Ink Container Capillary Fill Indicator
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Solution Overview
Problem
Existing printing fluid containers in printer systems face issues with overfilling and underfilling, which can affect print quality and lead to fluid leakage or premature depletion, as users lack accurate methods to determine the recommended maximum fill level.
Innovation Solution
Incorporating a channel on the internal surface of the container that utilizes capillary action to self-color with ink, providing a visible indicator for the recommended maximum fill amount, eliminating the need for expensive or less accurate labeling or electronic monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If labeling or electronic monitoring is used to indicate fill level, then measurement precision is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The container utilizes capillary action to automatically draw ink into the channel, causing it to self-color and indicate the fill level without requiring external power sources, sensors, or complex electronic monitoring systems. The structure serves its own measurement function through passive physical phenomena.
Solution Approach 2:
The patent replaces complex electronic monitoring systems or sophisticated labeling mechanisms with a simple capillary action-based indicator channel. This mechanical/physical approach eliminates the need for batteries, circuits, displays, or complex mechanical assemblies while achieving reliable fill level indication.
2Illumination intensity
If a light transmissive side wall is used, then visibility of the ink fill level is improved, but manufacturing precision requirements increase
Solution Approach 1:
The indicator channel changes color as ink fills it through capillary action, providing a clear visual contrast against the light transmissive side wall. This color change mechanism enhances visibility and makes the fill level indication more distinct, compensating for any variations in side wall transparency.
3Device complexity
If no fill level indication is provided, then device complexity is reduced, but loss of substance increases due to overfilling
Solution Approach 1:
The container automatically indicates its own fill status through the self-coloring channel, enabling users to stop filling at the appropriate level without requiring complex monitoring systems. This prevents overfilling and ink waste while maintaining structural simplicity.
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
The solution effectively prevents overfilling and underfilling by providing a clear, visible indication of the recommended ink fill level, enhancing print quality and extending the life of the ink containers.
Implementation Method 1
a channel formed in an internal surface of the light transmissive side wall, wherein, when ink is introduced to the ink container, the ink moves by capillary action along the channel
Data Source
AI summary
A printing fluid container (100) for use in a printing system is described. An example container includes a base (110) and a light transmissive side wall (120). The side wall extends from the base to define a chamber (130) for receiving and storing printing fluid within the container. The side wall has an internal surface (122) facing the chamber, said internal surface comprising a channel (140). The channel comprises a portion (142) indicating a height from the base, the height representing a predetermined fill amount. The channel is configured such that when the chamber contains printing fluid, printing fluid resides within the channel (140) and indicates the predetermined fill amount.