Liquid Ejection Head Heater Placement for Fabrication
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing liquid ejection heads face complexity in fabrication due to the difficulty of attaching heaters to the side surface of the supply channel structure, which complicates the process and may not effectively heat the ink to suitable viscosity for high viscosity ink ejection.
Innovation Solution
The heaters are disposed above the supply channel structure, allowing for easier attachment and effective heating of the ink, simplifying the fabrication process and enhancing ink heating efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If heaters are attached to the side surface of the supply channel structure, then the heating function is achieved, but the fabrication process becomes complicated
Solution Approach 1:
The heater is repositioned from the side surface (horizontal attachment) to the upper surface (vertical attachment) of the supply channel structure. This dimensional change transforms the attachment orientation from side-to-side to top-to-bottom, enabling simpler fabrication through dropwise attachment while maintaining effective heating of the ink in the supply channel.
2Temperature
If heaters are attached to the side surface of the supply channel structure, then the heating function is achieved, but the attachment becomes difficult
Solution Approach 1:
The attachment operation is simplified by changing the dimension of attachment from side surface to upper surface. The heater can be easily attached to the upper surface using adhesive or by dropping it into place, eliminating the difficulty of side surface attachment while preserving the heating function through thermal conduction to the supply channel.
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 simplifies the fabrication of the liquid ejection head and improves ink heating efficiency, enabling effective ejection of high viscosity ink without complicated steps.
Implementation Method 1
The heater is configured to heat liquid... the heater may be configured to heat the supply channel via the upper surface of the supply channel structure, thereby heating liquid more effectively
Data Source
AI summary
A liquid ejection head includes a supply channel structure and a heater. The supply channel structure has a supply channel configured to allow liquid to flow therefrom to ejection channels that are configured to lead liquid to nozzles aligned in a first direction. The heater is configured to heat liquid. Assuming that a side of the liquid ejection head, in which the nozzles are provided, is defined as a lower side of the liquid ejection head, the heater is disposed above the supply channel structure.