Liquid Discharging Apparatus Support Structure for Ink Adhesion Prevention
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Solution Overview
Problem
Ink jet printing on mesh-like media often results in ink adhering to the back surface of the medium due to absorption by the support section during transportation, leading to printing quality issues.
Innovation Solution
A liquid discharging apparatus with a support section featuring a liquid permeable portion to support the medium and a liquid absorbing portion to hold ink, preventing ink from adhering to the back surface by absorbing it after passing through the permeable portion, and an oblique portion to guide the medium and eliminate transport path steps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If an absorbent support section is used to absorb ink that passes through the medium, then ink is effectively captured, but the absorbed ink adheres to the back surface of the medium during transportation
Solution Approach 1:
The support section is segmented into distinct functional regions: a liquid permeable portion that allows ink to pass through while supporting the medium, and a separate liquid holding portion that captures the ink. This segmentation prevents the medium from contacting ink-saturated areas, eliminating back surface adhesion while maintaining effective ink capture.
Solution Approach 2:
The liquid permeable portion acts as an intermediary structure between the medium and the ink collection system. It allows ink to pass through to the holding portion while its permeable nature prevents ink saturation and adhesion to the medium's back surface, solving the contradiction between ink capture and adhesion prevention.
2Object-affected harmful factors
If a support structure is added to support the medium and allow liquid passage, then ink adhesion is prevented, but device complexity increases
Solution Approach 1:
The liquid permeable portion utilizes porous material properties to achieve both medium support and liquid passage functions. The porous structure naturally allows ink to pass through while maintaining mechanical support, preventing the need for complex additional components and reducing overall device complexity.
Solution Approach 2:
The liquid permeable portion is designed to perform multiple functions simultaneously: supporting the medium, allowing liquid passage, and preventing ink adhesion. This multi-functionality reduces the need for separate components, thereby reducing device complexity while achieving the desired ink adhesion prevention.
3Adaptability or versatility
If the support structure is detachably disposed on the support surface, then adaptability to different media types is improved, but device complexity increases
Solution Approach 1:
The detachable support structure introduces dynamic reconfigurability to the support section. Users can attach or detach the liquid permeable portion based on the medium type, enabling adaptation to different media (e.g., mesh-like vs. non-mesh) while maintaining a relatively simple base structure that reduces overall complexity.
Solution Approach 2:
The detachable support structure serves as an intermediary component that can be selectively engaged based on medium requirements. This modular approach allows adaptability to different media types without requiring the entire support section to be complex, as only the necessary portion is attached when needed.
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 ink from adhering to the back surface of the medium during transportation, enhances printing quality by selecting appropriate support modes for different media types, and compensates for reduced heat transfer to the medium by adjusting heating unit settings.
Implementation Method 1
a liquid permeable portion configured to support the medium and allow liquid to pass therethrough
Implementation Method 2
the liquid holding portion be a liquid absorbing portion configured to hold liquid by absorbing the liquid
Data Source
AI summary
The printing apparatus (liquid discharging apparatus) is provided with a support section that supports a medium, a discharge section that discharges ink on the medium supported on the support section, and a transport unit that transports the medium in a transport direction. The support section includes a support structure including a liquid permeable portion that supports the medium and allows ink to pass therethrough, and a liquid holding portion that holds ink that has passed through the liquid permeable portion.