Ink-jet Printer Second Ink Chamber Visibility
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Users of ink-jet printing apparatuses may incorrectly perceive ink consumption due to the second ink chamber being inaccessible for visual inspection, leading to a false indication of ink depletion when the ink cartridge is mounted.
Innovation Solution
The second ink chamber is designed to be visible from the outside through a transparent window or direct exposure, with a length range of 0.5 L ≤ d ≤ 1.2 L, allowing users to monitor its ink level and preventing excessive ink transfer from the cartridge, thus addressing the perception of ink consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of stationary object
If the second ink chamber is disposed deeper inside the ink-jet printing apparatus, then the ink storage capacity and internal space utilization are improved, but the user cannot visually inspect the ink level, leading to false perception of ink consumption
Solution Approach 1:
The patent applies transparency as a visual indicator mechanism. The second ink chamber is designed with transparent or translucent material that allows users to visually inspect the ink level inside. This transparency acts as a visual signal system that communicates ink status without requiring the chamber to be externally accessible, resolving the contradiction between deep internal placement for space utilization and visual monitoring capability.
2Loss of information
If the second ink chamber is made transparent for visual inspection, then user awareness of ink level is improved, but the structural integrity and sealing may be compromised
Solution Approach 1:
The patent employs composite construction for the second ink chamber, combining transparent or translucent materials with sealing components. The chamber body uses transparent material for visibility, while integrated sealing structures (such as O-rings, gaskets, or sealed interfaces) ensure proper sealing and prevent leakage. This composite approach allows simultaneous achievement of visual inspection capability and reliable sealing.
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
This configuration ensures users are not misled about ink consumption and allows for efficient use of the apparatus's internal space by providing a clear view of the second ink chamber's ink level, enhancing user experience and preventing unnecessary concerns about ink depletion.
Implementation Method 1
The rotatable member includes a float with a lower specific gravity than that of ink... When the liquid surface of the ink stored in the second ink chamber is higher than a predetermined height, the rotatable member is positioned at a predetermined position owing to the buoyancy of the ink.
Implementation Method 2
The second ink chamber is designed to be visible from the outside through a transparent window or direct exposure
Data Source
AI summary
An ink-jet printing apparatus includes an ink-cartridge mounting unit to which an ink cartridge having a first ink chamber containing ink is to be mounted, and a second ink chamber. The second ink chamber stores ink supplied from the first ink chamber. The ink-jet printing apparatus is configured such that, in a case where the ink cartridge is mounted to the ink-cartridge mounting unit, the second ink chamber can be viewed from outside of the ink-jet printing apparatus. An equation 0.5 L≤d≤1.2 L is satisfied, where d is a length of the second ink chamber, and L is a length of the ink cartridge in a direction in which the ink cartridge is inserted into the ink-jet printing apparatus.