liquid management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the liquid ejection device is disposed with residual liquid remaining in the device, then the device can be disposed of quickly without additional processing, but the recyclability of the device is impaired due to contamination
Solution Approach 1:
The control section performs preliminary action by automatically regulating liquid discharge before disposal is requested. When the remaining amount detection section detects that liquid remains in the ejection head, the control section proactively stops further discharge and prevents contamination, preparing the device for recycling without requiring additional user actions or time.
2Adaptability or versatility
If the control section regulates discharge of liquid when remaining amount falls below threshold, then recyclability is improved, but liquid may remain in the device causing contamination
Solution Approach 1:
The remaining amount detection section continuously monitors liquid levels and provides feedback to the control section. When liquid remains in the ejection head, the detection section signals the control section, which then regulates discharge to prevent contamination. This closed-loop feedback system ensures recyclability is maintained while preventing harmful contamination.
3Object-affected harmful factors
If the control section allows discharge of liquid when disposal instruction is given, then contamination is prevented, but additional user input and processing time are required
Solution Approach 1:
The control section performs self-service by automatically detecting when liquid remains in the ejection head and regulating discharge without requiring user input. The system serves itself by monitoring its own state through the remaining amount detection section and taking appropriate action to prevent contamination, eliminating the need for complex user interactions or additional processing steps.
Data Source
AI summary
A liquid ejection device regulates discharge of liquid from a liquid ejection head after a remaining amount detection section detects that remaining amount of liquid contained in a liquid container falls below a first threshold in a case where instruction related to disposal is not input by an input section, and allows discharge of the liquid from the liquid discharge head after the remaining amount detection section detects that the remaining amount of the liquid contained in the liquid container falls below the first threshold in a case where the instruction regarding disposal is input by the input section.