Printer Ink Tank Mounting Lever for Dual Size Compatibility
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Solution Overview
Problem
Existing inkjet printing apparatuses face difficulties in mounting and replacing ink tanks of varying sizes due to large insert/pullout forces and the need for adaptors, which can be troublesome and result in operational issues, especially when using ink tanks with low height or small capacity.
Innovation Solution
A printing apparatus with an ink tank mounting portion that includes an operation lever with a first pressing portion for larger ink tanks and a second pressing portion for smaller ink tanks, allowing for easy mounting and removal of both sizes without the need for an adaptor by switching between these portions based on the ink tank size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a lever mechanism using the principle of leverage is used to remove and replace ink tanks, then the ink tank can be removed and replaced, but ink tanks with low height or small capacity cannot be properly removed due to the lever contacting and pressing them inside
Solution Approach 1:
The pressing portion is designed to move dynamically between different positions. When a small-capacity ink tank is installed, the pressing portion is positioned to press the upper surface; when a regular-capacity ink tank is installed, the pressing portion moves to press the lower surface. This dynamic adjustment allows the same lever mechanism to accommodate different ink tank sizes without interference
Solution Approach 2:
The pressing mechanism is segmented into multiple pressing portions (first pressing portion for upper surface, second pressing portion for lower surface) that can be selectively engaged. This segmentation allows each portion to be optimized for specific ink tank types while maintaining a unified lever structure
2Adaptability or versatility
If an adaptor is mounted to an ink tank having a small capacity to make the tank overall size equal to that of a regular ink tank, then the ink tank can be mounted, but the operation becomes troublesome and the adaptor may be lost or damaged
Solution Approach 1:
The ink tank mounting portion is designed with multi-functionality to directly accommodate both small-capacity and regular-capacity ink tanks without requiring external adaptors. The mounting portion includes multiple pressing portions that can adapt to different tank sizes, making the system universal and eliminating the need for separate adaptor components
Solution Approach 2:
The adaptor component is completely removed from the system. Instead of requiring users to attach external adaptors to small-capacity tanks, the mounting portion itself is designed to directly support both tank types, extracting the problematic adaptor element while maintaining compatibility
3Reliability
If the insert/pullout force of the joint needle portion is large, then the connection is secure, but it becomes difficult to remove and replace the ink tank
Solution Approach 1:
The lever mechanism is designed to dynamically adjust the application point of force based on ink tank capacity. For small-capacity tanks, the first pressing portion applies force to the upper surface; for regular-capacity tanks, the second pressing portion applies force to the lower surface. This dynamic force application overcomes the secure joint needle connection without requiring excessive pullout force
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
Enables the mounting and replacement of ink tanks of different sizes without an adaptor, improving user convenience and reducing the risk of operational errors, while maintaining effective ink supply and print quality.
Implementation Method 1
an operation lever provided with a first pressing portion for pressing the first ink tank in the mounting direction at the time of mounting the first ink tank and a second pressing portion for pressing the second ink tank in the mounting direction
Data Source
AI summary
A printing apparatus is provided with an ink tank mounting portion for mounting an ink tank, the ink tank mounting portion being capable of mounting a first ink tank and a second ink tank shorter in length than the first ink tank. The ink tank mounting portion includes an operation lever provided with a first pressing portion for pressing the first ink tank in the mounting direction at the time of mounting the first ink tank and a second pressing portion for pressing the second ink tank in the mounting direction at the time of mounting the second ink tank. By operating the operation lever, the pressing portion for pressing the ink tank to be mounted is switched between the first pressing portion and the second pressing portion depending on whether the ink tank to be mounted is the first ink tank or the second ink tank.